Question

I can save a "Node", "Link" but not a "Graph" (see error below). Using pymongo 2.1.1, Django-NoRel, Python 2.7:

from django.db import models
from djangotoolbox.fields import SetField, ListField, EmbeddedModelField

class Graph(models.Model):
    links = ListField(EmbeddedModelField( Link ))

class Link(models.Model):
    parent = EmbeddedModelField( Node )
    child = EmbeddedModelField( Node )

class Node(models.Model):
    extent = SetField() # set of strings e.g. "Gene-Bmp4"
    intent = SetField() # set of strings

纽约总部

n1 = Node(extent=set(["Gene-bmp4"]),intent=set(["Attr1", "Attr2"]))
n2 = Node(extent=set(["Gene-fp4"]),intent=set(["Attr3", "Attr4"]))
link = Link(parent=n1, child=n2)
links = [link]
g = Graph(links=links)
g.save()

产生错误:

/Library/Python/2.7/site- Packages/pymongo-2.1.1-py2.7-macosx-10.7-intel.egg/pymongo/ Collection.py:312: 滚动式战斗机:可装条码——重载on器模块并再次尝试。如果你看不出印瓦文件例外,请见一页。

Exception Type:     InvalidDocument
Exception Value:    Cannot encode object: set([ Attr2 ,  Attr1 ])
Exception Location:     /Library/Python/2.7/site-packages/pymongo-2.1.1-py2.7-macosx-10.7-intel.egg/pymongo/collection.py in insert, line 312

Does anyone has any idea what should I do??

Answer 1

看像对我说的。请在上开放机票。

Answer 2

这里的问题是,你不能把布森定为一类物体,因为布森没有确定类型。

最好的解决办法是,在你去除图表之前,把这套装置封起来。

友情链接