修复：项目查询标签未返回全部

app/models/concerns/matchable.rb

@@ -6,8 +6,8 @@ module Matchable
     scope :with_project_language, ->(language_id) { where(project_language_id: language_id) unless language_id.blank? }
     scope :with_project_type,     ->(project_type) { where(project_type: project_type) if Project.project_types.include?(project_type) }
     scope :by_name_or_identifier, ->(search) { where("name like :search or identifier LIKE :search", :search => "%#{search.split(" ").join('|')}%") unless search.blank? }
-    scope :with_project_topic, ->(topic_id) {joins(:project_topics).where(project_topics: {id: topic_id}) unless topic_id.blank?}
-    scope :with_project_topic_name, ->(topic_name) {joins(:project_topics).where(project_topics: {name: topic_name}) unless topic_name.blank?}
+    scope :with_project_topic, ->(topic_id) {left_outer_joins(:project_topics).where(project_topics: {id: topic_id}) unless topic_id.blank?}
+    scope :with_project_topic_name, ->(topic_name) {left_outer_joins(:project_topics).where(project_topics: {name: topic_name}) unless topic_name.blank?}
   end
 
 end