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  • Does retrieving an object from Doctrine2 cause __construct() of the model class to run?

    - by jiewmeng
    When I retrieve an object say by $em->find('Application\Models\User', 1); or other methods like DQL, findBy*() cause the __construct() of the model class to run? I am having a problem where I set variables there like reference to EntityManager and I find that its not set. I tried putting a die() in __construct() and it doesn't halt the application. Can I say that if I want to set other properties/fields like EntityManager $em I have to do it some other way? Perhaps something like protected function getEm() { if (!isset($this->em)) { $this->em = \Zend_Registry::get('em'); } return $this->em; }

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  • spring mvc nested model validation

    - by hguser
    I have two models : User,Project public class Project{ private int id; @NotEmpty(message="Project Name can not be empty") private String name; private User manager; private User operator; //getter/setter omitted } public class User{ private int id; private String name; //omit other properties and getter/setter } Now, when I create a new Project, I will submit the following parameters to ProjectController: projects?name=jhon&manager.id=1&operator.id=2... Then I will create a new Project object and insert it to db. However I have to validate the id of the manager and operator is valid,that's to say I will validate that if there is matched id in the user table. So I want to know how to implement this kind of validation?

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  • In what package should a "Settings" class be?

    - by Tom
    I've in the middle of building an application but found myself too easily creating new packages without keeping the project's structure in mind. Now, I'm trying to redo the whole project structure on paper first. I am using a Settings class with public properties, accessed as settings for several other classes around the project. Now, since this Settings class applies for the whole project, I am unsure if it should be packaged and if so, in what kind of package should it exist? Or should it be in the root (the default package) with the main application class? I've been thinking about putting it in my utils package, then again I don't think it really is an utlity. Any strategies on how to decide on such package structure for example for a Settings class?

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  • Linker Error: iPhone Unit Test Bundle referencing App classes

    - by ohhorob
    Starting with an app already in development, I have carried out the instructions in the iPhone Development Guide – Unit Testing Applications I can successfully include and use my App's classes in Application-style tests that run on the device, and output their results to the console. If I add the following line of code: STAssertTrue([viewController isKindOfClass:[LoginViewController class]], @"Top view controller is not LoginViewController"); The following build error is generated: Undefined symbols: "_OBJC_CLASS_$_LoginViewController", referenced from: __objc_classrefs__DATA@0 in LoginViewTest.o ld: symbol(s) not found collect2: ld returned 1 exit status I can provide more configuration information for the project and the Testing target, but the setup works file without the [LoginViewController class] line in the test source. Without that line, I can reference the class, use it's properties and send it messages successfully. Is there a linking build setting, or bundle loading option that is required when attempting to use an App class in this fashion? Or should I find another type of test to confirm that the class of an object is the expected one?

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  • Raise an event when Property Changed using Reflection

    - by Dante
    I am working in C# and I have an object which I can only access using Reflection (for some personal reasons). So, when I need to set some value to one of its properties I do as below: System.Reflection.PropertyInfo property = this.Parent.GetType().GetProperty("SomeProperty"); object someValue = new object(); // Just for example property.SetValue(this.Parent, someValue, null); And, to get its value I use the method GetValue. My question is: Is there a way to fire an event when the property changes using Reflection? Thank you in advance.

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  • C# to Java: What is a [DefaultProperty("value")]?

    - by Shiftbit
    I do not understand how the DefaultProperty Metadata tag work or what it signifies. I've read the MSDN and went through the sample but I find it confusing. DefaultPropertyAttribute Class I've read a few blogs and they seem to refer to the indexers. I'm not sure why you would want metadata for your properties? I am coming from a Java background, perhaps a Java analogy would help. [DefaultProperty("Value")] public abstract class FOO<T> : ANY, IBAR<T> { public FOO() { } public FOO(T value) { this.Value = value; } public virtual T Value { get; set; } } Follow up: Property Grid

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  • Where I should call [object release] ?

