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• How to reference object values from subview?

  - by Frank Martin

  I have a ViewController and add programmatically a subview. During the initialization of the subview (initWithFrame) i want to set some attributes to values according to attributes that belong to another ViewControllers Child-Object (not a view). -(id)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) { // The following is kind of what i want self.myAttribute = [self.viewController.otherObject otherValue]; } return self; } Thanks in advance for any answers and comments how to improve the question. Frank

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• UIVIewController not released when view is dismissed

  - by Nelson Ko

  I have a main view, mainWindow, which presents a couple of buttons. Both buttons create a new UIViewController (mapViewController), but one will start a game and the other will resume it. Both buttons are linked via StoryBoard to the same View. They are segued to modal views as I'm not using the NavigationController. So in a typical game, if a person starts a game, but then goes back to the main menu, he triggers: [self dismissViewControllerAnimated:YES completion:nil ]; to return to the main menu. I would assume the view controller is released at this point. The user resumes the game with the second button by opening another instance of mapViewController. What is happening, tho, is some touch events will trigger methods on the original instance (and write status updates to them - therefore invisible to the current view). When I put a breakpoint in the mapViewController code, I can see the instance will be one or the other (one of which should be released). I have tried putting a delegate to the mainWindow clearing the view: [self.delegate clearMapView]; where in the mainWindow - (void) clearMapView{ gameWindow = nil; } I have also tried self.view=nil; in the mapViewController. The mapViewController code contains MVC code, where the model is static. I wonder if this may prevent ARC from releasing the view. The model.m contains: static CanShieldModel *sharedInstance; + (CanShieldModel *) sharedModel { @synchronized(self) { if (!sharedInstance) sharedInstance = [[CanShieldModel alloc] init]; return sharedInstance; } return sharedInstance; } Another post which may have a lead, but so far not successful, is UIViewController not being released when popped I have in ViewDidLoad: // checks to see if app goes inactive - saves. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(resignActive) name:UIApplicationWillResignActiveNotification object:nil]; with the corresponding in ViewDidUnload: [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationWillResignActiveNotification object:nil]; Does anyone have any suggestions? EDIT: - (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{ NSString *identifier = segue.identifier; if ([identifier isEqualToString: @"Start Game"]){ gameWindow = (ViewController *)[segue destinationViewController]; gameWindow.newgame=-1; gameWindow.delegate = self; } else if ([identifier isEqualToString: @"Resume Game"]){ gameWindow = (ViewController *)[segue destinationViewController]; gameWindow.newgame=0; gameWindow.delegate = self;

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• Have main website hosted on 3rd party while keeping Google Sites for Users

  - by vinnybozz

  Hi, I want a third party hosting my main site with PHP, MySQL, etc... I don't know which DNS records to modify. Is it possible to have the following mappings: www.example.com = 3rd party hosting blog.example.com = other 3rd party hosting mail.example.com = Google Mail docs.example.com = Google Docs sites.example.com = Google Sites sites.example.com/internal-site = Google Sites internal site ... Right now in TotalDNS, I have www = ghs.google.com. If I modify only this record to point to the IP provided by the 3rd party hosting, is it going to work ? Do I also need to add NameServers, remove the ones Google added ? Thx for the help

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• difference among NSthread and NStimer and NSNotifcation?

  - by senthilmuthu

  What is the difference among following codes 1) [NSThread detachNewThreadSelector:@selector(myFunction) toTarget:self withObject:thename]; 2) [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(myFunction:) userInfo:nil repeats:NO]; 3) [self performSelector:@selector(myFunction) withObject:nil afterDelay:myDelay]; 4) [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(myFunction:) name:thename object:nil];

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• How to replace an object in an NSMutableArray at a given index with a new object

  - by shakeelw

  Hi guys. I have an NSMutableArray object(retained, synthesized as all) that is initiated just fine and I can easily add objects to it using the 'addObject:' method. But if I want to replace an object at a certain index with a new one in that NSMutableArray, it doesn't work. For example: ClassA.h @interface ClassA : NSObject { NSMutableArray *list; } @property (nonatomic, copy, readwrite) NSMutableArray *list; end ClassA.m import "ClassA.h" @implementation ClassA @synthesize list; (id)init { [super init]; NSMutableArray *localList = [[NSMutableArray alloc] init]; self.list = localList; [localList release]; //Add initial data [list addObject:@"Hello "]; [list addObject:@"World"]; } // Custom set accessor to ensure the new list is mutable (void)setList:(NSMutableArray *)newList { if (list != newList) { [list release]; list = [newList mutableCopy]; } } -(void)updateTitle:(NSString *)newTitle:(NSString *)theIndex { int i = [theIndex intValue]-1; [self.list replaceObjectAtIndex:i withObject:newTitle]; NSLog((NSString *)[self.list objectAtIndex:i]); // gives the correct output } However, the change remains true only inside the method. from any other method, the NSLog((NSString *)[self.list objectAtIndex:i]); gives the same old value. How can I actually get the old object replaced with the new one at a specific index so that the change can be noticed from within any other method as well. I even modified the method like this, but the result is the same: -(void)updateTitle:(NSString *)newTitle:(NSString *)theIndex { int i = [theIndex intValue]-1; NSMutableArray *localList = [[NSMutableArray alloc] init]; localList = [localList mutableCopy]; for(int j = 0; j < [list count]; j++) { if(j == i) { [localList addObject:newTitle]; NSLog(@"j == 1"); NSLog([NSString stringWithFormat:@"%d", j]); } else { [localList addObject:(NSString *)[self.list objectAtIndex:j]]; } } [self.list release]; //self.list = [localList mutableCopy]; [self setList:localList]; [localList release]; } Please help out guys :)

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• A question related to back button

  - by user217572

  I'm doing code for state maintainance So what happens that ,my currnet view will be appear after pressing homme now in this view i want to add backbutton in normal condition i'm adding button like this, [self navigationItem].title = NSLocalizedString(@"login_title",@""); UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"back_button",@" ") style:UIBarButtonItemStylePlain target:self action:@selector(done)]; [self.navigationItem setHidesBackButton:YES animated:YES]; self.navigationItem.leftBarButtonItem = backItem; [backItem release];

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• Autorelease vs. Release

  - by Sheehan Alam

  Given the two scenarios, which code is best practice and why? Autorelease loginButton = [[[UIBarButtonItem alloc] initWithTitle:@"Login" style:UIBarButtonItemStylePlain target:self action:@selector(loginButtonClicked:)] autorelease]; self.navigationItem.rightBarButtonItem = loginButton; or Release loginButton = [[UIBarButtonItem alloc] initWithTitle:@"Login" style:UIBarButtonItemStylePlain target:self action:@selector(loginButtonClicked:)]; self.navigationItem.rightBarButtonItem = loginButton; [loginButton release];

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• Which linux server distrabution best to run lamp server for production enviroment?

  - by meyosef

  Which Linux server distribution the best to run lamp server for production environment? 1. sharing hosting 2. virtual hosting 3. dedicated hosting (Ubuntu server, redhat,....) Thanks, Yosef

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• Could I use urlize filter in this way ?

  - by xRobot

  Could I use urlize filter in this way? : from django.utils.html import urlize def save(self, force_insert=False, force_update=False): self.body = urlize(self.body) super(Post, self).save(force_insert, force_update) body is a TextField.

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• Overriding initial value in ModelForm

  - by schneck

  Hi, in my Django (1.2) project, I want to prepopulate a field in a modelform, but my new value is ignored. This is the snippet: class ArtefactForm(ModelForm): material = CharField(widget=AutoCompleteWidget('material', force_selection=False)) def __init__(self, *args, **kwargs): super(ArtefactForm, self).__init__(*args, **kwargs) self.fields['material'].initial = 'Test' I also tried with self.base_fields, but no effect: there is always the database-value displaying in the form. Any ideas?

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• Default subclass objects in Sqlalchemy?

  - by Timmy

  im using the example from the pylons book orm.mapper(Comment, comment_table) orm.mapper(Tag, tag_table) orm.mapper(Nav, nav_table, polymorphic_on=nav_table.c.type, polymorphic_identity='nav') orm.mapper(Section, section_table, inherits=Nav, polymorphic_identity='section') orm.mapper(Page, page_table, inherits=Nav, polymorphic_identity='page', properties={ 'comments':orm.relation(Comment, backref='page', cascade='all'), 'tags':orm.relation(Tag, secondary=pagetag_table) }) i am mostly copying from this, but is there a simple way have a default Page that gets referenced, but if users requests a change, create a new Page object? thanks i want something similar to this class DefaultPage(Page): __init__(self): self.a = a self.b = b self.c = c orm.mapper(DefaultPage, None, inherits=Nav, yada yada )

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• Django call function when an object gets added

  - by dotty

  Hay, i have a simple model class Manufacturer(models.Model): name = models.CharField() car_count = models.IntegerField() class Car(models.Model): maker = ForeignKey(Manufacturer) I want to update the car_count field when a car is added to a manufacturer, I'm aware i could just count the Manufacturer.car_set() to get the value, but i want the value to be stored within that car_count field. How would i do this? EDIT Would something like this work? def save(self): if self.id: car_count = self.car_set.count() self.save()

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• Is there any way to do this without using '__init__'?

