Assign permission for pages using Code first in asp.net MVC - sql

Question

Here I have created a Model Structure in asp.net mvc:
public class UserModel
{
public int UserId { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public List<Permission> Permissions { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
public class Permission
{
public int PermissionID { get; set; }
public bool IsPermit { get; set; }
public string Name { get; set; }
}
and setting some default values in the list and while I am adding the user in the list I assign the permission for pages to that user through the UI (by checking permission checkboxes), so that user can access only the assigned pages:
public static class Repository
{
public static List<UserModel> GetUsers()
{
List<UserModel> listUsers = new List<UserModel>
{
new UserModel
{
UserId = 1,
UserName = "abc",
Password = "abc",
Permissions = new List<Permission>
{
new Permission
{
PermissionID = 1,
IsPermit = true,
Name = "Page1"
},
new Permission
{
PermissionID = 2,
IsPermit = false,
Name = "Page2"
},
new Permission
{
PermissionID = 3,
IsPermit = false,
Name = "Page3"
},
new Permission
{
PermissionID = 4,
IsPermit = false,
Name = "Page4"
}
},
FirstName = "Rohit",
LastName = "Sharma"
},
new UserModel
{
UserId = 2,
UserName = "xyz",
Password = "xyz",
Permissions = new List<Permission>
{
new Permission
{
PermissionID = 1,
IsPermit = false,
Name = "Page1"
},
new Permission
{
PermissionID = 2,
IsPermit = true,
Name = "Page2"
},
new Permission
{
PermissionID = 3,
IsPermit = true,
Name = "Page3"
},
new Permission
{
PermissionID = 4,
IsPermit = true,
Name = "Page4"
}
},
FirstName = "Rahul",
LastName = "Sharma"
}
};
return listUsers;
}
}
Now I want to do the same by using code first approach of database with the help of DbContext class. I have a static list of page permission in a database table (Id =1, Name=Page1; Id =2, Name=Page2; Id =3, Name=Page3; Id =4, Name=Page4).
I am confused while creating model structure for database. Please guide me how to create model structure and mapping of structure with the tables.
I have a table (Permission) in my database with default rows.
ID Name
1 Page1
2 Page2
3 Page3
4 Page4
Now, when I adding user I assigning permission to that user through static checkboxes (Page1, Page2, Page3 and Page4). That’s why I created static table in a database that contains list of pages. My User table is initially blank.
User
Id int NotNull
UserName nvarchar(100) AllowNull
Password nvarchar(100) AllowNull
FirstName nvarchar(100) AllowNull
LastName nvarchar(100) AllowNull

Answer 1

You can use below mentioned structure when you're using code first.You have to maintain conventions when you're using code first (But can be changed when you're using Fluent API).
Model Classes
public class User
{
public int Id { get; set; }
public string UserName { get; set; }
public string Password { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public virtual ICollection<Permission> Permissions { get; set; }
}
public class Permission
{
public int Id { get; set; }
public bool IsPermit { get; set; }
public string Name { get; set; }
public virtual User { get; set; }
}
Tables (This will auto generate.But If you want you can create manually also)
Users
Id int NotNull
UserName nvarchar(100) AllowNull
Password nvarchar(100) AllowNull
FirstName nvarchar(100) AllowNull
LastName nvarchar(100) AllowNull
Permissions
Id int NotNull
IsPermit bit AllowNull
Name nvarchar(100) AllowNull
User_Id int NotNull
DbContext Derived Class
public class UserEntities : DbContext
{
public DbSet<User> Users { get; set; }
public DbSet<Permission> Permissions { get; set; }
}
Fore more information check Code-First Development with Entity Framework
I hope this will help to you.