我正在python上的任何地方部署在线教程(Tango with Django)应用程序,但是我在populate_rango脚本方面遇到了问题。我不断得到列名不是唯一的错误与一个漫长的回溯。 谁知道问题出在哪里。帮助需要。应该快速解决问题。 我注意到其他人也有同样的问题,但没有人回答。在
填充_兰戈.py在
import os
def populate():
python_cat = add_cat(name='Python', views=128, likes=64)
add_page(cat=python_cat,
title="Official Python Tutorial",
views=25,
url="http://docs.python.org/2/tutorial/")
add_page(cat=python_cat,
title="How to Think like a Computer Scientist",
views=20,
url="http://www.greenteapress.com/thinkpython/")
add_page(cat=python_cat,
title="Learn Python in 10 minutes",
views=12,
url="http://www.korokithakis.net/tutorials/python/")
django_cat = add_cat(name="Django", views=32, likes=16)
add_page(cat=django_cat,
title="Official Django Tutorial",
views=55,
url="http://djangoproject.com/en/1.5/intro/tutorial01/")
add_page(cat=django_cat,
title="Django Rocks",
views=34,
url="http://www.djangorocks.com/")
add_page(cat=django_cat,
title="How to Tango with Django",
views=49,
url="htttp://www.tangowithdjango.com/")
frame_cat = add_cat(name="Other Frameworks", views=32, likes=16)
add_page(cat=frame_cat,
title="Bottle",
views=78,
url="http://bottlepy.org/docs/dev/")
add_page(cat=frame_cat,
title="Flask",
views=29,
url="http://flask.pocoo.org")
# Print out what we have added to the user.
for c in Category.objects.all():
for p in Page.objects.filter(category=c):
print "- {0} - {1}".format(str(c), str(p))
def add_page(cat, title, url, views=0):
p = Page.objects.get_or_create(category=cat, title=title, url=url, views=views)[0]
return p
def add_cat(name, views, likes):
c = Category.objects.get_or_create(name=name, views=views, likes=likes)[0]
return c
if __name__ == '__main__':
print "Staring Rango population script..."
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django.settings')
from rango.models import Category, Page
populate()
Staring Rango population script...
Traceback (most recent call last):
File "populate_rango.py", line 67, in <module>
populate()
File "populate_rango.py", line 4, in populate
python_cat = add_cat(name='Python', views=128, likes=64)
File "populate_rango.py", line 60, in add_cat
c = Category.objects.get_or_create(name=name, views=views, likes=likes)[0]
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/manager.py", line 154, in get_or_create
return self.get_queryset().get_or_create(**kwargs)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/query.py", line 391, in get_or_create
six.reraise(*exc_info)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/query.py", line 383, in get_or_create
obj.save(force_insert=True, using=self.db)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/base.py", line 545, in save
force_update=force_update, update_fields=update_fields)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/base.py", line 573, in save_base
updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/base.py", line 654, in _save_table
result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/base.py", line 687, in _do_insert
using=using, raw=raw)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/manager.py", line 232, in _insert
return insert_query(self.model, objs, fields, **kwargs)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/query.py", line 1514, in insert_query
return query.get_compiler(using=using).execute_sql(return_id)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 903, in execute_sql
cursor.execute(sql, params)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/backends/util.py", line 69, in execute
return super(CursorDebugWrapper, self).execute(sql, params)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/utils.py", line 99, in __exit__
six.reraise(dj_exc_type, dj_exc_value, traceback)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/backends/util.py", line 53, in execute
return self.cursor.execute(sql, params)
File "/home/timkaboya/.virtualenvs/rango/local/lib/python2.7/site-packages/django/db/backends/sqlite3/base.py", line 451, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: column name is not unique
好吧,我也遇到了同样的问题,这里是我的解决方案:主要问题是
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django_project.settings')
,我的项目目录名为tango_with_django
。不知道这是否意味着,但我也在导入os
之后放置了这些行(不要忘了从底部删除os.environ.
)所以看起来像这样:
import os
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'tango_with_django.settings')
import django
django.setup()
from rango.models import Category, Page
我能够通过交互式控制台(python)模拟这个问题管理.py外壳):
由于类别模型中的名称属性是唯一的:
^{pr2}$。。。简而言之,我试图在名称列中添加“Test”,但该值已经存在。在
更新:
确认解决方案:
数据库中的值确实是重复的。在
祝你好运!在
根据我的记忆,我有同样的问题,我发现我的旧项目,请检查以下脚本:
相关问题 更多 >
编程相关推荐