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我怎样才能解决这个问题?您还没有定义的默认连接
File "/usr/local/lib/python2.7/dist-packages/mongoengine/connection.py", line 95, in get_connection
raise ConnectionError(msg)
mongoengine.connection.ConnectionError: You have not defined a default connection
model.py:
from flask.ext.mongoengine import MongoEngine
db = MongoEngine()
class Currencies(db.Document):
# meta = {"db_alias": "currencies"}
name = db.StringField(max_length=40, min_length=3)
def __unicode__(self):
return self.name
MongoEngine配置在app.py:
from models import db
app = Flask(__name__)
app.config['MONGODB_SETTINGS'] = {'DB':'testing'}
db.init_app(app)
views.py:
from models import Currencies
print Currencies.objects.find()
烧瓶管理工作正常。
你能否提供更多的调试信息/堆栈跟踪? – Ross 2013-04-10 12:56:52
问题是你还没有告诉mongoengine要使用哪个数据库或主机。我不知道Flask,但通常你可以简单地说'import mongoengine; mongoengine.connect('testDB',host ='localhost');' – William 2013-04-10 13:24:23