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  • ASP.NET MVC DropDownList SelectedValue works on Edit action, but not Create action

    - by davekaro
    I have the following code in my controller (for Edit and Create): model.Templates = new SelectList(PageManagementService.PageTemplateFetchList(), "PageId", "Title", 213); the "213" is an Id for one of the pages - just using it for testing. And this is in my view (for Edit and Create): <%= this.Html.DropDownListFor(model => model.Page.TemplateId, this.Model.Templates)%> <%= this.Model.Templates.SelectedValue %> When I go to the Create form, I see the dropdown list, but the tag with value="213" is not selected. I even output the SelectedValue to make sure it's 213 - and I see 213. When I go to the Edit form, I see the dropdown list, and the tag with value="213" is selected. On the Create form, none of the tags have a "selected" attribute. On the Edit form, the tag with value="213" has the "selected" attribute. Am I missing something? What could be causing this? Anyone see this behavior before?

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  • Setting html attribute that is reserved keyword in Html.CheckBoxFor in ASP.NET MVC

    - by dormisher
    Hi, I am using the HtmlHelper to create a checkbox in my view like so: <%= Html.CheckBoxFor(model = model.SeatOnly, new { checked = "checked" })% However, an error is being thrown as checked is a reserved keyword. I have found a couple of people saying that you must use the 'reserved word prefix' and simply put an uderscore in front of the attribute like so: <%= Html.CheckBoxFor(model = model.SeatOnly, new { _checked = "checked" })% This does not generate an error but in the generated html the attribute is actually '_checked' which means it doesn't work (if I use firebug and remove the underscore the attribute then takes effect). Does anyone know a way around this while still using CheckBoxFor? Thanks

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  • Language-agnostic term for typed things that need memory

    - by FredOverflow
    Is there an accepted general term that subsumes the concepts of variables, class instances and arrays? Basically "any typed thing that needs memory". In C++, such a thing is called an object, but I'm looking for a more language-agnostic term. § 1.8 The C++ object model 1 The constructs in a C++ program create, destroy, refer to, access, and manipulate objects. An object is a region of storage. [...] An object can have a name (Clause 3). An object has a storage duration (3.7) which influences its lifetime (3.8). An object has a type (3.9).

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  • How to avoid open-redirect vulnerability and safely redirect on successful login (HINT: ASP.NET MVC

    - by Brad B.
    Normally, when a site requires that you are logged in before you can access a certain page, you are taken to the login screen and after successfully authenticating yourself, you are redirected back to the originally requested page. This is great for usability - but without careful scrutiny, this feature can easily become an open redirect vulnerability. Sadly, for an example of this vulnerability, look no further than the default LogOn action provided by ASP.NET MVC 2: [HttpPost] public ActionResult LogOn(LogOnModel model, string returnUrl) { if (ModelState.IsValid) { if (MembershipService.ValidateUser(model.UserName, model.Password)) { FormsService.SignIn(model.UserName, model.RememberMe); if (!String.IsNullOrEmpty(returnUrl)) { return Redirect(returnUrl); // open redirect vulnerability HERE } else { return RedirectToAction("Index", "Home"); } } else { ModelState.AddModelError("", "User name or password incorrect..."); } } return View(model); } If a user is successfully authenticated, they are redirected to "returnUrl" (if it was provided via the login form submission). Here is a simple example attack (one of many, actually) that exploits this vulnerability: Attacker, pretending to be victim's bank, sends an email to victim containing a link, like this: http://www.mybank.com/logon?returnUrl=http://www.badsite.com Having been taught to verify the ENTIRE domain name (e.g., google.com = GOOD, google.com.as31x.example.com = BAD), the victim knows the link is OK - there isn't any tricky sub-domain phishing going on. The victim clicks the link, sees their actual familiar banking website and is asked to logon Victim logs on and is subsequently redirected to http://www.badsite.com which is made to look exactly like victim's bank's website, so victim doesn't know he is now on a different site. http://www.badsite.com says something like "We need to update our records - please type in some extremely personal information below: [ssn], [address], [phone number], etc." Victim, still thinking he is on his banking website, falls for the ploy and provides attacker with the information Any ideas on how to maintain this redirect-on-successful-login functionality yet avoid the open-redirect vulnerability? I'm leaning toward the option of splitting the "returnUrl" parameter into controller/action parts and use "RedirectToRouteResult" instead of simply "Redirect". Does this approach open any new vulnerabilities? Side note: I know this open-redirect may not seem to be a big deal compared to the likes of XSS and CSRF, but us developers are the only thing protecting our customers from the bad guys - anything we can do to make the bad guys' job harder is a win in my book. Thanks, Brad

