django 表单提交的几种方式

第一种方式：直接建立form构建

新建model

class Contact(models.Model):
    subject = models.CharField(max_length=100)
    message = models.TextField()
    email = models.EmailField(max_length=100)
    def __unicode__(self):
        return self.subject
class ContactAdmin(admin.ModelAdmin):
    list_display=('subject','message')
    search_fields=('subject','message')
    list_filter=('subject','message')

新建form

TOPIC_CHOICES = ( ('general', 'General enquiry'), ('bug', 'Bug report'), ('suggestion', 'Suggestion'), )
class ContactForm(forms.Form):
    subject = forms.CharField(max_length=100)
    #topic = forms.ChoiceField(choices=TOPIC_CHOICES)
    #message = forms.CharField()
    message = forms.CharField(widget=forms.Textarea(),initial="Replace with your feedback")
    sender = forms.EmailField(initial='pianzif@126.com')
    cc_myself = forms.BooleanField(required=False)
# Create your views here.
def contact(request):
    lit_list=Article.objects.all()
    if request.method == 'POST':
        form = ContactForm(request.POST)
        if form.is_valid():
            sender = form.cleaned_data['sender']
            message = form.cleaned_data['message']
            mess_len=len(message)
            if mess_len<4:
                raise forms.ValidationError("not enough word")
            subject = form.cleaned_data['subject']
            Contact.objects.create(email=sender,message=message,subject=subject)
            #return HttpResponse('OK')
            return HttpResponseRedirect('/news/articles/2014')
    else:
        form = ContactForm()
    return render_to_response('contact.html',{'form':form,'literary' : lit_list},RequestContext(request))

-----add 2015年8月28日 00:16:58

# 获取文章详细信息，包含一个CommentForm表单
def detail(req, article_id):
    if req.method == 'POST':
        form = CommentForm(req.POST)
        if form.is_valid():
            name = form.cleaned_data['name']
            address = form.cleaned_data['address']
            email = form.cleaned_data['email']
            context = form.cleaned_data['context']
            article = Article.objects.get(pk=article_id)
            comment = Comment(article=article, name=name, address=address, email=email, context=context)
            comment.save()
            return HttpResponseRedirect('dlog/detail.html')

--add end

urls.py 中增加

    (r'^contact/$',contact),

增加模版

{% extends "list_article.html" %}
{% block contact %}
<form action="/news/contact/" method="post">{% csrf_token %}
<h2>-------contact me,pls write your info</h2>
{{ form.as_p}}
<input type="submit" value="Submit" />
</form>
{% endblock %}

模版还可以在这样写：

{% extends "list_article.html" %}
{% block contact %}
<form action="." method="POST"> 
   <div class="fieldWrapper">
     {{ form.subject.errors }} 
    <label for="id_topic">Kind of feedback:</label> {{ form.subject }} 
   </div> 
   <div class="fieldWrapper">
     {{ form.message.errors }} 
    <label for="id_message">Your message:</label> {{ form.message }} 
   </div> 
   <div class="fieldWrapper">
     {{ form.sender.errors }} 
    <label for="id_sender">Your email (optional):</label> {{ form.sender }} 
   </div> 
   <p><input type="submit" value="Submit" /></p> 
  </form>
{% endblock %}

第二种方式：使用模版构建

参考：http://blog.chinaunix.net/uid-21633169-id-4349932.html

新建model

class RemarkForm(models.Model):
    subject = models.CharField(max_length=100)
    mail = models.EmailField(max_length=100)
    message = models.CharField(max_length=100)

新建form

class ContactForm2(forms.ModelForm):
    class Meta:
        model=RemarkForm                     #表明这个表单继承自叫 RemarkForm的模型
        fields=('mail','message',)           #指定表单继承模型的哪些属性
def remark(request):
    if request.method=='POST':
        form=ContactForm2(request.POST)

        if form.is_valid():
            mail=form.cleaned_data['mail']
            topic=form.cleaned_data['topic']

            return HttpResponse(mail+topic)  #这里有点问题
    else:
        form=ContactForm2()
    return render_to_response('message.html',{'form':form},RequestContext(request)) 

新建urls

(r'^message/$',remark),

新建模版

[root@localhost mysite16_5_demo4]# more news/templates/message.html 
{% extends "list_article.html" %}
{% block contact %}
  <form action="/message/" method="POST">
    {% for field in form %} 
      <div class="fieldWrapper">
     {{ field.label_tag }}:{{ field }} {{ field.errors }} 
    </div>
    {% endfor %} 
    <div class="fieldWrapper">

     <p><input type="submit" value="留言" /></div> 
  </form>
{% endblock %}
[root@localhost mysite16_5_demo4]# 

演示效果(比代码多了一个字段)

第三种方式（未测试）：《The Django Book-----中文版.pdf》P132

我们的出版商模型拥有一个名字，地址，城市，州（省），国家和网站。在form中重复这个信息无疑违反了DRY原则。我们可以使用一个捷径：form_for_model()：