Code First Approach In Entity Framework With Existing Database

The resulting entities are created and mapped to the tables in the specified database. Or you can also use this approach with existing database, which is called code first with existing database For example, if you want a table to hold a list of planets: public class Planet. NET Entity Data Model and choose EF Designer from database. Initializing a database with Entity Framework is essential. When you follow EF code first approach, then you have three options for initializing database as given below-. We had an entity (EF bounded), and we wanted to update the entity’s foreign key references from an existing entity. Just like any other ORM, there are two main design workflows that is supported by Entity Framework Core: The Code-First approach which is you create your classes (POCO Entities) and generate a new database out from it. When working with object-relational mapping frameworks such as Entity Framework, we often have to choose between one of the three available approaches to model the data structure: Model-First, Database-First, and Code-First. Take advantage of the Code First data modeling approach in ADO. When building your model, you need to follow Code First conventions and configurations so that Entity Framework can read, interpret your model, and map it to a database accordingly. This article helps you to mitigate any conflicts and. 0 (in my case, using MS SQL Server 2008). Master Your Classes™. NET MVC application with Entity Framework (EF) to provide a user interface to Microsoft's AdventureWorks sample SQL database. Advantages. Entity Framework – Database First Approach Example Database First allows you to reverse engineer a model from an existing database. ReversePoco. In my last article, I explained the theory behind the Entity Framework and the other two approaches, i. In the previous article, we have seen the migrations to create a database from a DbContext and classes. the existing web application code to use the Windows Azure SDK. Following are some of the advantages and disadvantages on each Approaches of Entity Framework. Project is created with MVC folder. Entity Framework Code First Approach Whether you have an existing database or not, you can code your own classes and properties (aka Plain Old CLR Objects, or POCOs) that correspond to tables and columns and use them with the Entity Framework without an. The Entity Framework Code First approach allows us to create a model as a plain class and then the database gets created from the domain model or entity class. 0 - Code First Reverse Engineering existing Database - Duration: Part 3 Entity Framework Code First Approach - Duration: 16:27. NET code; the reverse is false with SQL Views using code first approach. Whether you're new to Entity Framework, or been using it for a while but are looking for a comprehensive course with a clean structure to fill the missing parts, you're going to love this course. Note: This Tutorial also works with MariaDB. Our entity data model will be based on the exiting database “SampleDB_1” then we will modify the code to allow many databases. You will see the above database structure, where two tables will create associate with all keys. In this post, we'll explore creating a Database-First model using an. Enterprises migrate to the cloud for many reasons, but generally when. Entity framework code first 1. As a developer, if you are already familiar with SQL Database development, then this approach can help you in rapid application development. Getting Started with Entity Framework Core (PostgreSQL) Core is a lightweight and extensible version of the popular Entity Framework Code-First Approach and Database-First Approach. This is the default database initializer class used by Code First. 1 Posted on August 1, 2014 by Tony Sneed Until now Trackable Entities has required the Entity Framework Power Tools to reverse engineer Code-First model classes from an existing database. Note: This Tutorial also works with MariaDB. Entity Framework Core - Getting Started. NET Core MVC application that performs basic data access using Entity Framework Core. Database First approach is also known as Schema First Approach; this is the most popular or easy approaches that new developer start with entity framework development. What if Database is already created & have data in it, does code first approach drop the entire database & create a new DB with dbo. Notice the use of the substitution string |DataDirectory| prior to the database file name - by default, this maps to the App_Data folder in an ASP. In the database first approach you start with an existing database, from which you can generate the models for your application. Using a database project leaves entity framework’s EDMX file as a push button solution for interacting with your database in code, however you cannot customize what that looks like. Select ADO. Code-First is mainly useful in Domain Driven Design. NET MVC Entity Framework Code First approach. In this approach, EDMX is created from the existing database. The Database First Approach provides an alternative to the Code First and Model First approaches to the Entity Data Model. Adapting an existing Entity Framework project to a T-SQL migrations-based one. We’ll start by creating the database from scripts, scaffolding the model within a project, adding a migration for the initial create, and finally, adding a migration to seed the data from scripts. Go to Tools-> NuGet Package Manager-> Manage NuGet. When the dot net code is run database will get created. Now we will take a look at each of these steps in a bit more detail. Before the days