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• Designing a data model in VS2010 and generating ORM code, application

  - by Kay Zed

  Simply put: I have a database design in my head and I now want to use Visual Studio 2010 to create a WPF application. Key is to use the VS2010 tools to take much as possible manual work out of my hands. -The database engine is SQLite -ORM probably through DBLINQ -Use of LINQ -The application can create new, empty database instances -Easily maintainable (changes in data model possible) Q- How do I start designing the database model (visually) in Visual Studio 2010? Should this be an xsd? Do I do this in a separate project? Q- Next, how can I make the most use of VS2010 code generation tools to generate a business layer? Q- I suppose the business layer will be added as a Data Source (in another project?) and from there it's a rather generic data binding solution? I tried finding clear examples of this but it's a jungle out there, the hunt for a solution is NOT converging to one clear method.... :_(

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• Sending persisted JDO instances over GWT-RPC

  - by Ben Daniel

  I've just started learning Google Web Toolkit and finished writing the Stock Watcher tutorial app. Is my thinking correct that if one wants to persist a business object (like a Stock) using JDO and send it back and forth to/from the client over RPC then one has to create two separate classes for that object: One with the JDO annotations for persisting it on the server and another which is serialisable and used over RPC? I notice the Stock Watcher has separate classes and I can theorise why: Otherwise the gwt compiler would try to generate javascript for everything the persisted class referenced like JDO and com.google.blah.users.User, etc Also there may be logic on the server-side class which doesn't apply to the client and vice-versa. I just want to make sure I'm understanding this correctly. I don't want to have to create two versions of all my business object classes which I want to use over RPC if I don't have to.

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• Where to place ClientAccessPolicy.xml for Local WCF Service?

  - by cam

  I'm trying to create a basic WCF Service and Silverlight client. I've followed the following tutorial: http://channel9.msdn.com/shows/Endpoint/Endpoint-Screencasts-Creating-Your-First-WCF-Client/ Since Silverlight 4 was incompatible with the WSHttpBinding, I changed it to BasicHttpBinding. Unfortunately I keep getting this error now: "An error occurred while trying to make a request to URI'**'.This could be due to attempting to access a service in a cross-domain way without a proper cross-domain policy in place, or a policy that is unsuitable for SOAP services. You may need to contact the owner of the service to publish a cross-domain policy file and to ensure it allows SOAP-related HTTP headers to be sent." I placed clientaccesspolicy.xml in the root directory of the WCF project (which is in the same solution as the Silverlight client). This did not solve the problem. What do I need to do?

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• PHP mcrypt usage class?

  - by kavoir.com

  I'm pretty new at this. Tried to make sense of the manual page for mcrypt at PHP.net when I thought a good tutorial would do a better job. So I searched yet without anything substantial. I also tried one of the examples of using mcrypt to perform the encryption and decryption with 2 functions, but it gives a warning of "Size of key is too large for this algorithm". Can anyone please write me a two-way class to do the encryption / decryption using mcrypt so I can make sense of the library? Thanks!

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• Help converting java program to MapReduce job

  - by BigJoe714

  Hello, I would like to convert the following Java program to a MapReduce job. I have read about MapReduce and feel like this would be a good problem to solve using it, but I cannot figure out what to do. This basically loops through a directory of html files and parses them into a CSV file. http://www.joeharrison.com/bucket/2010/3/Main.java.txt http://www.joeharrison.com/bucket/2010/3/StringParser.java.txt Note: I am not trying to get someone else to do my work for me. I am using this as a learning experience. This will not be used for $$$profit$$$. If I have something that I created converted to a MapReduce job I feel it will provide a much easier way to learn then trying to follow an arbitrary tutorial. I posted this on Rentacoder several days ago, because I wanted to pay someone to convert it for me. But no one on rentacoder seems to know mapreudce!