  - by zjm1126

  class a(object): c=b()# how to call the b method d=4 def __init__(self): print self.c def b(self): return self.d+1 a() how to call the 'b' method not in the __init__ thanks the error is : Traceback (most recent call last): File "D:\zjm_code\a.py", line 12, in <module> class a(object): File "D:\zjm_code\a.py", line 13, in a c=b()# how to call the b method NameError: name 'b' is not defined

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• Are python list comprehensions always a good programming practice?

  - by dln385

  To make the question clear, I'll use a specific example. I have a list of college courses, and each course has a few fields (all of which are strings). The user gives me a string of search terms, and I return a list of courses that match all of the search terms. This can be done in a single list comprehension or a few nested for loops. Here's the implementation. First, the Course class: class Course: def __init__(self, date, title, instructor, ID, description, instructorDescription, *args): self.date = date self.title = title self.instructor = instructor self.ID = ID self.description = description self.instructorDescription = instructorDescription self.misc = args Every field is a string, except misc, which is a list of strings. Here's the search as a single list comprehension. courses is the list of courses, and query is the string of search terms, for example "history project". def searchCourses(courses, query): terms = query.lower().strip().split() return tuple(course for course in courses if all( term in course.date.lower() or term in course.title.lower() or term in course.instructor.lower() or term in course.ID.lower() or term in course.description.lower() or term in course.instructorDescription.lower() or any(term in item.lower() for item in course.misc) for term in terms)) You'll notice that a complex list comprehension is difficult to read. I implemented the same logic as nested for loops, and created this alternative: def searchCourses2(courses, query): terms = query.lower().strip().split() results = [] for course in courses: for term in terms: if (term in course.date.lower() or term in course.title.lower() or term in course.instructor.lower() or term in course.ID.lower() or term in course.description.lower() or term in course.instructorDescription.lower()): break for item in course.misc: if term in item.lower(): break else: continue break else: continue results.append(course) return tuple(results) That logic can be hard to follow too. I have verified that both methods return the correct results. Both methods are nearly equivalent in speed, except in some cases. I ran some tests with timeit, and found that the former is three times faster when the user searches for multiple uncommon terms, while the latter is three times faster when the user searches for multiple common terms. Still, this is not a big enough difference to make me worry. So my question is this: which is better? Are list comprehensions always the way to go, or should complicated statements be handled with nested for loops? Or is there a better solution altogether?

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• do has any way to do this not using '__init__'

  - by zjm1126

  class a(object): c=b()# how to call the b method d=4 def __init__(self): print self.c def b(self): return self.d+1 a() how to call the 'b' method not in the __init__ thanks

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• The remote host closed the connection. The error code is 0x80070057

  - by Jalpesh P. Vadgama

  While creating a PDF or any file with asp.net pages I was getting following error. Exception Type:System.Web.HttpException The remote host closed the connection. The error code is 0x80072746. at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status, Byte[] header, Int32 keepConnected, Int32 totalBodySize, Int32 numBodyFragments, IntPtr[] bodyFragments, Int32[] bodyFragmentLengths, Int32 doneWithSession, Int32 finalStatus, Boolean& async) at System.Web.Hosting.ISAPIWorkerRequest.FlushCachedResponse(Boolean isFinal) at System.Web.Hosting.ISAPIWorkerRequest.FlushResponse(Boolean finalFlush) at System.Web.HttpResponse.Flush(Boolean finalFlush) at System.Web.HttpResponse.Flush() at System.Web.UI.HttpResponseWrapper.System.Web.UI.IHttpResponse.Flush() at System.Web.UI.PageRequestManager.RenderFormCallback(HtmlTextWriter writer, Control containerControl) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) at System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) at System.Web.UI.HtmlFormWrapper.System.Web.UI.IHtmlForm.RenderControl(HtmlTextWriter writer) at System.Web.UI.PageRequestManager.RenderPageCallback(HtmlTextWriter writer, Control pageControl) at System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) at System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) at System.Web.UI.Page.Render(HtmlTextWriter writer) at System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) at System.Web.UI.Control.RenderControl(HtmlTextWriter writer) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) Exception Type:System.Web.HttpException The remote host closed the connection. The error code is 0x80072746. at System.Web.Hosting.ISAPIWorkerRequestInProcForIIS6.FlushCore(Byte[] status, After searching and analyzing I have found that client was disconnected and still I am flushing the response which I am doing for creating PDF files from the stream. To fix this kind of error we can use Response.IsClientConnected property to check whether client is connected or not and then we can flush and end response from client. Here is the sample code to fix that problem. if (Response.IsClientConnected) { Response.Flush(); Response.End(); } That’s it Hope this will help you..Stay tuned for more.. Till that Happy Programming!! Technorati Tags: Exception,ASp.NET

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• I used a 301 Permanent Redirect to a 3rd party site by mistake! Can I stop the redirection?

  - by Dees

  Oh Noes! I've been parking a domain name for a friend/client of mine on my hosting provider (Dreamhost, FWIW) for a while, and they eventually asked me to redirect their domain to a 3rd party website which is currently featuring some relevant promotional content. Once this period ends, we will probably go ahead and set up a proper website for the domain on my hosting account. I used Dreamhost's "redirect" hosting option in their domain configuration panel, not realizing that it would implement a 301 Permanent redirect, or what the implications were. Now it seems that for any client that has visited the site anytime recently, the 301 redirect is still cached/in effect, although I have changed the domain settings back to regular Dreamhost full site hosting. It seems that the only thing that can be done is to wait out the TTL/cache expiration for the redirect. I have no idea how long that might be, so I'm wondering if there is any good way to cache-bust the redirect or otherwise undo its long-term effects. I put a simple html meta refresh in the domain folder to replace the 301 to keep the intended functionality in place, but I'm still not able to access the domain's other content normally, even via FTP, etc. Isn't there anything I can do? Otherwise, how long does it take for a cached redirect to expire? It's gonna be a bummer if it's really permanent.

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• Is it worth moving from Microsoft tech to Linux, NodeJS & other open source frameworks to save money for a start-up?

  - by dormisher

  I am currently getting involved in a startup, I am the only developer involved at the moment, and the other guys are leaving all the tech decisions up to me at the moment. For my day job I work at a software house that uses Microsoft tech on a day to day basis, we utilise .NET, SqlServer, Windows Server etc. However, I realise that as a startup we need to keep costs down, and after having a brief look at the cost of hosting for Windows I was shocked to see some of the prices for a dedicated server. The cheapest I found was £100 a month. Also if the business needs to scale in the future and we end up needing multiple servers, we could end up shelling out £10's of £000's a year in SQL Server / Windows Server licenses etc. I then had a quick look at the price of Linux hosting for a dedicated server and saw the price was waaaaaay lower than windows hosting. One place was offering a machine with 2 cores for less than £20 a month. This got me thinking maybe the way to go is open source on Linux. As I write a lot of Javascript at work (I'm working on a single page backbone app at the moment), I thought maybe NodeJS and a web framework like Express would be cool to use. I then thought that instead of using SQL why not use an open source NoSQL database like MongoDB, which has great support on NodeJS? My only concern is that some of the work the application is going to do is going to be dynamically building images and various other image related stuff, i.e. stuff that is quite CPU heavy - so I'm thinking of maybe writing anything CPU heavy in C++ and consuming it as a module in Node. That's the background - but basically is Linux a good match for: Hosting a NodeJS/Express site? Compiling C++ node modules? Using a NoSQL DB like MongoDB? And is it a good idea to move to these unfamiliar technologies to save money?

