Rails 4 Error: ActiveRecord::HasManyThroughSourceAssociationNotFoundError - ruby-on-rails

Question

Hey,
this is frustrating. I know what's wrong here, but I have no solution to fix it.
First the error, prompting when clicking on 'Favorite' (/app/views/users/index.html.haml)
ActiveRecord::HasManyThroughSourceAssociationNotFoundError in UsersController#userfavorite
Could not find the source association(s) "userfavorite" or :userfavorites in model FavoriteUser. Try 'has_many :userfavorites, :through => :favorite_users, :source => <name>'. Is it one of c_user_id or user_id?
Request: Parameters:
{"_method"=>"get",
"authenticity_token"=>"VkZF4RtOBSXLFw8mygor24Ty/Efx5uSWxto4qRWf1szu3YwFe1/F5+7QtEXXZv9eaQEQvM5O8ELX95wmPLdZYQ==",
"type"=>"favorite", # What i am doing
"id"=>"1"} # My user id
My goal is to allow Users (from the user model) to favorite other users (user model) through the favoriteuser model. The conflict here: I am not able to do the associations right cause I have only one model the data is coming from.
Let me show you the code real quick! (Conflicts user.rb)
app/models/favorite_user.rb
class FavoriteUser < ActiveRecord::Base
belongs_to :c_user_id
belongs_to :user_id
end
app/models/user.rb
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :tools
# Favorite tools of user
has_many :favorite_tools # just the 'relationships'
has_many :favorites, through: :favorite_tools, source: :tool # the actual tools the user favorites
# Favorite users of user
has_many :favorite_users # just the 'relationships'
has_many :userfavorites, through: :favorite_users, source: :user # conflicting! Can't link to userscontroller cause it belongs to the user model, the model we are at right now.
has_many :userfavorited_by, through: :favourite_users, source: :user # conflicting! Can't link to userscontroller cause it belongs to the user model, the model we are at right now.
mount_uploader :avatar_filename, AvatarUploader
end
app/controllers/users_controller.rb
class UsersController < ApplicationController
before_action :find_user, only: [:show, :favorite]
# Add and remove favorite recipes
# for current_user
def userfavorite
type = params[:type]
if type == "favorite"
current_user.userfavorites << #user
redirect_to :back
elsif type == "unfavorite"
current_user.userfavorites.delete(#user)
redirect_to :back
else
# Type missing, nothing happens
redirect_to :back, notice: 'Nothing happened.'
end
end
def index
#users = User.all
end
def show
#tools = Tool.where(user_id: #user).order("created_at DESC")
#tool = Tool.find(1)
end
private
def find_user
#user = User.find(params[:id])
end
end
app/views/users/index.html.haml
- #users.each do |user|
= image_tag gravatar_for user if user.use_gravatar == true
= image_tag user.avatar_filename.url if user.use_gravatar == false
%h2= link_to user.username, user
%p= link_to "Favorite", favorite_user_path(user, type: "favorite"), method: :get
%p= link_to "Unfavorite", favorite_user_path(user, type: "unfavorite"), method: :get
app/config/routes.rb
resources :users, only: [:index, :show, :userfavorite] do
get :userfavorite, on: :member
end
Attributes of :favorite_users
c_user_id:integer user_id:integer
(=> c_user_id for currents user id - so the user who is adding favorite users)
I hope the provided data is enough, if not please tell me. I'm grateful for all Your replies.

Answer 1

Here is my suggestion:
user.rb
userfavorites - will list all user you have favorited
has_many :favorite_relationships, class_name: "FavoriteUser", foreign_key: "c_user_id"
has_many :userfavorites, through: :favorite_relationships, source: :user
userfavorited_by - will list all user who favorited you
has_many :favorited_relationships, class_name: "FavoriteUser", foreign_key: "user_id"
has_many :userfavorited_by, through: :favorited_relationships, source: :c_user
FavoriteUser
edited:
class FavoriteUser < ActiveRecord::Base
belongs_to :c_user, class_name: "User"
belongs_to :user, class_name: "User"
end
After you make changes, make sure to test first in your console that the relationships works. then make appropriate change in your view, controller etc...