fixed 项目优化排序

app/queries/projects/list_query.rb

@@ -17,6 +17,7 @@ class Projects::ListQuery < ApplicationQuery
     sort = params[:sort_by] || "updated_on"
     sort_direction = params[:sort_direction] || "desc"
 
+    collection = optimize_sorting(collection, sort)
     custom_sort(collection, sort, sort_direction)
 
     # scope = scope.reorder("projects.#{sort} #{sort_direction}")
@@ -51,5 +52,20 @@ class Projects::ListQuery < ApplicationQuery
   def by_pinned(items)
     (params[:pinned].present? && params[:category_id].present?) ? items.pinned : items
   end
+
+  # 优化排序
+  def optimize_sorting(relations, sort_by)
+    if sort_by == "updated_on"
+      relations.where("projects.updated_on>'2010-01-01'")
+    elsif sort_by == "created_on"
+      relations.where("projects.created_on>'2010-01-01'")
+    elsif sort_by == "forked_count"
+      relations.where("projects.forked_count>=0")
+    elsif sort_by == "praises_count"
+      relations.where("projects.praises_count>=0")
+    else
+      relations
+    end
+  end
   
 end