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  • Word Spell Check pops up hidden and "freezes" my App

    - by Refracted Paladin
    I am using Word's Spell Check in my in house WinForm app. My clients are all XP machines with Office 2007 and randomly the spell check suggestion box pops up behind the App and makes everything "appear" frozen as you cannot get at it. Suggestions? What do other people do to work around this or stop it altogether? Thanks Below is my code, for reference, though I am doubtful that this has anything to do with my code but I'll take anything. public class SpellCheckers { public string CheckSpelling(string text) { Word.Application app = new Word.Application(); object nullobj = Missing.Value; object template = Missing.Value; object newTemplate = Missing.Value; object documentType = Missing.Value; object visible = false; object optional = Missing.Value; object savechanges = false; app.ShowMe(); Word._Document doc = app.Documents.Add(ref template, ref newTemplate, ref documentType, ref visible); doc.Words.First.InsertBefore(text); Word.ProofreadingErrors errors = doc.SpellingErrors; var ecount = errors.Count; doc.CheckSpelling(ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional, ref optional); object first = 0; object last = doc.Characters.Count - 1; var results = doc.Range(ref first, ref last).Text; doc.Close(ref savechanges, ref nullobj, ref nullobj); app.Quit(ref savechanges, ref nullobj, ref nullobj); Marshal.ReleaseComObject(doc); Marshal.ReleaseComObject(app); Marshal.ReleaseComObject(errors); return results; } } And I call it from my WinForm app like so -- public static void SpellCheckControl(Control control) { if (IsWord2007Available()) { if (control.HasChildren) { foreach (Control ctrl in control.Controls) { SpellCheckControl(ctrl); } } if (IsValidSpellCheckControl(control)) { if (control.Text != String.Empty) { control.BackColor = Color.FromArgb(180, 215, 195); control.Text = Spelling.CheckSpelling(control.Text); control.Text = control.Text.Replace("\r", "\r\n"); control.ResetBackColor(); } } } }

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  • Validation of WPF User Input using MVVM and Entity Framework 4.0

    - by Emad
    I am building a WPF 4.0 Application using MVVM. The Model is generated using Entity Framework 4.0. I am using Data binding on the WPF to bind the user input to model properties. What is the easiest way to validate user input ? I prefer an approach where I can set the validation rules on the Model rather than on the WPF itself. How can this be done? Any samples are appreciated.

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  • AS3 OOP MVC with PHP

    - by Pepe Sanchez
    Im new to ActionScript and Flex 3... im trying to develop an MVC 100% OOP application with Flex 3 using MXML,AS3 and PHP. M (PHP) V (MXML) C (AS3) The 3 layers i choose for my development. I have 10 AS3 classes that are object related between them and some inherit or implement interfaces. The only problem here is how to interact 100% OOP with my model. In this case my model has to be a PHP Class that needs to be called from AS3 (the controller). For example the AS3 class : Patient have a method called Save: public function Save(data:Array) : void { /* PHP call - model layer */ } I want to create an instance of my PHP Patient Model class that connects to the DB and insert the data array into it. What should i use ? how can i also return a variable to AS3 ? What happen to as3 if there is a cached Exception in PHP ? Thanks in advanced :)

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  • How to add manytomany field to flatpage admin

    - by valya
    Hello! I have a site with Flatpages, and now I need to be able to add galleries (Gallery model) to the page. This is going to be ManyToManyField, so there is no need to change the flatpages table. But I still can't define ManyToManyField in proxy class. I can define ManyToManyField in Gallery model, but it isn't comfortable for the client. How can I change FlatPage Admin to add a ManyToManyField from Galleries model?

