Django--数据管理系统

Django--数据管理系统

数据库操作：

cmd

mysql -u root -p

user sd;

show tables;

插入数据：

insert into app01_prettynum(mobile,price,level,status)values('12345678901',190,1,1);

select * from app01_prettynum;

python内对数据库的操作：

创建数据：

Import pymysql

While True,

	User = input("用户名：")

	If user.upper() == 'Q':

	break

Pwd = input("密码：")

Mobile = input("手机号：")

Conn = pymysql.connect(host="127.0.0.1", port=2206, user='root', passwd="123456", charset='utf8', db='unicom')

Cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)

Sql = "insert into admin(user,password,mobile) values(%s,%s,%s)"

Cursor.execute(sql,[user.pwd,mobile])

conn.commit()

Cursor.close()

Conn.close

运行更新数据库、运行项目：

首先安装

pip install django

查看安装位置：

pip show django

建立、运行app01

python manage.py startapp app01

django-admin startup app01

创建数据库：

DATABASES={

'default':{

'ENGINE':'django.db.backends.mysql',

'NAME':'gzz',

'USER':'root',

'PASSWORD':'123',

'HOST':'127.0.0.1',

'PORT':'3306',

}

}

在setting.py内设置：

DATABASES={

'default':{

'ENGINE':'django.db.backends.mysql',

'NAME':'gzz',

'USER':'root',

'PASSWORD':'123',

'HOST':'127.0.0.1',

'PORT':'3306',

}

}

更新数据库、运行项目：

python manage.py makemigrations

python manage.py migrate

python manage.py r

网页代码继承：

model.PrettyNum.objects.filter(id=12)  #等于12

<!DOCTYPEhtml>

<htmllang="en">

<head>

<metacharset="UTF-8">

<title>Title</title>

</head>

<body>

{% block content %}

{% endblock %}

</body>

</html>

继承模板：

{% extends'layout.html' %}

{% blockcontent %}

<h1>首页</h1>

{% endblock %}

·继承css\JS模板··

{% block css %}

{% endblock %}

框架内代码：

搭建数据库

class PrettyNum(models.Model):

    """靓号"""

    mobile = models.CharField(verbose_name="手机号", max_length=11)

    price = models.IntegerField(verbose_name="价格", default=0)

    level_choices = (

        (1, "1级"),

        (2, "2级"),

        (3, "3级"),

        (4, "4级"),

    )

    level = models.SmallIntegerField(verbose_name="级别", choices=level_choices, default=1)

    status_choices = (

        (1, "已占用"),

        (2, "未使用"),

    )

    status = models.SmallIntegerField(verbose_name="级别", choices=status_choices, default=2)

靓号列表：

from django.core.validators import RegexValidator

from django.core.validators import ValidationError

class PrettyModelForm(forms.ModelForm):

    mobile = forms.CharField(

        label="手机号",

        validators=[RegexValidator(r'^1[3-9]\d{9}$', '手机号格式错误')]

    )

    class Meta:

        model = models.PrettyNum

        # fields = ["mobile",'price','level','status']

        fields = "__all__"

    def __init__(self, *args, **kwargs):

        super().__init__(*args, **kwargs)

        for name, field in self.fields.items():

            field.widget.attrs = {"class": "form-control rounded-3", "placeholder": field.label}

    def clean_mobile(self):

        txt_mobile = self.cleaned_data["mobile"]

        exists = models.PrettyNum.objects.filter(mobile=txt_mobile).exists()

        if exists:

            raise ValidationError("手机号存在")

        return txt_mobile

添加 pretty add

def pretty_add(request):

    """添加靓号"""

    mobile = forms.CharField(

        label="手机号",

        validators=[RegexValidator(r'^1[3-9]\d{9}$', '手机号格式错误')]

    )

    if request.method == "GET":

        form = PrettyModelForm()

        return render(request, 'pretty_add.html', {"form": form})

    form = PrettyModelForm(data=request.POST)

    if form.is_valid():

        form.save()

        return redirect('/pretty/list/')

    else:

        return render(request, 'pretty_add.html', {"form": form})

编辑 pretty edit

class PrettyEditModelForm(forms.ModelForm):

    # 编写手机号不可编辑

    # mobile = forms.CharField(disabled=True, label="手机号")

    mobile = forms.CharField(

        label="手机号",

        validators=[RegexValidator(r'^1[3-9]\d{9}$', '手机号格式错误')]

    )

    class Meta:

        model = models.PrettyNum

        fields = ['mobile', 'price', 'level', 'status']

    def __init__(self, *args, **kwargs):

        super().__init__(*args, **kwargs)

        for name, field in self.fields.items():

            field.widget.attrs = {"class": "form-control rounded-3", "placeholder": field.label}

    def clean_mobile(self):

        txt_mobile = self.cleaned_data["mobile"]

        exists = models.PrettyNum.objects.exclude(id=self.instance.pk).filter(mobile=txt_mobile).exists()

        if exists:

            raise ValidationError("手机号存在")

        return txt_mobile

def pretty_edit(request, nid):

    row_object = models.PrettyNum.objects.filter(id=nid).first()

    if request.method == "GET":

        # 根据ID获取数据库编辑的哪一行数据

        form = PrettyModelForm(instance=row_object)

        return render(request, 'pretty_edit.html', {'form': form})

    form = PrettyEditModelForm(data=request.POST, instance=row_object)  # 对当前行修改数据

    if form.is_valid():

        form.save()

        return redirect('/pretty/list/')

    return render(request, 'pretty_edit.html', {'form': form})

删除 pretty delete

def pretty_delete(request,nid):

    models.PrettyNum.objects.filter(id=nid).delete()

    return redirect('/pretty/list/')

