EF6 + MySql + Identity + another DBContext - mysql

Question

ASP.NET MVC 5 with EF6 and MySql using Identity 2. I've been doing DBA-like 'bigdata' for quite a few years and now I'm back in the land of code. I understand EF as an architecture but am struggling with my lack of expertise in getting the ground floor laid for my project especially with the MySql wrinkle.
What I have done successfully: Created a project with a MySQLConfiguration, MySqlHistoryContext, and MySqlInitializer, ran a migration to successfully create the tables for Identity, deployed the site to local server and can successfully register a user and log in. GREAT!
Question: I'm lost as far as how to manage two contexts, merge contexts, what ought be my best practice so I can continue to extend Identity objects and add new database tables through POCO models and migrations to the same database and have them work through a context at the controller.
Guidance would be helpful. I believe my issues are in creating the second context which I would prefer use the same connection.
Attached are my class mods from other tutorials and references.
How do I create a new context which would create a new table from a POCO model using a migration??
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
static ApplicationDbContext()
{
Database.SetInitializer(new MySqlInitializer());
}
public ApplicationDbContext()
: base("DefaultConnection", throwIfV1Schema: false)
{
}
public static ApplicationDbContext Create()
{
return new ApplicationDbContext();
}
}
Some comments online suggest not needing a MySqlInitializer. I hardcoded the db name so simply "get it working".
public class MySqlInitializer : IDatabaseInitializer<ApplicationDbContext>
{
public void InitializeDatabase(ApplicationDbContext context)
{
if (!context.Database.Exists())
{
context.Database.Create();
}
else
{
var migrationHistoryTableExists = ((IObjectContextAdapter)context).ObjectContext.ExecuteStoreQuery<int>(
string.Format("SELECT COUNT(*) FROM [hardcodeddbname].__MigrationHistory"));
if (migrationHistoryTableExists.FirstOrDefault() == 0)
{
context.Database.Delete();
context.Database.Create();
}
}
}
}
public class MySqlConfiguration : DbConfiguration
{
public MySqlConfiguration()
{
SetHistoryContext(
"MySql.Data.MySqlClient", (conn, schema) => new MySqlHistoryContext(conn, schema));
}
}
public class MySqlHistoryContext : HistoryContext
{
public MySqlHistoryContext(
DbConnection existingConnection,
string defaultSchema)
: base(existingConnection, defaultSchema)
{
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<HistoryRow>().Property(h => h.MigrationId).HasMaxLength(100).IsRequired();
modelBuilder.Entity<HistoryRow>().Property(h => h.ContextKey).HasMaxLength(200).IsRequired();
}
}