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public static class ObjectExtensions
{
    public static TReturn safe<T, TReturn>(this T testedObject, Func<T, TReturn> member, TReturn defaultValue = default(TReturn))
        where T : class
    {
        return testedObject != null ? member(testedObject) : defaultValue;
    }
}

// Usage example:

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for /d /r . %%d in (bin, obj) do @if exist "%%d" rd /s/q "%%d"

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DiskPart
List Disk
Select Disk #
Clean
Create Partition Primary
Select Partition 1
Active
Format fs=FAT32 quick
Assign

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using (var context = new DatabaseContext())
{
  context.Configuration.ValidateOnSaveEnabled = false;
  
  // create product with existing ID
  var product = new Product
  {
    Id = 928
  };
  

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<system.web>
    <customErrors 
        mode="RemoteOnly"
        
        // ResponseRewrite would be a better way, but is uses Server.Transfer so we have to use
        // ResponseRedirect which redirects whole page. To do this better you have to wrap 404 errors
        // in Application_Error
        
        redirectMode="ResponseRedirect" 
        defaultRedirect="Error">

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<input 
    data-val="true"
    data-val-extension="Wrong extension"
    data-val-extension-list="jpg|jpeg"
    type="file"
    />
    
// Add reference to additional-methods.js from http://jqueryvalidation.org

// Add at the end of the jquery.validate.unobtrusive.js

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namespace System.IO
{
    public static class StreamExtensions
    {
        public static byte[] ToByteArray(this Stream inputStream)
        {
            using (var memoryStream = new MemoryStream())
            {
                inputStream.Position = 0;
                inputStream.CopyTo(memoryStream);

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<Target Name="BeforeBuild" DependsOnTargets="CreateVersionInfo">
    <TransformXml Source="web.base.config" Transform="web.orig.$(Configuration).config" Destination="web.config" />
</Target>

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namespace System.Web.Mvc
{
    using Linq.Expressions;

    public static class ModelStateDictionaryExtensions
    {
        public static void AddModelError<TEntity, TValue>(this ModelStateDictionary modelState, TEntity model, Expression<Func<TEntity, TValue>> member, string value)
        {
            var memberPath = ExpressionHelper.GetExpressionText(member);
            modelState.AddModelError(memberPath, value);

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#!/bin/bash
env=prod
app_repo=
app_name=

rm -r code/
git clone ${app_repo} code
cd code

mix deps.get --only ${env}