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  • Binding to a dictionary in Silverlight with INotifyPropertyChanged

    - by rip
    In silverlight, I can not get INotifyPropertyChanged to work like I want it to when binding to a dictionary. In the example below, the page binds to the dictionary okay but when I change the content of one of the textboxes the CustomProperties property setter is not called. The CustomProperties property setter is only called when CustomProperties is set and not when the values within it are set. I am trying to do some validation on the dictionary values and so am looking to run some code when each value within the dictionary is changed. Is there anything I can do here? C# public partial class MainPage : UserControl { public MainPage() { InitializeComponent(); MyEntity ent = new MyEntity(); ent.CustomProperties.Add("Title", "Mr"); ent.CustomProperties.Add("FirstName", "John"); ent.CustomProperties.Add("Name", "Smith"); this.DataContext = ent; } } public class MyEntity : INotifyPropertyChanged { public event PropertyChangedEventHandler System.ComponentModel.INotifyPropertyChanged.PropertyChanged; public delegate void PropertyChangedEventHandler(object sender, System.ComponentModel.PropertyChangedEventArgs e); private Dictionary<string, object> _customProps; public Dictionary<string, object> CustomProperties { get { if (_customProps == null) { _customProps = new Dictionary<string, object>(); } return _customProps; } set { _customProps = value; if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs("CustomProperties")); } } } } VB Partial Public Class MainPage Inherits UserControl Public Sub New() InitializeComponent() Dim ent As New MyEntity ent.CustomProperties.Add("Title", "Mr") ent.CustomProperties.Add("FirstName", "John") ent.CustomProperties.Add("Name", "Smith") Me.DataContext = ent End Sub End Class Public Class MyEntity Implements INotifyPropertyChanged Public Event PropertyChanged(ByVal sender As Object, ByVal e As System.ComponentModel.PropertyChangedEventArgs) Implements System.ComponentModel.INotifyPropertyChanged.PropertyChanged Private _customProps As Dictionary(Of String, Object) Public Property CustomProperties As Dictionary(Of String, Object) Get If _customProps Is Nothing Then _customProps = New Dictionary(Of String, Object) End If Return _customProps End Get Set(ByVal value As Dictionary(Of String, Object)) _customProps = value RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("CustomProperties")) End Set End Property End Class Xaml <TextBox Height="23" Name="TextBox1" Text="{Binding Path=CustomProperties[Title], Mode=TwoWay}" /> <TextBox Height="23" Name="TextBox2" Text="{Binding Path=CustomProperties[FirstName], Mode=TwoWay}" /> <TextBox Height="23" Name="TextBox3" Text="{Binding Path=CustomProperties[Name], Mode=TwoWay}" />

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  • Failed Castle ActiveRecord TransactionScope causes future queries to be invalid

