Entity Framework Core Tutorial - Knowledge Base (KB)
105 results for: in tag: ef-migrations
How to make Package Manager Console in VS2013 available (not disabled)?
Currently, when I open Package Manager Console in VS2013 it is unavailable (all controls are in disabled state). I want to preform migrations in EF7. (EntityFramework.Commands packages from EF7 is installed in the project.)...I am not sure, why it is no l...
asked by TN.
How to apply migrations from code (EF Core)
How to apply migrations from code...for EF6 work code... Database.SetInitializer<CmContext>(null); var settings = new MigrationsConfiguration(); var migrator = new DbMigrator(settings); migrator.Update(); ...how to make similar in EF Core?
asked by Dmitry L
Automatically execute migrations when publishing ASP.NET Core app
Question...Is there any ways that I can automatically execute the migration code (EF 7) when publishing my ASP 5 application to IIS using Web Deploy?...I Tried...in the ...project.json..., I added this code in the ...scripts...:..."scripts" : { "prepu...
asked by A-Sharabiani
ASP EF7 Set column value in migration
I want to move from autoincrement ids to composite primary keys. So, these two entities...public class SeasonTeam { public int SeasonTeamId { get; set; } public int SeasonId { get; set; } public int TeamId { get; set; } } public class Gro...
asked by Sergi0
How to update entity framework 7 migrations and database - Code first
In ef 7, i created an initial migration using command 'dnx ef migrations add Initial'. When i run the application database was created for me, all good....Then i updated my entity objects (CSharp files). Now how can i do:...Update the existing migrations ...
asked by Jash
EF 7 Migration to Existing Database
I am working on a web project using ASP.Net 5 and EF7....I have imported all the tables from existing database onto my models in my project. However, I am having problems in regards with migrations....I have created the initial migration, made some change...
asked by Xerxes1TheGreat
Create and apply migrations for all databases in Entity Framework Core
I have ...ApplicationDbContext..., which dynamically change connection string to database, which depends on user's library name. So, for each library, I have it's own database. When I'm creating migrations and apply them, they are related only to default ...
asked by Yurii N.
How to use EF6 with ASP.NET Core 1
I created an ASP.NET Core 1 project and using .Net Core 1.0 framework. And want to use the ...Entity Framework 6....... I follow this tutorials ...https://docs.efproject.net/en/latest/platforms/aspnetcore/new-db.html... and when I try to migrate with the ...
asked by zero_coding
Enable EF Core Migration in Full .NET Project (*.csproj)
I have a full .NET Framework project (*.csproj) with EF Core data access....How can I have migrations enabled for EF Core in Non-.NET-Core projects (ASP.NET MVC5)?...I get the following error:...dotnet : No executable found matching command "dotnet-ef"
asked by Mohsen Afshin
Add migration with different assembly
I am doing a project in ASP.NET CORE 1.0.0 and I am using EntityFrameworkCore. I have separate assemblies and my project structure looks like this:...ProjectSolution -src -1 Domain -Project.Data -2 Api -Project.Api ...In m...
asked by kdar
Drop database if model changes in EF Core without migrations
In previous version of entity framework, one could recreate the database if the model changes, using some of the classes DropDatabseIfModelChanges and other related classes. In EF7 or EF Core i don't know how to do that. Run the migrations some times giv...
asked by Rey Cruz
Setting -TargetMigration with EF core
I am trying to target a previous applied migration using ...dotnet ef -TargetMigration: {MigrationName}...getting below error...Unrecognized option '-TargetMigration:0'...Is this command has been removed in Entity Framework Core? Is there any alternative...
asked by Venky
How do you make foreign key as NOT NULL in EF Core migrations with Data Annotations?
I'm using ASP.NET Core and EF Core and I have the two following parent and child classes. Each gift card can have many transactions:...public class GiftCard { public int Id { get; set; } public string BarCode { get; set; } public DateTime Purc...
asked by Ray
Migration to/from not found while creating migration script with ASP.NET Core tools
I am trying to use the command ...dotnet ef migrations script... in order to create an SQL script for between the last applied migration and the last not applied migration. Applied migration is one for which is called ...dotnet ef database update...I try ...
asked by feradz
Entity Framework Core migration from a console app not working
I am writing a simple console application to test some EF Core code. ...I added the ...entityframework.commands... package....install-package entityframework.commands -pre ...The connection string is correct and tested, but when I execute...Update-Databas...
asked by Bryan
MigrationHistory as entity in DbContext in Entity Framework 7
I'm trying to get the (by Entity Framework generated) table ...__EFMigrationsHistory...as an entity into my database context:...In Entity Framework 6 this worked fantastically, but did anyone tried it in EntityFramework 7?...What I tried is, to just add a...
asked by Matthias Burger
How do I consolidate migrations using EF Core?
I have these migrations:...00000000000000_First 20161101000000_Foo 20161102000000_Bar // ...many many MANY more 20161108000000_Baz ...I want to consolidate from ...Foo... to ...Baz... into one new migration. I know how to do that in EF, but not in EF Core...
asked by grokky
Generate a composite unique constraint/index, in EF Core
I need a composite unique constraint for my entity's ...Name... property, which is unique per ...Category... (for which it has an FK)....So something like this:...entityTypeBuilder .HasIndex(i => new { i.Name, i.Category.Id }) .IsUnique(); ...But this...
asked by grokky
How do I configured fixed length columns in EF Core?
In the previous EF, I could do this:... entityTypeBuilder .Property(b => b.Foo) .IsRequired() .HasMaxLength(10) .IsFixedLength(); ...That would generate a migration with something like...Foo = c.String(nullable: false, maxLength: 10, fixe...
asked by grokky
EF Core 1.1.0 Migrations on other servers (not development)
When development is finished and TFS (VSTS) takes over. The build completes successfully and the artifact directory contains the published website via a build definition. The Release Manager is then triggered, and takes over and creates a website in an en...
asked by Allan
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