Add TakePartController

- add view and helpers
- convert test suite to RSpec on move
- add take_part translation keys used in title_helper to formats
  section in localisation files (in government-frontend this
  was in content_item.schema_name.*)
- note that we explicitly remove the content-bottom-margin div
  class that was immediately inside the 2/3rds column. This is
  a style used in a handful of government-frontend document
  types which (on review with frontend developers) does not
  really fix the problem it's trying to fix (insufficient bottom
  margin on some tablet-sized devices). This has been captured
  as alphagov/govuk_publishing_components#4220
  to be fixed properly in the components gem.

Commit audit trail:
- app/views/take_part/show.html.erb alphagov/government-frontend@e858440
- app/helpers/machine_readable_metadata_helper.rb alphagov/government-frontend@5fb924e
- app/helpers/title_helper.rb alphagov/government-frontend@08db76d
- spec/system/take_part_spec.rb alphagov/government-frontend@6ecd50c

app/controllers/take_part_controller.rb

@@ -0,0 +1,5 @@
+class TakePartController < ContentItemsController
+  def content_item_slug
+    request.path
+  end
+end

app/helpers/machine_readable_metadata_helper.rb

@@ -0,0 +1,6 @@
+module MachineReadableMetadataHelper
+  def machine_readable_metadata(content_item, args)
+    locals = { content_item: content_item.to_h }.merge(args)
+    render("govuk_publishing_components/components/machine_readable_metadata", locals)
+  end
+end

app/helpers/title_helper.rb

@@ -0,0 +1,10 @@
+module TitleHelper
+  def title_and_context(title, document_type)
+    {
+      title:,
+      context: I18n.t("formats.#{document_type}", count: 1),
+      context_locale: t_locale_fallback("formats.#{document_type}", count: 1),
+      average_title_length: "long",
+    }
+  end
+end

app/views/take_part/show.html.erb

@@ -0,0 +1,37 @@
+<% content_for :title do %>
+  <%= @content_item.title %> - GOV.UK
+<% end %>
+
+<% content_for :extra_headers do %>
+  <%= machine_readable_metadata(@content_item, schema: :article) %>
+  <meta name="description" content="<%= strip_tags(@content_item.description) %>">
+<% end %>
+
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds">
+    <%= render 'govuk_publishing_components/components/title', title_and_context(@content_item.title, @content_item.document_type).except(:average_title_length) %>
+    <%= render 'govuk_publishing_components/components/lead_paragraph', text: @content_item.description %>
+  </div>
+
+  <%= render 'shared/translations' %>
+</div>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds">
+    <%= render 'components/figure',
+    src: @content_item.image["url"],
+    alt: @content_item.image["alt_text"],
+    credit: @content_item.image["credit"],
+    caption: @content_item.image["caption"] if @content_item.image %>
+
+    <%= render "govuk_publishing_components/components/govspeak", {
+      direction: page_text_direction
+    } do %>
+    <%= raw(@content_item.body) %>
+    <% end %>
+  </div>
+  <%= render 'shared/sidebar_navigation' %>
+</div>
+
+<%= render 'shared/footer_navigation' %>

config/locales/cy.yml

@@ -747,6 +747,13 @@ cy:
       start_again: Dechrau eto
       your_answers: Eich atebion
     start_now: Dechrau nawr
+    take_part:
+      few:
+      many:
+      one: Cymryd rhan
+      other: Cymryd rhan
+      two:
+      zero:
     transaction:
       before_you_start: Cyn i chi ddechrau
       more_information: Rhagor o wybodaeth

config/locales/en.yml

@@ -455,6 +455,9 @@ en:
       start_again: Start again
       your_answers: Your answers
     start_now: Start now
+    take_part:
+      one: Take part
+      other: Take part
     transaction:
       before_you_start: Before you start
       more_information: More information

config/routes.rb

@@ -70,8 +70,14 @@
   # Media previews
   get "/media/:id/:filename/preview", to: "csv_preview#show", filename: /[^\/]+/
 
-  # Placeholder for attachments being virus-scanned
-  get "/government/placeholder", to: "placeholder#show"
+  scope "/government" do
+    # Placeholder for attachments being virus-scanned
+    get "/placeholder", to: "placeholder#show"
+
+    scope "/get-involved" do
+      get "/take-part/:slug", to: "take_part#show"
+    end
+  end
 
   # Simple Smart Answer pages
   constraints FormatRoutingConstraint.new("simple_smart_answer") do

spec/system/take_part_spec.rb

@@ -0,0 +1,24 @@
+RSpec.describe "TakePart" do
+  before do
+    content_store_has_example_item("/government/get-involved/take-part/tp1", schema: :take_part)
+  end
+
+  context "/government/get-involved/take-part/:slug" do
+    it "displays the take_part page" do
+      visit "/government/get-involved/take-part/tp1"
+
+      expect(page).to have_title("Become a councillor - GOV.UK")
+
+      expect(page).to have_css("h1", text: "Become a councillor")
+      expect(page).to have_text("All councils are led by democratically elected councillors who set the vision and direction, and represent their local community.")
+
+      assert page.has_text?("There are roughly 20,000 local councillors in England. Councillors are elected to the local council to represent their own local community, so they must either live or work in the area.")
+    end
+
+    it "does not display a single page notification button" do
+      visit "/government/get-involved/take-part/tp1"
+
+      expect(page).not_to have_css(".gem-c-single-page-notification-button")
+    end
+  end
+end