    - by mbp
    I am trying to solve an issue when using a Castle ActiveRecord TransactionScope which is rolled back. After the rollback, I am unable to query the Dog table. The "Dog.FindFirst()" line fails with "Could not perform SlicedFindAll for Dog", because it cannot insert dogMissingName. using (new SessionScope()) { try { var trans = new TransactionScope(TransactionMode.New, OnDispose.Commit); try { var dog = new Dog { Name = "Snowy" }; dog.Save(); var dogMissingName = new Dog(); dogMissingName.Save(); } catch (Exception) { trans.VoteRollBack(); throw; } finally { trans.Dispose(); } } catch (Exception ex) { var randomDog = Dog.FindFirst() Console.WriteLine("Random dog : " + randomDog.Name); } } Stacktrace is as follows: Castle.ActiveRecord.Framework.ActiveRecordException: Could not perform SlicedFindAll for Dog ---> NHibernate.Exceptions.GenericADOException: could not insert: [Mvno.Dal.Dog#219e86fa-1081-490a-92d1-9d480171fcfd][SQL: INSERT INTO Dog (Name, Id) VALUES (?, ?)] ---> System.Data.SqlClient.SqlException: Cannot insert the value NULL into column 'Name', table 'Dog'; column does not allow nulls. INSERT fails. The statement has been terminated. ved System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) ved System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) ved System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) ved System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) ved System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) ved System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async) ved System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, DbAsyncResult result) ved System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(DbAsyncResult result, String methodName, Boolean sendToPipe) ved System.Data.SqlClient.SqlCommand.ExecuteNonQuery() ved NHibernate.AdoNet.AbstractBatcher.ExecuteNonQuery(IDbCommand cmd) ved NHibernate.AdoNet.NonBatchingBatcher.AddToBatch(IExpectation expectation) ved NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql, Object obj, ISessionImplementor session) --- End of inner exception stack trace --- ved NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Boolean[] notNull, Int32 j, SqlCommandInfo sql, Object obj, ISessionImplementor session) ved NHibernate.Persister.Entity.AbstractEntityPersister.Insert(Object id, Object[] fields, Object obj, ISessionImplementor session) ved NHibernate.Action.EntityInsertAction.Execute() ved NHibernate.Engine.ActionQueue.Execute(IExecutable executable) ved NHibernate.Engine.ActionQueue.ExecuteActions(IList list) ved NHibernate.Engine.ActionQueue.ExecuteActions() ved NHibernate.Event.Default.AbstractFlushingEventListener.PerformExecutions(IEventSource session) ved NHibernate.Event.Default.DefaultAutoFlushEventListener.OnAutoFlush(AutoFlushEvent event) ved NHibernate.Impl.SessionImpl.AutoFlushIfRequired(ISet`1 querySpaces) ved NHibernate.Impl.SessionImpl.List(CriteriaImpl criteria, IList results) ved NHibernate.Impl.CriteriaImpl.List(IList results) ved NHibernate.Impl.CriteriaImpl.List() ved Castle.ActiveRecord.ActiveRecordBase.SlicedFindAll(Type targetType, Int32 firstResult, Int32 maxResults, Order[] orders, ICriterion[] criteria) --- End of inner exception stack trace --- ved Castle.ActiveRecord.ActiveRecordBase.SlicedFindAll(Type targetType, Int32 firstResult, Int32 maxResults, Order[] orders, ICriterion[] criteria) ved Castle.ActiveRecord.ActiveRecordBase.FindFirst(Type targetType, Order[] orders, ICriterion[] criteria) ved Castle.ActiveRecord.ActiveRecordBase.FindFirst(Type targetType, ICriterion[] criteria) ved Castle.ActiveRecord.ActiveRecordBase`1.FindFirst(ICriterion[] criteria)

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  • ASP.NET MVC2 JQuery datepicker errors

    - by Andy Evans
    I'm having the "Microsoft JScript runtime error: Object doesn't support this property or method" error when calling the datepicker function on a textbox generated from my data model. in the head section I have: <link href="../../Content/Site.css" rel="stylesheet" type="text/css" /> <script src="../../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftAjax.js" type="text/javascript"></script> <script src="../../Scripts/MicrosoftMvcValidation.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function () { $('#dob').datepicker(); }); and in the body section I have: <% Html.EnableClientValidation(); %> <% using (Html.BeginForm()) { %> ... <tr> <td class="label">Date of Birth:</td> <td><%: Html.TextBoxFor(model => model.dob, new { @class = "inputtext" })%></td> <td><%: Html.ValidationMessageFor(model => model.dob) %></td> </tr> ... <% } %> Do I have something in the wrong place? Again, you folks are a great help and assistance would be greatly appreciated.

