Use polymorphic routes to manage cards

We use a different logic to load the card depending on the controller
we're using, and then share the rest of the code. This way we simplify
the code a bit, since we don't have to check for the page_id parameter.

app/controllers/admin/site_customization/cards_controller.rb

@@ -1,7 +1,14 @@
 class Admin::SiteCustomization::CardsController < Admin::SiteCustomization::BaseController
+  include Admin::Widget::CardsActions
   load_and_authorize_resource :page, class: "::SiteCustomization::Page"
   load_and_authorize_resource :card, through: :page, class: "Widget::Card"
 
   def index
   end
+
+  private
+
+    def index_path
+      admin_site_customization_page_widget_cards_path(@page)
+    end
 end

app/controllers/admin/widget/cards_controller.rb

@@ -1,70 +1,10 @@
 class Admin::Widget::CardsController < Admin::BaseController
-  include Translatable
-  include ImageAttributes
-
-  def new
-    if header_card?
-      @card = ::Widget::Card.new(header: header_card?)
-    else
-      @card = ::Widget::Card.new(site_customization_page_id: params[:page_id])
-    end
-  end
-
-  def create
-    @card = ::Widget::Card.new(card_params)
-    if @card.save
-      redirect_to_customization_page_cards_or_homepage
-    else
-      render :new
-    end
-  end
-
-  def edit
-    @card = ::Widget::Card.find(params[:id])
-  end
-
-  def update
-    @card = ::Widget::Card.find(params[:id])
-    if @card.update(card_params)
-      redirect_to_customization_page_cards_or_homepage
-    else
-      render :edit
-    end
-  end
-
-  def destroy
-    @card = ::Widget::Card.find(params[:id])
-    @card.destroy!
-
-    redirect_to_customization_page_cards_or_homepage
-  end
+  include Admin::Widget::CardsActions
+  load_and_authorize_resource :card, class: "Widget::Card"
 
   private
 
-    def card_params
-      params.require(:widget_card).permit(
-        :link_url, :button_text, :button_url, :alignment, :header, :site_customization_page_id,
-        :columns,
-        translation_params(Widget::Card),
-        image_attributes: image_attributes
-      )
-    end
-
-    def header_card?
-      params[:header_card].present?
-    end
-
-    def redirect_to_customization_page_cards_or_homepage
-      notice = t("admin.site_customization.pages.cards.#{params[:action]}.notice")
-
-      if @card.site_customization_page_id
-        redirect_to admin_site_customization_page_cards_path(page), notice: notice
-      else
-        redirect_to admin_homepage_path, notice: notice
-      end
-    end
-
-    def page
-      ::SiteCustomization::Page.find(@card.site_customization_page_id)
+    def index_path
+      admin_homepage_path
     end
 end

app/controllers/concerns/admin/widget/cards_actions.rb

@@ -0,0 +1,59 @@
+module Admin::Widget::CardsActions
+  extend ActiveSupport::Concern
+  include Translatable
+  include ImageAttributes
+
+  def new
+    @card.header = header_card?
+    render template: "#{cards_view_path}/new"
+  end
+
+  def create
+    if @card.save
+      redirect_to_index
+    else
+      render template: "#{cards_view_path}/new"
+    end
+  end
+
+  def edit
+    render template: "#{cards_view_path}/edit"
+  end
+
+  def update
+    if @card.update(card_params)
+      redirect_to_index
+    else
+      render template: "#{cards_view_path}/edit"
+    end
+  end
+
+  def destroy
+    @card.destroy!
+    redirect_to_index
+  end
+
+  private
+
+    def card_params
+      params.require(:widget_card).permit(
+        :link_url, :button_text, :button_url, :alignment, :header, :columns,
+        translation_params(Widget::Card),
+        image_attributes: image_attributes
+      )
+    end
+
+    def header_card?
+      params[:header_card].present?
+    end
+
+    def redirect_to_index
+      notice = t("admin.site_customization.pages.cards.#{params[:action]}.notice")
+
+      redirect_to index_path, notice: notice
+    end
+
+    def cards_view_path
+      "admin/widget/cards"
+    end
+end

app/views/admin/site_customization/cards/_card.html.erb

@@ -17,8 +17,6 @@
     <% end %>
   </td>
   <td>
-    <%= render Admin::TableActionsComponent.new(card,
-      edit_path: edit_admin_widget_card_path(card, page_id: params[:page_id])
-    ) %>
+    <%= render Admin::TableActionsComponent.new(card) %>
   </td>
 </tr>

app/views/admin/site_customization/cards/index.html.erb

@@ -8,7 +8,7 @@
 
   <div class="float-right">
     <%= link_to t("admin.site_customization.pages.cards.create_card"),
-        new_admin_widget_card_path(page_id: params[:page_id]), class: "button" %>
+                new_admin_site_customization_page_widget_card_path(@page), class: "button" %>
   </div>
 
