feat(metadata): Add Logidze support to MetadataTemplates for change t…

…racking

db/migrate/20250107194839_add_logidze_to_metadata_templates.rb

@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# Migration to add Logidze to MetadataTemplates table
+class AddLogidzeToMetadataTemplates < ActiveRecord::Migration[7.2]
+  def change
+    add_column :metadata_templates, :log_data, :jsonb
+
+    reversible do |dir|
+      dir.up do
+        create_trigger :logidze_on_metadata_templates, on: :metadata_templates
+      end
+
+      dir.down do
+        execute <<~SQL.squish
+          DROP TRIGGER IF EXISTS "logidze_on_metadata_template" on "metadata_templates";
+        SQL
+      end
+    end
+  end
+end

db/triggers/logidze_on_metadata_templates_v01.sql

@@ -0,0 +1,6 @@
+CREATE TRIGGER "logidze_on_metadata_templates"
+BEFORE UPDATE OR INSERT ON "metadata_templates" FOR EACH ROW
+WHEN (coalesce(current_setting('logidze.disabled', true), '') <> 'on')
+-- Parameters: history_size_limit (integer), timestamp_column (text), filtered_columns (text[]),
+-- include_columns (boolean), debounce_time_ms (integer)
+EXECUTE PROCEDURE logidze_logger(null, 'updated_at');

test/models/metadata_template_test.rb

@@ -74,13 +74,19 @@ class MetadataTemplateTest < ActiveSupport::TestCase
   #   end
   # end
 
-  # test 'tracks history changes' do
-  #   original_name = @valid_metadata_template.name
-  #   travel 1.minute do
-  #     assert_difference -> { @valid_metadata_template.reload.log_size } do
-  #       @valid_metadata_template.update!(name: 'Updated Name')
-  #     end
-  #   end
-  #   assert_equal original_name, @valid_metadata_template.reload.log_data.versions.first['changes']['name']
-  # end
+  test 'tracks history changes' do
+    @valid_metadata_template.create_logidze_snapshot!
+
+    assert_equal 1, @valid_metadata_template.log_data.version
+    assert_equal 1, @valid_metadata_template.log_data.size
+
+    assert_changes -> { @valid_metadata_template.name }, to: 'Updated Name' do
+      @valid_metadata_template.update(name: 'Updated Name')
+    end
+
+    @valid_metadata_template.create_logidze_snapshot!
+
+    assert_equal 2, @valid_metadata_template.log_data.version
+    assert_equal 2, @valid_metadata_template.log_data.size
+  end
 end