新增：批量删除ids为空删除全部

app/controllers/api/pm/issues_controller.rb

@@ -120,7 +120,11 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
         return render_not_found("ID为#{id}的疑修不存在!")
       end
     end
-    @issues = Issue.where(id: params[:ids], pm_project_id: params[:pm_project_id])
+    if params[:ids].blank? 
+      @issues = Issue.where(pm_project_id: params[:pm_project_id])
+    else
+      @issues = Issue.where(id: params[:ids], pm_project_id: params[:pm_project_id])
+    end
   end