has_many and belongs_to, how to print creator's name

I have a user table(id, username, ...), and I have a task table, this implies the tasks 开发者_运维百科informations: task name, the creator's id and the task solver's id.

This is my dbase logic:

class User < ActiveRecord::Base

  has_many :tasks,  :foreign_key=>"creator_id"
  has_many :tasks,  :foreign_key=>"solver_id"
end

class Task < ActiveRecord::Base
  belongs_to :user
end

Is this right? In Task list I want to print the creators name. How can I do that?

In your Task model you want:

 belongs_to :creator, :foreign_key => "creator_id", :class_name => "User"
 belongs_to :solver, :foreign_key => "solver_id", :class_name => "User"

and in your User model:

  has_many :created_tasks,  :foreign_key=>"creator_id", :class_name => "Task"
  has_many :solved_tasks,  :foreign_key=>"solver_id", :class_name => "Task"

So now you can do something like:

@user.created_tasks
@user.solved_tasks

and @task.creator and @task.solver