IT:AD:Code First:Migrations
Summary
Note: An interesting thing to note is that this is the first time I've noticed MS using the Package Manager Console for far more that Packaging. They're using it as a completely new way to script up VS operations. Worth Keeping an eye on future developments in this direction.
Xtra
Process
Prerequisites
Elevated Rights
To do code migrations, the application will need elevated db rights.
Without that, you'll have to use the -script switch to collect together the partial scripts.
Scripting Changes
But…that's nice…but how do we translate all these little updates into something we can deploy as an update script in an client environment which will never give admin rights to the application's account?
That's stumping me.
For now, I've found that one can use the -script flag to output Sql to Visual Studio.
Update-Database -script
CREATE TABLE [dbo].[Estimates] (
[Id] [int] NOT NULL IDENTITY,
[Name] [nvarchar](50) NOT NULL,
[Amount] [float] NOT NULL,
[Description] [nvarchar](max),
CONSTRAINT [PK_dbo.Estimates] PRIMARY KEY ([Id])
)
INSERT [dbo].[__MigrationHistory]([MigrationId], [ContextKey], [Model], [ProductVersion])
VALUES ('201302041024147_AddEstimateDescription', 'XAct.Spikes.CodeMigration.Migrations.Configuration', 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alpha2-11210')
But, as you can imagine, running this in Sql will give:
Msg 2714, Level 16, State 6, Line 1 There is already an object named 'Estimates' in the database.
Solution as per (http://stackoverflow.com/questions/13238203/automatic-migrations-for-asp-net-simplemembershipprovider) is:
Add-Migration InitialMigrations -IgnoreChanges