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• Update data programmatically using EntityDataSource

  - by Vinay

  Hello guys, I want to update the data using programmatically in code behind using EntityDataSource. I have done the samething using Update method of LINQ Datasource. sample code snippet int id = Convert.ToInt32(e.CommandArgument); ListDictionary keyValues = new ListDictionary(); ListDictionary newValues = new ListDictionary(); ListDictionary oldValues = new ListDictionary(); keyValues.Add("ReviewID", id); oldValues.Add("IsActive", "IsActive"); newValues.Add("IsActive", "false"); GridDataSource.Update(keyValues,newValues, oldValues); Can I achieve the same thing using EntityDataSource? Thanks, Vinay

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• java httpclient post

  - by Eric V

  Hi, I have a question about how to allow my jsp page to issue a post command to the server, and still have the browser fallow the re direction of the posted page. Here are the code snipets: code that does the post (this is inside a jsp file): HttpClient client = new DefaultHttpClient(); client.getParams().setParameter("SUBMITTED", "submitted"); client.getParams().setParameter("xxxxxxxx", purchaser.getemail()); client.getParams().setParameter("xxxxxxxx", purchaser.getsuject()); HttpPost method = new HttpPost(url+"process.jsp"); client.execute(method); here is a snipet of process.jsp if (person.getStatus() == person.ACTIVE) response.sendRedirect("Account.jsp); else if (person.getStatus() == person.ERROR) response.sendRedirect("Error.jsp); I would like the browser to the fallow/goto the redirect from the process.jsp. Does anyone know a tutorial that would help me or Am I going about this the wrong way. Thanks, eric

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• Errno::EACCES: Permission denied - ./tmp/rspec_guard_result

  - by Evgeniy Gatsalov

  Trying settup rspec-guard-spork for learning app from http://ruby.railstutorial.org/ Using Ruby 2.0, Rails 4.0 on Windows7 ( I know :( ) When starting guard, get: 23:02:51 - ERROR - Guard::RSpec failed to achieve its <run_on_modifications>, exception was: > [#] Errno::EACCES: Permission denied - ./tmp/rspec_guard_result ... All gemfile, guardfile etc are edited according tutorial. Except 1) deleting win32console gem from gemfile because it turned console-out into a crap and raised an error. Permissions for a file is "F"(ull) for all cattegories: D:\WebDevelop\sample_appcacls tmp\rspec_guard_result D:\WebDevelop\sample_app\tmp\rspec_guard_result BUILTIN\Users:(ID)F NT AUTHORITY\Authenticated:(ID)F BUILTIN\Administrators:(ID)F NT AUTHORITY\system:(ID)F What additional info should I provide here?

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• Email Validation from WTForm using Flask

  - by lost9123193

  I'm following a Flask tutorial from http://code.tutsplus.com/tutorials/intro-to-flask-adding-a-contact-page--net-28982 and am currently stuck on the validation step: The old version had the following: from flask.ext.wtf import Form, TextField, TextAreaField, SubmitField, validators, ValidationError class ContactForm(Form): name = TextField("Name", [validators.Required("Please enter your name.")]) email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") Reading the comments I updated it to this: (replaced validators.Required with InputRequired) (same fields) class ContactForm(Form): name = TextField("Name", validators=[InputRequired('Please enter your name.')]) email = EmailField("Email", validators=[InputRequired("Please enter your email address.")]), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") My only issue is I don't know what to do with the validators.Email. The error message I get is: NameError: name 'validators' is not defined I've looked over the documentation, perhaps I didn't delve deep enough but I can't seem to find an example for email validation.

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• MVC with cocoa/objective-c

  - by Leonardo

  Hi all, I have a strong j2ee background, and I am trying to move to objective-c for some desktop/iphone programming. I used many java web frameworks with mvc in mind, spring and struts ecc... so I am used to have servlet or controller which pass attributes to jsp pages, which is the view. In jsp pages with jstl you can call this attribute and render to video. In this way controller and view are (in theory) clearly separated. With xcode, I can easily recognize the controller and the view built with IBuilder. All the tutorial I found, shown the controller which go and change directly labels or text fields. So my two questions: seems to me that there's no separation between the two (controller and view), where I am wrong in that ? is there a way for a controller to pack all objects in a kind of context in a j2ee way and have the view read that context ? thanks Leonardo

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• MVC LOB application

  - by João Passos

  Hi, I'm new to web development and i'm starting with a MVC project. I have a view to create a new Service. In this view, i need to have a button to show a dialog with client names (i also would like to implement filters and paging in this dialog). Once the user selects a client from the dialog, i need to populate some combo boxes in the Service View with info relative to that particular client. How can i accomplish this? If there any demo code or tutorial i can get my hands on to learn this? Thanks in advance for any tip.

