BBS注册功能

BBS注册功能

一、后端

1.组件校验数据

"""
@author RansySun
@create 2019-11-03-11:35
"""
from django import forms
from django.forms import widgets
from app import models

class MyRegForm(forms.Form):
    """创建注册标签"""
    username = forms.CharField(min_length=3, max_length=9, label='用户名',
                               error_messages={
                                   'min_length': '用户名不能少于六位',
                                   'max_length': '用户名不能大于九位',
                                   'required': '用户名不能为空'
                               }, widget=widgets.TextInput(attrs={'class': 'form-control'}))

    password = forms.CharField(min_length=3, max_length=8, label='密 码',
                               error_messages={
                                   'min_length': '密码不能少于六位',
                                   'max_length': '密码不能多于八位',
                                   'required': '密码不能为空'
                               }, widget=widgets.PasswordInput(attrs={'class': 'form-control'}))
    confirm_password = forms.CharField(min_length=3, max_length=8, label='确认密码',
                                       error_messages={
                                           'min_length': '确认密码不能少于六位',
                                           'max_length': '确认密码不能多于八位',
                                           'required': '确认密码不能为空'
                                       }, widget=widgets.PasswordInput(attrs={'class': 'form-control'}))

    email = forms.EmailField(label='邮箱',
                             error_messages={
                                 'required': '邮箱不能为空',
                                 'invalid': '邮箱格式不正确'
                             }, widget=widgets.EmailInput(attrs={'class': 'form-control'}))

    def clean_username(self):
        """局部钩子,判断用户是否已经存在"""
        username = self.cleaned_data.get('username')
        user_obj = models.UserInfo.objects.filter(username=username)
        if user_obj:
            self.add_error('username', "用户已经存在")

        return username

    def clean(self):
        """全局钩子, 判断用户名是否相同"""
        password = self.cleaned_data.get('password')
        confirm_password = self.cleaned_data.get('confirm_password')

        if not (password == confirm_password):
            self.add_error('confirm_password', '两次密码不一致')

        return self.cleaned_data

2.注册功能实现

# url.py
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^register/', views.register),  # 注册
]
# views.register
def register(request):
    """
    注册功能实现
    :param request:
    :return:
    """
    # 组件校验数据
    form_obj = MyRegForm()

    if request.method == 'POST':

        # 向前台返回结果信息
        back_dic = {'code': 1000, "msg": ''}

        form_obj = MyRegForm(request.POST)
        # print(request.POST)
        # print(request.FILES)
        # 校验数据

        if form_obj.is_valid():  # 验证所有表单是否全部通过
            # form_obj.cleaned_data  # {'username': 'randy', 'password': '123456', 'confirm_password': '123456', 'email': '2214644978@qq.com'}
            cleaned_data = form_obj.cleaned_data  # 所有验证通过的键值对
            # 移除确认密码
            cleaned_data.pop('confirm_password')

            file_obj = request.FILES.get('avatar')  # 获取用户头像, 如果没有上传, 则为空

            if file_obj:
                """
                获取用户上传头像之后,一定要判断用户是否上传了,
                如果没有上传,字典中就不会加avatar键值对
                """

                cleaned_data['avatar'] = file_obj

            # 通过 ** 打散字典的方式作为参数, key必须与数据库中字段中一模一样
            models.UserInfo.objects.create_user(**cleaned_data)

            back_dic['url'] = '/login/'

        else:
            # 向前台返回发生错误信息
            back_dic['code'] = 2000
            back_dic['msg'] = form_obj.errors
            print(back_dic)
        return JsonResponse(back_dic)
    return render(request, '01register.html', locals())

二、前端设计

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    {% load static %}
    <script src="{% static 'bootstrap/js/jquery.js' %}"></script>
    <script src="{% static 'bootstrap/js/bootstrap.js' %}"></script>
    <link rel="stylesheet" href="{% static 'bootstrap/css/bootstrap.css' %}">
</head>
<body>

<div class="container">
    <div class="row">
        <div class="col-md-6 col-lg-offset-3">
            <h1 class="text-center">注册界面</h1>
            <form action="" class="form-horizontal" id="myform" novalidate>
                {% csrf_token %}
                {#                标签 #}

                {% for f_obj in form_obj %}
                    <div class="form-group">
                        <label for="{{ f_obj.auto_id }}">{{ f_obj.label }} </label>

                        {{ f_obj }}
                        <span style="color:red" class="pull-right"></span>
                    </div>

                {% endfor %}
                {#              头像通过点击图片上传头像,隐藏file标签#}
                <div class="form-group">
                    <label for="myfile">
                        头像<img src="{% static 'img/default1.png' %}" alt="" id="avatar" width="80px" height="80px"
                               style="margin: 10px 10px;border-radius: 50%">
                    </label>

                    <input type="file" id="myfile" name="avatar" style="display: none;">
                </div>
                {#              注册按钮,通过ajax检测登录信息, 报错提示#}
                <input type="button" class="btn btn-success pull-right" id='commit' value="注册">
            </form>

        </div>
    </div>
</div>

<script>
    // 文件阅读器,
    $('#myfile').change(function () {
        // 将图片改为用户上传的图片
        // 1.产生文件阅读器队形
        var fileReader = new FileReader();

        // 2.获取用户上传的文件
        var fileUp = $(this)[0].files[0];

        // 3.让文件阅读器读取该文件
        fileReader.readAsDataURL(fileUp);
        // 4.利用文件阅读器将文件展示出来
        fileReader.onload = function () {
            $('#avatar').attr('src', fileReader.result)
        }

    });

    $('#commit').on('click', function () {
        var formData = new FormData();
        // serializeArray() 获取form表单中的键值对, each循环获取数组中内容
        $.each($('#myform').serializeArray(), function (index, obj) {
            formData.append(obj.name, obj.value)

        });

        // 添加上传的图片
        formData.append('avatar', $('#myfile')[0].files[0]);

        $.ajax({
            url: '',
            type: 'post',
            data: formData,
            contentType:false,
            processData:false,
            success: function (data) {
                if (data.code == 1000) {
                    window.location.href = data.url
                }else {
                   $.each(data.msg, function (index, obj) {
                       // data.msg是字段,所以index是key, obj value值是一个报错的数组信息
                       // 通过index手动拼接input框字段
                       var tagId = '#id_'+index;
                       {#alert(tagId)#}

                       // 获取出错的标签下面的span标签添加报错的信息,给父标签添加一个红色错误边框
                       $(tagId).next().text(obj[0]).parent().addClass('has-error')

                   });
                }
            }
        });

        $('input').focus(function () {
           $(this).next().text('').parent().removeClass('has-error')
        });
    });
</script>
</body>
</html>

img

img

posted @ 2019-11-17 18:44  RandySun  阅读(378)  评论(0编辑  收藏  举报