Merge pull request '修复 pm project statistics 问题' (#263) from KingChan/forgeplus:pm_project_develop into pm_project_develop

app/controllers/api/pm/projects_controller.rb

@@ -56,9 +56,9 @@ class Api::Pm::ProjectsController < Api::Pm::BaseController
       }
     end
     open_data = {
-      "1": type_status_data[1][1] + type_status_data[1][2],
-      "2": type_status_data[2][1] + type_status_data[2][2],
-      "3": type_status_data[3][1] + type_status_data[3][2],
+      "1": type_status_data[1][1].to_i + type_status_data[1][2].to_i,
+      "2": type_status_data[2][1].to_i + type_status_data[2][2].to_i,
+      "3": type_status_data[3][1].to_i + type_status_data[3][2].to_i,
     }
     data = {
       pie_chart: type_count_data,