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  • UpdateModel() fails after migration from MVC 1.0 to MVC 2.0

    - by Alastair Pitts
    We are in the process of migrating our ASP.NET MVC 1.0 web app to MVC 2.0 but we have run into a small snag. In our report creation wizard, it is possible leave the Title text box empty and have it be populated with a generic title (in the post action). The code that does the update on the model of the Title is: if (TryUpdateModel(reportToEdit, new[] { "Title" })) { //all ok here try to create (custom validation and attach to graph to follow) //if title is empty get config subject if (reportToEdit.Title.Trim().Length <= 0) reportToEdit.Title = reportConfiguration.Subject; if (!_service.CreateReport(1, reportToEdit, SelectedUser.ID, reportConfigID, reportCategoryID, reportTypeID, deviceUnitID)) return RedirectToAction("Index"); } In MVC 1.0, this works correctly,the reportToEdit has an empty title if the textbox is empty, which is then populated with the Subject property. In MVC 2.0 this fails/returns false. If I add the line above: UpdateModel(reportToEdit, new[] { "Title" }); it throws System.InvalidOperationException was unhandled by user code Message="The model of type 'Footprint.Web.Models.Reports' could not be updated." Source="System.Web.Mvc" StackTrace: at System.Web.Mvc.Controller.UpdateModel[TModel](TModel model, String prefix, String[] includeProperties, String[] excludeProperties, IValueProvider valueProvider) at System.Web.Mvc.Controller.UpdateModel[TModel](TModel model, String[] includeProperties) at Footprint.Web.Controllers.ReportsController.Step1(FormCollection form) in C:\TFS Workspace\ExtBusiness_Footprint\Branches\apitts_uioverhaul\Footprint\Footprint.Web\Controllers\ReportsController.cs:line 398 at lambda_method(ExecutionScope , ControllerBase , Object[] ) at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClassd.<InvokeActionMethodWithFilters>b__a() at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) InnerException: Reading the MVC2 Release notes I see this breaking change: Every property for model objects that use IDataErrorInfo to perform validation is validated, regardless of whether a new value was set. In ASP.NET MVC 1.0, only properties that had new values set would be validated. In ASP.NET MVC 2, the Error property of IDataErrorInfo is called only if all the property validators were successful. but I'm confused how this is affecting me. I'm using the entity framework generated classes. Can anyone pinpoint why this is failing?

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  • R: Pass by reference

    - by Pierre
    Can you pass by reference with "R" ? for example, in the following code: setClass("MyClass", representation( name="character" )) instance1 <-new("MyClass",name="Hello1") instance2 <-new("MyClass",name="Hello2") array = c(instance1,instance2) instance1 array instance1@name="World!" instance1 array the output is > instance1 An object of class “MyClass” Slot "name": [1] "World!" > array [[1]] An object of class “MyClass” Slot "name": [1] "Hello1" [[2]] An object of class “MyClass” Slot "name": [1] "Hello2" but I wish it was > instance1 An object of class “MyClass” Slot "name": [1] "World!" > array [[1]] An object of class “MyClass” Slot "name": [1] "World!" [[2]] An object of class “MyClass” Slot "name": [1] "Hello2" is it possible ? Thanks Pierre

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  • Linq to SQL, Repository, IList and Persist All

    - by Dr. Zim
    This discusses a repository which returns IList that also uses Linq to SQL as a DAL. Once you do a .ToList(), IQueryable object is gone once you exit the Repository. This means that I need to send the objects back in to the Repo methods .Create(Model model), .Update(Model model), and .Delete(int ID). Assuming that is correct, how do you do the PersistAll()? For example, if you did the following, how would you code that in the repository? Changed a single string property in the object Called .Update(object); Changed a different string property in the object Called .Update(object); Called .PersistAll(), which would update the database with both changed strings. How would you associate the objects in the Repository parameters with the objects in the Linq to Sql data context, especially over multiple calls? I am sure this is a standard thing. Links to examples on the web would be great!