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• Quick guide to Oracle IRM 11g: Configuring SSL

  - by Simon Thorpe

  Quick guide to Oracle IRM 11g index So far in this guide we have an IRM Server up and running, however I skipped over SSL configuration in the previous article because I wanted to focus in more detail now. You can, if you wish, not bother with setting up SSL, but considering this is a security technology it is worthwhile doing. Contents Setting up a one way, self signed SSL certificate in WebLogic Setting up an official SSL certificate in Apache 2.x Configuring Apache to proxy traffic to the IRM server There are two common scenarios in which an Oracle IRM server is configured. For a development or evaluation system, people usually communicate directly to the WebLogic Server running the IRM service. However in a production environment and for some proof of concept evaluations that require a setup reflecting a production system, the traffic to the IRM server travels via a web server proxy, commonly Apache. In this guide we are building an Oracle Enterprise Linux based IRM service and this article will go over the configuration of SSL in WebLogic and also in Apache. Like in the past articles, we are going to use two host names in the configuration below,irm.company.com will refer to the public Apache server irm.company.internal will refer to the internal WebLogic IRM server Setting up a one way, self signed SSL certificate in WebLogic First lets look at creating just a simple self signed SSL certificate to be used in WebLogic. This is a quick and easy way to get SSL working in your environment, however the downside is that no browsers are going to trust this certificate you create and you'll need to manually install the certificate onto any machine's communicating with the server. This is fine for development or when you have only a few users evaluating the system, but for any significant use it's usually better to have a fully trusted certificate in use and I explain that in the next section. But for now lets go through creating, installing and testing a self signed certificate. We use a library in Java to create the certificates, open a console and running the following commands. Note you should choose your own secure passwords whenever you see password below. [oracle@irm /] source /oracle/middleware/wlserver_10.3/server/bin/setWLSEnv.sh [oracle@irm /] cd /oracle/middleware/user_projects/domains/irm_domain/config/fmwconfig/ [oracle@irm /] java utils.CertGen -selfsigned -certfile MyOwnSelfCA.cer -keyfile MyOwnSelfKey.key -keyfilepass password -cn "irm.oracle.demo" [oracle@irm /] java utils.ImportPrivateKey -keystore MyOwnIdentityStore.jks -storepass password -keypass password -alias trustself -certfile MyOwnSelfCA.cer.pem -keyfile MyOwnSelfKey.key.pem -keyfilepass password [oracle@irm /] keytool -import -trustcacerts -alias trustself -keystore TrustMyOwnSelf.jks -file MyOwnSelfCA.cer.der -keyalg RSA We now have two Java Key Stores, MyOwnIdentityStore.jks and TrustMyOwnSelf.jks. These contain keys and certificates which we will use in WebLogic Server. Now we need to tell the IRM server to use these stores when setting up SSL connections for incoming requests. Make sure the Admin server is running and login into the WebLogic Console at http://irm.company.intranet:7001/console and do the following; In the menu on the left, select the + next to Environment to expose the submenu, then click on Servers. You will see two servers in the list, AdminServer(admin) and IRM_server1. If the IRM server is running, shut it down either by hitting CONTROL + C in the console window it was started from, or you can switch to the CONTROL tab, select IRM_server1 and then select the Shutdown menu and then Force Shutdown Now. In the Configuration tab select IRM_server1 and switch to the Keystores tab. By default WebLogic Server uses it's own demo identity and trust. We are now going to switch to the self signed one's we've just created. So select the Change button and switch to Custom Identity and Custom Trust and hit save. Now we have to complete the resulting fields, the setting's i've used in my evaluation server are below. IdentityCustom Identity Keystore: /oracle/middleware/user_projects/domains/irm_domain/config/fmwconfig/MyOwnIdentityStore.jks Custom Identity Keystore Type: JKS Custom Identity Keystore Passphrase: password Confirm Custom Identity Keystore Passphrase: password TrustCustom Trust Keystore: /oracle/middleware/user_projects/domains/irm_domain/config/fmwconfig/TrustMyOwnSelf.jks Custom Trust Keystore Type: JKS Custom Trust Keystore Passphrase: password Confirm Custom Trust Keystore Passphrase: password Now click on the SSL tab for the IRM_server1 and enter in the alias and passphrase, in my demo here the details are; IdentityPrivate Key Alias: trustself Private Key Passphrase: password Confirm Private Key Passphrase: password And hit save. Now lets test a connection to the IRM server over HTTPS using SSL. Go back to a console window and start the IRM server, a quick reminder on how to do this is... [oracle@irm /] cd /oracle/middleware/user_projects/domains/irm_domain/bin [oracle@irm /] ./startManagedWeblogic IRM_server1 Once running, open a browser and head to the SSL port of the server. By default the IRM server will be listening on the URL https://irm.company.intranet:16101/irm_rights. Note in the example image on the right the port is 7002 because it's a system that has the IRM services installed on the Admin server, this isn't typical (or advisable). Your system is going to have a separate managed server which will be listening on port 16101. Once you open this address you will notice that your browser is going to complain that the server certificate is untrusted. The images on the right show how Firefox displays this error. You are going to be prompted every time you create a new SSL session with the server, both from the browser and more annoyingly from the IRM Desktop. If you plan on always using a self signed certificate, it is worth adding it to the Windows certificate store so that when you are accessing sealed content you do not keep being informed this certificate is not trusted. Follow these instructions (which are for Internet Explorer 8, they may vary for your version of IE.) Start Internet Explorer and open the URL to your IRM server over SSL, e.g. https://irm.company.intranet:16101/irm_rights. IE will complain that about the certificate, click on Continue to this website (not recommended). From the IE Tools menu select Internet Options and from the resulting dialog select Security and then click on Trusted Sites and then the Sites button. Add to the list of trusted sites a URL which mates the server you are accessing, e.g. https://irm.company.intranet/ and select OK. Now refresh the page you were accessing and next to the URL you should see a red cross and the words Certificate Error. Click on this button and select View Certificates. You will now see a dialog with the details of the self signed certificate and the Install Certificate... button should be enabled. Click on this to start the wizard. Click next and you'll be asked where you should install the certificate. Change the option to Place all certificates in the following store. Select browse and choose the Trusted Root Certification Authorities location and hit OK. You'll then be prompted to install the certificate and answer yes. You also need to import the root signed certificate into the same location, so once again select the red Certificate Error option and this time when viewing the certificate, switch to the Certification Path tab and you should see a CertGenCAB certificate. Select this and then click on View Certificate and go through the same process as above to import the certificate into the store. Finally close all instances of the IE browser and re-access the IRM server URL again, this time you should not receive any errors. Setting up an official SSL certificate in Apache 2.x At this point we now have an IRM server that you can communicate with over SSL. However this certificate isn't trusted by any browser because it's path of trust doesn't end in a recognized certificate authority (CA). Also you are communicating directly to the WebLogic Server over a non standard SSL port, 16101. In a production environment it is common to have another device handle the initial public internet traffic and then proxy this to the WebLogic server. The diagram below shows a very simplified view of this type of deployment. What i'm going to walk through next is configuring Apache to proxy traffic to a WebLogic server and also to use a real SSL certificate from an official CA. First step is to configure Apache to handle incoming requests over SSL. In this guide I am configuring the IRM service in Oracle Enterprise Linux 5 update 3 and Apache 2.2.3 which came with OpenSSL and mod_ssl components. Before I purchase an SSL certificate, I need to generate a certificate request from the server. Oracle.com uses Verisign and for my own personal needs I use cheaper certificates from GoDaddy. The following instructions are specific to Apache, but there are many references out there for other web servers. For Apache I have OpenSSL and the commands are; [oracle@irm /] cd /usr/bin [oracle@irm bin] openssl genrsa -des3 -out irm-apache-server.key 2048 Generating RSA private key, 2048 bit long modulus ............................+++ .........+++ e is 65537 (0x10001) Enter pass phrase for irm-apache-server.key: Verifying - Enter pass phrase for irm-apache-server.key: [oracle@irm bin] openssl req -new -key irm-apache-server.key -out irm-apache-server.csr Enter pass phrase for irm-apache-server.key: You are about to be asked to enter information that will be incorporated into your certificate request. What you are about to enter is what is called a Distinguished Name or a DN. There are quite a few fields but you can leave some blank For some fields there will be a default value, If you enter '.', the field will be left blank. ----- Country Name (2 letter code) [GB]:US State or Province Name (full name) [Berkshire]:CA Locality Name (eg, city) [Newbury]:San Francisco Organization Name (eg, company) [My Company Ltd]:Oracle Organizational Unit Name (eg, section) []:Security Common Name (eg, your name or your server's hostname) []:irm.company.com Email Address []:[email protected] Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []:testing An optional company name []: You must make sure to remember the pass phrase you used in the initial key generation, you will need this when later configuring Apache. In the /usr/bin directory there are now two new files. The irm-apache-server.csr contains our certificate request and is what you cut and paste, or upload, to your certificate authority when you purchase and validate your SSL certificate. In response you will typically get two files. Your server certificate and another certificate file that will likely contain a set of certificates from your CA which validate your certificate's trust. Next we need to configure Apache to use these files. Typically there is an ssl.conf file which is where all the SSL configuration is done. On my Oracle Enterprise Linux server this file is located in /etc/httpd/conf.d/ssl.conf and i've added the following lines. <VirtualHost irm.company.com> # Setup SSL for irm.company.com ServerName irm.company.com SSLEngine On SSLCertificateFile /oracle/secure/irm.company.com.crt SSLCertificateKeyFile /oracle/secure/irm.company.com.key SSLCertificateChainFile /oracle/secure/gd_bundle.crt </VirtualHost> Restarting Apache (apachectl restart) and I can now attempt to connect to the Apache server in a web browser, https://irm.company.com/. If all is configured correctly I should now see an Apache test page delivered to me over HTTPS. Configuring Apache to proxy traffic to the IRM server Final piece in setting up SSL is to have Apache proxy requests for the IRM server but do so securely. So the requests to Apache will be over HTTPS using a legitimate certificate, but we can also configure Apache to proxy these requests internally across to the IRM server using SSL with the self signed certificate we generated at the start of this article. To do this proxying we use the WebLogic Web Server plugin for Apache which you can download here from Oracle. Download the zip file and extract onto the server. The file extraction reveals a set of zip files, each one specific to a supported web server. In my instance I am using Apache 2.2 32bit on an Oracle Enterprise Linux, 64 bit server. If you are not sure what version your Apache server is, run the command /usr/sbin/httpd -V and you'll see version and it its 32 or 64 bit. Mine is a 32bit server so I need to extract the file WLSPlugin1.1-Apache2.2-linux32-x86.zip. The from the resulting lib folder copy the file mod_wl.so into /usr/lib/httpd/modules/. First we want to test that the plug in will work for regular HTTP traffic. Edit the httpd.conf for Apache and add the following section at the bottom. LoadModule weblogic_module modules/mod_wl.so <IfModule mod_weblogic.c>    WebLogicHost irm.company.internal    WebLogicPort 16100    WLLogFile /tmp/wl-proxy.log </IfModule> <Location /irm_rights>    SetHandler weblogic-handler </Location> <Location /irm_desktop>    SetHandler weblogic-handler </Location> <Location /irm_sealing>    SetHandler weblogic-handler </Location> <Location /irm_services>    SetHandler weblogic-handler </Location> Now restart Apache again (apachectl restart) and now open a browser to http://irm.company.com/irm_rights. Apache will proxy the HTTP traffic from the port 80 of your Apache server to the IRM service listening on port 16100 of the WebLogic Managed server. Note above I have included all four of the Locations you might wish to proxy. http://irm.company.internalirm_rights is the URL to the management website, /irm_desktop is the URL used for the IRM Desktop to communicate. irm_sealing is for web services based document sealing and irm_services is for IRM server web services. The last two are typically only used when you have the IRM server integrated with another application and it is unlikely you'd be accessing these resources from the public facing Apache server. However, just in case, i've mentioned them above. Now let's enable SSL communication from Apache to WebLogic. In the ZIP file we extracted were some more modules we need to copy into the Apache folder. Looking back in the lib that we extracted, there are some more files. Copy the following into the /usr/lib/httpd/modules/ folder. libwlssl.so libnnz11.so libclntsh.so.11.1 Now the documentation states that should only need to do this, but I found that I also needed to create an environment variable called LD_LIBRARY_PATH and point this to the folder /usr/lib/httpd/modules/. If I didn't do this, starting Apache with the WebLogic module configured to SSL would throw the error. [crit] (20014)Internal error: WL SSL Init failed for server: (null) on 0 So I had to edit the file /etc/profile and add the following lines at the bottom. You may already have the LD_LIBRARY_PATH variable defined, therefore simply add this path to it. LD_LIBRARY_PATH=/usr/lib/httpd/modules/ export LD_LIBRARY_PATH Now the WebLogic plug in uses an Oracle Wallet to store the required certificates.You'll need to copy the self signed certificate from the IRM server over to the Apache server. Copy over the MyOwnSelfCA.cer.der into the same folder where you are storing your public certificates, in my example this is /oracle/secure. It's worth mentioning these files should ONLY be readable by root (the user Apache runs as). Now lets create an Oracle Wallet and import the self signed certificate from the IRM server. The file orapki was included in the bin folder of the Apache 1.1 plugin zip you extracted. orapki wallet create -wallet /oracle/secure/my-wallet -auto_login_only orapki wallet add -wallet /oracle/secure/my-wallet -trusted_cert -cert MyOwnSelfCA.cer.der -auto_login_only Finally change the httpd.conf to reflect that we want the WebLogic Apache plug-in to use HTTPS/SSL and not just plain HTTP. <IfModule mod_weblogic.c>    WebLogicHost irm.company.internal    WebLogicPort 16101    SecureProxy ON    WLSSLWallet /oracle/secure/my-wallet    WLLogFile /tmp/wl-proxy.log </IfModule> Then restart Apache once more and you can go back to the browser to test the communication. Opening the URL https://irm.company.com/irm_rights will proxy your request to the WebLogic server at https://irm.company.internal:16101/irm_rights. At this point you have a fully functional Oracle IRM service, the next step is to create a sealed document and test the entire system.

