1 Star 0 Fork 0

JessGitHub / Link.EntityFramework.Sqlite

Create your Gitee Account
Explore and code with more than 12 million developers,Free private repositories !:)
Sign up
Clone or Download
contribute
Sync branch
Cancel
Notice: Creating folder will generate an empty file .keep, because not support in Git
Loading...
README
MS-PL

Link.EntityFramework.Sqlite —— Entity Framework 6 Sqlite

NuGet

Project Description

Migrations for Entity Framework 6 SQLite provider

Limitations:

  • Relationships are not enforced with constraints
  • There can be only one identity column per table and will be created as integer and primary key (other primary keys will be ignored)
  • ...
  • can not change primary key column

Simplest Usage

  • Download the library (using NuGet)
  • Create a migration configuration
  • Setup the migration configuration (usually during first context creation)
internal sealed class ContextMigrationConfiguration : DbMigrationsConfiguration<Context>
{
    public ContextMigrationConfiguration()
    {
        AutomaticMigrationsEnabled = true;
        AutomaticMigrationDataLossAllowed = true;
    }
}

Old Version Example

Not Realy Delete Column,Just Rename Column

class Context : DbContext
{
    static Context()
    {
        Database.SetInitializer(new MigrateDatabaseToLatestVersion<Context, ContextMigrationConfiguration>(true));
    }

    // DbSets
}

New Version Example

class Context : DbContext
{
    static Context()
    {
        Database.SetInitializer(new MigrateDatabaseToLatestVersionExtention<Context, ContextMigrationConfiguration>(true));
    }

    // DbSets
}

Fix

Implementation

  • Drop Column Imp
    • Rename Column
    • Record Delete Column Info
    • Add Additional Migration
      • Create Temp Table Base Record Info
      • Copy Data To Temp Table
      • Drop Original Table
      • Rename Temp Table
  • Alter Column Imp
    • Similar Drop Column
    • Alter Column Will Migrate Data Column By Column

Refrence

About SQLite

  • Boolean need set default 0/1, not True/False - add column
    • System.Data.Sqlite cast error for True/False - GetBoolean
Microsoft Public License (MS-PL) This license governs use of the accompanying software. If you use the software, you accept this license. If you do not accept the license, do not use the software. 1. Definitions The terms "reproduce," "reproduction," "derivative works," and "distribution" have the same meaning here as under U.S. copyright law. A "contribution" is the original software, or any additions or changes to the software. A "contributor" is any person that distributes its contribution under this license. "Licensed patents" are a contributor's patent claims that read directly on its contribution. 2. Grant of Rights (A) Copyright Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free copyright license to reproduce its contribution, prepare derivative works of its contribution, and distribute its contribution or any derivative works that you create. (B) Patent Grant- Subject to the terms of this license, including the license conditions and limitations in section 3, each contributor grants you a non-exclusive, worldwide, royalty-free license under its licensed patents to make, have made, use, sell, offer for sale, import, and/or otherwise dispose of its contribution in the software or derivative works of the contribution in the software. 3. Conditions and Limitations (A) No Trademark License- This license does not grant you rights to use any contributors' name, logo, or trademarks. (B) If you bring a patent claim against any contributor over patents that you claim are infringed by the software, your patent license from such contributor to the software ends automatically. (C) If you distribute any portion of the software, you must retain all copyright, patent, trademark, and attribution notices that are present in the software. (D) If you distribute any portion of the software in source code form, you may do so only under this license by including a complete copy of this license with your distribution. If you distribute any portion of the software in compiled or object code form, you may only do so under a license that complies with this license. (E) The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees or conditions. You may have additional consumer rights under your local laws which this license cannot change. To the extent permitted under your local laws, the contributors exclude the implied warranties of merchantability, fitness for a particular purpose and non-infringement.

About

Migrations for SQLite Entity Framework provider —— Code First Support expand collapse
C#
MS-PL
Cancel

Releases

No release

Contributors

All

Activities

Load More
can not load any more
C#
1
https://gitee.com/JessGitHub/Link.EntityFramework.Sqlite.git
git@gitee.com:JessGitHub/Link.EntityFramework.Sqlite.git
JessGitHub
Link.EntityFramework.Sqlite
Link.EntityFramework.Sqlite
master

Search