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• Python 3.1.1 Class Question

  - by Protean

  I'm a new Python programmer who is having a little trouble using 'self' in classes. For example: class data: def __init__(self): self.table = [] def add(self, file): self.table.append(file) data.add('yes') In this function I want to have table be a variable stored in the class data and use add to modify it. However, when I run this script it gives me the error: Traceback (most recent call last): File "/Projects/Python/sfdfs.py", line 7, in <module> data.add('yes') TypeError: add() takes exactly 2 positional arguments (1 given) I assume that I am trying to call the function the wrong way in this instance, as this syntax is very similar to an example in the python documentation: http://docs.python.org/3.1/tutorial/classes.html

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• How do you handle the fetchxml result data?

  - by Luke Baulch

  I have avoided working with fetchxml as I have been unsure the best way to handle the result data after calling crmService.Fetch(fetchXml). In a couple of situations, I have used an XDocument with LINQ to retrieve the data from this data structure, such as: XDocument resultset = XDocument.Parse(_service.Fetch(fetchXml)); if (resultset.Root == null || !resultset.Root.Elements("result").Any()) { return; } foreach (var displayItem in resultset.Root.Elements("result").Select(item => item.Element(displayAttributeName)).Distinct()) { if (displayItem!= null && displayItem.Value != null) { dropDownList.Items.Add(displayItem.Value); } } What is the best way to handle fetchxml result data, so that it can be easily used. Applications such as passing these records into an ASP.NET datagrid would be quite useful.

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• Interacting with google docs after logging into my google market apps - how

  - by Ali

  Hi guys I have a google apps account set up and even set up a simple hello world application from the available samples on the tutorial however I need to set it so I am able to interact with the google docs account associated with the account which has added my application. To interact with google docs I am aware that a token is requested from google upon authentication and verification of the account however that is in a situation where you code specifically for interacting with google docs - I'm talking about having access to the google docs of the account which has added my application so my application can be used to upload documents to the google docs and make references to them - basically my application is a resource management application and it needs to be able to store references to google docs.

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• Deploying Django at Dreamhost

  - by Imran

  I'm trying to get the Poll tutorial working at my Dreamhost account (I don't have any prior experience of deploying Django). I downloaded the script I found here (http://gabrielfalcao.com/2008/12/02/hosting-and-deploying-django-apps-on-dreamhost/) at my home directory and executed it. Now I have Python 2.5 and Django in ~/.myroot/ and my Django projects directory is ~/projects/ Here's the content of ~/projects/ directory (I copied the polls/ and and templates/polls/ directories myself). projects/ |-- admin_media -> /home/imran2140/.myroot/usr/lib/python2.5/site-packages/django/contrib/admin/media |-- dispatch.fcgi |-- polls | |-- __init__.py | |-- __init__.pyc | |-- admin.py | |-- admin.pyc | |-- models.py | |-- models.pyc | |-- polls.db | |-- urls.py | |-- urls.pyc | |-- views.py | `-- views.pyc |-- script_templates | |-- dispatch.template | `-- htaccess.template `-- templates `-- polls |-- detail.html |-- index.html `-- results.html 5 directories, 17 files Now what should I do to get the Polls app working? Update I finally got a "Hello World" Django app working with Passanger WSGI. It worked fine with both Server's default Python 2.3.5 and my installed Python 2.5.2. Passanger WSGI - Django at Dreamhost Wiki

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• Making a DataSet from another DataSet