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  • Validation on DropDownListFor not working with DataAnnotations

    - by Noel
    If I have a drop down list as follows <div class="editor-label"> <%= Html.DropDownListFor(model => model.CardDetail.SelectedCardSchemeId, Model.CardDetail.CardSchemes, "Select")%> </div> and in my model I am using DataAnnotations [Required(ErrorMessage = "* Required SelectedCardSchemeId Message")] public int SelectedCardSchemeId { get; set; } How can I get the message to appear in the view? In debug I can see the ModelState error is populated, but the message is not displayed on the view. I do not have issues with displaying error message for other controls (TextBoxFor)

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  • django views question

    - by Hulk
    In my django views i have the following def create(request): query=header.objects.filter(id=a)[0] a=query.criteria_set.all() logging.debug(a.details) I get an error saying 'QuerySet' object has no attribute 'details' in the debug statement .What is this error and what should be the correct statemnt to query this.And the model corresponding to this is as follows where as the models has the following: class header(models.Model): title = models.CharField(max_length = 255) created_by = models.CharField(max_length = 255) def __unicode__(self): return self.id() class criteria(models.Model): details = models.CharField(max_length = 255) headerid = models.ForeignKey(header) def __unicode__(self): return self.id() Thanks..

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  • Django data migration when changing a field to ManyToMany

    - by Ken H
    I have a Django application in which I want to change a field from a ForeignKey to a ManyToManyField. I want to preserve my old data. What is the simplest/best process to follow for this? If it matters, I use sqlite3 as my database back-end. If my summary of the problem isn't clear, here is an example. Say I have two models: class Author(models.Model): author = models.CharField(max_length=100) class Book(models.Model): author = models.ForeignKey(Author) title = models.CharField(max_length=100) Say I have a lot of data in my database. Now, I want to change the Book model as follows: class Book(models.Model): author = models.ManyToManyField(Author) title = models.CharField(max_length=100) I don't want to "lose" all my prior data. What is the best/simplest way to accomplish this? Ken

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  • PyQt error: No such signal QObject::dataChanged

    - by DSblizzard
    PyQt application works fine, but when I close it Python shows this message: "Object::connect: No such signal QObject::dataChanged(QModelIndex,QModelIndex)" What is the cause of this? There isn't dataChanged signal in the program. EDIT: Almost minimal program which causes error: import sys from PyQt4.QtCore import * from PyQt4.QtGui import * from PyQt4.QtSql import * import ui_DBMainWindow global Mw, Table, Tv Id, Name, Size = range(3) class TTable(): pass Table = TTable() class TMainWindow(QMainWindow, ui_DBMainWindow.Ui_MainWindow): def __init__(self, parent = None): global Table QMainWindow.__init__(self, parent) self.setupUi(self) self.showMaximized() self.mapper = QDataWidgetMapper(self) self.mapper.setModel(Table.Model) def main(): global Mw, Table, Tv QApp = QApplication(sys.argv) DB = QSqlDatabase.addDatabase("QSQLITE") DB.setDatabaseName("1.db") Table.Model = QSqlTableModel() Table.Model.setTable("MainTable") Table.Model.select() Mw = TMainWindow() QApp.exec_() if __name__ == "__main__": main()

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  • Spring Web MVC: Use same request mapping for request parameter and path variable

    - by ngeek
    Good people: is there a way to express that my Spring Web MVC controller method should be matched either by a request handing in a ID as part of the URI path ... @RequestMapping(method=RequestMethod.GET, value="campaigns/{id}") public String getCampaignDetails(Model model, @PathVariable("id") Long id) { ... or if the client sends in the ID as a HTTP request parameter in the style ... @RequestMapping(method=RequestMethod.GET, value="campaigns") public String getCampaignDetails(Model model, @RequestParam("id") Long id) { This seems to me a quite common real-world URL scheme where I don't want to add duplicate code, but I wasn't able to find an answer yet. Any advice highly welcome.

