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  • Model associations

    - by Kalyan M
    I have two models Library and Book. In my Library model, I have an array - book_ids. The primary key of Book model is ID. How do I create a has_many :books relation in my library model? This is a legacy database we are using with rails. Thanks.

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  • Where are Riak Post-Commit Hooks run?

    - by pixelcort
    I'm trying to evaluate using Riak's Post-Commit Hooks to build a distributed, incremental MapReduce-based index, but was wondering which Riak nodes the Post-Commit Hooks actually run on. Are they run on the nodes the client used to put the commits, or on the primary nodes where the data is persisted? If it's the latter, I'm thinking I can from there efficiently do a map or reduce and put additional records from the output.

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  • How can I get Silverlight 4 Tools to work in Web Developer 2010 Express?

    - by Edward Tanguay
    I installed Windows 7. I then installed Web Developer 2010 Express from here with the Web Platform Installer. I then installed the the April 15 release of Silverlight Toolkit from here. I then added this reference: Then in my XAML, I reference it like this but it gives me no intellisense and tells me that I am missing an assembly reference: What do I have to do to use the Silverlight 4 Toolkit in Web Developer 2010 Express?

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  • Changed name of form and project stopped working. Help

    - by Ani
    I have a big project and I changed the name of 1st form from "Form1" to "WebBrowser", now I It gives me following error. The type or namespace 'Form1' could not be found(are you missing a using directive or an assembly reference?) cannot even Change the name back to Form1. it says cannot find WebBrowser.cs on disk its is renamed or deleted from the disk. What I should do, I have a submission tomorrow. Thanks

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  • Which DB? Linq to SQL classes

    - by gadirzade
    Hi. I wont to devolope multiple user supported accounting management aplication in c#.I wont to use linq to sql clases.LINQ to SQL only supports SQL Server/Compact however it is possible the SQLite people have written their own LINQ provider given the name of the assembly.I have to use Db that is FREE.Which DBMS do you prefer to me?

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  • Msql Partitioning - Key vs Hash vs List vs Range

    - by Imran Omar Bukhsh
    I went through some of the documentation of mysql but cannot understand the difference in the following ways of partitioning : Key vs Hash vs List vs Range.Can someone explain in pure english? Also we have the following table: How do we partition by forum_id? CREATE TABLE IF NOT EXISTS `posts_content` ( `id` int(11) NOT NULL AUTO_INCREMENT, `post_id` int(11) NOT NULL, `forum_id` int(11) NOT NULL, `content` longtext CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=79850 ; Thanking you

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  • Using IN with sets of tuples in SQL (SQLite3)

    - by gotgenes
    I have the following table in a SQLite3 database: CREATE TABLE overlap_results ( neighbors_of_annotation varchar(20), other_annotation varchar(20), set1_size INTEGER, set2_size INTEGER, jaccard REAL, p_value REAL, bh_corrected_p_value REAL, PRIMARY KEY (neighbors_of_annotation, other_annotation) ); I would like to perform the following query: SELECT * FROM overlap_results WHERE (neighbors_of_annotation, other_annotation) IN (('16070', '8150'), ('16070', '44697')); That is, I have a couple of tuples of annotation IDs, and I'd like to fetch records for each of those tuples. The sqlite3 prompt gives me the following error: SQL error: near ",": syntax error How do I properly express this as a SQL statement?

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  • internal ToMVCHmlString in TagBuilder

    - by Joe
    I am looking to write a few helpers in my own assembly modeled after the helpers in System.web.mvc. My problem is that I cannot use the call to Tagbuilder.ToMvcHtlString since it is internal. So if I return a string it wont be ready for asp.net 4 when it comes. I dont want to add anything to system.web.mvc as that is a given dll.

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  • visual j# not working in .net 4

    - by arthurdent510
    I tried to convert a project that relies on the vjs runtime to vs2010, but it errors out when trying to run. It's giving the error that "Could not load file or assembly 'vjslib' or one of its dependencies. An attempt was made to load a program with an incorrect format." I reinstalled the vjs runtime, but it didn't seem to help. Is there any way to get get .net 4 to work with this? Thanks!

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  • More GCC link time issues: undefined reference to main

