Django 登入效验

.py

from django import forms

from student import models

from django.core.exceptions import ValidationError

from django.core.validators import RegexValidator

class RegForm(forms.Form):

    username = forms.CharField(

        max_length=16,

        label="用户名",

        widget=forms.widgets.TextInput(attrs={"class": "form-control"},),

        error_messages={

            "max_length": "用户名最长16位",

            "required": "用户名不能为空",

        }

    )

    password = forms.CharField(

        min_length=6,

        max_length=10,

        label="密码",

        widget=forms.widgets.PasswordInput(attrs={"class": "form-control"},),

        error_messages={

            "max_length": "最小长度为6",

            "required": "密码不能为空",

        }

    )

    re_password = forms.CharField(

        min_length=6,

        max_length=10,

        label="确认密码",

        widget=forms.widgets.PasswordInput(attrs={"class": "form-control"}, render_value=True),

        error_messages={

            "min_length": "密码最少6位",

            "required": "密码不能为空",

        }

    )

    gender = forms.ChoiceField(

        choices=(('男', "男"), ('女', "女")),

        label="性别",

        initial=1,

        widget=forms.widgets.RadioSelect

    )

    age = forms.CharField(

        max_length=10,

        label="年龄",

        widget=forms.widgets.TextInput(attrs={"class": "form-control"}),

    )

    addr = forms.CharField(

        max_length=32,

        label="地址",

        widget=forms.widgets.TextInput(attrs={"class": "form-control"}),

        error_messages={

            "required": "地址不能为空",

        }

    )

    phone = forms.CharField(

        label="手机",

        validators=[

            RegexValidator(r'^1[3-9][0-9]{9}$', '手机格式不正确')

        ],

        widget=forms.widgets.TextInput(attrs={"class": "form-control"}),

        error_messages={

            "required": "手机不能为空"

        }

    )

    # 重写username字段的局部钩子

    def clean_username(self):

        username = self.cleaned_data.get("username")

        is_exist = models.Student.objects.filter(username=username)

        if is_exist:

            # 表示用户名已注册

            self.add_error("username", ValidationError("用户名已存在！"))

        else:

            return username

        # 重写全局的钩子函数， 对确认密码做效验

    def clean(self):

        password = self.cleaned_data.get("password")

        re_password = self.cleaned_data.get("re_password")

        if re_password and re_password != password:

            self.add_error("re_password", ValidationError("两次密码不一致"))

        else:

            return self.cleaned_data

.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>注册</title>

    <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.min.css">

    <link rel="stylesheet" href="/static/mystyle.css">

</head>

<body>

<div class="container">

    <div class="row">

        <div class="col-md-6 col-md-offset-3">

            <form novalidate action="/reg/" method="post" class="form-horizontal reg-form"> {# autocomplete="off"自动补全 #}

                {% csrf_token %}

                <div class="form-group">

                    <label for="{{ form_obj.username.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.username.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.username }}

                    <span class="help-block">{{ form_obj.username.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.password.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.password.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.password }}

                    <span class="help-block">{{ form_obj.password.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.re_password.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.re_password.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.re_password }}

                    <span class="help-block">{{ form_obj.re_password.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.gender.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.gender.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.gender }}

                    <span class="help-block">{{ form_obj.gender.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.age.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.age.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.age }}

                    <span class="help-block">{{ form_obj.age.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.addr.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.addr.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.addr }}

                    <span class="help-block">{{ form_obj.addr.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <label for="{{ form_obj.phone.id_for_label }}" class="col-sm-2 control-label">{{ form_obj.phone.label }}</label>

                <div class="col-sm-10">

                    {{ form_obj.phone }}

                    <span class="help-block">{{ form_obj.phone.errors.0 }}</span>

                </div>

                </div>

                <div class="form-group">

                    <div class="col-md-offset-2 col-sm-10">

                        <button type="submit" class="btn btn-success" id="reg-submit">注册</button>

                    </div>

                </div>

            </form>

        </div>

    </div>

</div>

<script src="/static/jquery-3.3.1.js"></script>

<script src="/static/bootstrap/js/bootstrap.min.js"></script>

{#<script>#}

{#    // 找到头像的input标签绑定change事件#}

{#    $("#id_avatar").change(function(){#}

{#        //alert("123")#}

{#        // 1.读取你选中的那个文件#}

{#        var fileReader = new FileReader();#}

{#        // 取到你选中的那个文件#}

{#        //console.log(this.files[0]);#}

{#        //读取你选中的那个文件#}

{#        fileReader.readAsDataURL(this.files[0]);// 读取文件是需要时间的#}

{#        fileReader.onload = function () {#}

{#            //2.登上一部读完文件之后才把文件加载到img标签中#}

{#            $("#avatar-img").attr("src", fileReader.result);#}

{#        };#}

{#    });#}

{#    // AJAX提交注册的数据#}

{#    $("#reg-submit").click(function () {#}

{#        // 取到用户发送的请求数据,向后端发送AJAX请求#}

{#        //var username = $("#id_username").val();#}

{#        //var password = $("#id_password").val();#}

{#        //var re_password = $("#id_re_password").val()#}

{#        //var email = $("#id_email").val();#}

{##}

{#        var formData = new FormData()#}

{#        formData.append("username", $("#id_username").val());#}

{#        formData.append("password", $("#id_password").val());#}

{#        formData.append("re_password", $("#id_re_password").val());#}

{#        formData.append("phone", $("#id_phone").val());#}

{#        formData.append("email", $("#id_email").val());#}

{#        formData.append("avatar", $("#id_avatar")[0].files[0]);#}

{#        formData.append("csrfmiddlewaretoken", $("[name='csrfmiddlewaretoken']").val());#}

{#        $.ajax({#}

{#            url:"/reg/",#}

{#            type:"post",#}

{#            processData: false,// 告诉jQuery不要处理我的数据#}

{#            contentType: false,// 告诉jQuery不要设置content类型#}

{#            data:formData,#}

{#            success:function (data) {#}

{#                if(data.status){#}

{#                    //有错误就展示错误#}

{#                    //console.log(data.msg);#}

{#                    //将报错信息写到页面上#}

{#                    $.each(data.msg, function (k,v) {#}

{#                        $("#id_"+k).next("span").text(v[0]).parent().parent().addClass("has-error");#}

{#                    })#}

{#                }else{#}

{#                    //没有错误就跳转到指定页面#}

{#                    location.href = data.msg;#}

{#                }#}

{##}

{#            }#}

{#        });#}

{#        //将所有的input框架定获取焦点事件，将所有的错误信息清空#}

{#        $("form input").focus(function () {#}

{#            $(this).next().text("").parent().parent().removeClass("has-error");#}

{#        })#}

{#    });#}

{#    // 给username input框绑定一个时区焦点的事件， 失去焦点之后就效验用户名是否存在#}

{#    $("#id_username").blur(function() {#}

{#        //$("#id_username").on("input", function () {}) 边写边效验#}

{#        //alert(123);失去焦点就弹窗#}

{#        //取到用户填的值#}

{#        var username = $(this).val();#}

{#        // 发请求#}

{#        $.ajax({#}

{#            url: "/check_username_exist/",#}

{#            type: "get",#}

{#            data: {"username": username},#}

{#            success: function (data) {#}

{#                if (data.status) {#}

{#                    //用户名已被注册#}

{#                    $("#id_username").next().text(data.msg).parent().parent().addClass("has_error");#}

{#                }#}

{#            }#}

{#        })#}

{#    })#}

{#</script>#}

</body>

</html>

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