when a single check in would run through the build process CI/CD pipeline, it was normal for the development stage to make constant changes to a database structure. In this approach, we can do all the database operations from. Migrations allow you to evolve your database without losing data or other database objects. If you have used Entity Framework in the past, you will probably have heard about the Code First approach. this sample demonstrates how to use entity framework DB First in ASP. Entity Framework 5 Code First in MVC 4 for beginners A database can be created using Code First approach in Entity Framework 5. NET Entity Data Model from wizard and enter name article tutorial in the Name field. Code First Approach In code first approach we will first create entity classes with properties defined in it. To use the database first approach, start with an existing database and use Entity Framemaker to generate code for a web application based on the fields of that database. It includes bug fixes and new supported types. In the previous article, we have seen the migrations to create a database from a DbContext and classes. - Web forms support for new AJAX library improvements including built-in support for content delivery networks (CDNs). Entity Framework v6. That's horrific. Last call for fall! Get one-stop enrollment services Aug. This class. Step 4: Right Click Project in Solution Explorer, then Click on Entity Framework and then click on Reverse Engineer Code First. NET Entity Data Model from wizard and enter name article tutorial in the Name field. And finally, let me teach you the implementation of model first approach using the Entity Framework 6 for connecting with the database via the web app In this example, I’ll be using the MVC5 Project Template for creating ASP. Microsoft will retire the visual design tool for its Entity Framework (EF) database tool in the upcoming version 7, in favour of a text-based “code first” approach. but after trying for a week now I am not getting any success in retrieving the data. So far all examples in the book have been based on a project started from scratch with a new database; however, in reality this kind of greenfield project is rare. Following is a simple example of creating a new MVC 4 project using database First approach. So in Model First approach, when you add ADO. Support for the EDMX file was dropped in Entity Framework Core in favour of using commands to reverse-engineering files for the model from an existing database schema. The Entity Framework (EF) is an Object Relational Mapping (ORM) tool that allows developers to work with the database by simply writing. NET MVC Entity Framework. Entity Framework Code First allows you to create data model classes prior to creating a database. au offers you simple and convenient access to all the government information, forms and services you need. By using our website you consent to all cookies in accordance with our updated Cookie Notice. It is Microsoft's answer to demand for an ORM from. The database-first approach consists of a Visual Studio wizard that infers an object model from an existing database. Create Initial Code First Migration. This class creates a database only if it doesn’t exist. This is the default database initializer class used by Code First. Within Code First, the classes defined in code that comprise the model are known as Plain Old CLR Objects (POCOs). NET provides a built-in user database with support for multi-factor authentication and external authentication with Google, Twitter, and more. Entity Framework updating (Code First) existing entity using foreign key Id(s) mistakes Recently we have come across with a scenario like below. Whether you're new to Entity Framework, or been using it for a while but are looking for a comprehensive course with a clean structure to fill the missing parts, you're going to love this course. We will start with database initialization. NET Core MVC application that performs basic data access using Entity Framework Core. Ambily Kavumkal Kamalasanan discusses the advantages of the Model, Database, and Code First approaches to modeling in Entity Framework 5. 0 新功能之一,可透過已存在的 Database 進行反向工程,把相關 Schema 轉成 Code First. 5 , latest odac components & odp manager. It automatically generates a lot of files which should not be altered and at times versioning of the database becomes very difficult. After creating required entities, associations and inheritance on design surface of the empty model, you can use designer's context menu option 'Generate database from model'. Using Entity Framework Code First with an existing database: 2 To recap: I recreated my database as a Code First POCO layer (by hand!) in Part 1 , and now I need to migrate changes to the entity model to my database. Whether you're new to Entity Framework, or been using it for a while but are looking for a comprehensive course with a clean structure to fill the missing parts, you're going to love this course. 0 - Code First,. NET supports Code First and Code First Migrations from Entity Framework 6. NET Entity Framework has come a long way since its early beginnings as an NHibernate alternative and the successor to LinqToSQL. Entity framework allows us to access a relational database using strongly typed C# code or any. _MigrationHistory table?? In addition to SQL Server, you can also use the Entity Framework Code-First in databases such as MySQL, Oracle, etc. Its demo application is linked at the end which will help to things understand the concept easily. What are the pros & cons of using Entity Framework 4. , database first and model first approach. Entity Framework v6. NET Core and work cross-platform. The ease of turning C# classes into a database design makes it very approachable for developers who have limited database design experience. Entity Framework Code First is another approach released with Entity Framework 4. We will start with database initialization. 