    - by vikramtheone
    Hi Guys, I'm writing software for a Cortex-A8 processor and I have to write some ARM assembly code to access specific registers. I'm making use of the gnu compilers and related tool chains, these tools are installed on the processor board(Freescale i.MX515) with Ubuntu. I make a connection to it from my host PC(Windows) using WinSCP and the PuTTY terminal. As usual I started with a simple C project having main.c and functions.s. I compile the main.c using GCC, assemble the functions.s using as and link the generated object files using once again GCC, but I get strange errors during this process. An important finding - Meanwhile, I found out that my assembly code may have some issues because when I individually assemble it using the command as -o functions.o functions.s and try running the generated functions.o using ./functions.o command, the bash shell is failing to recognize this file as an executable(on pressing tab functions.o is not getting selected/PuTTY is not highlighting the file). Can anyone suggest whats happening here? Are there any specific options I have to send, to GCC during the linking process? The errors I see are strange and beyond my understanding, I don't understand to what the GCC is referring. I'm pasting here the contents of main.c, functions.s, the Makefile and the list of errors. Help, please!!! Vikram main.c #include <stdio.h> #include <stdlib.h> int main(void) { puts("!!!Hello World!!!"); /* prints !!!Hello World!!! */ return EXIT_SUCCESS; } functions.s * Main program */ .equ STACK_TOP, 0x20000800 .text .global _start .syntax unified _start: .word STACK_TOP, start .type start, function start: movs r0, #10 movs r1, #0 .end Makefile all: hello hello: main.o functions.o gcc -o main.o functions.o main.o: main.c gcc -c -mcpu=cortex-a8 main.c functions.o: functions.s as -mcpu=cortex-a8 -o functions.o functions.s Errors ubuntu@ubuntu-desktop:~/Documents/Project/Others/helloworld$ make gcc -c -mcpu=cortex-a8 main.c as -mcpu=cortex-a8 -o functions.o functions.s gcc -o main.o functions.o functions.o: In function `_start': (.text+0x0): multiple definition of `_start' /usr/lib/gcc/arm-linux-gnueabi/4.3.3/../../../crt1.o:init.c:(.text+0x0): first defined here /usr/lib/gcc/arm-linux-gnueabi/4.3.3/../../../crt1.o: In function `_start': init.c:(.text+0x30): undefined reference to `main' collect2: ld returned 1 exit status make: *** [hello] Error 1

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  • ContentPresenter changing Foreground unexpectedly depending on where styles are located

    - by VLTII
    Hi, I'm having an issue with the ContentPresenter behaving unexpectedly based on whether the styles are located in the Window.Resources or in a ResourceDictionary. Specifically, I'm setting the Foreground of the default TextBlock to Black, then setting the Foreground value in my default button style to White. If the styles exits on the page like this, they work fine: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero" x:Class="TestBed.MainWindow" x:Name="Window" Title="MainWindow" Width="640" Height="480"> <Window.Resources> <Style TargetType="{x:Type TextBlock}"> <Setter Property="Foreground" Value="Black" /> </Style> <Style x:Key="ButtonFocusVisual"> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Rectangle Stroke="Black" StrokeDashArray="1 2" StrokeThickness="1" Margin="2" SnapsToDevicePixels="true"/> </ControlTemplate> </Setter.Value> </Setter> </Style> <LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#F3F3F3" Offset="0"/> <GradientStop Color="#EBEBEB" Offset="0.5"/> <GradientStop Color="#DDDDDD" Offset="0.5"/> <GradientStop Color="#CDCDCD" Offset="1"/> </LinearGradientBrush> <SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/> <Style TargetType="{x:Type Button}"> <Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/> <Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/> <Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/> <Setter Property="BorderThickness" Value="1"/> <Setter Property="Foreground" Value="White"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Padding" Value="1"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Button}"> <Microsoft_Windows_Themes:ButtonChrome x:Name="Chrome" SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" RenderDefaulted="{TemplateBinding IsDefaulted}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}"> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RecognizesAccessKey="True"/> </Microsoft_Windows_Themes:ButtonChrome> <ControlTemplate.Triggers> <Trigger Property="IsKeyboardFocused" Value="true"> <Setter Property="RenderDefaulted" TargetName="Chrome" Value="true"/> </Trigger> <Trigger Property="ToggleButton.IsChecked" Value="true"> <Setter Property="RenderPressed" TargetName="Chrome" Value="true"/> </Trigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="#ADADAD"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </Window.Resources> <StackPanel x:Name="LayoutRoot"> <Button Content="Button" /> </StackPanel> </Window> But if I move those same styles over to a ResourceDictionary, the Foreground of the button switches to black. Updated MainWindow: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero" x:Class="TestBed.MainWindow" x:Name="Window" Title="MainWindow" Width="640" Height="480"> <StackPanel x:Name="LayoutRoot"> <Button Content="Button" /> </StackPanel> </Window> ResourceDictionary: <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <Style TargetType="{x:Type TextBlock}"> <Setter Property="Foreground" Value="Black" /> </Style> <Style x:Key="ButtonFocusVisual"> <Setter Property="Control.Template"> <Setter.Value> <ControlTemplate> <Rectangle Stroke="Black" StrokeDashArray="1 2" StrokeThickness="1" Margin="2" SnapsToDevicePixels="true"/> </ControlTemplate> </Setter.Value> </Setter> </Style> <LinearGradientBrush x:Key="ButtonNormalBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#F3F3F3" Offset="0"/> <GradientStop Color="#EBEBEB" Offset="0.5"/> <GradientStop Color="#DDDDDD" Offset="0.5"/> <GradientStop Color="#CDCDCD" Offset="1"/> </LinearGradientBrush> <SolidColorBrush x:Key="ButtonNormalBorder" Color="#FF707070"/> <Style TargetType="{x:Type Button}"> <Setter Property="FocusVisualStyle" Value="{StaticResource ButtonFocusVisual}"/> <Setter Property="Background" Value="{StaticResource ButtonNormalBackground}"/> <Setter Property="BorderBrush" Value="{StaticResource ButtonNormalBorder}"/> <Setter Property="BorderThickness" Value="1"/> <Setter Property="Foreground" Value="White"/> <Setter Property="HorizontalContentAlignment" Value="Center"/> <Setter Property="VerticalContentAlignment" Value="Center"/> <Setter Property="Padding" Value="1"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Button}"> <Microsoft_Windows_Themes:ButtonChrome x:Name="Chrome" SnapsToDevicePixels="true" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" RenderDefaulted="{TemplateBinding IsDefaulted}" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}"> <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" RecognizesAccessKey="True"/> </Microsoft_Windows_Themes:ButtonChrome> <ControlTemplate.Triggers> <Trigger Property="IsKeyboardFocused" Value="true"> <Setter Property="RenderDefaulted" TargetName="Chrome" Value="true"/> </Trigger> <Trigger Property="ToggleButton.IsChecked" Value="true"> <Setter Property="RenderPressed" TargetName="Chrome" Value="true"/> </Trigger> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Foreground" Value="#ADADAD"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> </ResourceDictionary> And my App.xaml because someone will ask for it: <Application xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="TestBed.App" StartupUri="MainWindow.xaml"> <Application.Resources> <!-- Resources scoped at the Application level should be defined here. --> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="ResourceDictionary.xaml"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources> </Application> Any help would be greatly appreciated :)