    - by mongeta
    Hello, I've subclassed some UITextField and added some custom properties. In a UITableViewController, in the ViewDiDLoad I init them, and in the cellForRowAtIndexPath I add them to the cell with [cell.contentView addSubview:customTextField]; Each cell has a different customTextField as all of them are very different. Where I should call the [customTextField release] ? After I add them to the cell view ? If for example I call [self.tableView reloadData] my customTextField are going to be added again to the cell, so maybe I should change my approach in doing this ? thanks for the orientation ... regards, r.

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  • Huge AS 3.0 Export Frame

    - by goorj
    I am creating a very simple flash animation with no code or complex effects, just text and simple tweens (Flash CS5) But I have problems reducing the size of my swf. From the generated size report, it looks like it has to do with fonts and/or exported actionscript classes. The frame with AS 3.0 Classes is over 100K, and even though I am only using one fonts, the same characters are embedded/exported multiple times My questions are: Do embedding of mixed TLF/Classic text (or mixing other text properties, spacing/kerning etc) require the same characters to be embedded twice? Do text transformations on TLF text (rotation and different transformations not available in classic text) require embedding of ("internal") AS3 classes that will increase the size of the .swf? (even though none of these classes are explicitly used by me, there are no scripts in the fla project) I have tried removing all the text instances one by one, and at one point, the swf is reduced to only 5-6K, but I am not able to pinpoint exactly what causes the ballooning of the swf

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  • How to deal with constructor argument names?

    - by Bane
    Say I have a class that has some properties, like x, y, width and height. In its constructor, I couldn't do this: class A { public: A(int, int, int, int); int x; int y; int width; int height; }; //Wrong and makes little sense name-wise: A::A(int x, int y, int width, int height) { x = x; y = y; width = width; height = height; } First of all, this doesn't really make sense. Second, x, y, width and height become some weird values (-1405737648) when compiled using g++. It does work, however, if I append "a" to the argument names. What is the optimal way of solving these naming conflicts?

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  • How to set a property of a C# 4 dynamic object when you have the name in another variable

    - by Kieran Benton
    I'm looking for a way to modify properties on a dynamic C# 4.0 object with the name of the property known only at runtime. Is there a way to do something like (ExpandoObject is just used as an example, this could be any class that implements IDynamicMetaObjectProvider): string key = "TestKey"; dynamic e = new ExpandoObject(); e[key] = "value"; Which would be equivalent to: dynamic e = new ExpandoObject(); e.TestKey = "value"; Or is the only way forward reflection?

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  • Where do I put the .js file when I create js interface with Graphene 2

    - by Thang Pham
    I follow this tutorial https://docs.jboss.org/author/display/ARQGRA2/JavaScript+Interface Where do I put my helloworld.js file? I put it under webapp/resources/js/helloworld.js and I do import org.jboss.arquillian.graphene.javascript.Dependency; import org.jboss.arquillian.graphene.javascript.JavaScript; @JavaScript("helloworld") @Dependency(sources = "js/helloworld.js") public interface HelloWorld { String hello(); } and I got NPE when I inject @JavaScript private HelloWorld helloWorld; Please help. Here is my POM, I use glassfish3.1 <properties> <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <version.org.jboss.arquillian>1.0.4.Final</version.org.jboss.arquillian> <version.org.jboss.arquillian.drone>1.2.0.Alpha2</version.org.jboss.arquillian.drone> <version.org.jboss.arquillian.graphene>1.0.0.Final</version.org.jboss.arquillian.graphene> <version.org.jboss.arquillian.graphene2>2.0.0.Alpha4</version.org.jboss.arquillian.graphene2> </properties> <dependencyManagement> <dependencies> <!-- Arquillian Drone dependencies and Selenium dependencies --> <dependency> <groupId>org.jboss.arquillian.extension</groupId> <artifactId>arquillian-drone-bom</artifactId> <version>${version.org.jboss.arquillian.drone}</version> <type>pom</type> <scope>import</scope> </dependency> <!-- Arquillian Core dependencies --> <dependency> <groupId>org.jboss.arquillian</groupId> <artifactId>arquillian-bom</artifactId> <version>${version.org.jboss.arquillian}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.jboss.spec</groupId> <artifactId>jboss-javaee-6.0</artifactId> <version>1.0.0.Final</version> <type>pom</type> <scope>provided</scope> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.jboss.arquillian.junit</groupId> <artifactId>arquillian-junit-container</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.jboss.arquillian.extension</groupId> <artifactId>arquillian-drone-webdriver-depchain</artifactId> <type>pom</type> <scope>test</scope> </dependency> <dependency> <groupId>org.jboss.arquillian.graphene</groupId> <artifactId>graphene-webdriver</artifactId> <version>${version.org.jboss.arquillian.graphene2}</version> <type>pom</type> <scope>test</scope> </dependency> <dependency> <groupId>org.jboss.arquillian.graphene</groupId> <artifactId>graphene-webdriver-impl</artifactId> <version>${version.org.jboss.arquillian.graphene2}</version> <type>jar</type> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-simple</artifactId> <version>1.6.4</version> <scope>test</scope> </dependency> <dependency> <groupId>org.jboss.arquillian.container</groupId> <artifactId>arquillian-glassfish-remote-3.1</artifactId> <version>1.0.0.CR4</version> <scope>test</scope> </dependency> </dependencies>

