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• Storing user info in Session using an Object vs. normal variables

  - by justinl

  I'm in the process of implementing a user authentication system for my website. I'm using an open source library that maintains user information by creating a User object and storing that object inside my php SESSION variable. Is this the best way to store and access that information? I find it a bit of a hassle to access the user variables because I have to create an object to access them first: $userObj = $_SESSION['userObject']; $userObj->userId; instead of just accessing the user id like this how I would usually store the user ID: $_SESSION['userId']; Is there an advantage to storing a bunch of user data as an object instead of just storing them as individual SESSION variables? ps - The library also seems to store a handful of variables inside the user object (id, username, date joined, email, last user db query) but I really don't care to have all that information stored in my session. I only really want to keep the user id and username.

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• NSURL Out of Scope

  - by ct2k7

  Hi, I've an issue with this piece of code: NSURL *url = [[NSURL alloc] initWithString:@"http://authenticate.radonsystems.net/products.xml"]; NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithContentsOfURL:url]; //Initialize the delegate. XMLParser *parser = [[XMLParser alloc] initXMLParser]; //Set delegate [xmlParser setDelegate:parser]; //Start parsing the XML file. BOOL success = [xmlParser parse]; if(success) NSLog(@"No Errors"); else NSLog(@"Error Error Error!!!"); } // this is the breakpoint! I've listed where the breakpoint is - (I've placed one on every line of code in the area) Now at this point, success = NO, and looking back through the code, I reach the first line. XCode tells me that the url variable is out of scope with code 0x15db010. What does this mean?

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• Show choosen option in a notification Feed, Django

  - by apoo

  Hey I have a model where : LIST_OPTIONS = ( ('cheap','cheap'), ('expensive','expensive'), ('normal', 'normal'), ) then I have assigned the LIST_OPTIONS to nature variable. nature = models.CharField(max_length=15, choices=LIST_OPTIONS, null=False, blank=False). then I save it: if self.pk: new=False else: new=True super(Listing, self).save(force_insert, force_update) if new and notification: notification.send(User.objects.all().exclude(id=self.owner.id), "listing_new", {'listing':self, }, ) then in my management.py: def create_notice_types(app, created_models,verbosity, **kwargs): notification.create_notice_type("listing_new", _("New Listing"), _("someone has posted a new listing"), default=2) and now in my notice.html I want to show to users different sentences based on the options that they have choose so something like this: LINK href="{{ listing.owner.get_absolute_url }} {{listing.owner}} {% ifequal listing.nature "For Sale" %} created a {{ listing.nature }} listing, <a href="{{ listing.get_absolute_url }}">{{listing.title}}</a>. {% ifequals listing.equal "Give Away"%} is {{ listing.nature }} , LINK href="{{ listing.get_absolute_url }}" {{listing.title}}. {% ifequal listing.equal "Looking For"%} is {{ listing.nature }} , LINK href="{{ listing.get_absolute_url }}" {{listing.title}} {% endifequal %} {% endifequal %} {% endifequal %} Could you please help me out with this. Thank you

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• Parametrized Strategy Pattern

  - by ott

  I have several Java classes which implement the strategy pattern. Each class has variable number parameters of different types: interface Strategy { public data execute(data); } class StrategyA implements Strategy { public data execute(data); } class StrategyB implements Strategy { public StrategyB(int paramA, int paramB); public data execute(data); } class StrategyB implements Strategy { public StrategyB(int paramA, String paramB, double paramC); public data execute(data); } Now I want that the user can enter the parameters in some kind of UI. The UI should be chosen at runtime, i.e. the strategies should be independent of it. The parameter dialog should not be monolithic and there should be the possibility to make it behave and look different for each strategy and UI (e.g. console or Swing). How would you solve this problem?

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• Using widthratio tag properly

  - by owca

  Hi. In my application I need to show in template stocks for my products. So from product view I'm returning variable {{stock}} which is my amount and then I'm trying to use it in template : <div class="bar_in" width="{% widthratio {{stock}} 10 100 %}px" style="background:black;"></div> But it constantly give me "Could not parse the remainder: '{{stock}}' from '{{stock}}' " error. I've tried casting it as int but still the same problem. How to make it work properly ?