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• A pseudo-listener for AlwaysOn Availability Groups for SQL Server virtual machines running in Azure

  - by MikeD

  I am involved in a project that is implementing SharePoint 2013 on virtual machines hosted in Azure. The back end data tier consists of two Azure VMs running SQL Server 2012, with the SharePoint databases contained in an AlwaysOn Availability Group. I used this "Tutorial: AlwaysOn Availability Groups in Windows Azure (GUI)" to help me implement this setup.Because Azure DHCP will not assign multiple unique IP addresses to the same VM, having an AG Listener in Azure is not currently supported.  I wanted to figure out another mechanism to support a "pseudo listener" of some sort. First, I created a CNAME (alias) record in the DNS zone with a short TTL (time to live) of 5 minutes (I may yet make this even shorter). The record represents a logical name (let's say the alias is SPSQL) of the server to connect to for the databases in the availability group (AG). When Server1 was hosting the primary replica of the AG, I would set the CNAME of SPSQL to be SERVER1. When the AG failed over to Server1, I wanted to set the CNAME to SERVER2. Seemed simple enough.(It's important to point out that the connection strings for my SharePoint services should use the CNAME alias, and not the actual server name. This whole thing falls apart otherwise.)To accomplish this, I created identical SQL Agent Jobs on Server1 and Server2, with two steps:1. Step 1: Determine if this server is hosting the primary replica.This is a TSQL step using this script:declare @agName sysname = 'AGTest'set nocount on declare @primaryReplica sysnameselect @primaryReplica = agState.primary_replicafrom sys.dm_hadr_availability_group_states agState   join sys.availability_groups ag on agstate.group_id = ag.group_id   where ag.name = @AGname if not exists(   select *    from sys.dm_hadr_availability_group_states agState   join sys.availability_groups ag on agstate.group_id = ag.group_id   where @@Servername = agstate.primary_replica    and ag.name = @AGname)begin   raiserror ('Primary replica of %s is not hosted on %s, it is hosted on %s',17,1,@Agname, @@Servername, @primaryReplica) endThis script determines if the primary replica value of the AG group is the same as the server name, which means that our server is hosting the current AG (you should update the value of the @AgName variable to the name of your AG). If this is true, I want the DNS alias to point to this server. If the current server is not hosting the primary replica, then the script raises an error. Also, if the script can't be executed because it cannot connect to the server, that also will generate an error. For the job step settings, I set the On Failure option to "Quit the job reporting success". The next step in the job will set the DNS alias to this server name, and I only want to do that if I know that it is the current primary replica, otherwise I don't want to do anything. I also include the step output in the job history so I can see the error message.Job Step 2: Update the CNAME entry in DNS with this server's name.I used a PowerShell script to accomplish this:$cname = "SPSQL.contoso.com"$query = "Select * from MicrosoftDNS_CNAMEType"$dns1 = "dc01.contoso.com"$dns2 = "dc02.contoso.com"if ((Test-Connection -ComputerName $dns1 -Count 1 -Quiet) -eq $true){    $dnsServer = $dns1}elseif ((Test-Connection -ComputerName $dns2 -Count 1 -Quiet) -eq $true) {   $dnsServer = $dns2}else{  $msg = "Unable to connect to DNS servers: " + $dns1 + ", " + $dns2   Throw $msg}$record = Get-WmiObject -Namespace "root\microsoftdns" -Query $query -ComputerName $dnsServer  | ? { $_.Ownername -match $cname }$thisServer = [System.Net.Dns]::GetHostEntry("LocalHost").HostName + "."$currentServer = $record.RecordData if ($currentServer -eq $thisServer ) {     $cname + " CNAME is up to date: " + $currentServer}else{    $cname + " CNAME is being updated to " + $thisServer + ". It was " + $currentServer    $record.RecordData = $thisServer    $record.put()}This script does a few things:finds a responsive domain controller (Test-Connection does a ping and returns a Boolean value if you specify the -Quiet parameter)makes a WMI call to the domain controller to get the current CNAME record value (Get-WmiObject)gets the FQDN of this server (GetHostEntry)checks if the CNAME record is correct and updates it if necessary(You should update the values of the variables $cname, $dns1 and $dns2 for your environment.)Since my domain controllers are also hosted in Azure VMs, either one of them could be down at any point in time, so I need to find a DC that is responsive before attempting the DNS call. The other little thing here is that the CNAME record contains the FQDN of a machine, plus it ends with a period. So the comparison of the CNAME record has to take the trailing period into account. When I tested this step, I was getting ACCESS DENIED responses from PowerShell for the Get-WmiObject cmdlet that does a remote lookup on the DC. This occurred because the SQL Agent service account was not a member of the Domain Admins group, so I decided to create a SQL Credential to store the credentials for a domain administrator account and use it as a PowerShell proxy (rather than give the service account Domain Admins membership).In SQL Management Studio, right click on the Credentials node (under the server's Security node), and choose New Credential...Then, under SQL Agent-->Proxies, right click on the PowerShell node and choose New Proxy...Finally, in the job step properties for the PowerShell step, select the new proxy in the Run As drop down.I created this two step Job on both nodes of the Availability Group, but if you had more than two nodes, just create the same job on all the servers. I set the schedule for the job to execute every minute.When the server that is hosting the primary replica is running the job, the job history looks like this:The job history on the secondary server looks like this: When a failover occurs, the SQL Agent job on the new primary replica will detect that the CNAME needs to be updated within a minute. Based on the TTL of the CNAME (which I said at the beginning was 5 minutes), the SharePoint servers will get the new alias within five minutes and should be able to reconnect. I may want to shorten up the TTL to reduce the time it takes for the client connections to use the new alias. Using a DNS CNAME and a SQL Agent Job on all servers hosting AG replicas, I was able to create a pseudo-listener to automatically change the name of the server that was hosting the primary replica, for a scenario where I cannot use a regular AG listener (in this case, because the servers are all hosted in Azure).    