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  • Is there a language designed for code golf?

    - by J S
    I am not really a fan of code golf, but I have to wonder, is there an esoteric language designed for it? I mean a language with following properties: Common programs may be expressed in very short amount of characters It uses ASCII character set effectively (for example, common operators are not identifiers, so they don't have to be separated by whitespace, character usage is distributed more or less evenly because we cannot use Huffman coding and so on) Except the terse syntax, it should have very expressible and clean semantics (like, let's say, Python or Scheme); it shouldn't be difficult to program in It doesn't need features for large scale programs, such as OOP, but it definitely should allow custom functions and data structures It should have a large standard library, identifiers in this library should be as short as possible Maybe it should be called CG? Languages that can be a source of inspiration are Forth, APL and Joy.

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  • RIA Services - Two entity models share an entity name

    - by Alex
    I have two entity models hooked up to two different databases. However, the two databases both have a table named 'brand', for example. As such, there is a naming conflict in my models. Now, I've been able to add a namespace to each model, via Custom Tool Namespace in the model's properties, but the generated code in my Silverlight project will try to use both namespaces, and come up with this, Imports MyProject.ModelA Imports MyProject.ModelB Public ReadOnly Property brands() As EntitySet(Of brand) Get Return MyBase.EntityContainer.GetEntitySet(Of brand) End Get End Property giving me this exception: 'Error 1 'brand' is ambiguous, imported from the namespaces or types 'MyProject.ModelA,MyProject.ModelB'. Has anyone had experience with naming conflicts like this using RIA services? How did you solve it?

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  • Reintegrate a branch with externals fails in SVN

    - by dnndeveloper
    What I am doing: Apply external properties to a folder in the trunk (both single file and folder external, externals are binary files) Create a branch from the trunk and update the entire project Modify a file on the branch and commit the changes, then update the entire project. Merge - "Reintegrate a branch" when I get to the last screen I click "test merge" and get this error: Error: Cannot reintegrate into mixed-revision working copy; try updating first I update the entire project and still the same error. Other observations: If I "Merge a range of revisions" everything works fine. If I remove the externals everything works fine using either "Merge a range of revisions" or "Reintegrate a branch". How do I solve this issue? I am using Subversion 1.6.6 with TortoiseSVN 1.6.6.

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  • Cannot edit ColumnDefinitions property in Visual Studio WPF application, ellipsis are invisible!

