DEV: Add local_dates post custom field

plugins/discourse-local-dates/lib/discourse_local_dates/engine.rb

@@ -1,6 +1,4 @@
 module ::DiscourseLocalDates
-  PLUGIN_NAME = "discourse-local-dates"
-
   class Engine < ::Rails::Engine
     engine_name DiscourseLocalDates::PLUGIN_NAME
     isolate_namespace DiscourseLocalDates

plugins/discourse-local-dates/plugin.rb

@@ -12,6 +12,42 @@ register_asset "moment-timezone.js", :vendored_core_pretty_text
 enabled_site_setting :discourse_local_dates_enabled
 
 after_initialize do
+  module ::DiscourseLocalDates
+    PLUGIN_NAME ||= "discourse-local-dates".freeze
+    POST_CUSTOM_FIELD ||= "local_dates".freeze
+  end
+
+  [
+    "../lib/discourse_local_dates/engine.rb",
+  ].each { |path| load File.expand_path(path, __FILE__) }
+
+  register_post_custom_field_type(DiscourseLocalDates::POST_CUSTOM_FIELD, :json)
+
+  on(:post_process_cooked) do |doc, post|
+    dates = doc.css('span.discourse-local-date').map do |cooked_date|
+      date = {}
+      cooked_date.attributes.values.each do |attribute|
+        if attribute.name && ['data-date', 'data-time'].include?(attribute.name)
+          unless attribute.value == 'undefined'
+            date[attribute.name.gsub('data-', '')] = CGI.escapeHTML(attribute.value || "")
+          end
+        end
+      end
+      date
+    end
+
+    if dates.present?
+      post.custom_fields[DiscourseLocalDates::POST_CUSTOM_FIELD] = dates.to_json
+      post.save_custom_fields
+    elsif post.custom_fields[DiscourseLocalDates::POST_CUSTOM_FIELD].present?
+      PostCustomField.where(post_id: post.id, name: DiscourseLocalDates::POST_CUSTOM_FIELD).destroy_all
+    end
+  end
+
+  add_to_class(:post, :local_dates) do
+    custom_fields[DiscourseLocalDates::POST_CUSTOM_FIELD] || []
+  end
+
   on(:reduce_cooked) do |fragment|
     container = fragment.css(".discourse-local-date").first
 
@@ -21,5 +57,3 @@ after_initialize do
     end
   end
 end
-
-load File.expand_path('../lib/discourse_local_dates/engine.rb', __FILE__)