Django终端打印SQL语句
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'handlers': {
'console':{
'level':'DEBUG',
'class':'logging.StreamHandler',
},
},
'loggers': {
'django.db.backends': {
'handlers': ['console'],
'propagate': True,
'level':'DEBUG',
},
}
}
在Python脚本中调用Django环境
import os
if __name__ == '__main__':
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "BMS.settings")
import django
django.setup()
from app01 import models
books = models.Book.objects.all()
print(books)
class Record(models.Model):
pass
class Meta:
db_table="Record"
在djanggo中自定义char类型
# 自定义char类型
class FixCharField(models.Field):
def __init__(self, max_length, *args, **kwargs):
self.max_length = max_length
super().__init__(max_length=self.max_length,*args, **kwargs)
def db_type(self, connection):
return 'char(%s)' % self.max_length