Download Code-First Development with Entity Framework by Sergey Barskiy PDF

By Sergey Barskiy

Take your info entry abilities to the subsequent point with Entity Framework

About This Book

create, retrieve, replace, and delete the information in a relational database utilizing .NET
make a choice from an array of examples in C# and VB.NET that exhibit the most important innovations of Entity Framework
this can be a fast paced, useful consultant in keeping with the code-first process for the Entity object-relational mapper

Who This publication Is For

This publication is meant for software program builders with a few previous event with the Microsoft .NET framework who are looking to easy methods to use Entity Framework. This ebook gets you up and operating quick, supplying many examples that illustrate the entire key ideas of Entity Framework.
In Detail

Entity Framework Code-First allows builders to learn and write facts in a relational database procedure utilizing C# or VB.NET. it really is Microsoft's solution to call for for an ORM from .NET developers.

This ebook may help to procure the mandatory abilities to application your purposes utilizing Entity Framework. you are going to begin with database configuration and the way to write periods that outline the database constitution. you will find how LINQ can be utilized with Entity Framework to provide you entry to kept information. you'll then how you can use Entity Framework to persist info in a Relational Database administration approach. additionally, you will see how one can take advantage of writing ORM-based .NET code. ultimately, you'll find out how Entity Framework can assist to resolve database deployment difficulties utilizing migrations.

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Extra resources for Code-First Development with Entity Framework

Example text

End def to_pdf # ... end end Often, the code you’re about to move into a module doesn’t fit in the original class in the first place. The conversion methods above aren’t really part of an Order object mandate. An Order object should be responsible for order-like processes: calculating price, managing line items, and so on. Keepin’ It Classy When code doesn’t belong in the class that contains it, you should refactor the code into a class of its own. This is an application of the Single Responsibility Principle.

You’ve improved the situation a bit, but as far as delegation of responsibilities goes, you’ve simply moved the problem into the User model. The User model now knows far too much about the Membership model’s implementation, which is a clue that you still haven’t pushed the methods far enough. AssociationProxy Magic You’ll learn more about association flexibility in a later AntiPattern, but knowing a bit about how Active Record associations work is important for this example. When you access an Active Record association, what you get isn’t an array but a proxy class of type ActiveRecord::Associations::AssociationProxy that walks and talks like an array.

Com/mislav/ will_paginate) library. You can slim down this example considerably. First, you need to install Sphinx. html), and it should be a piece of cake. If you’re using package systems such as apt, port, and yum, you may have options available as well. /configure make sudo make install Note The default configure setup excludes PostgreSQL support. /configure --with-pgsql=`pg_config --pkgincludedir` Next, you need to install the Thinking Sphinx gem: gem install thinking-sphinx Note Before you get caught up with the specifics of the sample application, you need to understand the basic process for using Sphinx.

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