    - by SLC
    I have a window that looks like this: <Window x:Class="MyWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="My Title" Height="300" Width="300" ResizeMode="NoResize" SizeToContent="Height" WindowStartupLocation="CenterOwner"> <DockPanel> <Grid x:Name="MyGrid" DockPanel.Dock="Top" Margin="10"> </Grid> </DockPanel> </Window> Pretty simple. The instructions I am following suggest that if I click the item, the properties window will appear (it does), and then I can click ColumnDefinitions (which is a Collection) to bring up the Collection Editor and add some columns. However, the ColumnDefinitions property looks like this: The ColumnDefinitions ellipsis you'd normally press is gone, or invisible, or something. Any idea why?

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  • How to create and update spreadsheet using OLEDB in C#?

    - by vamshi
    HI! all I am creating .xls spreadsheet file using following code using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\\temp.xls;Extended Properties='Excel 8.0;HDR=Yes'")) { conn.Open(); OleDbCommand cmd = new OleDbCommand("CREATE TABLE [NewSheet] ([Column1] string, [Column2] string)", conn); cmd.ExecuteNonQuery(); } but i am getting an exception at cmd.ExecuteNonQuery(); Exception is: Cannot modify the design of table 'NewSheet'. It is in a read-only database. Please help me to resolve this Thank You

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  • Flex - weird display behavior on large number of Canvas

    - by itarato
    Hi, I have a Flex app (SDK 3.5 - FP10) that does mindmap trees. Every node is a Canvas (I'm using Canvas specific properties so I needed it). It has a shadow effect, background color and some small ui element on it (like icons, texts...). It works perfectly until it goes over ~700 nodes (Canvas). Over that number it shows grey rectangles: http://yfrog.com/bhw2pj . If I turn off the DropShadowFilter effect for the Canvas, they are also gone, so I assume it's a DropShadowFilter problem: http://yfrog.com/2d9y8j . The effect is simple: private static var _nodeDropShadow:DropShadowFilter = new DropShadowFilter(1, 45, 0x888888, 1, 1, 1); _backgroundComp.filters = _nodeDropShadow; Is it possible that Flex can't handle that much? Thanks in advance

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  • What is the algorithm used by the memberwise equality test in .NET structs?

    - by Damian Powell
    What is the algorithm used by the memberwise equality test in .NET structs? I would like to know this so that I can use it as the basis for my own algorithm. I am trying to write a recursive memberwise equality test for arbitrary objects (in C#) for testing the logical equality of DTOs. This is considerably easier if the DTOs are structs (since ValueType.Equals does mostly the right thing) but that is not always appropriate. I would also like to override comparison of any IEnumerable objects (but not strings!) so that their contents are compared rather than their properties. This has proven to be harder than I would expect. Any hints will be greatly appreciated. I'll accept the answer that proves most useful or supplies a link to the most useful information. Thanks.

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  • C#: Replicating keyboard shortcuts in textbox, how do I prevent the beep sound caused by alt key pre

    - by Michael Johnson
    I'm creating a routine that allows the user to replicate keyboard shortcuts into a textbox for 'custom keyboard shortcuts' customization, but everytime the alt key is pressed with another letter, it produces another sound. I'm capturing the keys in the textbox_keydown event to parse the modifiers + other keys into a readable Shift + A or Ctrl + Shift + B manner into that very same textbox. Should I be doing this in a different event like textbox_previewkey instead of textbox_keydown? How can I prevent the alt modifier key + a letter or number causing the Beep sound? the textbox is just a normal .net 3.5 textbox with the only edited properties of it being the ReadOnly property to false. Is there a better way I could re-do this? I'm currently just checking that if any modifiers keys are pressed and then + a-z or 0-9, then to go ahead and input the appropriately pressed keys into that same textbox like Shift + A or Ctrl + Shift + Y.

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  • Issue with child of custom Decorator class in WPF (c#)

    - by galacticgrug
    I need a custom border that renders a little differently than a normal border. I made a class that inherited from Decorator as follows class BetterBorder : Decorator { protected override Size ArrangeOverride(Size arrangeSize) { return arrangeSize; } protected override void OnRender(DrawingContext dc) { //these values are calculated elsewhere dc.DrawGeometry(backgroundBrush, borderPen, pathGeometry); } } //Properties and helper methods below this All of this works fine until I try to add a child to the control, the control can be added but is not visible and seems to be moved off BetterBorders visible client area. If I inherit from Border everything works fine, what am I missing?