1 and works with database initializers. In my next article I will be explaining you the details implementation on Entity framework Database first approach. Entity Framework Code-First enables developers to read and write data in a relational database system using C# or VB. A Console Application will act as the Client Application. For example, you can create database using designer, than you can alter database using sql script and update your model. So in Model First approach, when you add ADO. Code First allows you to create the model from your existing POCO(Plain Old CLR. Entity Framework Code First migrations are an exciting and powerful new feature that will dramatically simplify your deployment and update process. Some developers prefer to work with the Designer in Code while others would rather just work with their code. edmx] and you are a code lover so u will be definitely choosing code first approach in entity framework. When working with the context, containing large number of objects (10³ and more), refusal of the Entity Framework infrastructure (adding to context + saving the context) and switch to SqlBulkCopy for adding records to DB can improve performance in dozens, and even hundreds of times. Getting Started with Entity Framework Core (PostgreSQL) Core is a lightweight and extensible version of the popular Entity Framework Code-First Approach and Database-First Approach. NET apps on Linux, macOS, and Windows. The GLA wishes to develop a post construction monitoring platform to collect and display the reported energy performance information from new build developments by extending the GLA/UCL tool (the ‘London Building Stock Model” (LBSM)); which is a new web platform that contains data on the energy performance of all existing buildings in London. Learn, teach, and study with Course Hero. In order to scaffold a DbContext from an existing database, you first have to set up project. 3, the only way to manage the database creation from Code First model is using the Database initializers. For an introduction to EF take a look at our earlier tip Intro to Entity Framework with SQL Server. Entity Framework Code First Approach: Before we had the ability to right code first approach, if we want to work with entity framework to connect to database and work with tables, then first we need to create tables in database, then create. That gives you the information you need to create the model classes manually. Net Core using Mac. NET Entity Framework, and learn how to build and configure a model based on existing classes in your business domain. Here you will learn how to create the context and entity classes for an existing database in Entity Framework Core. Assuming you can use Code First and then still point the class to an existing data model (instead of being forced to generate the model) the Code First approach could still help to write properly abstracted and testable code without all the usual "cruft" of using Entity Framework (i. 2 Code First project, which I wanted to upgrade to 4. Using Entity Framework Code First with an existing database: 1 For all the talk of Code First in the. The Database-First approach allows you to use an existing database and generate classes based on your database schema. The asynchronous callback-style of programming required can lead to complex code that is hard to maintain, to debug and to test. Data Base First: Database is created first or we can use the existing database and then code will be auto generated with the help of Entity Framework. kudvenkat 280,606 views. the existing web application code to use the Windows Azure SDK. Getting Started with Entity Framework Core (PostgreSQL) Core is a lightweight and extensible version of the popular Entity Framework Code-First Approach and Database-First Approach. NET forums , and more. NET Core MVC application that performs basic data access using Entity Framework Core. EF has built-in support for using existing views using the database first approach. Learn, teach, and study with Course Hero. Net Core using Mac. Entity Framework Approaches in Action Enough of theory, let’s start with the implementation part one by one and step by step to explore and learn each approach. Data) has these entities configuration with DbContext. In this article we will walk through the steps for creating database objects from existing entities using IBM Data Server provider for Entity Framework Core Code First approach. Microsoft Entity Framework abstracts the relational, logical database schema and presents a conceptual schema to the. Review these steps before attempting the tutorial. The database in the project and those classes become the link between the database and controller. I am new to the Entity Framework and also new to Oracle. I have created a new Console application - which same Product model. In my last article, I explained the theory behind the Entity Framework and the other two approaches, i. The second way to design your model in EF is to do the designing in EF itself and then instruct EF to build the database for you. Entity framework will create the database and tables based on the entity classes defined. net mvc with example. Entity Framework offers two main approaches to get an object model to carry on queries and updates—database-first and code-first. I want to distance myself from Code First and am hoping that the EF Designer will be