The functionality I'm trying to build allows Users to Visit a Restaurant.

I have Users, Locations, and Restaurants models. Locations have many Restaurants.

I've created a Visits model with user_id and restaurant_id attributes, and a visits_controller with create and destroy methods.

Thing is, I can't create an actual Visit record. Any thoughts on how I can accomplish this? Or am I going about it the wrong way.

Here's the code:

Model:

class Visit < ActiveRecord::Base
  attr_accessible :restaurant_id, :user_id
  belongs_to :user 
  belongs_to :restaurant
end

View:

  <% @restaurants.each do |restaurant| %>
    <%= link_to 'Visit', location_restaurant_visits_path(current_user.id, restaurant.id), method: :create %>
    <% @visit = Visit.find_by_user_id_and_restaurant_id(current_user.id, restaurant.id) %>
    <%= @visit != nil ? "true" : "false" %>
  <% end %>

Controller:

class VisitsController < ApplicationController
  before_filter :find_restaurant
  before_filter :find_user

  def create

    @visit = Visit.create(params[:user_id => @user.id, :restaurant_id => @restaurant.id])

    respond_to do |format|
      if @visit.save
        format.html { redirect_to location_restaurants_path(@location), notice: 'Visit created.' }
        format.json { render json: @visit, status: :created, location: @visit }
      else
        format.html { render action: "new" }
        format.json { render json: @visit.errors, status: :unprocessable_entity }
      end
    end
  end

  def destroy
    @visit = Visit.find(params[:user_id => @user.id, :restaurant_id => @restaurant.id])
    @restaurant.destroy

    respond_to do |format|
      format.html { redirect_to location_restaurants_path(@restaurant.location_id), notice: 'Unvisited.' }
      format.json { head :no_content }
    end
  end

  private

  def find_restaurant
    @restaurant = Restaurant.find(params[:restaurant_id])
  end

  def find_user
    @user = current_user
  end

end