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  • is unicode( codecs.BOM_UTF8, "utf8" ) necessary in Python 2.7/3?

    - by Brian M. Hunt
    In a code review I came across the following code that contains the following: # Python bug that renders the unicode identifier (0xEF 0xBB 0xBF) # as a character. # If untreated, it can prevent the page from validating or rendering # properly. bom = unicode( codecs.BOM_UTF8, "utf8" ) r = r.replace(bom, '') This is in a function that passes a string to Response object (Django or Flask). Is this still a bug that needs this fix in Python 2.7 or 3? Something tells me it isn't, but I thought I'd ask because I don't know this problem very well. Thanks for reading.

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  • mvc bind/post boolean to radiobutton

    - by Xuan Vu
    Hi all, I have a column in my Model with a NULLABLE boolean value. Now on my View (for editing), I would like to bind that to two radiobuttons: Yes & No. If the value is null, then just have the two radiobutton un-checked. How would I go to do that? Thanks.

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  • T4 template for Validation in MVC

    - by GibboK
    I'm using ASp.Net MVC and EF 4.3.1. Using POCO t4 template I'm able to create the POCO classes for my model but not validation. At the moment I'm using Partial Classes with MetaData for adding the annotation (leaving intact the POCO auto generated). My question: Could you point me out a tutorial, or show me an example of code or a link to a T4 template the also include automatic VALIDATION for my POCO? THanks

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  • PropertyChanged Event of ObservableCollection

    - by developer
    Hi All, I have a observable collection of viewmodel objects. How can I subscribe to the Property Changed event of each view model in my collection as they are created and track which ones have been changed, so that I can updated them to my database. List<DomainObject> objectsToSave = new List<DomainObject>(); foreach (Test val in dirtyObjs) { objectsToSave.AddRange(val.GetObjectsToSave()); } //DB changes bool saveSucceeded = DataServices.SaveMultiple(objectsToSave);

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  • Entity framework 4 add to many-to-many

    - by mehanik
    I have model whith 3 tabels and one is link table with additional field: Groups Id Name Users Id Name Roles Id Name LinkTable Id GroupId UserId RoleId The quuestion is how to add 3 related entities: Code bellow doesn't work. using (var db = new dbEntities()) { db.Groups.AddObject(Group.CreateGroup(1, "TestGroup")); db.Users.AddObject(User.CreateUser(1, "AdminUser")); db.Roles.AddObject(Role.CreateRole(1, "Admin")); db.UserGroupRoles.AddObject(UserGroupRole.CreateUserGroupRole(1, 1, 1, 1)); db.SaveChanges(); }

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  • Ruby xml rpc error handling

    - by stel
    I have a model class Car @@RPCServer = XMLRPC::Client.new("localhost", "/", 8080) def self.count @@RPCServer.call("cars.count") end end If server is not running on localhost:8080 I've got a Errno::ECONNREFUSED error. I want to display an error message to user, how can a handle this error?

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  • Explain Entity Framework 4's connection strings

    - by metanaito
    I created an Entity Framework file. My database is called MyDB. My Entity Framework file is MyDB.edmx and I used an existing connection string (MyDBConnectionString) to generate the edmx model. It created two more connection strings: MyDBEntities MyDBContainer What are these for? They look exactly the same and both have the information from my old connection string. Do I still need my old connection string?

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  • Optimization Techniques in Python

    - by fear-matrix
    Recently i have developed a billing application for my company with Python/Django. For few months everything was fine but now i am observing that the performance is dropping because of more and more users using that applications. Now the problem is that the application is now very critical for the finance team. Now the finance team are after my life for sorting out the performance issue. I have no other option but to find a way to increase the performance of the billing application. So do you guys know any performance optimization techniques in python that will really help me with the scalability issue

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  • SMS + Web app: Providers of SMS "Long codes" for use by U.S. carrier subscribers within U.S.?

    - by fourh
    Q.: How to get a cellular phone SMS "Long code" for use by U.S. carrier subscribers within U.S.? Background: I'm building a web app that receives queries from/sends answers to cell phones. The app design (and business model) expects to communicate with cell devices via SMS, addressing the web app via an SMS "Long code" (VMN or MSISDN). The mobile phone subscribers will be sending/receiving within the U.S. and using U.S. carriers. Long codes are not available within the U.S. cellular services.

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  • UML tool similar to USE

    - by llazzaro
    Hello, To "simulate" instances from class diagrams I am using USE But I find very frustating to create instances. I am looking for similar tools like this one. I really like USE, but GUI is painfull. I think, that USE is pretty cool to learn how the model "works". Do you know similar tools like this one?