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• Django: Summing values of records grouped by foreign key

  - by Dan0

  Hi there In django, given the following models (slightly simplified), I'm struggling to work out how I would get a view including sums of groups class Client(models.Model): api_key = models.CharField(unique=True, max_length=250, primary_key=True) name = models.CharField(unique=True, max_length=250) class Purchase(models.Model): purchase_date = models.DateTimeField() client = models.ForeignKey(SavedClient, to_field='api_key') amount_to_invoice = models.FloatField(null=True) For a given month, I'd like to see e.g. April 2010 For Each Client that purchased this month: * CLient: Name * Total amount of Purchases for this month * Total cost of purchases for this month For each Purchase made by client: * Date * Amount * Etc I've been looking into django annotation, but can't get my head around how to sum values of a field for a particular group over a particular month and send the information to a template as a variable/tag. Any info would be appreciated

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• Why does GetSqlDecimal throw when GetDecimal doesn't?

  - by I. J. Kennedy

  I have a database table that has a column of type money, allowing nulls. Using a SqlDataReader named reader, I can do decimal d = reader.GetDecimal(1); which works, unless of course we're reading a null. If I try using SqlDecimal instead--and I thought the whole point of the SqlTypes was to deal with nulls--then I get an invalid cast, whether or not the value is null. SqlDecimal s = reader.GetSqlDecimal(1); // throws an invalid cast exception What am I doing wrong? Do I really have to write a conditional statement to shepherd the value from the database to a SqlDecimal variable?

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• UIView drawRect; class variables out of scope

  - by Toby Wilson

  Short & sweet version of my last question in light of new information. I have a UIVIew with an init and a drawrect method (and another thread and a bunch of other stuff, but I'll keep it short & sweet). All of the class variables that I alloc and init in the -(id)init method are out of scope/nil/0x0 in the drawRect method, and I am unable to access them. For example; In the interface: NSObject* fred; In the implementation: -(id)init { if(self == [super init]) { fred = [[NSObject alloc] init]; } return self; } -(void)drawRect:(CGRect)rect { NSLog(@"Fred is retained %i times",[fred retainCount]); //FAIL NSLog(@"But his variable is actually just pointing at uninitialised 0x0, so you're not reading this in the debugger because the application has crashed before it got here." } Should add that init IS being called before drawRect also. Anyone have any ideas?

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• How do I stub a view in rspec-2

  - by Trey Bean

  I'm in the process of upgrading an app to Rails 3/Rspec 2. I see that stubbing a view helper method has changed in Rspec 2. It looks like instead of doing template.stub!, we're now supposed to do view.stub!, but I can't seem to get this to work on beta 10. I get an "undefined local variable or method `view' for # < RSpec::Core::ExampleGroup::Nested_1::Nested_1::Nested_1:0x106785fd0" error. I see that in this commit David removed the view method, but I can't figure out what it was replaced with. Something in ActionView::TestCase::Behavior? I'm on rails 3.0.0.beta3. Any idea what I'm missing?

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• 503 (Server Unavailable) WebException when loading local XHTML file in Visual C# 2008

  - by kcoppock

  Hello! So I'm currently working on an ePub reader application, and I've been reading through a bunch of regular XML files just fine with System.Xml and XmlDocument: XmlDocument xmldoc = new XmlDocument(); xmldoc.Load(Path.Combine(Directory.GetCurrentDirectory(), "META-INF/container.xml")); XmlNodeList xnl = xmldoc.GetElementsByTagName("rootfile"); However, now I'm trying to open the XHTML files that contain the actual book text, and they're XHTML files. Now I don't really know the difference between the two, but I'm getting the following error with this code (in the same document, using the same XmlDocument and XmlNodeList variable) xmldoc.Load(Path.Combine(Directory.GetCurrentDirectory(), "OEBPS/part1.xhtml")); "WebException was unhandled: The remote server returned an error: (503) Server Unavailable" It's a local document, so I'm not understanding why it's giving this error? Any help would be greatly appreciated. :) I've got the full source code here if it helps: http://drop.io/epubtest (I know the ePubConstructor.ParseDocument() method is horribly messy, I'm just trying to get it working at the moment before I split it into classes)

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• How do I translate this Matlab bsxfun call to R?

