所以我有两个通过Many-to-many
关系相关的模型。由于我需要一个额外的文件,我使用额外的模型CategoryByDay
1
,如果不是0
)。我正在使用CharField
,因为后来我想将其他内容记录为书籍阅读等,这与此无关
from django.db import models
class Day(models.Model):
name = models.CharField(max_length=8)
date = models.DateField()
def __unicode__(self):
return self.name
class Category(models.Model):
name = models.CharField(max_length=100)
categoryBD = models.ManyToManyField(Day, through='CategoryByDay')
def __unicode__(self):
return self.name
class CategoryByDay(models.Model):
day = models.ForeignKey(Day)
category = models.ForeignKey(Category)
status = models.CharField(max_length=64)
在我的html
中,我想显示一个类别列表及其附近的表单,其中只会发布状态,日期以及类别将自动填写。现在我不知道该怎么做。这是我到目前为止所看到的,在一些论坛上阅读,您可以从视图传递额外的数据(这不起作用,并形成要求我填写日期和类别形式)
def today(request):
if request.method == 'POST':
#... POST validation here, not relevant
else:
day = datetime.date.today().strftime("%d/%m/%y")
categories_list = Category.objects.all()
category_form_list = []
# I am doing this strange list, because later in template I had problem
# accessing list through iteration like forloop.counter.
# I will access it via for x,y in pair
for category in categories_list:
data = {'day': day,
'category': category.name,}
form = CategoryByDayForm(data)
#So I tried adding data to form, it didn't work and can be ignored
part = [category, form]
category_form_list.append(part)
context = { 't': t,
'category_form_list': category_form_list,}
return render(request, 'today/today.html', context)
这是我的表格,我应该早点补充一下。
class CategoryByDayForm(forms.ModelForm):
status = forms.CharField(max_length=64, initial="0")
day = forms.ModelMultipleChoiceField(queryset=Day.objects.all())
category = forms.ModelMultipleChoiceField(queryset=Category.objects.all())
class Meta:
model = CategoryByDay
现在,在表单中,我不确定我应该在日期和类别中使用哪种表单类型。也许我应该以某种方式省略它?
最后模板:
#...
<ul>
{% for category, form in category_form_list %}
<li>
{{ category.name }}
<form action="" method="post">
{% csrf_token %}
{{ form.non_field_errors}}
<div class="status">
{{ form.status.errors}}
{{ form.status }}
<input type="submit" value="Submit" />
</div>
</form>
</li>
{% endfor %}
</ul>
#...
这是有效的,只显示一个表单status
但是当我点击提交并以我的方式调试它时,我有错误,我没有填写日期和类别表单。
有人可以告诉我如何继续吗?
答案 0 :(得分:2)
我设法让它发挥作用。
对于未来的任何人偶然谷歌搜索和访问这个页面是我做的。
1.更改CategoryByDayForm的形式,使其仅接受状态并排除日期和类别
from django import forms
from today.models import CategoryByDay, Category, Day
class CategoryByDayForm(forms.ModelForm):
status = forms.CharField(max_length=64, initial="0")
class Meta:
model = CategoryByDay
exclude = ['day', 'category']
#...
{% for category, form in category_form_list %}
<li>
{{ category.name }}
<form action="" method="post">
{% csrf_token %}
{{ form.non_field_errors}}
<input type="hidden" value="{{ category.name }}" name="category">
<div class="status">
{{ form.status }}
<input type="submit" value="Submit" />
</div>
</form>
</li>
{% endfor %}
# ...
最后,在视图中,我操纵了我得到的表单,所以我添加了缺少的元素(从表单我有状态,我仍然需要设置日期和类别)
def today(request):
t = datetime.date.today().strftime("%d/%m/%y")
day = Day.objects.filter(name=t)
if request.method == 'POST':
form = CategoryByDayForm(request.POST)
if form.is_valid():
category_status = form.save(commit=False)
category_status.day = day[0]
category_name = request.POST['category']
category_status.category = Category.objects.filter(name=category_name)[0]
category_status.save()
form.save_m2m()
希望将来可以帮助某人。
答案 1 :(得分:1)
另一种解决方案 views.py:
class ViewIndex(TemplateResponseMixin, View):
template_name = 'frontend/view_index.html'
def dispatch(self, request, *args, **kwargs):
FS = modelformset_factory(CategoryByDay, extra=1)
queryset = CategoryByDay.objects.filter(day__date=datetime.date.today())
if request.method == 'POST':
formset = FS(request.POST, request.FILES)
if formset.is_valid():
formset.save()
formset = FS(queryset=queryset)
else:
formset = FS(queryset=queryset)
return self.render_to_response({'formset':formset})
frontend / view_index.html:
{% extends 'base.html' %}
{% block content_main %}
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ formset.management_form }}
{% for form in formset %}
{{ form }}
<hr/>
{% endfor %}
<input type="submit">
</form>
{% endblock %}
和urls.py
urlpatterns = patterns('',
url(r'^$', ViewIndex.as_view(), name='view_index'),
)