DevForce Community Forum : Code First Migration http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : Code First Migration Wed, 13 May 2026 01:03:19 -700 Wed, 12 Sep 2012 20:13:26 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=3611 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ Code First Migration : Hi Silvio,Disregard my last reply,... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14422#14422 Author: Vonzkie
Subject: 3611
Posted: 12-Sep-2012 at 8:13pm

Hi Silvio,

Disregard my last reply, I already fixed the issue.
But with the orignial post, just update me when you're done.

Thanks,
Von
]]> Wed, 12 Sep 2012 20:13:26 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14422#14422 Code First Migration : Hi Silvio,What I mean to say is... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14421#14421 Author: Vonzkie
Subject: 3611
Posted: 12-Sep-2012 at 6:57pm

Hi Silvio,

What I mean to say is the Model I'm compiling now with those errors is not the same as the one i send or the one you send, this are separate set of tables, basically another model.

Thanks,
Von
]]> Wed, 12 Sep 2012 18:57:49 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14421#14421 Code First Migration : Von,While I was able to compile... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14414#14414 Author: sbelini
Subject: 3611
Posted: 12-Sep-2012 at 9:03am

Von,
While I was able to compile and enable Migrations in the sample I sent you, it's just for your reference.
I moved the Entity classes around to keep them organized.
Basically the change is that I removed the ForeignKey tags and added a few necessage navigation using fluent API.
Also, be sure to update the connectionString.
Silvio.]]> Wed, 12 Sep 2012 09:03:17 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14414#14414 Code First Migration : Hi,Ok thanks..Just keep me posted... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14409#14409 Author: Vonzkie
Subject: 3611
Posted: 12-Sep-2012 at 4:20am

Hi,

Ok thanks..
Just keep me posted on how it goes.
Btw, did you already encountered some errors like the following:

1st Error:

Error 7 An error occurred during metadata generation and a metadata file could not be created.  Error: Unable to find the requested .Net Framework Data Provider.  It may not be installed. iRely.TankManagement.Model

2nd Error:

Error 7 An error occurred during metadata generation and a metadata file could not be created.  Error: Sequence contains more than one element iRely.TankManagement.Model

This happens when I compile the model (This is not the same model as the first one I send)



]]> Wed, 12 Sep 2012 04:20:33 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14409#14409 Code First Migration : Hi Von,I isolated the issue... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14399#14399 Author: sbelini
Subject: 3611
Posted: 11-Sep-2012 at 1:53pm

Hi Von,
 
I isolated the issue to the [ForeignKey].
I'm still working on determining if this is an EF or DevForce issue.
In the meantime, in order to get you going, you should remove all [ForeignKey] tags from your code.
Note that for your code in particular most of them are redundant because the PK~FK is following naming convention, but you still have a few relations you should either change the property names to follow convention or use fluent API.
 
I'm attaching your sample with the changes I made, so you can get a headstart: uploads/892/iRely.Model.zip
 
Regards,
   Silvio.
]]> Tue, 11 Sep 2012 13:53:10 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14399#14399 Code First Migration : Hi Von,I'm still investigating... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14398#14398 Author: sbelini
Subject: 3611
Posted: 11-Sep-2012 at 9:14am

Hi Von,
 
I'm still investigating and will keep you posted.
 
Silvio.
]]> Tue, 11 Sep 2012 09:14:48 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14398#14398 Code First Migration : Hi Guys,Just want to follow up... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14392#14392 Author: Vonzkie
Subject: 3611
Posted: 10-Sep-2012 at 6:36pm

Hi Guys,

Just want to follow up this.. 

Thanks,
Von
]]> Mon, 10 Sep 2012 18:36:42 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14392#14392 Code First Migration : This is the link of my proje... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14367#14367 Author: Vonzkie
Subject: 3611
Posted: 06-Sep-2012 at 6:26pm

This is the link of my project:
uploads/1228/iRely.Model.rar

The Database Backup is inside the folder Backup


Edited by Vonzkie - 06-Sep-2012 at 6:26pm]]> Thu, 06 Sep 2012 18:26:07 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14367#14367 Code First Migration : Hi,Actually, that's what... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14365#14365 Author: Vonzkie
Subject: 3611
Posted: 06-Sep-2012 at 5:26pm

Hi,

Actually, that's what I did, I select the Project where the DBContext resides.

