fix20230111

apps/inves_manage/project_manager.py

@@ -77,6 +77,7 @@ def search_project1():
 
     try:
         project_obj = ProjectManagement.query.filter(
+            ProjectManagement.sign_time.notin_(['Null', '']),
             ProjectManagement.project_name.like('%{}%'.format(project_name)) if project_name else text(''),
             ProjectManagement.project_stalker == project_stalker if project_stalker else text(''),
             ProjectManagement.district == district if district else text(''),