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  • How to listen to that property?

    - by mystify
    @constant kAudioSessionProperty_AudioInputAvailable A UInt32 with a value other than zero when audio input is available. Use this property, rather than the device model, to determine if audio input is available. A listener will notify you when audio input becomes available. For instance, when a headset is attached to the second generation iPod Touch, audio input becomes available via the wired microphone. So, if I wanted to get notified about kAudioSessionProperty_AudioInputAvailable, how would I do that?

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  • Codeigniter: Retrieving data on button click with Ajax

    - by OllyTenerife
    I have a simple webpage which generates a random quote from my database upon refreshing the page. I wish to implement some AJAX and JQuery in order to generate quotes via the button rather than having to refresh the page. I have done some research but I am not sure how to implement this in Codeigniter. My current code is below... Page controller: public function index() { $this->load->model('quote_model', '', TRUE); $data['quotes'] = $this->quote_model->getRandom(); $this->load->view('home', $data); } The view: <?php include ('layout/header.php'); ?> <div class="container-fluid"> <div class="row"> <div class="col-md-4 quote-holder"> <img src="application/assets/alan1.jpg" alt="..." class="img-circle img-responsive"> <br> <blockquote class="text-center"> <p><?php echo $quotes[0]['quote']; ?></p> <footer class="text-center"><?php echo $quotes[0]['character_name']; ?> in <cite title="Source Title"><?php echo $quotes[0]['series_name']; ?></cite></footer> </blockquote> <button type="button" class="btn btn-default center-block">Generate quote</button> </div> </div> <?php include ('layout/footer.php'); ?> Here is the function in the model I am retrieving the data from: function getRandom() { $query = $this->db->query(" SELECT * FROM quotes, characters, series WHERE quotes.series_id = series.series_id AND quotes.character_id = characters.character_id ORDER BY rand() LIMIT 1 "); return $query->result_array(); } Should I simply be using something like this? $("button").click(function(){ $.get( "Page/index", function( data ) { //output data to page element... } });

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  • Resources for Prformance testing

    - by munna
    Our small concern is entrusted with creating an Application on ASP.NET with client-server model. As we are almost done with the development we are creating a small team for Performance test. I have googled in the net about the topic but without much help. If anyone of you can share 'How, What and Why' about perf test, it would be great help.

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  • Best reporting tool for .NET

    - by Marco Parenzan
    I have convinced a company to change Crystal Reports. But then? What to use? Telerik? I want: designer bind an object model, not a denormalized view execute from batch, generate report in batch export to word or many other formats reporting site Uh, my backend is Progress Software, so ODBC driver. Or NHibernate objects...

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  • How to expose a web appication via API ?

    - by iamgopal
    Hi , we have create a web application on top of google app engine and python. which is almost about to complete it web front phase. I would also like to make it available almost all part of it to external applications. { via , xml , json , http , as many as possible. } . what's the best way to do it ? any library either for python or django available out ther ? Thanks.

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  • QuickGraph - How can I associate an Edge with a Class? (i.e. like you can with a Vertex)

    - by Greg
    Hi, Q1 - How can I associate an Edge with a Class? (i.e. like you can with a Vertex) In my case there are various types of edges I want to be able to model. So my real question I guess is how can I associate some level of data with Edges (e.g. edge type). The graph I was looking at using was: http://quickgraph.codeplex.com/wikipage?title=BidirectionalGraph&referringTitle=Documentation thanks

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  • where store event handler method in WPF - MVVM

    - by netmajor
    Hey, Where should I store event methods for button Click event ?Normally it's store in code behind of wpf page, <Button Name="myButton" Click="myButton_Click">Click Me</Button> but in MVVM it should be store in other view-model class and bind to click property of button like that?? <Button Name="myButton" Click="{Binding StaticResouces myButton_Click}">Click Me</Button>

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  • how works applications which blocks web sites?

    - by noisy
    I know only one low-level way of blocking websites - hosts file. However, it is obvious that main stream programs has some other way of achieving this. I have an idea for new model of this kind of program, but without possibility of blocking sites it is useless :(

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  • What's the best approach for readonly property

    - by Patrick Parent
    Hi, I'm using a model UserRepository-User The Repository is used to Save and Load the User. I want to be able to set the ID in the Repository, but I don't want it to be access by UI. The User and Repository are found in a Core project, and the UI in a Web. Is there a way to do this, like a modifier for the property, or should I put the ID in the User contructor ? Thanks

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