   <% if @cards.present? %>

app/views/admin/site_customization/pages/index.html.erb

@@ -30,7 +30,7 @@
         <td>
           <%= render Admin::TableActionsComponent.new(page) do |actions| %>
             <%= actions.link_to t("admin.site_customization.pages.page.see_cards"),
-                                admin_site_customization_page_cards_path(page),
+                                admin_site_customization_page_widget_cards_path(page),
                                 class: "cards-link" %>
 
             <% if page.status == "published" %>

app/views/admin/widget/cards/_form.html.erb

@@ -1,6 +1,6 @@
 <%= render "shared/globalize_locales", resource: @card %>
 
-<%= translatable_form_for [:admin, @card] do |f| %>
+<%= translatable_form_for [:admin, @page, @card] do |f| %>
   <%= render "shared/errors", resource: @card %>
 
   <div class="row">
@@ -42,7 +42,6 @@
   </div>
 
   <%= f.hidden_field :header, value: @card.header? %>
-  <%= f.hidden_field :site_customization_page_id, value: @card.site_customization_page_id %>
   <div class="row">
     <div class="image-form">
       <div class="image small-12 column">

app/views/admin/widget/cards/edit.html.erb

@@ -6,4 +6,4 @@
   <% end %>
 </h2>
 
-<%= render "form" %>
+<%= render "admin/widget/cards/form" %>

app/views/admin/widget/cards/new.html.erb

@@ -6,4 +6,4 @@
   <% end %>
 </h2>
 
-<%= render "form" %>
+<%= render "admin/widget/cards/form" %>

config/routes/admin.rb

@@ -227,7 +227,7 @@ namespace :admin do
 
   namespace :site_customization do
     resources :pages, except: [:show] do
-      resources :cards, only: [:index]
+      resources :cards, except: [:show], as: :widget_cards
     end
     resources :images, only: [:index, :update, :destroy]
     resources :content_blocks, except: [:show]
@@ -270,6 +270,10 @@ resolve "Audit" do |audit|
   [*resource_hierarchy_for(audit.associated || audit.auditable), audit]
 end
 
+resolve "Widget::Card" do |card, options|
+  [*resource_hierarchy_for(card.page), card]
+end
+
 resolve "Budget::Group" do |group, options|
   [group.budget, :group, options.merge(id: group)]
 end

spec/routing/polymorphic_routes_spec.rb

@@ -164,6 +164,19 @@ describe "Polymorphic routes" do
       expect(admin_polymorphic_path(shift)).to eq(admin_booth_shift_path(booth, shift))
     end
 
+    it "routes widget cards" do
+      card = create(:widget_card)
+
+      expect(admin_polymorphic_path(card)).to eq(admin_widget_card_path(card))
+    end
+
+    it "routes site customization page widget cards" do
+      page = create(:site_customization_page)
+      card = create(:widget_card, page: page)
+
+      expect(admin_polymorphic_path(card)).to eq admin_site_customization_page_widget_card_path(page, card)
+    end
+
     it "supports routes for actions like edit" do
       proposal = create(:proposal)
       milestone = create(:milestone, milestoneable: proposal)

spec/system/admin/widgets/cards_spec.rb

@@ -163,7 +163,7 @@ describe "Cards", :admin do
         fill_in "Title", with: "Card for a custom page"
         click_button "Create card"
 
-        expect(page).to have_current_path admin_site_customization_page_cards_path(custom_page)
+        expect(page).to have_current_path admin_site_customization_page_widget_cards_path(custom_page)
         expect(page).to have_content "Card for a custom page"
       end
 
@@ -199,7 +199,7 @@ describe "Cards", :admin do
       scenario "Edit", :js do
         create(:widget_card, page: custom_page, title: "Original title")
 
-        visit admin_site_customization_page_cards_path(custom_page)
+        visit admin_site_customization_page_widget_cards_path(custom_page)
 
         expect(page).to have_content("Original title")
 
@@ -211,7 +211,7 @@ describe "Cards", :admin do
 
         click_button "Save card"
 
-        expect(page).to have_current_path admin_site_customization_page_cards_path(custom_page)
+        expect(page).to have_current_path admin_site_customization_page_widget_cards_path(custom_page)
         expect(page).to have_content "Updated title"
         expect(page).not_to have_content "Original title"
       end
@@ -219,7 +219,7 @@ describe "Cards", :admin do
       scenario "Destroy", :js do
         create(:widget_card, page: custom_page, title: "Card title")
 
-        visit admin_site_customization_page_cards_path(custom_page)
+        visit admin_site_customization_page_widget_cards_path(custom_page)
 
         expect(page).to have_content("Card title")
 
@@ -227,7 +227,7 @@ describe "Cards", :admin do
           click_link "Delete"
         end
 
-        expect(page).to have_current_path admin_site_customization_page_cards_path(custom_page)
+        expect(page).to have_current_path admin_site_customization_page_widget_cards_path(custom_page)
         expect(page).not_to have_content "Card title"
       end
     end