  - by claytontstanley

  I would also (fingers crossed) like the solution to work with R Sparse Matrices in the Matrix package. >> A = [1,2,3,4,5] A = 1 2 3 4 5 >> B = [1;2;3;4;5] B = 1 2 3 4 5 >> bsxfun(@times, A, B) ans = 1 2 3 4 5 2 4 6 8 10 3 6 9 12 15 4 8 12 16 20 5 10 15 20 25 >> EDIT: I would like to do a matrix multiplication of these sparse vectors, and return a sparse array: > class(NRowSums) [1] "dsparseVector" attr(,"package") [1] "Matrix" > class(NColSums) [1] "dsparseVector" attr(,"package") [1] "Matrix" > NRowSums * NColSums (I think) w/o using a non-sparse variable to temporarily store data.

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• Remove characters after specific character in string, then remove substring?

  - by sah302

  I feel kind of dumb posting this when this seems kind of simple and there are tons of questions on strings/characters/regex, but I couldn't find quite what I needed (except in another language: http://stackoverflow.com/questions/2176544/remove-all-text-after-certain-point). I've got the following code: [Test] public void stringManipulation() { String filename = "testpage.aspx"; String currentFullUrl = "http://localhost:2000/somefolder/myrep/test.aspx?q=qvalue"; String fullUrlWithoutQueryString = currentFullUrl.Replace("?.*", ""); String urlWithoutPageName = fullUrlWithoutQueryString.Remove(fullUrlWithoutQueryString.Length - filename.Length); String expected = "http://localhost:2000/somefolder/myrep/"; String actual = urlWithoutPageName; Assert.AreEqual(expected, actual); } I tried the solution in the question above (hoping the syntax would be the same!) but nope. I want to first remove the queryString which could be any variable length, then remove the page name, which again could be any length. How can I get the remove the query string from the full URL such that this test passes?

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• Binding AutoCompleteBox inside DataTemplate

  - by Thiago

  I have the following AutoCompleteBox defined inside DataTemplate: <Window.Resources> <DataTemplate x:key="PaneTitleTemplate"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition /> <ColumnDefinition /> </Grid.ColumnDefinition> <ContentPresenter Content="{Binding}" /> <toolkit:AutoCompleteBox x:Name="InsertBox" ItemsSource="{???}" /> </Grid> </DataTemplate> </Window.Resources> ... <radRock:RadPane x:Name="pane1" TitleTemplate="{StaticResource PaneTitleTemplate}"/> Now I'd like to fill it with a list of strings, but I don't know which Binding should I use. The list of strings is an instance variable from the Window. What should I do?

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• .net 4.0 with Code Access Security NetFx40_LegacySecurityPolicy won't work

  - by user210903

  Hi- I'm trying to use an external library DevExpress.XtraTreeList.v8.1.dll in my vsto office addin built using VS2010 beta 2. I am getting the following compile time error: DevExpress.Utils.AppareanceObject threw an exception -- System.NotSupportedException. The error message goes on to say that for compatibility reasons I can use the NetFx40_LegacySecurityPolicy switch. I've tried putting this config variable in all of the following locations: 1) my applications config file. 2) C:\Windows\Microsoft.NET\Framework\v4.0.21006\msbuild.exe.config 3) C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\dev.exe.config None of these have resolved the problem. Here were the references I've used. re-enable cas msdn.microsoft.com/en-us/library/ee191568(VS.100).aspx How do I get rid of this error so I can build the application in vs 2010?

