09-项目实战-管理员列表

# 1. 依赖于工具类 -md5_date.py
# 2. 依赖于工具类 -pagemtion.py
# 3. 依赖于工具类 -bootstrap.py

1. 创建admin表

# app --> models.py

from django.db import models

class Admin(models.Model):
    """管理员表"""
    username = models.CharField(verbose_name="用户名", max_length=32)
    password = models.CharField(verbose_name="密码", max_length=64)

    # 关联的字段是一个对象,需要加上__str__返回字段
    def __str__(self):
        return self.username

2. 创建路由(url)

# 项目-->urls.py

from bbc_list.views import login, home_page, order, phone, admin
urlpatterns = [
 # 管理员列表
    path("admin/list/", admin.admin_list),
    path("admin/add/", admin.admin_add),
    path("admin/<int:nid>/update/", admin.admin_update),
    path("admin/<int:nid>/delete/", admin.admin_delete),
    path('admin/<int:nid>/reset/', admin.admin_reset),]

3. 创建视图函数

# app-->views-->admin.py
# 模块导入,先写内置-第三方-自定义
from django.core.exceptions import ValidationError
from django.shortcuts import render, redirect

from bbc_list import models
from bbc_list.utils.pagemtion import Pagination
from bbc_list.utils.md5_data import md5


def admin_list(request):
    """管理员列表"""

    # 构建搜索
    data_dict = {}
    search_data = request.GET.get("q", "")  # 有值的话拿值,没值空字符串
    if search_data:
        data_dict["username__contains"] = search_data

    # 根据搜索条件渠数据库获取
    queryset = models.Admin.objects.filter(**data_dict)

    # 分页
    page_object = Pagination(request, queryset)
    context = {
        "queryset": page_object.page_queryset,
        "page_string": page_object.html(),
        "search_data": search_data

    }

    return render(request, "admin_list.html", context)


from bbc_list.utils.bootstrap import BootStrapModelForm
from django import forms


class AdminModelForm(BootStrapModelForm):
    """添加一个确认密码的输入框,这个字段在数据库里是没有的"""
    confire_password = forms.CharField(label="确认密码",
                                       # render_value=True:点击确认后不清空密码
                                       widget=forms.PasswordInput(render_value=True)  # render_value=True 定义密码保密显示
                                       )

    class Meta:
        model = models.Admin
        fields = ["username", "password", "confire_password"]
        widgets = {
            "password": forms.PasswordInput(render_value=True)
        }

    def clean_password(self):
        """获取密码加密"""
        pwd = self.cleaned_data.get("password")
        return md5(pwd)

    def clean_confire_password(self):
        """钩子方法,获取密码和确认密码"""
        # print(self.cleaned_data)  # (self.cleaned_data)  # 验证通过后,里面所有的内容
        pwd = self.cleaned_data.get("password")  # 此时获取的pwd就是加完秘的
        confire = md5(self.cleaned_data.get("confire_password"))
        if confire != pwd:
            raise ValidationError("密码不一致")

        return confire  # return 返回的什么保存到数据库的值就是什么


def admin_add(request):
    """新建管理员"""
    title = "新建管理员"
    if request.method == "GET":
        form = AdminModelForm()
        return render(request, "change.html", {"form": form, "title": title})

    form = AdminModelForm(data=request.POST)
    if form.is_valid():
        # {'username': 'admin', 'password': '123', 'confirm_password': '321'}
        # print(form.cleaned_data)  # 验证通过后,里面所有的内容
        form.save()
        return redirect("/admin/list/")
    return render(request, "change.html", {"form": form, "title": title})  # 如果有错误的话会自动效验


class AdminUpdate(BootStrapModelForm):
    class Meta:
        model = models.Admin
        fields = ["username"]


def admin_update(request, nid):
    """编辑"""

    # 判断路径中的nid是否正确,  nid / None
    row_object = models.Admin.objects.filter(id=nid).first()
    if not row_object:
        # 方式一: 写一个提示错误的页面
        # return render(request, "error.html", {"msg": "数据不存在"})

        # 方式二: 跳转回首页
        return redirect("/admin/list/")
    title = "编辑管理员"

    if request.method == "GET":
        form = AdminUpdate(instance=row_object)  # instance=row_object:显示默认值
        return render(request, "change.html", {"form": form, "title": title})  # 如果有错误的话会自动效验

    form = AdminUpdate(data=request.POST, instance=row_object)
    if form.is_valid():
        form.save()
        return redirect("/admin/list/")
    return render(request, "change.html", {"form": form, "title": title})  # 如果有错误的话会自动效验


def admin_delete(reuquest, nid):
    """删除"""
    models.Admin.objects.filter(id=nid).delete()
    return redirect("/admin/list/")


class AdminReset(BootStrapModelForm):
    # 添加一个确认密码的输入框,这个字段是数据库中没有的
    confirm_password = forms.CharField(label="确认密码",
                                       # render_value=True:点击确认后不清空密码
                                       widget=forms.PasswordInput(render_value=True)  # 定义密码密保显示
                                       )

    class Meta:
        model = models.Admin
        fields = ["password", "confirm_password"]
        widgets = {
            "password": forms.PasswordInput(render_value=True)

