ValueError异常：值过多在Django模型解开

Question

Test.py

这些文件用于测试memepost应用程序内的一切。

from django.test import TestCase 
from memepost.models import memepost, memepostForm 
from datetime import date 
import logging 

logging.basicConfig(level=logging.INFO) 
logger = logging.getLogger(__name__) 

class memepostTestCase(TestCase): 
    def setUp(self): 
     memepost.objects.create(title="foo", 
      model_pic="/site_media/media/pic_folder/casual_headshot.jpg", 
      date=date(2017, 05, 14)) 
     memepost.objects.create(title="bar", 
      date=date(2017,05, 1)) 

    def test_memepost_enters_database(self): 
     foo = memepost.objects.get("foo") 
     bar = memepost.objects.get("bar") 
     self.assertEqual(foo.date, "6/15/17") 
     logger.debug("foo date is equal to %s", foo.date) 
     self.assertEqual(bar.model_pic, "no-img.jpg") 
     logger.debug("bar is equal to %s", bar.model_pic) 

models.py

这个文件用来将计划在我的数据库中创建模因。

from __future__ import unicode_literals 
from django.forms import ModelForm 
from django.db import models 

# Create your models here. 
class memepost(models.Model): 
    title = models.CharField(max_length=140) 
    model_pic = models.ImageField(upload_to='pic_folder/', default='pic_folder/no-img.jpg') 
    date = models.DateTimeField() 

    def __unicode__(self): 
     return self.title 

class memepostForm(ModelForm): 
    class Meta: 
     model = memepost 
     fields = ["title", "model_pic", "date"] 

错误

好了，所以我得到这样的警告，但我认为这个问题有一些与标题paramater做到，因为我调用由标题get函数。我希望我很清楚。

WARNING:py.warnings:/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py:1393: 
RuntimeWarning: DateTimeField memepost.date received a naive datetime (2017-05-01 00:00:00) while time zone support is active. 
      RuntimeWarning) 

====================================================================== 
ERROR: test_memepost_enters_database (memepost.tests.memepostTestCase) 
---------------------------------------------------------------------- 
Traceback (most recent call last): 
    File "/home/ubuntu/workspace/mysite/memepost/tests.py", line 20, in test_memepost_enters_database 
    foo = memepost.objects.get("foo") 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/manager.py", line 122, in manager_method 
    return getattr(self.get_queryset(), name)(*args, **kwargs) 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/query.py", line 378, in get 
    clone = self.filter(*args, **kwargs) 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/query.py", line 790, in filter 
    return self._filter_or_exclude(False, *args, **kwargs) 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/query.py", line 808, in _filter_or_exclude 
    clone.query.add_q(Q(*args, **kwargs)) 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1243, in add_q 
    clause, _ = self._add_q(q_object, self.used_aliases) 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1269, in _add_q 
    allow_joins=allow_joins, split_subq=split_subq, 
    File "/home/ubuntu/workspace/mysiteenv/local/lib/python2.7/site-packages/django/db/models/sql/query.py", line 1146, in build_filter 
    arg, value = filter_expr 
ValueError: too many values to unpack 

---------------------------------------------------------------------- 
Ran 1 test in 0.007s 

Answer 1

你是不是为get管理方法提供关键字参数

def test_memepost_enters_database(self): 
    foo = memepost.objects.get(title="foo") 
    bar = memepost.objects.get(title="bar") 
    ...