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• Laissez les bon temps rouler! (Microsoft BI Conference 2010)

  - by smisner

  Laissez les bons temps rouler" is a Cajun phrase that I heard frequently when I lived in New Orleans in the mid-1990s. It means "Let the good times roll!" and encapsulates a feeling of happy expectation. As I met with many of my peers and new acquaintances at the Microsoft BI Conference last week, this phrase kept running through my mind as people spoke about their plans in their respective businesses, the benefits and opportunities that the recent releases in the BI stack are providing, and their expectations about the future of the BI stack.Notwithstanding some jabs here and there to point out the platform is neither perfect now nor will be anytime soon (along with admissions that the competitors are also not perfect), and notwithstanding several missteps by the event organizers (which I don't care to enumerate), the overarching mood at the conference was positive. It was a refreshing change from the doom and gloom hovering over several conferences that I attended in 2009. Although many people expect economic hardships to continue over the coming year or so, everyone I know in the BI field is busier than ever and expects to stay busy for quite a while.Self-Service BISelf-service was definitely a theme of the BI conference. In the keynote, Ted Kummert opened with a look back to a fairy tale vision of self-service BI that he told in 2008. At that time, the fairy tale future was a time when "every end user was able to use BI technologies within their job in order to move forward more effectively" and transitioned to the present time in which SQL Server 2008 R2, Office 2010, and SharePoint 2010 are available to deliver managed self-service BI.This set of technologies is presumably poised to address the needs of the 80% of users that Kummert said do not use BI today. He proceeded to outline a series of activities that users ought to be able to do themselves--from simple changes to a report like formatting or an addtional data visualization to integration of an additional data source. The keynote then continued with a series of demonstrations of both current and future technology in support of self-service BI. Some highlights that interested me:PowerPivot, of course, is the flagship product for self-service BI in the Microsoft BI stack. In the TechEd keynote, which was open to the BI conference attendees, Amir Netz (twitter) impressed the audience by demonstrating interactivity with a workbook containing 100 million rows. He upped the ante at the BI keynote with his demonstration of a future-state PowerPivot workbook containing over 2 billion records. It's important to note that this volume of data is being processed by a server engine, and not in the PowerPivot client engine. (Yes, I think it's impressive, but none of my clients are typically wrangling with 2 billion records at a time. Maybe they're thinking too small. This ability to work quickly with large data sets has greater implications for BI solutions than for self-service BI, in my opinion.)Amir also demonstrated KPIs for the future PowerPivot, which appeared to be easier to implement than in any other Microsoft product that supports KPIs, apart from simple KPIs in SharePoint. (My initial reaction is that we have one more place to build KPIs. Great. It's confusing enough. I haven't seen how well those KPIs integrate with other BI tools, which will be important for adoption.)One more PowerPivot feature that Amir showed was a graphical display of the lineage for calculations. (This is hugely practical, especially if you build up calculations incrementally. You can more easily follow the logic from calculation to calculation. Furthermore, if you need to make a change to one calculation, you can assess the impact on other calculations.)Another product demonstration will be available within the next 30 days--Pivot for Reporting Services. If you haven't seen this technology yet, check it out at www.getpivot.com. (It definitely has a wow factor, but I'm skeptical about its practicality. However, I'm looking forward to trying it out with data that I understand.)Michael Tejedor (twitter) demonstrated a feature that I think is really interesting and not emphasized nearly enough--overshadowed by PowerPivot, no doubt. That feature is the Microsoft Business Intelligence Indexing Connector, which enables search of the content of Excel workbooks and Reporting Services reports. (This capability existed in MOSS 2007, but was more cumbersome to implement. The search results in SharePoint 2010 are not only cooler, but more useful by describing whether the content is found in a table or a chart, for example.)This may yet be the dawning of the age of self-service BI - a phrase I've heard repeated from time to time over the last decade - but I think BI professionals are likely to stay busy for a long while, and need not start looking for a new line of work. Kummert repeatedly referenced strategic BI solutions in contrast to self-service BI to emphasize that self-service BI is not a replacement for the services that BI professionals provide. After all, self-service BI does not appear magically on user desktops (or whatever device they want to use). A supporting infrastructure is necessary, and grows in complexity in proportion to the need to simplify BI for users.It's one thing to hear the party line touted by Microsoft employees at the BI keynote, but it's another to hear from the people who are responsible for implementing and supporting it within an organization. Rob Collie (blog | twitter), Kasper de Jonge (blog | twitter), Vidas Matelis (site | twitter), and I were invited to join Andrew Brust (blog | twitter) as he led a Birds of a Feather session at TechEd entitled "PowerPivot: Is It the BI Deal-Changer for Developers and IT Pros?" I would single out the prevailing concern in this session as the issue of control. On one side of this issue were those who were concerned that they would lose control once PowerPivot is implemented. On the other side were those who believed that data should be freely accessible to users in PowerPivot, and even acknowledgment that users would get the data they want even if it meant they would have to manually enter into a workbook to have it ready for analysis. For another viewpoint on how PowerPivot played out at the conference, see Rob Collie's observations.Collaborative BII have been intrigued by the notion of collaborative BI for a very long time. Before I discovered BI, I was a Lotus Notes developer and later a manager of developers, working in a software company that enabled collaboration in the legal industry. Not only did I help create collaborative systems for our clients, I created a complete project management from the ground up to collaboratively manage our custom development work. In that case, collaboration involved my team, my client contacts, and me. I was also able to produce my own BI from that system as well, but didn't know that's what I was doing at the time. Only in recent years has SharePoint begun to catch up with the capabilities that I had with Lotus Notes more than a decade ago. Eventually, I had the opportunity at that job to formally investigate BI as another product offering for our software, and the rest - as they say - is history. I built my first data warehouse with Scott Cameron (who has also ventured into the authoring world by writing Analysis Services 2008 Step by Step and was at the BI Conference last week where I got to reminisce with him for a bit) and that began a career that I never imagined at the time.Fast forward to 2010, and I'm still lauding the virtues of collaborative BI, if only the tools will catch up to my vision! Thus, I was anxious to see what Donald Farmer (blog | twitter) and Rita Sallam of Gartner had to say on the subject in their session "Collaborative Decision Making." As I suspected, the tools aren't quite there yet, but the vendors are moving in the right direction. One thing I liked about this session was a non-Microsoft perspective of the state of the industry with regard to collaborative BI. In addition, this session included a better demonstration of SharePoint collaborative BI capabilities than appeared in the BI keynote. Check out the video in the link to the session to see the demonstration. One of the use cases that was demonstrated was linking from information to a person, because, as Donald put it, "People don't trust data, they trust people."The Microsoft BI Stack in GeneralA question I hear all the time from students when I'm teaching is how to know what tools to use when there is overlap between products in the BI stack. I've never taken the time to codify my thoughts on the subject, but saw that my friend Dan Bulos provided good insight on this topic from a variety of perspectives in his session, "So Many BI Tools, So Little Time." I thought one of his best points was that ideally you should be able to design in your tool of choice, and then deploy to your tool of choice. Unfortunately, the ideal is yet to become real across the platform. The closest we come is with the RDL in Reporting Services which can be produced from two different tools (Report Builder or Business Intelligence Development Studio's Report Designer), manually, or by a third-party or custom application. I have touted the idea for years (and publicly said so about 5 years ago) that eventually more products would be RDL producers or consumers, but we aren't there yet. Maybe in another 5 years.Another interesting session that covered the BI stack against a backdrop of competitive products was delivered by Andrew Brust. Andrew did a marvelous job of consolidating a lot of information in a way that clearly communicated how various vendors' offerings compared to the Microsoft BI stack. He also made a particularly compelling argument about how the existence of an ecosystem around the Microsoft BI stack provided innovation and opportunities lacking for other vendors. Check out his presentation, "How Does the Microsoft BI Stack...Stack Up?"Expo HallI had planned to spend more time in the Expo Hall to see who was doing new things with the BI stack, but didn't manage to get very far. Each time I set out on an exploratory mission, I got caught up in some fascinating conversations with one or more of my peers. I find interacting with people that I meet at conferences just as important as attending sessions to learn something new. There were a couple of items that really caught me eye, however, that I'll share here.Pragmatic Works. Whether you develop SSIS packages, build SSAS cubes, or author SSRS reports (or all of the above), you really must take a look at BI Documenter. Brian Knight (twitter) walked me through the key features, and I must say I was impressed. Once you've seen what this product can do, you won't want to document your BI projects any other way. You can download a free single-user database edition, or choose from more feature-rich standard or professional editions.Microsoft Press ebooks. I also stopped by the O'Reilly Media booth to meet some folks that one of my acquisitions editors at Microsoft Press recommended. In case you haven't heard, Microsoft Press has partnered with O'Reilly Media for distribution and publishing. Apart from my interest in learning more about O'Reilly Media as an author, an advertisement in their booth caught me eye which I think is a really great move. When you buy Microsoft Press ebooks through the O'Reilly web site, you can receive it in any (or all) of the following formats where possible: PDF, epub, .mobi for Kindle and .apk for Android. You also have lifetime DRM-free access to the ebooks. As someone who is an avid collector of books, I fnd myself running out of room for storage. In addition, I travel a lot, and it's hard to lug my reference library with me. Today's e-reader options make the move to digital books a more viable way to grow my library. Having a variety of formats means I am not limited to a single device, and lifetime access means I don't have to worry about keeping track of where I've stored my files. Because the e-books are DRM-free, I can copy and paste when I'm compiling notes, and I can print pages when necessary. That's a winning combination in my mind!Overall, I was pleased with the BI conference. There were many more sessions that I couldn't attend, either because the room was full when I got there or there were multiple sessions running concurrently that I wanted to see. Fortunately, many of the sessions are accessible for viewing online at http://www.msteched.com/2010/NorthAmerica along with the TechEd sessions. You can spot the BI sessions by the yellow skyline on the title slide of the presentation as shown below. 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• RuntimeError: maximum recursion depth exceeded while calling a Python object

