#models.py 問題分類question_category和類別使用了多對(duì)多關(guān)系(先不管是否合理)
#coding:utf-8
from django.db import models

# Create your models here.

class QuestionCategory(models.Model):
 category_name = models.CharField('問題分類',max_length=50)

 def __unicode__(self):
 return self.category_name


class Question(models.Model):
 question_category = models.ManyToManyField(QuestionCategory,verbose_name="歸屬分類")
 question_title = models.CharField('標(biāo)題', max_length=50)
 question_author = models.ForeignKey('auth.User', blank=True, null=True,verbose_name='作者')
 question_keywords = models.CharField('關(guān)鍵詞',max_length=20)
 question_date = models.DateTimeField('date published')
 question_text = models.CharField('正文內(nèi)容', max_length=200)

 def __unicode__(self):
 return self.question_title

#QuestionCategory.objects.get生成一個(gè)類別實(shí)例
#request.POST從前端獲取表單提交的數(shù)據(jù)后,湊到Question里面形成一個(gè)問題實(shí)例
#先把問題實(shí)例存好,再在問題實(shí)例的多對(duì)多關(guān)聯(lián)字段question_category上添加關(guān)聯(lián)對(duì)象joe這個(gè)類別實(shí)例,關(guān)聯(lián)好之后再save第二遍,查看數(shù)據(jù)庫(kù)里面關(guān)聯(lián)關(guān)系就存好了
def ask_question(request):

 question_category_name = request.POST['radio']
 question_title = request.POST['question_title']
 question_keywords = request.POST['question_keywords']
 question_text = request.POST['question_content']
 question_date = datetime.datetime.now()
 question_author = request.user
 joe = QuestionCategory.objects.get(category_name=question_category_name)
 print joe
 qqqq = Question(question_title=question_title,question_keywords=question_keywords,question_date=question_date,question_text=question_text,question_author=question_author)
 qqqq.save()
 qqqq.question_category.add(joe)
 qqqq.save()

 return redirect('pythonnav:index')