ReferentialLines#show: Render links from ReferentialLineDecorator

Leverage our newly created `ReferentialLineDecorator` to render the
header links, allowing us to use them both here and in the table of
lines on the Referentials#show page.

Used the extended decoration syntax to allow us to specify the
`ReferentialLineDecorator`, otherwise Draper will infer `LineDecorator`,
which is not what we want in this case.

Refs #3479

2 files changed, 14 insertions, 15 deletions

diff --git a/app/controllers/referential_lines_controller.rb b/app/controllers/referential_lines_controller.rb
index fe81bee12..1da64991d 100644
--- a/app/controllers/referential_lines_controller.rb
+++ b/app/controllers/referential_lines_controller.rb
@@ -37,6 +37,14 @@ class ReferentialLinesController < ChouetteController
     )
 
     show! do
+      @line = ReferentialLineDecorator.decorate(
+        @line,
+        context: {
+          referential: referential,
+          current_organisation: current_organisation
+        }
+      )
+
       build_breadcrumb :show
     end
   end
diff --git a/app/views/referential_lines/show.html.slim b/app/views/referential_lines/show.html.slim
index 14e300aa2..34c296932 100644
--- a/app/views/referential_lines/show.html.slim
+++ b/app/views/referential_lines/show.html.slim
@@ -7,21 +7,12 @@
   / Below is secundary actions & optional contents
   .row
     .col-lg-12.text-right.mb-sm
-      = link_to @line.human_attribute_name(:footnotes), referential_line_footnotes_path(@referential, @line), class: 'btn btn-primary'
-      = link_to t('routing_constraint_zones.index.title'), referential_line_routing_constraint_zones_path(@referential, @line), class: 'btn btn-primary'
-
-      - if policy(Chouette::Line).create? && @referential.organisation == current_organisation
-        = link_to t('actions.new'), new_referential_line_path(@referential), class: 'btn btn-primary'
-      - if policy(@line).update?
-        = link_to t('actions.edit'), edit_referential_line_path(@referential, @line), class: 'btn btn-primary'
-      - if policy(@line).destroy?
-        = link_to referential_line_path(@referential, @line), method: :delete, data: {confirm: t('lines.actions.destroy_confirm')}, class: 'btn btn-primary' do
-          span.fa.fa-trash
-          span = t('actions.destroy')
-
-      - if !@line.hub_restricted? || (@line.hub_restricted? && @line.routes.size < 2)
-        - if policy(Chouette::Route).create? && @referential.organisation == current_organisation
-          = link_to t('routes.actions.new'), new_referential_line_route_path(@referential, @line), class: 'btn btn-primary'
+      - @line.action_links.each do |link|
+        = link_to link.href,
+            method: link.method,
+            data: link.data,
+            class: 'btn btn-primary' do
+              = link.content
 
 / PageContent
 .page_content