Django ajax形式,choicefields依赖 [英] Django ajax form, choicefields dependancy
问题描述
models.py
class Book(models.Model):
title = models.CharField()
genre = models.ManyToManyField(类型)
类类型(models.Model):
name = models.Charfield()
class ReadBook .Model):
genre = models.ForeignKey(类型)
books = models.ManyToManyField(Book)
另外我有一个ModelForm:
class ReadBookForm(ModelForm):
class Meta:
model = ReadBook
template.html
< form action =/ add_report /method =post> {%csrf_token%}
{{form.as_p}}
< input type =submitvalue =Submit/>
< / form>
目的:
默认情况下仅显示访问者一场 - 流派。当他完成这个选择 - 显示与所选类型相关的书籍模型中的其他领域。
inside form tag: / p>
{{form.genre}}
< div id =books>< / div>
< input type =submitvalue =Submitdisabled =yes/>
然后在javascript(jQuery是伟大的这个东西):
$('#{{form.genre.id}}')。change(function(){
$('#books' ('{%url get_genre_books%}',{类型:$(this).value()})
});
您必须创建一个视图,该视图将返回应放置在此div中的html:
def get_genre_books(request):
genre = get_object_or_404(pk = request.GET.get('genre',None))
#在这里渲染一个模板或者某些东西,这些书是多个选择器)
resp =,.join(genre.book_set.values_list('title',flat = True))
返回HttpResponse(resp)
当然这个视图添加到urls.py。 >
许多解决方案之一:)没有'测试(只写在这里,所以也许在某处的小错误):)
models.py
class Book(models.Model):
title = models.CharField()
genre = models.ManyToManyField(Genre)
class Genre(models.Model):
name = models.Charfield()
class ReadBook(models.Model):
genre = models.ForeignKey(Genre)
books = models.ManyToManyField(Book)
Also I have one ModelForm:
class ReadBookForm(ModelForm):
class Meta:
model = ReadBook
template.html
<form action="/add_report/" method="post">{% csrf_token %}
{{ form.as_p }}
<input type="submit" value="Submit" />
</form>
The purpose: By default to show a visitor only one field - genre. When he is with done this choice - show other fields from books model, related to selected genre.
inside form tag:
{{ form.genre }}
<div id="books"></div>
<input type="submit" value="Submit" disabled="yes" />
then in javascript (jQuery is great for this stuff):
$('#{{ form.genre.id }}').change(function(){
$('#books').load('{% url get_genre_books %}', {genre: $(this).value()})
});
you must create a view that will return a html that should be placed in this div:
def get_genre_books(request):
genre = get_object_or_404(pk=request.GET.get('genre', None))
# here render a template or something that shouls be multiple selector of the books)
resp = ", ".join(genre.book_set.values_list('title', flat=True))
return HttpResponse(resp)
and of course add this view to the urls.py.
One of many solutions :) didnt' test it (written only here, so maybe small bugs somewhere) :)
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