a buffer. Some developers prefer to work with the Designer in Code while others would rather just work with their code. Using Entity Framework Code First approach on existing databases Most developers prefer Code First style when they use entity framework in their applications. If you’re using Entity Framework 6. This approach has matured and is included an a DI configuration option in the Spring Java 3. Tarun Kumar Chatterjee. When you’re just getting started with C#, you can get overwhelmed by the benefits and drawbacks of the different ORMs and approaches people take. I will be using visual studio 2015 with C# as a programming language. Entity Framework (EF) allows you to program against a model, creating models directly at code level. If you work with Visual Studio and understand database management basics, this book is for you. Entity Framework Code-First sounds great,. When your priority is the code and you want to begin from scratch without any existing schemas or XML mapping files using source code, then the approach is called Code First. Entity Framework Code-First Syed Awn Ali Syed Awn Ali 3. In this post, we will build an ASP. Entity Framework updating (Code First) existing entity using foreign key Id(s) mistakes Recently we have come across with a scenario like below. Migrations are like version control for your database, allowing your team to easily modify and share the application's database schema. With this concise book, you'll work hands-on with examples to learn how Code First can create an in-memory model and database by default, and how you can exert. To be more specific, the examples in this article were done using Entity Framework 7 RC1. Now, select the data connection for the existing database. 1 few of them are linked in my article), if like to create model first then do it first and so on. NET Entity Framework, and learn how to build and configure a model based on existing classes in your business domain. We will create a simple application that will save recipe of dishes and information of writer of recipe. NET apps on Linux, macOS, and Windows. Entity Framework Core supports Database-First approach via the Scaffold-DbContext command of Package Manager Console. This course teaches you about Entity Framework Code First Migrations introduced in EF 4. Create Initial Code First Migration. You will see the above database structure, where two tables will create associate with all keys. Assuming you can use Code First and then still point the class to an existing data model (instead of being forced to generate the model) the Code First approach could still help to write properly abstracted and testable code without all the usual "cruft" of using Entity Framework (i. When you follow EF code first approach, then you have three options for initializing database as given below-. 1 onwards now has a feature that supports using a Code First approach with an existing database. With the Code-First approach, you can focus on the domain design and start creating classes as per your domain requirement rather than design your database first and then create the classes which match your database. Code-First Approach. Microsoft will retire the visual design tool for its Entity Framework (EF) database tool in the upcoming version 7, in favour of a text-based "code first" approach. It's no coincidence that many of the most popular web programming frameworks also encapsulate MVC principles: Django, Ruby on Rails, CakePHP, Struts, and so forth. Generate Context and Entity Classes from an Existing Database in EF 6 Code-First Approach. Since that isn't a concern of mine I'm failing to see the benefit of allowing entity framework to create my. Microsoft Entity Framework abstracts the relational, logical database schema and presents a conceptual schema to the. Subscribe Migrating Production Database with Entity Framework Code First 04 November 2014 on entity framework, database, migrations. NET MVC 5 applications using the Entity Framework 6 and Visual. We had an entity (EF bounded), and we wanted to update the entity’s foreign key references from an existing entity. “This is one of those useful tools you just should always have around and ‘linqed’ to a hotkey”. Microsoft's Code First to an Existing Database tutorial is designed for use with Microsoft's. Entity Framework (EF) is the preferred data access solution and Object-Relational Mapper (ORM) from Microsoft. Assuming you can use Code First and then still point the class to an existing data model (instead of being forced to generate the model) the Code First approach could still help to write properly abstracted and testable code without all the usual "cruft" of using Entity Framework (i. net framework 4. Using Entity Framework (EF) Code-First Migrations in nopCommerce for Fast Customizations By Woon Cherk Lam | Thursday, December 19, 2013 I've seen a lot of nopCommerce forums users asking how they can use Entity Framework (EF) Code-First Migrations to customize nopCommerce , add new fields and entites to the core. I'm not talking about generating your database from code. This is the reverse of the model first approach where models are created first and database later. Using Entity Framework Code First approach on existing databases Most developers prefer Code First style when they use entity framework in their applications. Let's see both with an example. Net Core using Mac. The approach is based on the principle that leases are financings of the right to use an underlying asset. NET Entity Data Model and Select Generate from database EF Designer model in Entity Data Model Wizard. We used the Entity Framework Tools for Visual Studio to reverse engineer a set of classes that mapped to the database and could be. So database is generated from the code. kudvenkat 280,606 views. Have a look at the below modified code of person. the generated metaclasses). While we are working with the entity framework we don’t have to worry about the SQL connections, SQL commands, SQL parameters, SQL data readers and none of the low level abstractions we have programmed with in the past with. Entity Framework Code First Approach Entity Framework is an enhancement to an existing ADO. In this tutorial you are going to learn how to use the Entity Framework Database First approach, through an example, to build a website using ASP. Entity Framework Core Tutorial Code First. 