Use AJAX requests to select legislation proposals

Now the interface is more similar to the one in budget investments.

app/controllers/admin/legislation/proposals_controller.rb

@@ -12,7 +12,5 @@ class Admin::Legislation::ProposalsController < Admin::Legislation::BaseControll
   def toggle_selection
     @proposal.toggle :selected
     @proposal.save!
-    redirect_to admin_legislation_process_proposals_path,
-                notice: t('admin.legislation.proposals.update.notice')
   end
 end

app/views/admin/legislation/proposals/_proposals.html.erb

@@ -19,7 +19,7 @@
           <td class="text-center"><%= proposal.id %></td>
           <td><%= proposal.title %></td>
           <td class="text-center"><%= proposal.cached_votes_up %></td>
-          <td><%= render "select_proposal", proposal: proposal %></td>
+          <td class="select"><%= render "select_proposal", proposal: proposal %></td>
         </tr>
       <% end %>
     </tbody>

app/views/admin/legislation/proposals/_select_proposal.html.erb

@@ -8,5 +8,6 @@
 
 <%= link_to button_text,
             toggle_selection_admin_legislation_process_proposal_path(proposal.process, proposal),
+            remote: true,
             method: :patch,
             class: clas %>

app/views/admin/legislation/proposals/toggle_selection.js.erb

@@ -0,0 +1 @@
+$("#<%= dom_id(@proposal) %> .select").html('<%= j render("select_proposal", proposal: @proposal) %>');

config/locales/en/admin.yml

@@ -422,9 +422,6 @@ en:
           supports: Supports
           select: Select
           selected: Selected
-        update:
-          notice: 'Proposal updated successfully'
-          error: Proposal couldn't be updated
         form:
           custom_categories: Categories
           custom_categories_description: Categories that users can select creating the proposal.

config/locales/es/admin.yml

@@ -423,9 +423,6 @@ es:
           supports: Apoyos
           select: Seleccionar
           selected: Seleccionado
-        update:
-          notice: Propuesta actualizada correctamente.
-          error: No se ha podido actualizar la propuesta
         form:
           custom_categories: Categorías
           custom_categories_description: Categorías que el usuario puede seleccionar al crear la propuesta.

spec/features/admin/legislation/proposals_spec.rb

@@ -20,7 +20,7 @@ feature 'Admin legislation processes' do
       end
     end
 
-    scenario 'Selecting legislation proposals' do
+    scenario 'Selecting legislation proposals', :js do
       proposal = create(:legislation_proposal, cached_votes_up: 10)
       visit admin_legislation_process_proposals_path(proposal.legislation_process_id)