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  • how to write programs that they use advanced OpenType features?

    - by Sorush Rabiee
    How could I write a simple program using OpenType tables in order to dynamically render text? please answer in : assembly , C , C++ , C# , java or Python (and a little WPF:-) or introduce libraries of them. comments and answers about text rendering system of common Operating Systems, or designing text engines compatible with unicode 5.02 protocol are welcomed.

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  • Accessing the MSP and PSP registers of the Cortex-M3 in C/C++ code using Keil's µVision

    - by Captain NedD
    I need to access the MSP and PSP registers (the main and process stack registers) of the Cortex-M3 processor. I'm writing in C/C++. The µVision and associated compiler doesn't let you do inline assembly for this Thumb-2 only core (and I'm not sure that'd be such a good idea anyway). I need to do this so that I can extract the immediate value of an svc instruction regardless of whether it was executed while in thread or handler mode. Thanks,

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  • Image insertion from SQL info

    - by user528057
    What does 'howard.jpg' do in the sql statement below & how do I insert the image into my android app? CREATE TABLE IF NOT EXISTS employee ( _id INTEGER PRIMARY KEY AUTOINCREMENT, firstName VARCHAR(50), lastName VARCHAR(50), title VARCHAR(50), department VARCHAR(50), managerId INTEGER, city VARCHAR(50), officePhone VARCHAR(30), cellPhone VARCHAR(30), email VARCHAR(30), picture VARCHAR(200)) INSERT INTO employee VALUES(1,'Ryan','Howard','Vice President, North East', 'Management', NULL, 'Scranton','570-999-8888','570-999-8887','[email protected]','howard.jpg')

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  • jquery ui button custom icons

    - by Brett
    It is easy to add one of the icons available as part of the UI Icon Set: $("#myButton").button({icons: {primary: "ui-icon-locked"}}); But what if I want to add one of my own icons that is not part of the framework icon set? I thought it would be as easy as giving it your own CSS class with a background image, but that doesn't work. Any suggestions? .fw-button-edit { background-image: url(edit.png); }

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  • Is it a good idea to keep all the enums in one place?

    - by kzen
    When I'm building a class library I usually create a file Enums.cs to hold all the enums used in the assembly. Here is an example: namespace MyNamespace { public enum Colors { Red, Green, Blue } public enum Shapes { Circle, Square, Triangle } } This makes all my enums easy to find, well organized and easy to access in code. I'm wondering if there is any reason why this would not be such a good idea?

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  • Tools to work with App Engine data dumps

    - by Thilo
    Using the bulkloader.py utility you can download all data from your application's Datastore. It is not obvious how the data is stored, however. From the looks of it, you get a SQLite file with all data in binary format in a single table: sqlite> .tables bulkloader_database_signature result sqlite> .schema result CREATE TABLE result ( id BLOB primary key, value BLOB not null, sort_key BLOB); Are there any tools to work with this data?

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  • Problem reading from 3 tables in mysql

    - by user225269
    What do I do, I need to fetch data from 3 tables in mysql, here is my current query. All of the tables contain the IDNO which has 03A45 number. But this query isnt returning any results: SELECT * FROM father, mother, parents WHERE father.IDNO=mother.IDNO=parents.IDNO AND mother.IDNO='03A45' AND father.IDNO='03A45' AND parents.IDNO='03A45' What would be the correct query for this? All of the tables have the IDNO as primary key.

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