以 10 为底的 int() 的 django 无效文字 get_prep_value
django invalid literal for int() with base 10 get_prep_value
我 运行 无法解决 int() 的无效文字问题。
它最初是有效的，但后来我改变了一些东西，现在我遇到了这个问题。我已经从头开始设置项目并再次从头开始设置数据库，但它也没有帮助。
这是我的代码：
models.py
from django.db import models
# Create your models here.
class Zone(models.Model):
zone_name = models.CharField(max_length = 10)
zone_number = models.CharField(max_length = 10)
class Meta:
ordering = ('zone_name',)
def __unicode__(self):
return self.zone_name
class Stage(models.Model):
stage_number = models.CharField(max_length = 10)
stage_name = models.CharField(max_length = 10)
zones = models.ManyToManyField(Zone, through='ZoneStage')
class Meta:
ordering = ('stage_number',)
def __unicode__(self):
return self.stage_number
class ZoneStage(models.Model):
zone = models.ForeignKey(Zone)
stage = models.ForeignKey(Stage)
value = models.PositiveSmallIntegerField(default=0)
class Meta:
ordering = ('zone',)
def __unicode__(self):
return '%s %s' % (self.zone, self.stage)
views.py
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from models import Zone, Stage, ZoneStage
#from models import SubStage, ZoneSubStage
class IndexView(generic.ListView):
template_name = 'autostages/index.html'
context_object_name = 'stages'
queryset = Stage.objects.order_by('stage_number')[:12]
def get_context_data(self, **kwargs):
context = super(IndexView, self).get_context_data(**kwargs)
context['zones'] = Zone.objects.all()
context['zone_stages'] = ZoneStage.objects.all()
# context['substages'] = SubStage.objects.all()
# And so on for more models
return context
class DetailView(generic.DetailView):
template_name = 'autostages/detail.html'
context_object_name = 'stages'
queryset = Stage.objects.all()
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context['zones'] = Zone.objects.all()
# context['zone_substages'] = ZoneSubStage.objects.all()
# context['substages'] = SubStage.objects.all()
# And so on for more models
return context
urls.py
from django.conf.urls import url
from . import views
urlpatterns = [
url(r'^$', views.IndexView.as_view(), name='stage_list'),
url(r'^(?P<pk>\w+)/$', views.DetailView.as_view(), name='detail'),
]
index.html
<table border="1">
<tr>
<td style="width:40px" >
<td style="width:100px">
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">{{ zone.zone_name }}</td>
{% endfor %}
</tr>
{% for stage in stages %}
<tr>
<td style="width:40px"><a href="{% url 'autostages:detail' stage %}">{{ stage.stage_number }}
</a></td>
<td style="width:40px">{{ stage.stage_name }}</td>
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">
{% for zs in stage.zonestage_set.all %}
{% if zs.zone == zone %} {{ stage.value}}{% endif %}
<!--{% if zs.zone == zone %} {{ zs.value}}{% endif %}-->
{% endfor %}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
detail.html
<table border="1">
<tr>
<td style="width:40px"></td>
<td style="width:100px"></td>
{% for zone in zones|dictsort:"zone_name" %}
{{ zone }}
<td style="width:40px" align="center">{{ zone.zone_name }}</td>
{% endfor %}
</tr>
<td style="width:40px">{{ stages }}</td>
<td style="width:100px">{{ stages.stage_name }}</td>
{% for substage in stages.substage_set.all %}
<tr>
<td style="width:40px"></td>
<td style="width:40px">{{ substage.sub_name }}</td>
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">
{% for zss in substage.zonesubstage_set.all %}
{% if zss.zone == zone %} {{ zss.value}}{% endif %}
{% endfor %}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
Django 回溯：
Environment:
Request Method: GET
Request URL: http://localhost:8000/autostages/S1/
Django Version: 1.8.4
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'autostages')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware')
Traceback:
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
132. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/base.py" in view
71. return self.dispatch(request, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
89. return handler(request, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/detail.py" in get
115. self.object = self.get_object()
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/detail.py" in get_object
38. queryset = queryset.filter(pk=pk)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/query.py" in filter
679. return self._filter_or_exclude(False, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/query.py" in _filter_or_exclude
697. clone.query.add_q(Q(*args, **kwargs))
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in add_q
1309. clause, require_inner = self._add_q(where_part, self.used_aliases)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in _add_q
1337. allow_joins=allow_joins, split_subq=split_subq,
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_filter
1208. condition = self.build_lookup(lookups, col, value)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_lookup
1101. return final_lookup(lhs, rhs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/lookups.py" in __init__
101. self.rhs = self.get_prep_lookup()
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/lookups.py" in get_prep_lookup
139. return self.lhs.output_field.get_prep_lookup(self.lookup_name, self.rhs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_lookup
727. return self.get_prep_value(value)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_value
985. return int(value)
Exception Type: ValueError at /autostages/S1/
Exception Value: invalid literal for int() with base 10: 'S1'
