Django-如何保存()ModelForm';s
我正在尝试保存一个模型表单,但遇到一个错误:Django-如何保存()ModelForm';s,django,django-forms,Django,Django Forms,我正在尝试保存一个模型表单,但遇到一个错误: InternalError at /submeter/anuncio/ current transaction is aborted, commands ignored until end of transaction block 我会尽力解释我在做什么 好的,我有5个模型需要一次保存在一个表单中。我正在测试在两个模型上保存,但正如我所说的,我在保存方法上遇到了错误。作为一个初学者,我对完成任务的最佳方法有点迷茫 我所做的: 模板: <for
InternalError at /submeter/anuncio/
current transaction is aborted, commands ignored until end of transaction block
我会尽力解释我在做什么
好的,我有5个模型需要一次保存在一个表单中。我正在测试在两个模型上保存,但正如我所说的,我在保存方法上遇到了错误。作为一个初学者,我对完成任务的最佳方法有点迷茫
我所做的:
模板:
<form method="post" action="/submeter/anuncio/">{% csrf_token %}
{{form_main}}
{{form_bicyclead}}
<input type="hidden" name="section" value="5" />
<input type="submit">
</form>
Forms.py:
class MainForm(forms.ModelForm):
class Meta:
model = Main
exclude = ('user', 'section')
class BicycleAdForm(forms.ModelForm):
class Meta:
model = BicycleAd
exclude = ('main', 'bicycleadtype', 'bicycleaditemkind', 'bicycleadcondition', 'city')
Models.py:
class Main(models.Model):
section = models.ForeignKey(Section)
user = models.ForeignKey(User)
title = models.CharField(max_length=250)
date_inserted = models.DateTimeField(auto_now_add=True)
date_last_update = models.DateTimeField(auto_now=True)
def __unicode__(self):
return self.title
class Meta:
ordering = ['date_inserted']
class BicycleAd(models.Model):
main = models.ForeignKey(Main)
bicycleadtype = models.ForeignKey(BicycleAdType)
bicycleaditemkind = models.ForeignKey(BicycleAdItemKind) # MPTT Model
bicycleadcondition = models.ForeignKey(BicycleAdCondition)
country = models.ForeignKey(GeonamesCountry)
city = models.ForeignKey(GeonamesLocal)
date_inserted = models.DateTimeField(auto_now_add=True)
date_last_update = models.DateTimeField(auto_now=True)
class Meta:
ordering = ['date_inserted']
我的问题是:如何“覆盖”views.py中的表单_main.save(),并告诉他们我在模型“section,user和title”中的所有字段?我认为错误是因为字段“section”和“user”没有传递到save方法。如何传递此值
另一个问题:我是以正确的方式做这件事的,还是有更简单更简单的方式来实现我想要实现的目标
向您致意将您的模型表格修改为:
class MainForm(forms.ModelForm):
def __init__(self, *args, **kw):
self.user = kw.pop('user')
self.section = kw.pop('section')
super(MainForm).__init__(*args, **kw)
class Meta:
model = Main
exclude = ('user', 'section')
def save(self, *args, **kw):
instance = super(MainForm).save(commit=False)
instance.user = self.user
instance.section = self.section
instance.save()
return instance
现在,当您在视图中创建表单的外观时,需要传递用户
和部分
:
form_main = MainForm(request.POST or None, user=request.user, section=section)
将模型表单修改为:
class MainForm(forms.ModelForm):
def __init__(self, *args, **kw):
self.user = kw.pop('user')
self.section = kw.pop('section')
super(MainForm).__init__(*args, **kw)
class Meta:
model = Main
exclude = ('user', 'section')
def save(self, *args, **kw):
instance = super(MainForm).save(commit=False)
instance.user = self.user
instance.section = self.section
instance.save()
return instance
现在,当您在视图中创建表单的外观时,需要传递用户
和部分
:
form_main = MainForm(request.POST or None, user=request.user, section=section)
我的方法是替换此代码:
def submit_ad_view(request):
if request.method == 'POST':
post_values = request.POST.copy()
post_values['user'] = request.user.username
post_values['bicycleadtype'] = 2
post_values['bicycleaditemkind'] = 4
post_values['bicycleadcondition'] = 2
post_values['city'] = 4803854
form_main = MainForm(post_values)
作者:
您可以在django doc上了解更多信息。我的方法是替换此代码:
def submit_ad_view(request):
if request.method == 'POST':
post_values = request.POST.copy()
post_values['user'] = request.user.username
post_values['bicycleadtype'] = 2
post_values['bicycleaditemkind'] = 4
post_values['bicycleadcondition'] = 2
post_values['city'] = 4803854
form_main = MainForm(post_values)
作者:
您可以在django doc上了解更多信息。我想您的意思是
self.section=kw.pop('section')
谢谢您的回答。我想你是说self.section=kw.pop('section')
谢谢你的回答。它也能完成这项工作。