  - by Bilal Basharat

  this error arises when i try to run the following test case which is written in models.py of my django app named 'administration' : from django.test import Client, TestCase from django.core import mail class ClientTest( TestCase ): fixtures = [ 'testdata.json' ] def test_get_register( self ): response = self.client.get( '/accounts/register/', {} ) self.assertEqual( response.status_code, 200 ) the error arises at this line specifically: response = self.client.get( '/accounts/register/', {} ) my django version is 1.2.1 and python 2.6 and satchmo version is 0.9.2-pre hg-unknown. I code in windows platform(xp sp2). The command to run test case is: python manage.py test administration the complete error log is as follow: site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 121, in by_host site = by_host(host=host[4:], id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 124, in by_host site = by_host(host = 'www.%s' % host, id_only=id_only) File "build\bdist.win32\egg\threaded_multihost\sites.py", line 101, in by_host site = Site.objects.get(domain=host) File "C:\django\django\db\models\manager.py", line 132, in get return self.get_query_set().get(*args, **kwargs) File "C:\django\django\db\models\query.py", line 336, in get num = len(clone) File "C:\django\django\db\models\query.py", line 81, in __len__ self._result_cache = list(self.iterator()) File "C:\django\django\db\models\query.py", line 269, in iterator for row in compiler.results_iter(): File "C:\django\django\db\models\sql\compiler.py", line 672, in results_iter for rows in self.execute_sql(MULTI): File "C:\django\django\db\models\sql\compiler.py", line 717, in execute_sql sql, params = self.as_sql() File "C:\django\django\db\models\sql\compiler.py", line 65, in as_sql where, w_params = self.query.where.as_sql(qn=qn, connection=self.connection) File "C:\django\django\db\models\sql\where.py", line 91, in as_sql sql, params = child.as_sql(qn=qn, connection=connection) File "C:\django\django\db\models\sql\where.py", line 94, in as_sql sql, params = self.make_atom(child, qn, connection) File "C:\django\django\db\models\sql\where.py", line 141, in make_atom lvalue, params = lvalue.process(lookup_type, params_or_value, connection) File "C:\django\django\db\models\sql\where.py", line 312, in process connection=connection, prepared=True) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\__init__.py", line 323, in get_db_prep _lookup return [self.get_db_prep_value(value, connection=connection, prepared=prepar ed)] File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) File "C:\django\django\db\models\fields\subclassing.py", line 53, in inner return func(*args, **kwargs) RuntimeError: maximum recursion depth exceeded while calling a Python object ---------------------------------------------------------------------- Ran 7 tests in 48.453s FAILED (errors=1) Destroying test database 'default'...

