Django仅保存表单集的第一种形式 [英] Django save only first form of formset
问题描述
我已经浏览了每个类似的问题(并尝试了它们),但仍然找不到答案。
我有两个模型:
class项目(models.Model):
author = models.ForeignKey(settings.AUTH_USER_MODEL,默认= 1)
名称= models.CharField(max_length = 120,verbose_name =Названиепроекта)
url = models.URLField(max_length = 120,unique = True,verbose_name =Полныйадрессайта)
robots_length = models。 CharField(max_length = 5,default = 0)
更新= models.DateTimeField(auto_now = True,auto_now_add = False)
时间戳= models.DateTimeField(auto_now = False,auto_now_add = True)
def __unicode __(self):
return self.name
def __str __(self):
return self.name
def get_absolute_url (个体):来自django.urls的
导入反向
返回反向('projects:detail',args = [str(self.id)])
类ProjectPage(模型.Model):
page_project = models.ForeignKey(Project,on_delete = models.CASCADE)
page_url = models.URLField(verbose_name =Адресстраницы)
page_title = models.CharField(max_length = 300,blank = True,verbose_name = meta-title,default =)
page_description = models.CharField(max_length = 300,blank = True,verbose_name = meta-description,default =)
page_h1 =模型.CharField(max_length = 300,blank = True,verbose_name =Заголовокh1,default =)
def __unicode __(self):
return self.page_url
def __str __(self):
return self.page_url
对于每种型号是一种形式:
class ProjectFormUpdate(forms.ModelForm):
class Meta:
model = Project
字段= [
名称,
URL,
]
小部件= {
'名称':forms.TextInput(attrs = { '占位符':'Произвольноеназвание'}),
}
类ProjectPageForm(forms.ModelForm):
类元:
模型= ProjectPage
字段= [
'page_project',
'page_url',
'page_title',
'page_description',
'page_h1',
]
小部件= {
'page_project' :forms.HiddenInput()
}
在views.py中,我有:
def projects_update(request,proj = None):
实例= get_object_or_404(Project,id = proj)
形式= ProjectFormUpdate(request.POST或None,instance = instance)
formset_f = modelformset_factory(ProjectPage,form = ProjectPageForm,extra = 3)
formset = formset_f(queryset = ProjectPage.objects.filter (page_project__id = proj),初始= [{{'page_project':proj}])
如果request.method =='POST':
formset = formset_f(request.POST)
用于formset_form formset:如果formset_form.is_valid()和formset_form.has_changed()为
formset_form.save()
如果form.is_valid()为
form.save()
context = {
'title':Редактируемпроект- + instance.name,
'form':form,
'formset':formset,
'instance':实例,
}
return render(request, projects_update.html,context)
最后,html
< form method = POST action =类= create-form>
{{formset.management_form}}
{%csrf_token%}
< div class = row>
< div class = col-lg-6 offset-lg-3 col-md-10 offset-md-1 col-xs-10 offset-xs-1 form-bg>
< h2>Общиеданные< / h2>
{{form | crispy}}
<输入type = submit class = btn btn-success value =Обновитьпроект />
< / div>
< / div>
{%for formset_form in formset%}
< div class = row form-container>
< div class = col-lg-6 offset-lg-3 col-md-10 offset-md-1 col-xs-10 offset-xs-1 form-bg>
< h3>Страница{{forloop.counter}}< / h3>
{{formset_form | crispy}}
< / div>
< / div>
{%endfor%}
< / form>
我要实现的目标是:当用户进入页面时,他得到一个带有项目名称的表格并且已经填写了项目URL。因此,他可以对其进行更正。
下面,我想为已经为此项目创建的每个页面显示一个填写好的表单,其中几个空白
发生的事情是所有初始数据都能正确显示,但是当我填写几个空白表格时-每次仅保存第一个空白表格。
解决方法如下:
- 正确包含了错误。
- 看到倒数第二个表单缺少必填字段(hiddenInput)
-
视图发生了变化,因此看起来:
formset_f = modelformset_factory(ProjectPage,form = ProjectPageForm,extra = 3)
formset = formset_f (queryset = ProjectPage.objects.filter(page_project__id = proj),初始= [{{'page_project':proj},{'page_project':proj},{ 'page_project':proj}])
初始值现在匹配额外形式的数量-每个形式都有它自己的外键。
可能有更好的解决方案,但是问题为我找到并解决了! / p>
I've looked through every similar question (and tried them), but still couldn't find answer.