  - by M.H

  Hi folks I have a client-server project (small project for companies in C#) and the server has a DataSet with some tables (there is no Database for some reasons so we save the DataSet as an XML file). when the clients connect to the server, the server should send some informations to the client depends on his privileges and some clients must add to or Delete from the DataSet in the server. I am thinking in Making a new small DataSet and sending it to the client (as xml) but I don't know how to generate a new DataSet with specific tables and rows (I tried to use Linq to DataSet but nothing worked). My Questions is how can I do that and is this a good solution to send informations to clients ? can you suggest a better scenario to send data to clients(I mean instead of making a new DataSet).

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• Subreports in Jasper Reports

  - by Karthikeyan

  Hi all, I am using jasper reports - ireports. i need to create a subreport. i have a Master Reports-- which holds the subreport1 and subreport 2. Subreport 1 and 2 will have individual tables in its details band. So, while compiling master report through java class by filling it with custom datasource it has to print a single page with two table.. this is my task !! i need some more guidance to implement this ? i didnt get much tutorial for it to implement. Pls help me. Thanks in advance

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• How to setup a project to use TweetSharp

  - by Stuart Helwig

  I am trying to follow Pete Brown's introductory WPF tutorial which makes use of the TweetSharp libraries to interact with Twitter. I have downloaded what appears to be the latest TweetSharp binaries (and a few others including the ReleaseCandidate) from Codeplex (http://tweetsharp.codeplex.com/). No matter what references I add and no matter what using statements I try, I cannot create a reference to the TwitterService for the FluentTwitter class. I simply get the compiler error - "The type or namespace cannot be found". Now I've noticed that the TweetSharp.dll that Pete references is 518KB but the one contained in each of my different downloads is only 84kb. (I've tried several times - I am getting the full download here). The link from Pete's article to the TweetSharp libraries, no longer works (http://code.google.com/p/tweetsharp/). What basic element am I missing here or what could I be doing wrong?

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• Namespace Orginization and Conventions

  - by Bob Dylan

  So I have a little bit of a problem. I working on a project in C# using The StackOveflow API. You can send it a request like so: http://stackoverflow.com/users/rep/126196/2010-01-01/2010-03-13 And get back something like this JSON response: [{"PostUrl":"1167342", "PostTitle":"Are ref and out in C# the same a pointers in C++?", "Rep":10}, {"PostUrl":"1290595", "PostTitle":"Where can I find a good tutorial on bubbling?", "Rep":10} ... So my problem is that I have some methods like GetJsonResponse() which return the above JSON and SaveTempFile() which saves that JSON response to a temporary file for later use. I not sure if I should create a class for them, or what namespace to put them under. Right now my current namespace hierarchy is like so: StackOverflow.Api.Json. So how should I organize these methods/classes/namespaces?

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• django ignoring admin.py

  - by noam

  I am trying to enable the admin for my app. I managed to get the admin running, but I can't seem to make my models appear on the admin page. I tried following the tutorial (here) which says: (Quote) Just one thing to do: We need to tell the admin that Poll objects have an admin interface. To do this, create a file called admin.py in your polls directory, and edit it to look like this: from polls.models import Poll from django.contrib import admin admin.site.register(Poll) (end quote) I added an admin.py file as instructed, and also added the following lines into urls.py: from django.contrib import admin admin.autodiscover() urlpatterns = patterns('', ... (r'^admin/', include(admin.site.urls)), ) but it appears to have no effect. I even added a print 1 at the first line of admin.py and I see that the printout never happens, So I guess django doesn't know about my admin.py. As said, I can enter the admin site, I just don't see anything other than "groups", "users" and "sites". What step am I missing?