        }

    def clean_password(self):  # 获取密码加密
        pwd = self.cleaned_data.get("password")
        md5_data = md5(pwd)

        # 去数据库效验当前密码和新输入的密码是否一致
        # self.instance就是下面代码中传入的对象 .pk:就是路径中的id
        exists = models.Admin.objects.filter(id=self.instance.pk, password=md5_data).exists()
        if exists:
            raise ValidationError("密码不能与之前相同")
        return md5_data

    def clean_confirm_password(self):  # 钩子方法: 获取密码和确认密码
        # print(self.cleaned_data)  # (self.cleaned_data)  # 验证通过后,里面所有的内容
        pwd = self.cleaned_data.get("password")
        confirm = md5(self.cleaned_data.get("confirm_password"))
        if confirm != pwd:
            raise ValidationError("密码不一致")
        return confirm  # return 返回的什么保存到数据库的值就是什么


def admin_reset(request, nid):
    """重置密码"""
    row_object = models.Admin.objects.filter(id=nid).first()
    if not row_object:
        return redirect("/admin/list/")

    title = "重置密码-{}".format(row_object.username)

    if request.method == "GET":
        form = AdminReset()
        return render(request, "change.html", {"form": form, "title": title})  # 如果有错误的话会自动效验

    form = AdminReset(data=request.POST, instance=row_object)
    if form.is_valid():
        form.save()
        return redirect("/admin/list/")
    return render(request, "change.html", {"form": form, "title": title})  # 如果有错误的话会自动效验

4. 创建html页面

# templates-->admin_list.html

{% extends 'one.html' %}

{% block content %}
<div class="container">


    <div style="margin-bottom:10px;" class="clearfix">
        <a class="btn btn-success" href="/admin/add/">
            <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
            新建管理员</a>

        <div style="float:right;width:300px;">
            <form method="get">
                <div class="input-group">

                    <input type="text" name="q" class="form-control" placeholder="关键字"
                           value="{{ search_data }}">
                    <span class="input-group-btn">
                    <button class="btn btn-default" type="submit">
                        <span class="glyphicon glyphicon-search" aria-hidden="true"></span>
                    </button>
                  </span>

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

        <a class="btn btn-success" href="/phone/add/">
            <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>
            新建手机号ModelForm</a>
    </div>

    <div class="panel panel-default">
        <!-- Default panel contents -->
        <div class="panel-heading">
            <span class="glyphicon glyphicon-th-list" aria-hidden="true"></span>
            管理员列表
        </div>

        <!-- Table -->
        <table class="table table-bordered">
            <thead>
            <tr>
                <th>ID</th>
                <th>用户名</th>
                <th>密码</th>
                <th>重置密码</th>
                <th>操作</th>
            </tr>
            </thead>
            <tbody>
            {% for obj in queryset %}
            <tr>
                <th>{{ obj.id }}</th>
                <th>{{ obj.username }}</th>
                <th>*******</th>
                <td>
                    <a href="/admin/{{ obj.id }}/reset/">重置密码</a>
                </td>
                <td>
                    <a class="btn btn-primary btn-xs" href="/admin/{{ obj.id }}/update/">编辑</a>
                    <a class="btn btn-danger btn-xs" href="/admin/{{ obj.id }}/delete/">删除</a>
                </td>
            </tr>
            {% endfor %}

            </tbody>
        </table>
    </div>

    <ul class="pagination">
        {{ page_string }}
    </ul>

</div>
{% endblock %}

# templates-->change.html

{% extends 'one.html' %}

{% block content %}
<div class="container">
    <div class="panel panel-default">
        <div class="panel-heading">
            <h3 class="panel-title">{{ title }}</h3>
        </div>
        <div class="panel-body">
            <!--            novalidate: 关掉浏览器的校验-->
            <form method="post" novalidate>
                {% csrf_token %}

                {% for field in form %}
                <div class="form-group">
                    <label>{{ field.label }}</label>
                    <!--                    <input type="text" class="form-control" placeholder="姓名" name="user">-->
                    {{ field }}
                    <span style="color:red;"> {{ field.errors.0 }}</span>
                </div>
                {% endfor %}

                <button type="submit" class="btn btn-primary">提 交</button>
            </form>
        </div>
    </div>
</div>


{% endblock %}

# add 和 update 和 reset   添加,修改,重置密码 都使用 change.html页面