0 - Code First,. We will understand how to use a database engine in order to save, Edit, Update, and delete the data needed for your application using ASP. It will generate the script & exeute the script in database, it will create both the tables with proper relationship. So, this is the data annotation approach to create database using code first approach of entity framework. Originally I used EF 6 code first to create a new database and two new tables. Figure 1 - With Database First, You Reverse-Engineer a Model from a Legacy Database. Entity Framework Code First - Defining Foreign Keys using Data Annotations and Fluent API When using Entity Framework Code First approach, there are actually three ways to define foreign keys. I've tried googling around a bit and reading MSDN but most of the benefits seems to be that you don't need to worry about the SQL. Entity Framework updating (Code First) existing entity using foreign key Id(s) mistakes Recently we have come across with a scenario like below. You don’t create or update database schemas in the early phase of the project. When the dot net code is run database will get created. By using our website you consent to all cookies in accordance with our updated Cookie Notice. In the previous article, we have seen the migrations to create a database from a DbContext and classes. It is Microsoft's answer to demand for an ORM from. You don't run the Entity Framework visual design tool, neither to design entities (Model First) nor to map entities to an existing database (Database First). This tutorial shows how to use Entity Framework 6, Language Integrated Query (LINQ), and generate Data Definition Language (DDL) scripts using Model-First for Oracle database. It includes bug fixes and new supported types. Code first migrations in Entity Framework has existed since Entity Framework 4. Each one of them comes with its fair amount of advantages and disadvantages, as the experienced readers and seasoned DB. Some advantages of the Entity Framework Code First approach include. In the previous post we have created 2 Entity Framework Core (EF Core) models with a code first approach. Entity Framework Code-First support for Oracle, MySQL, PostgreSQL and SQLite March 1st, 2011 April 2011 saw the release of a new version of Entity Framework 4. Using code first approach I will start writing application domain classes and context classes to generate database using Entity Framework 6. In our last tutorials, we explained how to define your model using POCO classes. the existing web application code to use the Windows Azure SDK. Net Framework. CakePHP makes building web applications simpler, faster, while requiring less code. Now, let's create a simple Windows Forms application using Model First approach. A Sample eCommerce Site With Entity Framework and nopCommerce - DZone. T4 files are used to generate code-first DBContext and POCO class files for both EF6 and EFCore, and these can be modified to generate your own particular style. Programming Entity Framework: Code First: Creating and Configuring Data Models from Your Classes [Julia Lerman, Rowan Miller] on Amazon. Select Data from the left menu and then ADO. NET MVC4 Web Application-> Entry Application Name-> OK. Using Entity Framework Core in a Console App. Runtimes, SDKs, and developer packs for. And the database will be created on the basis of your classes. This article helps you to mitigate any conflicts and. The data may be in a format that makes it hard to access or update, and may include functions and procedures. In our last tutorials, we explained how to define your model using POCO classes. ReversePoco. This tutorial shows how to use Entity Framework 6, Language Integrated Query (LINQ), and generate Data Definition Language (DDL) scripts using Model-First for Oracle database. By the end of watching this course, you'll be able to: Understand the differences between code-first and database-first workflows ; Build a domain. Syed Awn Ali 2. If you have used Entity Framework in the past, you will probably have heard about the Code First approach. 0 (in my case, using MS SQL Server 2008). Starting with Oracle Data Access Components (ODAC) 12c Release 3 (12. This class creates a database only if it doesn’t exist. I mean the edmx design model from this article. Do you want help with your database design?. You simply right click on the mode and select Add Code Generation Item, then pick DbContext template. Here you will find the information on how to start with an existing database and quickly create a simple event calendar in. Here is a diagram to show you the three DDD approaches, showing what code the entity classes contain. Take advantage of the Code First data modeling approach in ADO. Entity Framework Code First is a solid approach for any. This article is the first part of the series on Getting Started with Entity Framework Core. Net Core is a lightweight and cross-platform version of the DotNet framework and the