.Net Core 2.0数据库优先方法Mysql DB的Scaffold-DbContext
问题描述：
我正在使用MySQL DB在.Net Core 2.0中开发WEB API.我正在尝试搭建MySQL DB.我已经遵循
I am developing WEB API in .Net Core 2.0 with MySQL DB. I am trying to scaffolding MySQL DB. I have follow This link (MySQL Official Site) but when I fire scaffolding command I getting error both I have mention below, please do let me know if I am doing anything wrong. Command For Scaffolding(firing in Package Manager Console)
Scaffold-DbContext "server=localhost;port=3306;user=root;password=darshan7826;database=sakila" MySql.Data.EntityFrameworkCore -OutputDir sakila -f
执行上述命令时出错
System.NotImplementedException: The method or operation is not implemented.
at MySql.Data.EntityFrameworkCore.Scaffolding.Internal.MySQLDatabaseModelFactory.Create(String connectionString, IEnumerable`1 tables, IEnumerable`1 schemas)
at Microsoft.EntityFrameworkCore.Scaffolding.Internal.RelationalScaffoldingModelFactory.Create(String connectionString, IEnumerable`1 tables, IEnumerable`1 schemas, Boolean useDatabaseNames)
at Microsoft.EntityFrameworkCore.Scaffolding.Internal.ModelScaffolder.Generate(String connectionString, IEnumerable`1 tables, IEnumerable`1 schemas, String projectPath, String outputPath, String rootNamespace, String contextName, Boolean useDataAnnotations, Boolean overwriteFiles, Boolean useDatabaseNames)
at Microsoft.EntityFrameworkCore.Design.Internal.DatabaseOperations.ScaffoldContext(String provider, String connectionString, String outputDir, String dbContextClassName, IEnumerable`1 schemas, IEnumerable`1 tables, Boolean useDataAnnotations, Boolean overwriteFiles, Boolean useDatabaseNames)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.ScaffoldContextImpl(String provider, String connectionString, String outputDir, String dbContextClassName, IEnumerable`1 schemaFilters, IEnumerable`1 tableFilters, Boolean useDataAnnotations, Boolean overwriteFiles, Boolean useDatabaseNames)
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.ScaffoldContext.<>c__DisplayClass0_1.<.ctor>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.<>c__DisplayClass3_0`1.<Execute>b__0()
at Microsoft.EntityFrameworkCore.Design.OperationExecutor.OperationBase.Execute(Action action)
The method or operation is not implemented.
答
挖掘后，我发现.Net Core 2.0 Mysql Connector无法正常工作 经过一些搜索和RnD之后，我从Stack Overflow中找到了 Pomelo Foundation ，我尝试了一下，它起作用了.
After digging i found that .Net Core 2.0 Mysql Connector is not working properly and after some search and RnD i found Pomelo Foundation from Stack overflow i tried it and it works.