Python Django使用forms来实现评论功能

 from __future__ import unicode_literals
from django.contrib import admin
from django.db import models
from django import forms
# Create your models here.
TOPIC_CHOICES = (
  ('level1','Bad'),
  ('level2','SoSo'),
  ('level3','Good'),
)

class RemarkForm(forms.Form):
  subject = forms.CharField(max_length=100,label='Mark Board')
  mail = forms.EmailField(label='email')
  topic = forms.ChoiceField(choices=TOPIC_CHOICES,label='choose one topic')
  message = forms.CharField(label='content for mark',widget=forms.Textarea)
  cc_myself = forms.BooleanField(required=False,label='watch this tie')

class Remark(models.Model):
  subject = models.CharField(max_length=100)
  mail = models.EmailField()
  topic = models.CharField(max_length=100)
  message = models.CharField(max_length=300)
  cc_myself = models.BooleanField()

  def __unicode__(self):
    return self.subject

  class Meta:
    ordering = ['subject']


admin.site.register([Remark,])

"""FormRelative URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
  https://docs.djangoproject.com/en/1.9/topics/http/urls/
Examples:
Function views
  1. Add an import: from my_app import views
  2. Add a URL to urlpatterns: url(r'^$', views.home, name='home')
Class-based views
  1. Add an import: from other_app.views import Home
  2. Add a URL to urlpatterns: url(r'^$', Home.as_view(), name='home')
Including another URLconf
  1. Import the include() function: from django.conf.urls import url, include
  2. Add a URL to urlpatterns: url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url
from django.contrib import admin
from app.views import *
urlpatterns = [
  url(r'^admin/', admin.site.urls),
  url(r'^remark/$',reamark),
]

from django.shortcuts import render
from app.models import *
from django.http import *

# Create your views here.
# subject = models.CharField(max_length=100)
#   mail = models.EmailField()
#   topic = models.CharField(max_length=100)
#   message = models.CharField(max_length=300)
#   cc_myself = models.BooleanField()

def reamark(request):
  if request.method =="POST":
    form = RemarkForm(request.POST)
    if form.is_valid():
      myremark = Remark()
      myremark.subject=form.cleaned_data['subject']
      myremark.mail = form.cleaned_data['mail']
      myremark.topic = form.cleaned_data['topic']
      myremark.message = form.cleaned_data['message']
      myremark.cc_myself = form.cleaned_data['cc_myself']
      myremark.save()
      # return HttpResponse("Publish Success!")
  else:
    form = RemarkForm()

  ctx = {
    'form':form,
    'ties':Remark.objects.all()
  }
  return render(request,'message.html',ctx)

  
  



  {% for field in form %}
  {% csrf_token %}
  

    {{ field.label_tag }}:{{ field }}
    {{ field.errors }}
  
  {% endfor %}

  



{% for tie in ties %}
  

  

    
{{ tie.subject }}
    
{{ tie.mail}}
    
{{ tie.topic}}
    
{{ tie.message }}
    
{{ tie.cc_myself }}
  
  

  
{% endfor%}

# Database
# https://docs.djangoproject.com/en/1.9/ref/settings/#databases

DATABASES = {
  'default': {
    'ENGINE': 'django.db.backends.sqlite3',
    'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
  }
}

// 创建数据库表结构
python manage.py makemigrations

python manage.py migrate

// 按照提示进行操作即可，目的是为了创建一个超级管理员
python createsuperuser

//在自带的开发服务器上运行我们的项目
python manage.py runserver

if request.method =="POST":
    form = RemarkForm(request.POST)
    if form.is_valid():
      myremark = Remark()
      myremark.subject=form.cleaned_data['subject']
      myremark.mail = form.cleaned_data['mail']
      myremark.topic = form.cleaned_data['topic']
      myremark.message = form.cleaned_data['message']
      myremark.cc_myself = form.cleaned_data['cc_myself']
      myremark.save()
      # return HttpResponse("Publish Success!")
  else:
    form = RemarkForm()

  ctx = {
    'form':form,
    'ties':Remark.objects.all()
  }
  return render(request,'message.html',ctx)