Question

在以下代码中遇到属性错误：

from mongoengine import *
import datetime
from bson import ObjectId 



class Doc_1(EmbeddedDocument):
    criteria_id = ObjectIdField(default=ObjectId)
    field_name = StringField()
    field_value =DynamicField()
    dominant = BooleanField()

class Doc_2(Document):
    created_date = DateTimeField(default=datetime.datetime.now)
    type = StringField(required=True)
    state = StringField(required=True)

d1 = Doc_1()
d1.field_name = "state"
d1.field_value = [a, b, c, d, e]
d1.save()

d2 = Doc_2()
d2.type = "Demo"
d2.state = "c"
d2.save()

def field_match(Doc_1, Doc_2):
    x = Doc_1.field_name
    y = Doc_1.field_value
    if Doc_2.x in y:
        print("Yes")

field_match(Doc_1, Doc_2)

AttributeError：'Doc_2'对象没有属性'x'

如何在mongoengine的函数中正确使用变量？

Answer 1

答案如此简单我有点尴尬......

该函数应该使用变量而不是＆＃39;。＆＃39;

def field_match(Doc_1, Doc_2):
x = Doc_1.field_name
y = Doc_1.field_value
if Doc_2[x] in y:
    print("Yes")

在函数中引用字段时的mongoengine属性错误 - python

1 个答案: