Multi DbContext MSSQL & MySQL

I try to use 2 db connection 1 to MSSQL (abp-zero [roles,users,etc]) one to business data on MySQL.

I use the sample code from https://github.com/aspnetboilerplate/aspnetboilerplate-samples/tree/master/MultipleDbContextDemo and I create the table and it’s work when I call a method, based on a AbpModule to need data from MySql i catch an excection System.Data.Entity.Core.EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details. ---> System.Data.SqlClient.SqlException: Invalid object name 'mdm.app_fd_tb_company'. in System.Data.SqlClient.SqlCommand.<>c.<ExecuteDbDataReaderAsync>b__167_0(Task1 result) in System.Threading.Tasks.ContinuationResultTaskFromResultTask2.InnerInvoke() in System.Threading.Tasks.Task.Execute() So the excetion is relate to System.Data.SqlClient and not to MySql. How can tell to ABP that need to use EF for MySql and not to SQL server.

Another operation that I need to do is to set the initializer Database.SetInitializer<mySqlDbContext>(null); If I not set this row code first say me the database are not update

my db context refered to mysql is declared in this way [DbConfigurationType(typeof(MySqlEFConfiguration))] public class mySqlDbContext : AbpDbContext {

[andmattia]

First of all many thanks to @hikalkan.

In order to use multi connection:

• remember to remove default contructor public secondDbContext(string nameOrConnectionString) : base(nameOrConnectionString) { } in according to https://github.com/aspnetboilerplate/aspnetboilerplate-templates/blob/master/src/AbpCompanyName.AbpProjectName.EntityFramework/EntityFramework/AbpProjectNameDbContext.cs
• In same case need to set the second dbcontext to null in SetInitializer
• Database.SetInitializer<secondDbContext>(null);`

And after this modification my solution work wy MSSQL and MySQL.

mat

[andmattia]

ok I send it full configuration.

So after a lot of investigation i found the problem(probably) but not the solution.

In EF module I set Configuration.DefaultNameOrConnectionString = "mySql"; // "Default"

So the public class EntityFrameworkConventionalRegistrar : IConventionalDependencyRegistrar use connection name to register by IoC.

I try to use ` Database.SetInitializer<mysqlDbContext>(new aa()); } }

public class aa : IDatabaseInitializer<mysqlDbContext>
{

    public void InitializeDatabase(mysqlDbContextcontext)
    {
        context = new mysqlDbContext();

        //var z = context.Database.Connection;


        //var q = DbProviderFactories.GetFactory("MySql.Data.MySqlClient").CreateConnection();

    }

` In Debug I see the the connection is not MySql but MSSQL but the provider is correctly regitered. I have try the custom repository.

I study your multi connection example and I see that is works in same db instance it’s only a separate database.

To solve my issue I think to need extend AbpModule and AbpEF. in EF need to possibile define a local connection string to allow a rigistration for each module with specific connection.