From bfc021edf3566982671bd2bd09db3c8667fc756a Mon Sep 17 00:00:00 2001
From: Anton Khorev <tony29@yandex.ru>
Date: Wed, 17 Jan 2024 21:25:07 +0300
Subject: [PATCH] Link to previous/next versions from relation version pages

---
 app/views/old_relations/show.html.erb         | 12 +++++++
 .../old_relations_controller_test.rb          | 34 ++++++++++++++++---
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/app/views/old_relations/show.html.erb b/app/views/old_relations/show.html.erb
index cfa27c1ad..dd52b3833 100644
--- a/app/views/old_relations/show.html.erb
+++ b/app/views/old_relations/show.html.erb
@@ -9,3 +9,15 @@
     <%= link_to t("browse.download_xml"), relation_version_path(*@feature.id) %>
   </div>
 <% end %>
+
+<div class='secondary-actions'>
+  <% if @feature.version > 1 %>
+    <%= link_to "<< #{t('browse.version')} ##{@feature.version - 1}", old_relation_path(@feature.relation_id, @feature.version - 1) %>
+    &middot;
+  <% end %>
+  <%= link_to t("browse.view_history"), relation_history_path(@feature.relation_id) %>
+  <% if @feature.version < @feature.current_relation.version %>
+    &middot;
+    <%= link_to "#{t('browse.version')} ##{@feature.version + 1} >>", old_relation_path(@feature.relation_id, @feature.version + 1) %>
+  <% end %>
+</div>
diff --git a/test/controllers/old_relations_controller_test.rb b/test/controllers/old_relations_controller_test.rb
index 87c4926ef..5b7a67bf0 100644
--- a/test/controllers/old_relations_controller_test.rb
+++ b/test/controllers/old_relations_controller_test.rb
@@ -8,7 +8,7 @@ class OldRelationsControllerTest < ActionDispatch::IntegrationTest
     )
   end
 
-  def test_visible
+  def test_visible_with_one_version
     relation = create(:relation, :with_history)
     get old_relation_path(relation, 1)
     assert_response :success
@@ -17,7 +17,33 @@ class OldRelationsControllerTest < ActionDispatch::IntegrationTest
     assert_select "h4", /^Version/ do
       assert_select "a[href='#{old_relation_path relation, 1}']", :count => 0
     end
-    assert_select "a[href='#{relation_version_path relation, 1}']", :count => 1
+    assert_select ".secondary-actions a[href='#{relation_version_path relation, 1}']", :count => 1
+    assert_select ".secondary-actions a[href='#{relation_history_path relation}']", :count => 1
+  end
+
+  def test_visible_with_two_versions
+    relation = create(:relation, :with_history, :version => 2)
+    get old_relation_path(relation, 1)
+    assert_response :success
+    assert_template "old_relations/show"
+    assert_template :layout => "map"
+    assert_select "h4", /^Version/ do
+      assert_select "a[href='#{old_relation_path relation, 1}']", :count => 0
+    end
+    assert_select ".secondary-actions a[href='#{relation_version_path relation, 1}']", :count => 1
+    assert_select ".secondary-actions a[href='#{relation_history_path relation}']", :count => 1
+    assert_select ".secondary-actions a[href='#{old_relation_path relation, 2}']", :count => 1
+
+    get old_relation_path(relation, 2)
+    assert_response :success
+    assert_template "old_relations/show"
+    assert_template :layout => "map"
+    assert_select "h4", /^Version/ do
+      assert_select "a[href='#{old_relation_path relation, 2}']", :count => 0
+    end
+    assert_select ".secondary-actions a[href='#{relation_version_path relation, 2}']", :count => 1
+    assert_select ".secondary-actions a[href='#{relation_history_path relation}']", :count => 1
+    assert_select ".secondary-actions a[href='#{old_relation_path relation, 1}']", :count => 1
   end
 
   def test_visible_with_members
@@ -37,8 +63,8 @@ class OldRelationsControllerTest < ActionDispatch::IntegrationTest
     assert_response :success
     assert_template "old_relations/show"
     assert_template :layout => "map"
-    assert_select "a[href='#{old_relation_path relation, 1}']", :count => 0
-    assert_select "a[href='#{relation_version_path relation, 1}']", :count => 0
+    assert_select ".secondary-actions a[href='#{old_relation_path relation, 1}']", :count => 0
+    assert_select ".secondary-actions a[href='#{relation_version_path relation, 1}']", :count => 0
   end
 
   def test_not_found
-- 
2.45.1