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django之form表单验证
django中的Form一般有两种功能：
- 输入html
- 验证用户输入
#!/usr/bin/env python# -*- coding:utf-8 -*-import refrom django import formsfrom django.core.exceptions import ValidationErrordef mobile_validate(value): mobile_re = re.compile(r‘^(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$‘) if not mobile_re.match(value): raise ValidationError(‘手机号码格式错误‘)class PublishForm(forms.Form): # # user_type_choice = ( # (0, u‘普通用户‘), # (1, u‘高级用户‘), # ) user_type_choice = models.BookType.objects.values_list(‘id‘,‘caption‘) user_type = forms.IntegerField(widget=forms.widgets.Select(choices=user_type_choice, attrs={‘class‘: "form-control"})) title = forms.CharField(max_length=20, min_length=5, error_messages={‘required‘: u‘标题不能为空‘, ‘min_length‘: u‘标题最少为5个字符‘, ‘max_length‘: u‘标题最多为20个字符‘}, widget=forms.TextInput(attrs={‘class‘: "form-control", ‘placeholder‘: u‘标题5-20个字符‘})) memo = forms.CharField(required=False, max_length=256, widget=forms.widgets.Textarea(attrs={‘class‘: "form-control no-radius", ‘placeholder‘: u‘详细描述‘, ‘rows‘: 3})) phone = forms.CharField(validators=[mobile_validate, ], error_messages={‘required‘: u‘手机不能为空‘}, widget=forms.TextInput(attrs={‘class‘: "form-control", ‘placeholder‘: u‘手机号码‘})) email = forms.EmailField(required=False, error_messages={‘required‘: u‘邮箱不能为空‘,‘invalid‘: u‘邮箱格式错误‘}, widget=forms.TextInput(attrs={‘class‘: "form-control", ‘placeholder‘: u‘邮箱‘}))
def publish(request): ret = {‘status‘: False, ‘data‘: ‘‘, ‘error‘: ‘‘, ‘summary‘: ‘‘} if request.method == ‘POST‘: request_form = PublishForm(request.POST) if request_form.is_valid(): request_dict = request_form.clean() print request_dict ret[‘status‘] = True else: error_msg = request_form.errors.as_json() ret[‘error‘] = json.loads(error_msg) return HttpResponse(json.dumps(ret))
#!/usr/bin/env python# -*- coding:utf-8 -*-from django import formsfrom app_from import modelsclass Form1(forms.Form): user = forms.CharField( widget=forms.TextInput(attrs={‘class‘: ‘c1‘}), error_messages={‘required‘: ‘用户名不能为空‘},) pwd = forms.CharField(max_length=4,min_length=2) email = forms.EmailField(error_messages={‘required‘: ‘邮箱不能为空‘, ‘invalid‘: ‘邮箱格式错误‘}) memo = forms.CharField( widget=forms.Textarea() ) # user_type_choice = ( # (0, ‘普通用户‘), # (1, ‘高级用户‘), # ) user_type_choice = models.BookType.objects.values_list(‘id‘,‘caption‘) book_type = forms.CharField( widget=forms.widgets.Select(choices=user_type_choice,attrs={‘class‘: "form-control"})) def __init__(self,*args, **kwargs): """ 这么写的目的是为了在更新数据库的时候每次都会执行这个方法 :param args: :param kwargs: """ super(Form1, self).__init__(*args, **kwargs) self.fields[‘book_type‘] = forms.CharField( widget=forms.widgets.Select(choices=models.BookType.objects.values_list(‘id‘,‘caption‘),attrs={‘class‘: "form-control"}))加了验证码的表单验证
下载这两个文件请点击--》【ooo】
from django.shortcuts import render,HttpResponse,HttpResponseRedirect# Create your views here.from app01.forms import Form1import iofrom check_code import check_codedef check_coder(request): mstream = io.BytesIO() img, code = check_code.create_validate_code() img.save(mstream,‘GIF‘) request.session["CheckCode"] = code # print(mstream.getvalue()) return HttpResponse(mstream.getvalue())def login(request): if request.method == ‘POST‘: print("aaa") f = Form1(request.POST) if f.is_valid(): code_sess = request.session.get(‘CheckCode‘,None) """ 思路：首先获取session，然后获取验证码的内容，全部大写 """ code = f.cleaned_data[‘check_code‘] user = f.cleaned_data[‘user‘] print(code_sess,code) if code.upper() == code_sess.upper(): print("验证码正确") print(code,user) return HttpResponseRedirect(‘/index/‘) else: print(‘bb‘) print(f.errors) return render(request,‘login.html‘,{‘error‘:f.errors,"ccc":"或者验证码错误",‘form‘:f}) else: f = Form1() return render(request,‘login.html‘,{‘form‘:f})
#!/usr/bin/env python# -*- coding:utf-8 -*-from django import forms# from app_from import modelsclass Form1(forms.Form): user = forms.CharField( widget=forms.TextInput(attrs={‘class‘: ‘c1‘}), # error_messages={‘required‘: ‘用户名不能为空‘}, ) check_code = forms.CharField( label=‘验证码‘, max_length=4, error_messages={‘required‘: u‘验证码不能为空‘, ‘invalid‘: u‘验证码不正确‘}, )
{% extends "temp.html" %}{% block login %} <form action="/login/" method="POST"> <div class="input_group"> {{form.user}} {% if error.user.0 %} <span>{{error.user.0}}</span> {% endif %} <div> {{form.check_code}} {% if error.check_code.0 %} <span id="aaa">{{ ccc }}</span> {% endif %} <img src=http://www.mamicode.com/"/check_code/" onclick="ChangCode()" id="imgCode"> </div> </div> <div> <input type="submit" value=http://www.mamicode.com/"提交"> </div> </form> <script src=http://www.mamicode.com/"/static/js/jquery-1.12.4.js"></script> <script> console.log($("#aaa").val()) function ChangCode() { var code = document.getElementById(‘imgCode‘) code.src += ‘?‘ } </script>{% endblock %}
django之form表单验证
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