Btw., the error shown above happened when I used 4.3.1 version of EF4.
Now, I use 4.3.0 and the error didn't show but this is the new error:

PM> Enable-Migrations -Force
System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Data.Entity.ModelConfiguration.Configuration.Types.EntityTypeConfiguration.Configure(EdmEntityType entityType, EdmModel model)
   at System.Data.Entity.ModelConfiguration.Configuration.ModelConfiguration.ConfigureEntities(EdmModel model)
   at System.Data.Entity.DbModelBuilder.Build(DbProviderManifest providerManifest, DbProviderInfo providerInfo)
   at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
   at System.Data.Entity.Infrastructure.EdmxWriter.WriteEdmx(DbContext context, XmlWriter writer)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.<>c__DisplayClass1.<GetModel>b__0(XmlWriter w)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.GetModel(Action`1 writeXml)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.GetModel(DbContext context)
   at System.Data.Entity.Migrations.DbMigrator..ctor(DbMigrationsConfiguration configuration, DbContext usersContext)
   at System.Data.Entity.Migrations.DbMigrator..ctor(DbMigrationsConfiguration configuration)
   at System.Data.Entity.Migrations.Design.MigrationScaffolder..ctor(DbMigrationsConfiguration migrationsConfiguration)
   at System.Data.Entity.Migrations.Design.ToolingFacade.ScaffoldRunner.RunCore()
   at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
Object reference not set to an instance of an object.

PM> Add-Migration Sample -StartupProjectName "iRely.Model"
System.NullReferenceException: Object reference not set to an instance of an object.
   at System.Data.Entity.ModelConfiguration.Configuration.Types.EntityTypeConfiguration.Configure(EdmEntityType entityType, EdmModel model)
   at System.Data.Entity.ModelConfiguration.Configuration.ModelConfiguration.ConfigureEntities(EdmModel model)
   at System.Data.Entity.DbModelBuilder.Build(DbProviderManifest providerManifest, DbProviderInfo providerInfo)
   at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
   at System.Data.Entity.Infrastructure.EdmxWriter.WriteEdmx(DbContext context, XmlWriter writer)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.<>c__DisplayClass1.<GetModel>b__0(XmlWriter w)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.GetModel(Action`1 writeXml)
   at System.Data.Entity.Migrations.Extensions.DbContextExtensions.GetModel(DbContext context)
   at System.Data.Entity.Migrations.DbMigrator..ctor(DbMigrationsConfiguration configuration, DbContext usersContext)
   at System.Data.Entity.Migrations.DbMigrator..ctor(DbMigrationsConfiguration configuration)
   at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.GetMigrator()
   at System.Data.Entity.Migrations.Design.ToolingFacade.GetPendingMigrationsRunner.RunCore()
   at System.Data.Entity.Migrations.Design.ToolingFacade.BaseRunner.Run()
Object reference not set to an instance of an object.




]]> Thu, 06 Sep 2012 17:26:22 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14365#14365 Code First Migration : Hi,In the console, you might need... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14358#14358 Author: Walid
Subject: 3611
Posted: 06-Sep-2012 at 3:27am

Hi,

In the console, you might need to specify in the Default Project combo the Assembly where you DBContext is located.
]]> Thu, 06 Sep 2012 03:27:49 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14358#14358 Code First Migration : Btw., I have an existing database... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14356#14356 Author: Vonzkie
Subject: 3611
Posted: 06-Sep-2012 at 1:12am

Btw., I have an existing database here, I do not create my Database using code first.

Here are my errors:

PM> Enable-Migrations -Force
No classes deriving from DbContext found in the current project.
Edit the generated Configuration class to specify the context to enable migrations for.
No migrations configuration type was found in the assembly 'MyDomain'. (In Visual Studio you can use the Enable-Migrations command from Package Manager Console to add a migrations configuration).


PM> Add-Migration Sample -StartupProjectName "MyDomain"
No migrations configuration type was found in the assembly 'MyDomain'. (In Visual Studio you can use the Enable-Migrations command from Package Manager Console to add a migrations configuration).

Note: I have a custom DBContext in my project
]]> Thu, 06 Sep 2012 01:12:17 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14356#14356 Code First Migration : Hi,Do you have a working example... http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14355#14355 Author: Vonzkie
Subject: 3611
Posted: 06-Sep-2012 at 12:20am

Hi,

Do you have a working example of a Devforce Code First project that uses the Migration Feature of Entity Framework 4.3?
Cause I'm having hard time trying to do what is instructed on this article:
http://blogs.msdn.com/b/adonet/archive/2012/02/09/ef-4-3-code-based-migrations-walkthrough.aspx

I have some errors while executing NuGet commands and I don't know if this is not compatible with Devforce.

Thanks,
Von
]]> Thu, 06 Sep 2012 00:20:57 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=3611&PID=14355#14355