Fetching Strategy example in repository pattern with pure POCO Entity framework
- by Shawn Mclean
I'm trying to roll out a strategy pattern with entity framework and the repository pattern using a simple example such as User and Post in which a user has many posts.
From this answer here, I have the following domain:
public interface IUser {
public Guid UserId { get; set; }
public string UserName { get; set; }
public IEnumerable<Post> Posts { get; set; }
}
Add interfaces to support the roles in which you will use the user.
public interface IAddPostsToUser : IUser {
public void AddPost(Post post);
}
Now my repository looks like this:
public interface IUserRepository {
User Get<TRole>(Guid userId) where TRole : IUser;
}
Strategy (Where I'm stuck). What do I do with this code? Can I have an example of how to implement this, where do I put this?
public interface IFetchingStrategy<TRole> {
TRole Fetch(Guid id, IRepository<TRole> role)
}
My basic problem was what was asked in this question. I'd like to be able to get Users without posts and users with posts using the strategy pattern.