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• iphone twitter posting

  - by user313100

  I have some twitter code I modified from: http://amanpages.com/sample-iphone-example-project/twitteragent-tutorial-tweet-from-iphone-app-in-one-line-code-with-auto-tinyurl/ His code used view alerts to login and post to twitter but I wanted to change mine to use windows. It is mostly working and I can login and post to Twitter. However, when I try to post a second time, the program crashes with a: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSCFString text]: unrecognized selector sent to instance 0xc2d560' I'm a bit of a coding newbie so any help would be appreciated. If I need to post more code, ask. #import "TwitterController.h" #import "xmacros.h" #define XAGENTS_TWITTER_CONFIG_FILE DOC_PATH(@"xagents_twitter_conifg_file.plist") static TwitterController* agent; @implementation TwitterController BOOL isLoggedIn; @synthesize parentsv, sharedLink; -(id)init { self = [super init]; maxCharLength = 140; parentsv = nil; isLogged = NO; isLoggedIn = NO; txtMessage = [[UITextView alloc] initWithFrame:CGRectMake(30, 225, 250, 60)]; UIImageView* bg = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"fb_message_bg.png"]]; bg.frame = txtMessage.frame; lblCharLeft = [[UILabel alloc] initWithFrame:CGRectMake(15, 142, 250, 20)]; lblCharLeft.font = [UIFont systemFontOfSize:10.0f]; lblCharLeft.textAlignment = UITextAlignmentRight; lblCharLeft.textColor = [UIColor whiteColor]; lblCharLeft.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0]; txtUsername = [[UITextField alloc]initWithFrame:CGRectMake(125, 190, 150, 30)]; txtPassword = [[UITextField alloc]initWithFrame:CGRectMake(125, 225, 150, 30)]; txtPassword.secureTextEntry = YES; lblId = [[UILabel alloc]initWithFrame:CGRectMake(15, 190, 100, 30)]; lblPassword = [[UILabel alloc]initWithFrame:CGRectMake(15, 225, 100, 30)]; lblTitle = [[UILabel alloc]initWithFrame:CGRectMake(80, 170, 190, 30)]; lblId.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0]; lblPassword.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0]; lblTitle.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0]; lblId.textColor = [UIColor whiteColor]; lblPassword.textColor = [UIColor whiteColor]; lblTitle.textColor = [UIColor whiteColor]; txtMessage.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0]; lblId.text = @"Username:"; lblPassword.text =@"Password:"; lblTitle.text = @"Tweet This Message"; lblId.textAlignment = UITextAlignmentRight; lblPassword.textAlignment = UITextAlignmentRight; lblTitle.textAlignment = UITextAlignmentCenter; txtUsername.borderStyle = UITextBorderStyleRoundedRect; txtPassword.borderStyle = UITextBorderStyleRoundedRect; txtMessage.delegate = self; txtUsername.delegate = self; txtPassword.delegate = self; login = [[UIButton alloc] init]; login = [UIButton buttonWithType:UIButtonTypeRoundedRect]; login.frame = CGRectMake(165, 300, 100, 30); [login setTitle:@"Login" forState:UIControlStateNormal]; [login addTarget:self action:@selector(onLogin) forControlEvents:UIControlEventTouchUpInside]; cancel = [[UIButton alloc] init]; cancel = [UIButton buttonWithType:UIButtonTypeRoundedRect]; cancel.frame = CGRectMake(45, 300, 100, 30); [cancel setTitle:@"Back" forState:UIControlStateNormal]; [cancel addTarget:self action:@selector(onCancel) forControlEvents:UIControlEventTouchUpInside]; post = [[UIButton alloc] init]; post = [UIButton buttonWithType:UIButtonTypeRoundedRect]; post.frame = CGRectMake(165, 300, 100, 30); [post setTitle:@"Post" forState:UIControlStateNormal]; [post addTarget:self action:@selector(onPost) forControlEvents:UIControlEventTouchUpInside]; back = [[UIButton alloc] init]; back = [UIButton buttonWithType:UIButtonTypeRoundedRect]; back.frame = CGRectMake(45, 300, 100, 30); [back setTitle:@"Back" forState:UIControlStateNormal]; [back addTarget:self action:@selector(onCancel) forControlEvents:UIControlEventTouchUpInside]; loading1 = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; loading1.frame = CGRectMake(140, 375, 40, 40); loading1.hidesWhenStopped = YES; [loading1 stopAnimating]; loading2 = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; loading2.frame = CGRectMake(140, 375, 40, 40); loading2.hidesWhenStopped = YES; [loading2 stopAnimating]; twitterWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; [twitterWindow addSubview:txtUsername]; [twitterWindow addSubview:txtPassword]; [twitterWindow addSubview:lblId]; [twitterWindow addSubview:lblPassword]; [twitterWindow addSubview:login]; [twitterWindow addSubview:cancel]; [twitterWindow addSubview:loading1]; UIImageView* logo = [[UIImageView alloc] initWithFrame:CGRectMake(35, 165, 48, 48)]; logo.image = [UIImage imageNamed:@"Twitter_logo.png"]; [twitterWindow addSubview:logo]; [logo release]; twitterWindow2 = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; [twitterWindow2 addSubview:lblTitle]; [twitterWindow2 addSubview:lblCharLeft]; [twitterWindow2 addSubview:bg]; [twitterWindow2 addSubview:txtMessage]; [twitterWindow2 addSubview:lblURL]; [twitterWindow2 addSubview:post]; [twitterWindow2 addSubview:back]; [twitterWindow2 addSubview:loading2]; [twitterWindow2 bringSubviewToFront:txtMessage]; UIImageView* logo1 = [[UIImageView alloc] initWithFrame:CGRectMake(35, 155, 42, 42)]; logo1.image = [UIImage imageNamed:@"twitter-logo-twit.png"]; [twitterWindow2 addSubview:logo1]; [logo1 release]; twitterWindow.hidden = YES; twitterWindow2.hidden = YES; return self; } -(void) onStart { [[UIApplication sharedApplication]setStatusBarOrientation:UIInterfaceOrientationPortrait]; twitterWindow.hidden = NO; [twitterWindow makeKeyWindow]; [self refresh]; if(isLogged) { twitterWindow.hidden = YES; twitterWindow2.hidden = NO; [twitterWindow2 makeKeyWindow]; } } - (void)textFieldDidBeginEditing:(UITextField *)textField { [textField becomeFirstResponder]; } - (BOOL)textFieldShouldReturn:(UITextField *)textField { [textField resignFirstResponder]; return NO; } - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{ const char* str = [text UTF8String]; int s = str[0]; if(s!=0) if((range.location + range.length) > maxCharLength){ return NO; }else{ int left = 139 - ([sharedLink length] + [textView.text length]); lblCharLeft.text= [NSString stringWithFormat:@"%d",left]; // this fix was done by Jackie //http://amanpages.com/sample-iphone-example-project/twitteragent-tutorial-tweet-from-iphone-app-in-one-line-code-with-auto-tinyurl/#comment-38026299 if([text isEqualToString:@"\n"]){ [textView resignFirstResponder]; return FALSE; }else{ return YES; } } int left = 139 - ([sharedLink length] + [textView.text length]); lblCharLeft.text= [NSString stringWithFormat:@"%d",left]; return YES; } -(void) onLogin { [loading1 startAnimating]; NSString *postURL = @"http://twitter.com/statuses/update.xml"; NSString *myRequestString = [NSString stringWithFormat:@""]; NSData *myRequestData = [ NSData dataWithBytes: [ myRequestString UTF8String ] length: [ myRequestString length ] ]; NSMutableURLRequest *request = [ [ NSMutableURLRequest alloc ] initWithURL: [ NSURL URLWithString:postURL ] ]; [ request setHTTPMethod: @"POST" ]; [ request setHTTPBody: myRequestData ]; NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:request delegate:self]; if (!theConnection) { UIAlertView* aler = [[UIAlertView alloc] initWithTitle:@"Network Error" message:@"Failed to Connect to twitter" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil]; [aler show]; [aler release]; } [request release]; } -(void) onCancel { [[NSUserDefaults standardUserDefaults] setValue:@"NotActive" forKey:@"Twitter"]; twitterWindow.hidden = YES; [[UIApplication sharedApplication]setStatusBarOrientation:UIInterfaceOrientationLandscapeRight]; } -(void) onPost { [loading2 startAnimating]; NSString *postURL = @"http://twitter.com/statuses/update.xml"; NSString *myRequestString; if(sharedLink){ myRequestString = [NSString stringWithFormat:@"&status=%@",[NSString stringWithFormat:@"%@\n%@",txtMessage.text,sharedLink]]; }else{ myRequestString = [NSString stringWithFormat:@"&status=%@",[NSString stringWithFormat:@"%@",txtMessage.text]]; } NSData *myRequestData = [ NSData dataWithBytes: [ myRequestString UTF8String ] length: [ myRequestString length ] ]; NSMutableURLRequest *request = [ [ NSMutableURLRequest alloc ] initWithURL: [ NSURL URLWithString:postURL ] ]; [ request setHTTPMethod: @"POST" ]; [ request setHTTPBody: myRequestData ]; NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:request delegate:self]; if (!theConnection) { UIAlertView* aler = [[UIAlertView alloc] initWithTitle:@"Network Error" message:@"Failed to Connect to twitter" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil]; [aler show]; [aler release]; } [request release]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { // release the connection, and the data object [connection release]; if(isAuthFailed){ UIAlertView* aler = [[UIAlertView alloc] initWithTitle:@"Login Failed" message:@"Invalid ID/Password" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil]; [aler show]; [aler release]; }else{ UIAlertView* aler = [[UIAlertView alloc] initWithTitle:@"Connection Failed" message:@"Failed to connect to Twitter" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil]; [aler show]; [aler release]; } isAuthFailed = NO; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { isAuthFailed = NO; [loading1 stopAnimating]; [loading2 stopAnimating]; if(isLogged) { UIAlertView* aler = [[UIAlertView alloc] initWithTitle:@"Twitter" message:@"Tweet Posted!" delegate:nil cancelButtonTitle:@"Close" otherButtonTitles:nil]; [aler show]; [aler release]; txtMessage = @""; [self refresh]; } else { twitterWindow.hidden = YES; twitterWindow2.hidden = NO; [[NSNotificationCenter defaultCenter] postNotificationName:@"notifyTwitterLoggedIn" object:nil userInfo:nil]; } isLogged = YES; isLoggedIn = YES; } -(void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { NSDictionary* config = [NSDictionary dictionaryWithObjectsAndKeys:txtUsername.text,@"username",txtPassword.text,@"password",nil]; [config writeToFile:XAGENTS_TWITTER_CONFIG_FILE atomically:YES]; if ([challenge previousFailureCount] == 0) { NSURLCredential *newCredential; newCredential=[NSURLCredential credentialWithUser:txtUsername.text password:txtPassword.text persistence:NSURLCredentialPersistenceNone]; [[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge]; } else { isAuthFailed = YES; [[challenge sender] cancelAuthenticationChallenge:challenge]; } } -(void) refresh { NSDictionary* config = [NSDictionary dictionaryWithContentsOfFile:XAGENTS_TWITTER_CONFIG_FILE]; if(config){ NSString* uname = [config valueForKey:@"username"]; if(uname){ txtUsername.text = uname; } NSString* pw = [config valueForKey:@"password"]; if(pw){ txtPassword.text = pw; } } } + (TwitterController*)defaultAgent{ if(!agent){ agent = [TwitterController new]; } return agent; } -(void)dealloc { [super dealloc]; [txtMessage release]; [txtUsername release]; [txtPassword release]; [lblId release]; [lblPassword release]; [lblURL release]; [twitterWindow2 release]; [twitterWindow release]; } @end