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• Return Selected Phone Address from iPhone Address Book

  - by Ali

  Hey, I found a tutorial online that extends that Apple QuickStart Application which is the basic Address Book Application and another that returns the first phone number regardless of what phone number was clicked. I want to display only the selected phone number in the label. The label is called phoneNumber: - (BOOL)peoplePickerNavigationController: (ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier{ ABMutableMultiValueRef phoneMulti = ABRecordCopyValue(person, kABPersonPhoneProperty); NSMutableArray *phones = [[NSMutableArray alloc] init]; int i; for (i = 0; i < ABMultiValueGetCount(phoneMulti); i++) { NSString *aPhone = [(NSString*)ABMultiValueCopyValueAtIndex(phoneMulti, i)autorelease]; [phones addObject:aPhone]; } NSString *mobileNo = [phones objectAtIndex:0]; self.phoneNumber.text = phones; [self dismissModalViewControllerAnimated:YES]; return NO; } How do I ensure that the label is the one selected by the user and not just the first array entry(or any other array entry i code in) Thanks

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• Webdriver python bindings

  - by Ockonal

  Hello, I can't make python bindings for webdriver workable. Here is tutorial for installing. easy_install webdriver Won't find webdriver package so I have to install it manually from sources. I've downloaded source from trunk, set WEBDRIVER and PYTHONPATH variables and installed webdriver: ~$ cd ~ ~$ svn checkout http://selenium.googlecode.com/svn/trunk/ selenium-read-only ~$ cd selenium-read-only ~# python setup.py install ~$ env |grep PYT ~$> PYTHONPATH=:/home/ockonal/selenium-read-only/../../../firefox/lib-src:/home/ockonal/selenium-read-only/.. ~$ env |grep WEB ~$> WEBDRIVER=/home/ockonal/selenium-read-only Then I downloaded RemoteDriverServer.jar and ran it: java -jar RemoteDriverServer.jar 8888 Now I want to include webdriver module in python script: from selenium.firefox.webdriver import WebDriver ImportError: No module named firefox.webdriver

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• getting firewatir to run on mac osx: jssh problems

  - by z3cko

  I am trying to get firewatir to run on Mac OSX Leopard. I have Firefox 3.6rc2 installed but running the most simple script does not work: require 'rubygems' require 'firewatir' ff=FireWatir::Firefox.new ff.goto("http://mail.yahoo.com") i am getting the following error /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:237:in `set_defaults': Unable to connect to machine : 127.0.0.1 on port 9997. Make sure that JSSh is properly installed and Firefox is running with '-jssh' option (Watir::Exception::UnableToStartJSShException) from /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:131:in `initialize' from ./watir-test.rb:12:in `new' from ./watir-test.rb:12 even when I am trying to start Firefox with the -jssh option, I get an error (although another one) /Applications/Firefox.app/Contents/MacOS/firefox-bin -jssh the error output in that case: /usr/local/lib/ruby/gems/1.8/gems/firewatir-1.6.5/lib/firewatir/firefox.rb:125:in `initialize': Firefox is running without -jssh (RuntimeError) is there any tutorial or hnt to get firewatir actually running on Mac OSX?

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• What does seem target in ANT

  - by Johannes

  Hello I am completly new to eclipse, liferay and ANT. I tried to set up a development environment and just finished the ext-anvironment (I also executed ant clean start). Now I've to execute "ant build-ext", following this tutorial: http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/Setting%20up%20the%20Extension%20Environment D:\_liferay\ext>ant build-ext Buildfile: D:\_liferay\ext\build.xml But I receive the Message: BUILD FAILED Target "build-ext" does not exist in the project "ext". Can somebody tell me what I did wrong? Thanks in Advance Johannes

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• libvirt and VirtualBox / Getting Started

  - by Marc Lucas

  I'm trying to get started on libvirt with VirtualBox as a virtualization solution. I installed everything and VirtualBox itself is running when using their VBoxHeadless command. However, libvirt fails to connect to VirtualBox: # virsh -c vbox:///session libvir: error : could not connect to vbox:///session error: failed to connect to the hypervisor I could not find any hints in the libvirt documentation that point to whether I have to make any domain specific configuration before using virsh. Does anyone have a hint? Or even better, maybe a tutorial that works through the way of using libvirt, virsh or it's APIs (my later goal) from the ground up.

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