Django-5.Form

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第一个简单的form

1. html

       <form action="/crm/cust_search/" method="get">
           <input type="text" name="cust_id">
           <input type="submit" value="Search">
       </form>

2. urls

       url(r'^cust_list/$',cust_list),
       url(r'^cust_search/$',cust_search),

3. models

   def cust_list(request):
       return render(request,'cust_list.html')
   
   def cust_search(request):
       if "cust_id" in request.GET:
           message="You search for :%r" % request.GET['cust_id']
       else:
           message="You submitted an empty form"
       return HttpResponse(message)

使用Django创建表单

自定义Form类如何关联到前台

1. Forms.py

   from django import forms
   
   class add_user_form(forms.Form):
       #label可以指定标注
       cust_id=forms.CharField(max_length=20,label=u"客户号")
       cust_name=forms.CharField(max_length=50,widget=forms.Textarea)
       #1.对公 2.对私
       cust_type=forms.CharField(max_length=1,label=u"客户类型")
       card_type=forms.CharField(max_length=3)
       card_no=forms.CharField(max_length=20)
       cust_opdt=forms.CharField(max_length=20)
       cust_oprg=forms.CharField(max_length=20)
       cust_valied=forms.CharField(max_length=2)
       #可选: 附加校验条件
       def clean_cust_type(self):
           cust_type=self.cleaned_data['cust_type']
           if cust_type != '1' and cust_type != '2':
               raise forms.ValidationError("1-对公 2-对私")
           return cust_type

2. html

       <form action="" method="post">
           <table>
               {{ form.as_table }}
           </table>
           {% csrf_token %}
           <input type="submit" value="Submit">
       </form>

   这里as_table可以自动将Form中的所有元素放到页面前台上

3. views

   def add_user(request):
       if request.method == "POST":
           form= add_user_form(request.POST)
           if form.is_valid():
               return HttpResponse("添加成功")
       else:
           form = add_user_form(
               #可选:添加表单初始值
               initial={'cust_id':'100000',
                   'cust_name':'张先生'
                   }
           )
       return render(request,'add_user.html',{'form':form})

自定义样式的添加

1. views

   这里views 不用修改，仍然只需传入form对象即可

2. html

    <style type="text/css">
           ul.errorlist {
           margin: 0;
           padding: 0;
           }
           .errorlist li {
           background-color: red;
           color: white;
           display: block;
           font-size: 10px;
           margin: 0 0 3px;
           padding: 4px 5px;
           }
           </style>
   
       <form action="" method="post">
           <div class="field">
           {{ form.cust_id.errors }}<br>
           {{ form.cust_id.label }}:
           {{ form.cust_id }}
           </div>
           <input type="submit" value="Submit">
       </form>

   这里只示范了一个form元素的存放