I have two models:
class Project(models.Model):
author = models.ForeignKey(settings.AUTH_USER_MODEL, default=1)
name = models.CharField(max_length=120, verbose_name = "Название проекта")
url = models.URLField(max_length=120, unique=True, verbose_name = "Полный адрес сайта")
robots_length = models.CharField(max_length=5, default=0)
updated = models.DateTimeField(auto_now=True, auto_now_add=False)
timestamp = models.DateTimeField(auto_now=False, auto_now_add=True)
def __unicode__(self):
return self.name
def __str__(self):
return self.name
def get_absolute_url(self):
from django.urls import reverse
return reverse('projects:detail', args=[str(self.id)])
class ProjectPage(models.Model):
page_project = models.ForeignKey(Project, on_delete=models.CASCADE)
page_url = models.URLField(verbose_name = "Адрес страницы")
page_title = models.CharField(max_length=300, blank=True, verbose_name = "meta-title",default="")
page_description = models.CharField(max_length=300, blank=True, verbose_name = "meta-description",default="")
page_h1 = models.CharField(max_length=300, blank=True, verbose_name = "Заголовок h1",default="")
def __unicode__(self):
return self.page_url
def __str__(self):
return self.page_url
For each model there is a form:
class ProjectFormUpdate(forms.ModelForm):
class Meta:
model = Project
fields = [
"name",
"url",
]
widgets = {
'name': forms.TextInput(attrs={'placeholder': 'Произвольное название'}),
}
class ProjectPageForm(forms.ModelForm):
class Meta:
model = ProjectPage
fields = [
'page_project',
'page_url',
'page_title',
'page_description',
'page_h1',
]
widgets = {
'page_project': forms.HiddenInput()
}
In views.py I have:
def projects_update(request, proj=None):
instance = get_object_or_404(Project, id=proj)
form = ProjectFormUpdate(request.POST or None, instance=instance)
formset_f = modelformset_factory(ProjectPage, form=ProjectPageForm, extra=3)
formset = formset_f(queryset=ProjectPage.objects.filter(page_project__id=proj), initial =[{'page_project': proj}])
if request.method == 'POST':
formset = formset_f(request.POST)
for formset_form in formset:
if formset_form.is_valid() and formset_form.has_changed():
formset_form.save()
if form.is_valid():
form.save()
context = {
'title': "Редактируем проект - "+instance.name,
'form': form,
'formset': formset,
'instance': instance,
}
return render(request, "projects_update.html", context)
And, finaly, html
<form method="POST" action="" class="create-form">
{{ formset.management_form }}
{% csrf_token %}
<div class="row">
<div class="col-lg-6 offset-lg-3 col-md-10 offset-md-1 col-xs-10 offset-xs-1 form-bg">
<h2>Общие данные</h2>
{{ form|crispy}}
<input type="submit" class="btn btn-success" value="Обновить проект" />
</div>
</div>
{% for formset_form in formset %}
<div class="row form-container">
<div class="col-lg-6 offset-lg-3 col-md-10 offset-md-1 col-xs-10 offset-xs-1 form-bg">
<h3>Страница {{forloop.counter}}</h3>
{{ formset_form|crispy}}
</div>
</div>
{% endfor %}
</form>
What I am trying to achieve is: when user enters a page, he gets a form with project name and project URL already filled in. So, he can correct them.
Below, I want to show a filled in form for every page allready created for this project and several empty forms for creating new.
What happens is all initial data is displayed correctly, but when I fill several empty forms - only first empty form is saved each time.
Here is how it was solved:
- Included errors properly.
- Saw that second to last form lack required field (hiddenInput)
Made changes in view so it looks like:
formset_f = modelformset_factory(ProjectPage, form=ProjectPageForm, extra=3) formset = formset_f(queryset=ProjectPage.objects.filter(page_project__id=proj), initial =[{'page_project': proj}, {'page_project': proj}, {'page_project': proj}])
Initial values now match number of extra forms - every form got it's own foreign key.
Probably there is a better solution, but the the problem is found and solved for me!
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