got Create / Read working for Roles

Author: declan

app/controllers/actors_controller.rb

@@ -1,5 +1,4 @@
 class ActorsController < ApplicationController
-  around_filter Neo4j::Rails::Transaction, :only => [:edit, :update, :destroy, :create]
 
   def index
     @actors = Actor.all
@@ -44,5 +43,10 @@ def destroy
     @actor.destroy
     redirect_to(actors_url)
   end
+
+  def add_role
+    @actor = Actor.find(params[:id])
+    @movies = Movie.all
+  end
 end
 

app/controllers/movies_controller.rb

@@ -1,5 +1,4 @@
 class MoviesController < ApplicationController
-  around_filter Neo4j::Rails::Transaction, :only => [:edit, :update, :destroy, :create]
 
   def index
     @movies = Movie.all
@@ -44,5 +43,10 @@ def destroy
     @movie.destroy
     redirect_to(movies_url)
   end
+
+  def add_role
+    @movie = Movie.find(params[:id])
+    @actors = Actor.all
+  end
 end
 

app/controllers/roles_controller.rb

@@ -0,0 +1,20 @@
+class RolesController < ApplicationController
+
+  def show
+    @role = Role.find(params[:id])
+  end
+
+  def new
+    @movie = Movie.find(params[:movie_id])
+    @actor = Actor.find(params[:actor_id])
+    @role = Role.new
+  end
+
+  def create
+    @movie = Movie.find(params[:movie_id])
+    @actor = Actor.find(params[:actor_id])
+    @role = @actor.roles_rels.connect(@movie, params[:role])
+    @role.save
+    redirect_to role_path(@role.id)
+  end
+end

app/models/role.rb

@@ -1,3 +1,13 @@
 class Role < Neo4j::Rails::Relationship
   property :as
+
+  # this is necessary to be able to make forms with the form_for helper
+  def to_key
+    persisted? ? [id] : nil
+  end
+
+  # this is for the routing helpers
+  def to_param
+    persisted? ? neo_id.to_s : nil
+  end
 end

app/views/actors/add_role.html.erb

@@ -0,0 +1,6 @@
+<h2>New Role for <%= @actor.name %></h2>
+<div><%= @actor.name %> acted in...</div>
+<% @movies.each do |movie| %>
+  <div><%= link_to movie.title, roles_path(@actor, movie) %></div>
+<% end %>
+

app/views/actors/show.html.erb

@@ -20,7 +20,9 @@
 <table>
   <% @actor.roles_rels.each do |r| %>
     <tr>
-      <td><%= sanitize r.as %> in <%= link_to(sanitize(r.end_node.title), movie_path(r.end_node)) %>
+      <td><%= link_to r.as, role_path(r) %> in <%= link_to(r.end_node.title, movie_path(r.end_node)) %>
     </tr>
   <% end %>
 </table>
+
+<%= link_to 'New Role', add_role_actor_path(@actor) %>

app/views/movies/add_role.html.erb

@@ -0,0 +1,4 @@
+<h2>Add an Actor for <i><%= @movie.title %></i></h2>
+<% @actors.each do |actor| %>
+  <div><%= link_to actor.name, new_role_path(actor, @movie) %></div>
+<% end %>

app/views/movies/show.html.erb

@@ -23,3 +23,5 @@
     </tr>
   <% end %>
 </table>
+
+<%= link_to 'New Role', add_role_movie_path(@movie) %>

app/views/roles/_form.html.erb

@@ -0,0 +1,20 @@
+<%= form_for(@role) do |f| %>
+  <% if @role.errors.any? %>
+    <div id="error_explanation">
+      <h2><%= pluralize(@actor.errors.count, "error") %> prohibited this actor from being saved:</h2>
+
+      <ul>
+      <% @role.errors.full_messages.each do |msg| %>
+        <li><%= msg %></li>
+      <% end %>
+      </ul>
+    </div>
+  <% end %>
+  
+  <%= f.text_field :as %>
+
+  <div class="actions">
+    <%= f.submit %>
+  </div>
+
+<% end %>

app/views/roles/new.html.erb

@@ -0,0 +1,3 @@
+<h2>New Role</h2>
+<div><%= @actor.name %> acted in <i><%= @movie.title %></i> as...</div>
+<%= render "form" %>