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  • Django query if field value is one of multiple choices

    - by Nathan
    Say I want to model a system where a piece of data can have multiple tags (e.g. a question on a StackOverflow is the data, it's set of tags are the tags). I can model this in Django with the following: class Tag(models.Model): name = models.CharField(10) class Data(models.Model): tags = models.ManyToManyField(Tag) Given a set of strings, what's the best way to go about finding all Data objects that have one of these strings as the name of a tag in their tag list. I've come up with the following, but can't help thinking there is a more "Djangonic" way. Any ideas? tags = [ "foo", "bar", "baz" ] q_objects = Q( tags__name = tags[0] ) for t in tags[1:]: q_objects = q_objects | Q( tags__name = t ) data = Data.objects.filter( q_objects ).distinct()

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  • django: CheckboxMultiSelect problem with db queries

    - by xiackok
    firstly sorry for my bad english there is a simple model Person. That contains just languages: LANGUAGE_LIS = ( (1, 'English'), (2, 'Turkish'), (3, 'Spanish') ) class Person(models.Model): languages = models.CharField(max_length=100, choices=LANGUAGE_LIST) #languages is multi value (CheckBoxSelectMultiple) and here person_save_form: class person_save_form(forms.ModelForm): languages = forms.CharField(widget=forms.CheckBoxSelectMultiple(choices=LANGUAGE_LIST)) class Meta: model = Person it is ok. but how can i search persons for languages like "get persons who knows turkish and english" in the database (MySQL) record "languages" column seen like "[u'1', u'2']". but i want search persons like this: persons = Person.objects.filter(languages__in=request.POST.getlist('languages'))

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  • problem with routing/T4MVC Url.Action()

    - by VinnyG
    I have these 2 routes : routes.MapRoute("Agenda", ConfigurationManager.AppSettings["eventsUrl"] + "/{year}/{month}", MVC.Events.Index(), new { year = DateTime.Now.Year, month = DateTime.Now.Month }); routes.MapRoute("AgendaDetail", ConfigurationManager.AppSettings["eventsUrl"] + "/{year}/{month}/{day}", MVC.Events.Detail(), new { year = DateTime.Now.Year, month = DateTime.Now.Month, day = DateTime.Now.Day }); And it work perfectly with this code : <a href="<%= Url.Action(MVC.Events.Detail(Model.EventsModel.PreviousDay.Year, Model.EventsModel.PreviousDay.Month, Model.EventsModel.PreviousDay.Day))%>" title="<%= Model.EventsModel.PreviousDay.ToShortDateString() %>"><img src="<%= Links.Content.images.contenu.calendrier.grand.mois_precedent_png %>" alt="événement précédent" /></a> Except when I get to do the link to today, if it's today, il will point only to www.myurl.com/agenda, witch is the value of CnfigurationManager.AppSettings["eventsUrl"]. What am I doing wrong? It's like if it's today, it point bak to the default agenda... Thanks for the help!

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  • Javascript Certification

    - by Livingston Samuel
    Is there any proper Certification for Javascript, that covers all the advanced topics of Javascript including the DOM (Document Object Model), BOM (Browser Object Model) and CSS Object Model, that can really evaluate the skills? I've no idea how to scale myself on my JS skills, so any suggestions would be beneficial.

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  • NSMutableDictionary is being treated as an NSDictionary

    - by Marc Gelfo
    Hi, I have a simple class with an NSMutableDictionary member variable. However, when I call setObject:forKey I get an error ('mutating method sent to immutable object'). The source of the problem is obvious from the debugger -- my NSMutableDictionary is actually of type NSDictionary. I must be missing something incredibly simple but can't seem to fix it. Here is the relevant code: // Model.h @interface Model : NSObject { NSMutableDictionary *piers; } @property (nonatomic,retain) NSMutableDictionary *piers; @end // Model.m @implementation Model @synthesize piers; -(id) init { if (self = [super init]) { self.piers = [[NSMutableDictionary alloc] initWithCapacity:2]; [self createModel]; } return self; } -(void) createModel { [piers setObject:@"happy" forKey:@"foobar"]; } @end If I put a breakpoint anywhere in the code and investigate self.piers, it is of type NSDictionary. What am I missing so that it is treated as an NSMutableDictionary instead? Thanks!

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