我怎样才能保存Django中的manytomany字段?
models.py:
class Tag(models.Model):
name = models.CharField(max_length=100)
description = models.CharField(max_length=500, null=True, blank=True)
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now_add=True)
class Post(models.Model):
user = models.ForeignKey(User)
tag = models.ManyToManyField(Tag)
title = models.CharField(max_length=100)
content = models.TextField()
created = models.DateTimeField(default=datetime.datetime.now)
modified = models.DateTimeField(default=datetime.datetime.now)
def __unicode__(self):
return '%s,%s' % (self.title,self.content)
class PostModelForm(forms.ModelForm):
class Meta:
model = Post
class PostModelFormNormalUser(forms.ModelForm):
class Meta:
model = Post
widgets = { 'tag' : TextInput() }
exclude = ('user', 'created', 'modified')
def __init__(self, *args, **kwargs):
super(PostModelFormNormalUser, self).__init__(*args, **kwargs)
self.fields['tag'].help_text = None
我在views.py中尝试过的:(这看起来不正确)
if request.method == 'POST':
form = PostModelFormNormalUser(request.POST)
print form
print form.errors
tagstring = form.data['tag']
splitedtag = tagstring.split()
if form.is_valid():
temp = form.save(commit=False)
temp.user_id = user.id
temp.save()
post = Post.objects.get(id=temp.id)
l = len(splitedtag)
for i in range(l):
obj = Tag(name=splitedtag[i])
obj.save()
post.tag.add(obj)
post = Post.objects.get(id=temp.id)
return HttpResponseRedirect('/viewpost/' + str(post.id))
else:
form = PostModelFormNormalUser()
context = {'form':form}
return render_to_response('addpost.html', context, context_instance=RequestContext(request))
任何人都可以发布示例完整代码编辑此代码以保存到Post表,Tag表和post_tag表中吗?
输入表单将包含一个用于键入“标题”的文本框和一个用于键入“内容”的 texarea 以及一个用于键入“标签”作为字符串的文本框。标签字符串由空格分隔。我需要将这些标签词保存到标签表中并映射到 post_tag 表中。
我该怎么做?
models.py:
class Tag(models.Model):
name = models.CharField(max_length=100)
description = models.CharField(max_length=500, null=True, blank=True)
created = models.DateTimeField(auto_now_add=True)
modified = models.DateTimeField(auto_now_add=True)
class Post(models.Model):
user = models.ForeignKey(User)
tag = models.ManyToManyField(Tag)
title = models.CharField(max_length=100)
content = models.TextField()
created = models.DateTimeField(default=datetime.datetime.now)
modified = models.DateTimeField(default=datetime.datetime.now)
def __unicode__(self):
return '%s,%s' % (self.title,self.content)
class PostModelForm(forms.ModelForm):
class Meta:
model = Post
class PostModelFormNormalUser(forms.ModelForm):
class Meta:
model = Post
widgets = { 'tag' : TextInput() }
exclude = ('user', 'created', 'modified')
def __init__(self, *args, **kwargs):
super(PostModelFormNormalUser, self).__init__(*args, **kwargs)
self.fields['tag'].help_text = None
what i tried in views.py: (that doesn't look the correct way)
if request.method == 'POST':
form = PostModelFormNormalUser(request.POST)
print form
print form.errors
tagstring = form.data['tag']
splitedtag = tagstring.split()
if form.is_valid():
temp = form.save(commit=False)
temp.user_id = user.id
temp.save()
post = Post.objects.get(id=temp.id)
l = len(splitedtag)
for i in range(l):
obj = Tag(name=splitedtag[i])
obj.save()
post.tag.add(obj)
post = Post.objects.get(id=temp.id)
return HttpResponseRedirect('/viewpost/' + str(post.id))
else:
form = PostModelFormNormalUser()
context = {'form':form}
return render_to_response('addpost.html', context, context_instance=RequestContext(request))
Can anyone post example complete code editing this to save into Post table, Tag table and post_tag table?
The input form will contain a textbox to type 'title' and texarea for 'content' and a textbox to type 'tag' as string. The tag string is seperated by space. I need to save those tag words into Tag table and map in post_tag table.
How can i do this?
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顺便说一句,如果您要实现标记,则可以使用 django-tagging 或 django-taggit
http://code.google.com/p/django-tagging/
http://django-taggit.readthedocs.org/en/latest/index.html
http://djangopackages.com/grids/g/tagging/
As an aside, if you're implimenting tagging, you could just use django-tagging or django-taggit
http://code.google.com/p/django-tagging/
http://django-taggit.readthedocs.org/en/latest/index.html
http://djangopackages.com/grids/g/tagging/
在有关 ModelForms 和
save(commit=False)
的 Django 文档中,您将找到有关 save_m2m() 方法。我相信这就是您正在寻找的。In the Django docs regarding ModelForms and
save(commit=False)
, you'll find information regarding the save_m2m() method. I believe that is what you're looking for.