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• Psexec , cmd and batch file

  - by user311130

  Hello. I have a batch file named a.bat on a winserver2008 Desktop. That batch file only write the SessionID (from environment variable) to a local eventlog. I want to execute it remotely using cmd (otherwise the SessionName doesn't appear). so I have tried c:\PsTools\psexec.exe \\<Server> -u test2 -p <Password> -i 2 cmd "c:\Users\test-2\Desktop\a" or c:\PsTools\psexec.exe \\<server> -u test2 -p <Password> -i 2 "cmd \"c:\Users\test-2\Desktop\a\"";exit all of these just open a terminal on the remote machine but don't execute the batch. Any ides? Best Regards,

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• New preg-repleace for youtube

  - by marc

  Welcome, I notice that Youtube make some changes into their website code. Anyone have idea how make it working today ? That's my script (don't work anymore) preg_match('/"video_id": "(.*?)"/', $page, $match); $var_id = $match[1]; preg_match('/"t": "(.*?)"/', $page, $match); $var_t = $match[1]; Look at source of example Youtube video page: http://www.youtube.com/watch?v=w_J27GxPNM0 (yes i like that song very much) Now the t variable can be found under <script> (function() { var isIE = /*@cc_on!@*/false; I dont paste full because it's very long. Regards

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• Could not load file or assembly

  - by sldevelop

  Hi guys, I'm tring to create a generic collection of dynamic type at runtime of Silverlight application. My code: Type listType = Type.GetType("System.Collections.ObjectModel.ObservableCollection`1[[" + type.AssemblyQualifiedName + "]], System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e", true); type - is variable of Type type. That Type is creating at runtime. At that code line I've got error: Could not load file or assembly ', Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. How can I resolve that error?

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• Java Audit table logging, MySQL equivalent of CONTEXT_INFO.

  - by Julia

  Hi, I am looking for the MySQL equivalent of CONTEXT_INFO that is present in SQL Server. Or any other session variable like thing using which I can pass the username to the trigger. I am currently working on logging table data for audit. I need to pass the username of the logged in user to the delete trigger. Any ideas? We are deleting the rows from the table in a few cases and marking them as deleted in others. Any alternate solutions are welcome. I thought of using AOP but it could prove problematic when deleting a cascade. I want to look into Hibernate Interceptors, not sure at this point if that works. If I can find the MySQL equivalent of CONTEXT_INFO, my job is done and elegant as well. Thanks, Julia.

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• Regex for circular replacement

  - by polygenelubricants

  How would you use regex to write functions to do the following: Replace lowercase 'a' with uppercase and vice versa Where words are separated by whitespaces and > and < are special markers, replace >word with word< and vice versa Replace postincrement (i++;) with preincrement (++i;) and vice versa. Variable names are [a-z]+. Input is just a bunch of these statements. Bonus: also do decrement. Also interested in solutions in other flavors. Note: this is NOT a homework question. See also my previous explorations of regex: Regex split into overlapping strings (Alan Moore's answer is especially instructive) Can you use zero-width matching regex in String split? (my solution exploits a known Java regex bug with regards to non-obvious length lookbehind!)

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• how to use Foreign key in L2E or EF?

  - by 5YrsLaterDBA

  I have a User table which has a PrivilegeId foreign key points to a Privilege table and is the primary key there. In Entity Framework, the VS will not generate a PrivilegeId variable under Users for you. It will generate a Privilege property and PrivilegeReference property for you instead. When I load a User, the Privilege property is null by default. That means EF does not load refered entity for you automatically. I think I may did something wrong? I cannot load Privilege separatedly because I have no info about the Privilege at that time. I guess EF should load the refered entities for me but I missed something. anybody can help me?