通常情况下，当您尝试使用 int 字段模型添加或读取数据时会遇到此问题，请验证值字段仅接收正的小 int
我认为您在 index.html 页面的 url 模板标签中错误地传递了 stage 对象而不是 stage.pk 作为参数。
尝试更改
{% url 'autostages:detail' stage %}
到
{% url 'autostages:detail' stage.pk %}
实际上，当您将 stage 对象作为参数传递时，您在模型中定义的它的表示即 stage_number 被用作参数的值。 S1 不是整数导致错误。
我 运行 无法解决 int() 的无效文字问题。
它最初是有效的，但后来我改变了一些东西，现在我遇到了这个问题。我已经从头开始设置项目并再次从头开始设置数据库，但它也没有帮助。
这是我的代码：
models.py
from django.db import models
# Create your models here.
class Zone(models.Model):
zone_name = models.CharField(max_length = 10)
zone_number = models.CharField(max_length = 10)
class Meta:
ordering = ('zone_name',)
def __unicode__(self):
return self.zone_name
class Stage(models.Model):
stage_number = models.CharField(max_length = 10)
stage_name = models.CharField(max_length = 10)
zones = models.ManyToManyField(Zone, through='ZoneStage')
class Meta:
ordering = ('stage_number',)
def __unicode__(self):
return self.stage_number
class ZoneStage(models.Model):
zone = models.ForeignKey(Zone)
stage = models.ForeignKey(Stage)
value = models.PositiveSmallIntegerField(default=0)
class Meta:
ordering = ('zone',)
def __unicode__(self):
return '%s %s' % (self.zone, self.stage)
views.py
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.views import generic
from models import Zone, Stage, ZoneStage
#from models import SubStage, ZoneSubStage
class IndexView(generic.ListView):
template_name = 'autostages/index.html'
context_object_name = 'stages'
queryset = Stage.objects.order_by('stage_number')[:12]
def get_context_data(self, **kwargs):
context = super(IndexView, self).get_context_data(**kwargs)
context['zones'] = Zone.objects.all()
context['zone_stages'] = ZoneStage.objects.all()
# context['substages'] = SubStage.objects.all()
# And so on for more models
return context
class DetailView(generic.DetailView):
template_name = 'autostages/detail.html'
context_object_name = 'stages'
queryset = Stage.objects.all()
def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
context['zones'] = Zone.objects.all()
# context['zone_substages'] = ZoneSubStage.objects.all()
# context['substages'] = SubStage.objects.all()
# And so on for more models
return context
urls.py
from django.conf.urls import url
from . import views
urlpatterns = [
url(r'^$', views.IndexView.as_view(), name='stage_list'),
url(r'^(?P<pk>\w+)/$', views.DetailView.as_view(), name='detail'),
]
index.html
<table border="1">
<tr>
<td style="width:40px" >
<td style="width:100px">
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">{{ zone.zone_name }}</td>
{% endfor %}
</tr>
{% for stage in stages %}
<tr>
<td style="width:40px"><a href="{% url 'autostages:detail' stage %}">{{ stage.stage_number }}
</a></td>
<td style="width:40px">{{ stage.stage_name }}</td>
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">
{% for zs in stage.zonestage_set.all %}
{% if zs.zone == zone %} {{ stage.value}}{% endif %}
<!--{% if zs.zone == zone %} {{ zs.value}}{% endif %}-->
{% endfor %}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
detail.html
<table border="1">
<tr>
<td style="width:40px"></td>
<td style="width:100px"></td>
{% for zone in zones|dictsort:"zone_name" %}
{{ zone }}
<td style="width:40px" align="center">{{ zone.zone_name }}</td>
{% endfor %}
</tr>
<td style="width:40px">{{ stages }}</td>
<td style="width:100px">{{ stages.stage_name }}</td>
{% for substage in stages.substage_set.all %}
<tr>
<td style="width:40px"></td>
<td style="width:40px">{{ substage.sub_name }}</td>
{% for zone in zones|dictsort:"zone_name" %}
<td style="width:40px" align="center">
{% for zss in substage.zonesubstage_set.all %}
{% if zss.zone == zone %} {{ zss.value}}{% endif %}
{% endfor %}
</td>
{% endfor %}
</tr>
{% endfor %}
</table>
Django 回溯：
Environment:
Request Method: GET
Request URL: http://localhost:8000/autostages/S1/
Django Version: 1.8.4
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'autostages')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'django.middleware.security.SecurityMiddleware')
Traceback:
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
132. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/base.py" in view
71. return self.dispatch(request, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
89. return handler(request, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/detail.py" in get
115. self.object = self.get_object()
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/views/generic/detail.py" in get_object
38. queryset = queryset.filter(pk=pk)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/query.py" in filter
679. return self._filter_or_exclude(False, *args, **kwargs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/query.py" in _filter_or_exclude
697. clone.query.add_q(Q(*args, **kwargs))
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in add_q
1309. clause, require_inner = self._add_q(where_part, self.used_aliases)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in _add_q
1337. allow_joins=allow_joins, split_subq=split_subq,
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_filter
1208. condition = self.build_lookup(lookups, col, value)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/sql/query.py" in build_lookup
1101. return final_lookup(lhs, rhs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/lookups.py" in __init__
101. self.rhs = self.get_prep_lookup()
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/lookups.py" in get_prep_lookup
139. return self.lhs.output_field.get_prep_lookup(self.lookup_name, self.rhs)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_lookup
727. return self.get_prep_value(value)
File "/home/dkr103/Coding/projects/env1/local/lib/python2.7/site-packages/django/db/models/fields/__init__.py" in get_prep_value
985. return int(value)
Exception Type: ValueError at /autostages/S1/
Exception Value: invalid literal for int() with base 10: 'S1'
通常情况下，当您尝试使用 int 字段模型添加或读取数据时会遇到此问题，请验证值字段仅接收正的小 int
我认为您在 index.html 页面的 url 模板标签中错误地传递了 stage 对象而不是 stage.pk 作为参数。
尝试更改
{% url 'autostages:detail' stage %}
到
{% url 'autostages:detail' stage.pk %}
实际上，当您将 stage 对象作为参数传递时，您在模型中定义的它的表示即 stage_number 被用作参数的值。 S1 不是整数导致错误。