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• Scaling MKMapView Annotations relative to the zoom level

  - by Jonathan

  The Problem I'm trying to create a visual radius circle around a annonation, that remains at a fixed size in real terms. Eg. So If i set the radius to 100m, as you zoom out of the Map view the radius circle gets progressively smaller. I've been able to achieve the scaling, however the radius rect/circle seems to "Jitter" away from the Pin Placemark as the user manipulates the view. The Manifestation Here is a video of the behaviour. The Implementation The annotations are added to the Mapview in the usual fashion, and i've used the delegate method on my UIViewController Subclass (MapViewController) to see when the region changes. -(void)mapView:(MKMapView *)pMapView regionDidChangeAnimated:(BOOL)animated{ //Get the map view MKCoordinateRegion region; CGRect rect; //Scale the annotations for( id<MKAnnotation> annotation in [[self mapView] annotations] ){ if( [annotation isKindOfClass: [Location class]] && [annotation conformsToProtocol:@protocol(MKAnnotation)] ){ //Approximately 200 m radius region.span.latitudeDelta = 0.002f; region.span.longitudeDelta = 0.002f; region.center = [annotation coordinate]; rect = [[self mapView] convertRegion:foo toRectToView: self.mapView]; if( [[[self mapView] viewForAnnotation: annotation] respondsToSelector:@selector(setRadiusFrame:)] ){ [[[self mapView] viewForAnnotation: annotation] setRadiusFrame:rect]; } } } The Annotation object (LocationAnnotationView)is a subclass of the MKAnnotationView and it's setRadiusFrame looks like this -(void) setRadiusFrame:(CGRect) rect{ CGPoint centerPoint; //Invert centerPoint.x = (rect.size.width/2) * -1; centerPoint.y = 0 + 55 + ((rect.size.height/2) * -1); rect.origin = centerPoint; [self.radiusView setFrame:rect]; } And finally the radiusView object is a subclass of a UIView, that overrides the drawRect method to draw the translucent circles. setFrame is also over ridden in this UIView subclass, but it only serves to call [UIView setNeedsDisplay] in addition to [UIView setFrame:] to ensure that the view is redrawn after the frame has been updated. The radiusView object's (CircleView) drawRect method looks like this -(void) drawRect:(CGRect)rect{ //NSLog(@"[CircleView drawRect]"); [self setBackgroundColor:[UIColor clearColor]]; //Declarations CGContextRef context; CGMutablePathRef path; //Assignments context = UIGraphicsGetCurrentContext(); path = CGPathCreateMutable(); //Alter the rect so the circle isn't cliped //Calculate the biggest size circle if( rect.size.height > rect.size.width ){ rect.size.height = rect.size.width; } else if( rect.size.height < rect.size.width ){ rect.size.width = rect.size.height; } rect.size.height -= 4; rect.size.width -= 4; rect.origin.x += 2; rect.origin.y += 2; //Create paths CGPathAddEllipseInRect(path, NULL, rect ); //Create colors [[self areaColor] setFill]; CGContextAddPath( context, path); CGContextFillPath( context ); [[self borderColor] setStroke]; CGContextSetLineWidth( context, 2.0f ); CGContextSetLineCap(context, kCGLineCapSquare); CGContextAddPath(context, path ); CGContextStrokePath( context ); CGPathRelease( path ); //CGContextRestoreGState( context ); } Thanks for bearing with me, any help is appreciated. Jonathan

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• App crashes after a few seconds

  - by Declan Scott

  when i launch my app, on trying to do something, it will crash after a couple of seconds. I have warnings of warning: incorrect implementation of "downloadTextViewCOntroller. I also have "method definiton for -timerFinished not found and"method definiton for -timerFinished not found" this is my .m plese help me. the .h is also t the bottom // // downloadTextViewController.m // downloadText // // Created by Declan Scott on 18/03/10. // Copyright MyCompanyName 2010. All rights reserved. // #import "downloadTextViewController.h" @implementation downloadTextViewController @synthesize start; -(IBAction)tapit { start.hidden = YES; } -(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration { if (fabsf(acceleration.x) 2.0 || fabsf(acceleration.y) 2.0 || fabsf(acceleration.z) 2.0) { UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"This app was developed by Declan Scott and demonstrates NSURLConnection and NSMutableData" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; [alert show]; [alert release]; } } (NSString *) saveFilePath { NSArray *pathArray = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); return [[pathArray objectAtIndex:0] stringByAppendingPathComponent:@"savedddata.plist"]; } (void)applicationWillTerminate:(UIApplication *)application { NSArray *values = [[NSArray alloc] initWithObjects:textView.text,nil]; [values writeToFile:[self saveFilePath] atomically:YES]; [values release]; } (void)viewDidLoad { UIAccelerometer *accelerometer = [UIAccelerometer sharedAccelerometer]; accelerometer.delegate = self; accelerometer.updateInterval = 1.0f/60.0f; NSString *myPath = [self saveFilePath]; NSLog(myPath); BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:myPath]; if (fileExists) { NSArray *values = [[NSArray alloc] initWithContentsOfFile:myPath]; textView.text = [values objectAtIndex:0]; [values release]; } // notification UIApplication *myApp = [UIApplication sharedApplication]; // add yourself to the dispatch table [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationWillTerminate:) name:UIApplicationWillTerminateNotification object:myApp]; [super viewDidLoad]; } // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (IBAction)fetchData { loadingAlert = [[UIAlertView alloc] initWithTitle:@"Loading…\n\n\n\n" message:nil delegate:self cancelButtonTitle:@"Cancel Timer" otherButtonTitles:nil]; [loadingAlert show]; UIActivityIndicatorView *activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite]; activityView.frame = CGRectMake(139.0f-18.0f, 60.0f, 37.0f, 37.0f); [loadingAlert addSubview:activityView]; [activityView startAnimating]; timer = [NSTimer scheduledTimerWithTimeInterval:10.0f target:self selector:@selector(timerFinished) userInfo:nil repeats:NO]; NSURLRequest *downloadRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://simpsonatyapps.com/exampletext.txt"] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:1.0]; NSURLConnection *downloadConnection = [[NSURLConnection alloc] initWithRequest:downloadRequest delegate:self]; if (downloadConnection) downloadedData = [[NSMutableData data] retain]; else { // Error } } (void)connection:(NSURLConnection *)downloadConnection didReceiveData:(NSData *)data { [downloadedData appendData:data]; NSString *file = [[NSString alloc] initWithData:downloadedData encoding:NSUTF8StringEncoding]; textView.text = file; // get rid of alert [loadingAlert dismissWithClickedButtonIndex:-1 animated:YES]; [loadingAlert release]; /// add badge [[UIApplication sharedApplication] setApplicationIconBadgeNumber:1]; } (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } (void)viewDidUnload { // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } (void)dealloc { [super dealloc]; } (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse *)cachedResponse { return nil; } @end // // downloadTextViewController.h // downloadText // // Created by Declan Scott on 18/03/10. // Copyright MyCompanyName 2010. All rights reserved. // import @interface downloadTextViewController : UIViewController { IBOutlet UITextView *textView; NSMutableData *downloadedData; UIAlertView *loadingAlert; NSTimer *timer; IBOutlet UIButton *start; } - (IBAction)fetchData; - (IBAction)tapIt; - (void)timerFinished; @property (nonatomic, retain) UIButton *start; @end

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