Retrieving data from the same database with the Identity - mysql

Question

I connected the identity model of my WebApp to my MySQL Database, and modified it like I want to connect.
My question is the next: If I want to get data from tables not used in the Identity but still from the same database, What is the correct way to do it? Should I open a new connection and get the data with a class? Is there a way to implement it in the model?
I attach the code to connect to the database:
public void Configuration(IAppBuilder app)
{
DbConfiguration.SetConfiguration(new MySqlEFConfiguration());
ConfigureAuth(app);
context = new ApplicationDbContext();
}
And my connectionStrings:
<connectionStrings>
<add name="DefaultConnection" connectionString="server=x.x.x.x;uid=user;password=pwd;database=db;port=3306;charset=utf8" providerName="MySql.Data.MySqlClient" />
</connectionStrings>
(Sorry if the question is too obvious, I'm starting to develop apps in ASP.NET MVC)

Answer 1

Yes, all you need to do is open the connection when it is required.
So, i assume you did something like this with your MySQL Database connections
public class MySqlInitializer : IDatabaseInitializer<ApplicationDbContext>
{
public void InitializeDatabase(ApplicationDbContext context)
{
if (!context.Database.Exists())
{
// if database did not exist before - create it
context.Database.Create();
}
else
{
// query to check if MigrationHistory table is present in the database
var migrationHistoryTableExists = ((IObjectContextAdapter)context).ObjectContext.ExecuteStoreQuery<int>(
string.Format("SELECT COUNT(*) FROM information_schema.tables WHERE table_schema = '{0}' AND table_name = '__MigrationHistory'",
"[Insert your database schema here - such as 'users']"));
// if MigrationHistory table is not there (which is the case first time we run) - create it
if (migrationHistoryTableExists.FirstOrDefault() == 0)
{
context.Database.Delete();
context.Database.Create();
}
}
}}
and your ApplicationDbContext class will be like this
public class ApplicationUser : IdentityUser{}
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
static ApplicationDbContext()
{
Database.SetInitializer(new MySqlInitializer());
}
public ApplicationDbContext()
: base("DefaultConnection")
{
}
}
Now, to do some queries from database, you need to create an object of ApplicationDbContext
So, your Next Question "Is there a way to implement it in the model?" Yes there is you need to Create a View Model.
public class ItemProduct
{
public int Id {get; set;};
public string Name {get; set;};
}
So, lets say a Product Table exists in your database and we can query on it.
public class HomeController : Controller
{
ApplicationDbContext context = new ApplicationDbContext();
public ActionResult AnyName()
{
List<ItemProduct> lstProducts = new List<ItemProduct>();
var getProducts = (from p in context.Products
select p).ToList();
foreach(var item in getProducts)
{
ItemProduct pro = new ItemProduct()
{
pro.Id = item.Id,
pro.Name = item.Name
};
lstProducts.Add(pro);
}
// So, you have all your Products in ItemProduct Class list.
// Now, return lstProducts to your View to show it on front end
}
}
Hope this answer your question :)