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• Java Classpath Problems in Ubuntu

  - by Travis

  First off I'm running Ubuntu 9.10 I've edited the /etc/environment file to look like this: PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" JAVA_HOME="/usr/lib/jvm/java-6-sun-1.6.0.20" CLASSPATH="/home/travis/freetts/lib/freetts.jar:/home/travis/freetts/lib/jsapi.jar:." I then run "source /etc/environment" to make sure the changes are included. Then I try compiling my simple test program using this: javac Test.java It throws out a few errors, but when I compile like this: javac -cp /home/travis/freetts/lib/freetts.jar:/home/travis/freetts/lib/jsapi.jar:. Test.java It works just fine, this leads me to believe that for some reason javac isn't seeing the CLASSPATH environment variable? I can echo it and everything in the terminal: echo $CLASSPATH gives me what I put in. Any help on this would be greatly appreciated.

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• pass value from embedded function into conditional of page the embedded function is included on

  - by Brad

  I have a page that includes/embeds a file that contains a number of functions. One of the functions has a variable I want to pass back onto the page that the file is embedded on. <?php include('functions.php'); userInGroup(); if($user_in_group) { print 'user is in group'; } else { print 'user is not in group'; } ?> function within functions.php <?php function userInGroup() { foreach($group_access as $i => $group) { if($group_session == $group) { $user_in_group = TRUE; break; } else { $user_in_group == FALSE; } } }?> I am unsure as to how I can pass the value from the function userInGroup back to the page it runs the conditional if($user_in_group) on Any help is appreciated.

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• NoSuchPortException using RXTX Java library on Windows?

  - by Steve

  I have followed the instructions to setup rxtx on windows from http://www.jcontrol.org/download/readme_rxtx_en.html. What I did exactly was copy rxtxSerial.dll to "C:\Program Files\Java\jdk1.6.0_07\jre\bin" and copied RXTXcomm.jar to "C:\Program Files\Java\jdk1.6.0_07\jre\lib\ext" (my JAVA_HOME variable is set to C:\Program Files\Java\jdk1.6.0_07\jre) I also added RXTXcomm.jar to my eclipse project. But when I run it, it still says "NoSuchPortException" Devel Library ========================================= Native lib Version = RXTX-2.0-7pre1 Java lib Version = RXTX-2.0-7pre1 java.lang.ClassCastException: gnu.io.RXTXCommDriver cannot be cast to gnu.io.CommDriver thrown while loading gnu.io.RXTXCommDriver gnu.io.NoSuchPortException at gnu.io.CommPortIdentifier.getPortIdentifier(CommPortIdentifier.java:218) at TwoWaySerialComm.connect(TwoWaySerialComm.java:20) at TwoWaySerialComm.main(TwoWaySerialComm.java:107) In my java file, I tell it: try { (new TwoWaySerialComm()).connect("COM4"); } and I've also tried the Java Comm API. Both cannot recognize my serial port but I am sure I followed the instruction correctly. There files are there. Does anybody have any idea what it could be?

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• How can I add GET variables to the end of the current page url using a form with php?

  - by zeckdude

  I have some database information that is being shown on a page. I am using a pagination class that uses the $_GET['page'] variable in the url. When you click on a different pagination anchor tag, it changes $_GET['page'] to a new number in the url and shows the corresponding results. I have sort and search features which uses the $_GET['searchby'] and $_GET['search_input'] variables. The user enters their search or sort criteria on a form that is using GET. The variables are then put into the url allowing for the correct results to be shown. The problem I am having is that whenever I click on a pagination link, it adds that to end of the url and erases the search or sort GET variables. The same thing happens when I submit the search/sort form. How can I add GET variables to the end of the current page url using the anchor tag and search/sort form?

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• What parts of .NET require administrative priviliges to be executed?

  - by Ruben Steins

  Which parts of the framework require a user to be more than a Standard User? The reason I'm asking is because I'm trying to compile a list of possible issues with our existing applications when migrating to Windows 7. Now, I can think of a few things myself: Writing to Eventlog Writing to Registry Keys outside of Current_User scope Getting an Environment variable etc... I really would like a more complete list and so far I've not come across a decent resource in which all this stuff is listed. Note that I'm not looking for ways of elevating the priviliges for the exsiting apps (which can be done by using a manifes), I'm simply idenitifying actions in code that might cause issues.

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