12/27/2023 0 Comments Scaffold dbcontext sql server![]() ![]() In the next article we will show how to do Code first migrations with Entity Framework 7. This articles demonstrated how to migrate a DbContext from Entity Framework 6 to 7 or how to generate a DbContext from a completely new database. By the way, the new table for the Migration History is called slightly different i.e. If you are scaffolding a DbContext from an existing Entity Framework 6 database, you should remove the class generated for the previous Migration History table _MigrationHistory. if you are using external tools that use the same database, then simply remove the corresponding files and references from DbContext. If you have additional tables in the database, that you actually do not want to use in your DbContext e.g. In the outputDir you will find one generated class for each table in your database and a newly generated DbContext. In my example I am using a Microsoft SQL Server and outputDir as the directory for storing the generated DbContext. If omitted, "Development" is used.ĭnx ef dbcontext scaffold - o outputDir "Data Source=Your ConnectionString" EntityFramework. Scaffold-DbContext M圜onnectionString -OutputDir Models good excuses to skip work reddit scaffld ef6 questions. p|-targetProject The project to scaffold the model into. t|-table Selects a table for which to generate classes. s|-schema Selects a schema for which to generate classes. If omitted, the top-level project directory is used. ![]() o|-outputDir Directory of the project where the classes should be output. c|-context Name of the generated DbContext class. If omitted, the output code will use only the fluent API. a|-dataAnnotations Use DataAnnotation attributes to configure the model where possible. For example, EntityFramework.MicrosoftSqlServer NET project folder, you will get the following output. To be more specific, the examples in this article were done using Entity Framework 7 RC1. If you have not done so already, please read the 2 previous blog entries about ASP. In order to scaffold a DBContext from an existing database, you first have to set up dnx ef. This might not be suitable for everyone, but I wanted to make a clean cut after transitioning to EF 7. After I generated the model, I deleted the previous Migration History table in the database. This minimizes the risk of introducing errors in the new model. Instead I used scaffolding from my existing database to create a completely new model. ![]() In order to migrate my model from Entity Framework 6 to Entity Framework 7, I did not want to manually adjust my old DbContext for Entity Framework 7. DbContext Model Migration from Entity Framework 6 In previous to 7 versions of the Entity Framework all Entity Framework related commands could be executed within Visual Studio. ![]()
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