Revert "数据库操作django化"

This reverts commit d612d14efade74d03a3b19f45c40a9b1d254ee62.
Revert "Revert "数据库操作django化""

This reverts commit f922e1e5adbe628f7d7f3b58e124779cdd6cf491.
Merge remote-tracking branch 'origin/master'