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  • Updating Silverlight with data. JSON or WCF?

    - by Alastair Pitts
    We will be using custom Silverlight 4.0 controls on our ASP.NET MVC web page to display data from our database and was wondering what the most efficient method was? We will be having returned values of up to 100k records (of 2 properties per record). We have a test that uses the HTML Bridge from Javascript to Silverlight. First we perform a post request to a controller action in the MVC web app and return JSON. This JSON is then passed to the Silverlight where it is parsed and the UI updated. This seems to be rather slow, with the stored procedure (the select) taking about 3 seconds and the entire update in the browser about 10-15sec. Having a brief look on the net, it seems that WCF is another option, but not having used it, I wasn't sure of it's capability or suitability. Does anyone have any experiences or recommendations?

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  • WPF: DataGrid Custom. ColumnDesign with my own classes

    - by user437899
    Hi, iam looking for a datagrid which contains objects from my class. class user { string name; int ID; ... } i tried AutoGenerateColumns = true. this will add columns (name, ID, ... like the properties of my class) but i want a different design. not all attributes from the object shold be shown and the columnheader shouldn't be generated from the variablenames... if i build a custom. column-design, i cant add my objects / they will not be displayed. is it possible to define my own columns according to my objects/class. i read about databindings, but i have no idea how i can bind objects/classes in WPF. (in Visual Studio i cant choose my class as datacontext)

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  • Obtaining reference to Class instance by string name - VB.NET

    - by Jeff Williams
    Is it possible using Reflection or some other method to obtain a reference to a specific class instance from the name of that class instance? For example the framework for the applications i develop heavily uses public class instances such as: Public bMyreference as MyReference = new MyReference Then throughout the application bMyReference is used by custom controls and code. One of the properties of the custom controls is the "FieldName" which references a Property in these class instances (bMyReference.MyField) as a string. What i would like to be able to do is analyze this string "bMyReference.MyField" and then refer back to the actual Instance/Property. In VB6 I would use an EVAL or something simular to convert the string to an actual object but this obviously doesn't work in VB.net What I'm picturing is something like this Dim FieldName as String = MyControl.FieldName ' sets FielName to bMyReference.MyField Dim FieldObject() as String = FieldName.Split(".") ' Split into the Object / Property Dim myInstance as Object = ......... ' Obtain a reference to the Instance and set as myInstance Dim myProperty = myInstance.GetType().GetProperty(FieldObject(1))

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  • OLEDB connection does not read data from excel sheet

    - by Pooja
    Hi All, i am getting a weird problem. i am using OLEDB for excel connection with connection string = Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\Execute.xls;Extended Properties=Excel 8.0;"); excel file contains columns with string/integer values. the problem is that sometimes connection read values from sheet absolutly fine but sometimes it missed out some data values and shows them as System.DBNull. the behavior is very inconsistent. please help.

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  • Why would a TableAdapter populate a DataSet with "1/1/2000" for an entire timestamp column?

    - by Rob
    I have a TableAdapter filling a DataSet, and for some reason every select query populates my timestamp column with the value 1/1/2000 for every selected row. I first verified that original values are intact on the DB side; for the most part, they are, although it seems a few rows lost their original timestamp because of update queries performed programmatically before the issue was discovered. The DataColumn type is DateType, while the database (Postgres) column type is timestamp. Up until recently, this was all playing very nicely. I noticed the issue in a bound DataGridView control, and verified that this is not related to data binding by utilizing the 'Preview Data' option in the VS DataSet Editor. Usually when I notice unexpected values popping up in my application it's related to a mis-configured property, type conflict, or another silly mistake I've made. So after checking properties and types, and even recreating the TableAdapter from scratch, to say I'm a little baffled is an understatement. Does anyone have any ideas of what I could do to fix the issue and/or diagnose the cause?

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