EF6 in the original database using Codefirst Total review (second, new requirements, simple modification of the original table)

First, enable data migration for the current entity model

The foundation is set up, that is, the original database has, the original database of the entity object also has, but the generated context does not mark whether the current database exists, whether the current entity has been modified (the previous version appears to be marked), so, to first enable the migration.

When you enable migration, new folders and classes are automatically generated, so you can

Files automatically added by the system

The system is reborn as a table in the database.

At this point, the migration preparation is over, and after a period of adaptation, does the other person's child look like their own?

Ii. adding soft-deleted columns for a blog entity object

Third, try to run again

Error due to no isdelete field in database table blogs

Iv. Re-migration

Table Blogs has the Isdelete column

The data in the table still adds the default value, is this the default value we added in the blog constructor? One Test .

After the modification, just repeat the above two steps on the line, where the first name changed to new.

Do not use the client to edit the site's documents, can only create a new article.