awesome thing is Developers required the same expertise to work with Asp. This tutorial is dedicated for the Code First approach. If you’re reading this and it’s not working for you, as of December 12, 2015 the names have changed a bit for 7. That's horrific. EF Core does not support all the features offered by Entity Framework 6. Entity Framework (EF) allows you to program against a model, creating models directly at code level. In this post, we will build an ASP. , database first and model first approach. Within Code First, the classes defined in code that comprise the model are known as Plain Old CLR Objects (POCOs). Last call for fall! Get one-stop enrollment services Aug. Originally I used EF 6 code first to create a new database and two new tables. The above code will drop the database when we change the model, instead of this approach use package manager console to enable Migrations following code will enable the Migrations and update the database without loosing data. Introduction The intent of this article is to explain the code first approach and code first migrations that Microsoft’s Entity Framework provides. A general understanding to the three models is that, business analyst uses conceptual and logical model for modeling the data required and produced by system from a business angle, while database designer refines the early design to produce the physical model for presenting physical database structure ready for database construction. */ The Resource and Document Library contains guidance and policy papers, program regulations, guidelines, brochures, and more. Syed Awn Ali 2. Getting Started with Entity Framework Core (PostgreSQL) Core is a lightweight and extensible version of the popular Entity Framework Code-First Approach and Database-First Approach. NET code; the reverse is false with SQL Views using code first approach. This will open the Entity Data Model wizard as shown below. Entity Framework is an. Entity Framework v6. Microsoft Entity Framework abstracts the relational, logical database schema and presents a conceptual schema to the. Without knowing out database table we could write code our own poco classes and properties that correspond to tables and columns and use them with the Entity Framework without an. Before understanding code first migrations, let's have a look at Code First Database Initializers provided by Entity Framework. This article is the first part of the series on Getting Started with Entity Framework Core. Code First is probably the most preferred way to build an Entity Data Model that can be used with Entity Framework to perform data access. Net Core using Mac. The Database First Approach provides an alternative to the Code First and Model First approaches to the Entity Data Model. Such approach is called "database-first". Whether you have an existing database or not, you can code your own classes and properties (aka Plain Old CLR Objects, or POCOs) that correspond to tables and columns and use them with the Entity Framework without an. With the release of Entity Framework 4. Sorry, you need to enable. GetFeaturedProducts @p0", count); Here the Entity Framework takes care for preventing the SQL injection attack. 3 like CreateDatabaseIfNotExists, DropCreateDatabaseIfModelChanges or DropCreateDatabaseAlways. Starting with Code First in Entity Framework By Christos S. Since that isn't a concern of mine I'm failing to see the benefit of allowing entity framework to create my. Commonly Used Types: Microsoft. You will see the above database structure, where two tables will create associate with all keys. Code-first approach could also be used to generate code from an existing database, so basically it offers two methods in which it could be used. It is Microsoft's answer to demand for an ORM from. Adapting an existing Entity Framework project to a T-SQL migrations-based one. In the Database First approach, you started with an existing database and used the Entity Framework wizard to create the Entity Data Model (EDM). The Migrations - Under the Hood screencast is a pre-requisite to this screencast. NET MVC application with Entity Framework (EF) to provide a user interface to Microsoft's AdventureWorks sample SQL database. Let's see both with an example. , database first and model first approach. Customers are in codefirst model with separate context where as vehicles are in edmx. Two of the important functionalities that Entity Framework provides us are: Entity framework can create classes in c# from the database schema It can also create database tables from the model classes. Here you will learn how to create the context and entity classes for an existing database in Entity Framework Core. Entity Framework Code First with Existing Database approach enables you to use your old database in new MVC5 application. While there is a straight forward way of creating tables from your Entity Framework (EF) entity models by simply writing. We create the database first, separately from EF. Thus, the developer can work in an object-oriented manner without worrying about the structure of the database. We will understand how to use a database engine in order to save, Edit, Update, and delete the data needed for your application using ASP. NET › Starting with Code First in Entity Framework. Get this from a library! Programming entity framework : Code First. Using Entity Framework (EF) Code-First Migrations in nopCommerce for Fast Customizations By Woon Cherk Lam | Thursday, December 19, 2013 I've seen a lot of nopCommerce forums users asking how they can use Entity Framework (EF) Code-First Migrations to customize nopCommerce , add new fields and entites to the core.

/
/