手机号

正则表达式：

    mobile = forms.CharField(

        label="手机号",

        validators=[RegexValidator(r'^1[3-9]\d{9}$', '手机号格式错误')]

    )

html网页代码：

pretty list：

{% extends 'layout.html' %}

{% block content %}

<div class="container">

    <div style="margin-bottom: 10px">

        <a class="btn btn-success" href="/pretty/add/">新建靓号</a>

    </div>

    <table class="table table-striped table-sm">

        <div class="panel-heading"><h5>靓号列表</h5></div>

        <thead>

        <tr>

            <th scope="col">ID</th>

            <th scope="col">号码</th>

            <th scope="col">价格</th>

            <th scope="col">级别</th>

            <th scope="col">状态</th>

            <th scope="col">操作</th>

        </tr>

        </thead>

        <tbody>

        {% for obj in queryset %}

        <tr>

            <th>{{ obj.id }}</th>

            <td>{{ obj.mobile }}</td>

            <td>{{ obj.price }}</td>

            <td>{{ obj.get_level_display }}</td>

            <td>{{ obj.get_status_display }}</td>

            <td>

                <a class="btn btn-primary btn-xs" href="/pretty/{{ obj.id }}/edit/">编辑</a>

                <a class="btn btn-danger btn-xs" href="/pretty/{{ obj.id }}/delete/">删除</a>

            </td>

        </tr>

        {% endfor %}

        </tbody>

    </table>

</div>

{% endblock %}

pretty add:

{% extends 'layout.html' %}

{% block content %}

<div class="modal modal-signin position-static d-block bg-secondary py-5" tabindex="-1" role="dialog" id="modalSignin">

  <div class="modal-dialog" role="document">

    <div class="modal-content rounded-4 shadow">

      <div class="modal-header p-5 pb-4 border-bottom-0">

        <!-- <h1 class="modal-title fs-5" >Modal title</h1> -->

        <h1 class="fw-bold mb-0 fs-2">新建用户</h1>

      </div>

      <div class="modal-body p-5 pt-0">

        <form method="post">

          {% csrf_token %}

          <div class="form-floating mb-3">

            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="姓名" name="user">

            <label for="floatingInput">姓名</label>

          </div>

          <div class="form-floating mb-3">

            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="密码" name="pwd">

            <label for="floatingInput">密码</label>

          </div>

          <div class="form-floating mb-3">

            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="年龄" name="age">

            <label for="floatingInput">年龄</label>

          </div>

          <div class="form-floating mb-3">

            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="工资" name="ac">

            <label for="floatingInput">工资</label>

          </div>

          <div class="form-floating mb-3">

            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="入职时间" name="ctime">

            <label for="floatingInput">入职时间</label>

          </div>

          <div class="form-floating mb-3">

<!--            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="性别" name="title">-->

            <select name="gd" class="form-control">

              {% for item in gender_choices %}

              <option value="{{ item.0 }}">{{ item.1 }}</option>

              {% endfor %}

            </select>

          </div>

          <div class="form-floating mb-3">

<!--            <input type="text" class="form-control rounded-3" id="floatingInput" placeholder="所属部门" name="title">-->

            <select name="dp" class="form-control">

              {% for item in depart_list %}

              <option value="{{ item.id }}">{{ item.title }}</option>

              {% endfor %}

            </select>

          </div>

          <button class="w-100 mb-2 btn btn-lg rounded-3 btn-primary" type="submit">提交</button>

        </form>

      </div>

    </div>

  </div>

</div>

{% endblock %}

pretty list

{% extends 'layout.html' %}

{% block content %}

<div class="modal modal-signin position-static d-block bg-secondary py-5" tabindex="-1" role="dialog" id="modalSignin">

  <div class="modal-dialog" role="document">

    <div class="modal-content rounded-4 shadow">

      <div class="modal-header p-5 pb-4 border-bottom-0">

        <!-- <h1 class="modal-title fs-5" >Modal title</h1> -->

        <h1 class="fw-bold mb-0 fs-2">编辑靓号</h1>

      </div>

      <div class="modal-body p-5 pt-0">

        <form method="post" novalidate>

          {% csrf_token %}

            {% for field in form %}

          <div class="form-group mb-3">

            <label>{{ field.label }}</label>{{ field }}

            <span class="form-group mb-1" style="font-size:12px;color:red">{{ field.errors.0 }}</span>

          </div>

            {% endfor %}

          <button class="w-100 mb-2 btn btn-lg rounded-3 btn-primary" type="submit">提交</button>

        </form>

      </div>

    </div>

  </div>

</div>

{% endblock %}

layout

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

    <link rel="stylesheet" href="https://cdn.staticfile.net/twitter-bootstrap/5.1.1/css/bootstrap.min.css">

</head>

<body>

<div class="container">

    <div class="d-flex flex-wrap align-items-center justify-content-center justify-content-lg-start">

        <a href="/" class="d-flex align-items-center mb-2 mb-lg-0 text-white text-decoration-none">

            <svg class="bi me-2" width="40" height="32" role="img" aria-label="Bootstrap">

                <use xlink:href="#bootstrap"></use>

            </svg>

        </a>

        <ul class="nav col-12 col-lg-auto me-lg-auto mb-2 justify-content-center mb-md-0">

            <li><a href="#" class="nav-link px-2 text-secondary">联通用户管理</a></li>

            <li><a href="/depart/list/" class="nav-link px-2 text-secondary">部门管理</a></li>

            <li><a href="/user/list/" class="nav-link px-2 text-secondary">用户管理</a></li>

            <li><a href="/pretty/list/" class="nav-link px-2 text-secondary">靓号管理</a></li>

        </ul>

        <form class="col-12 col-lg-auto mb-3 mb-lg-0 me-lg-3" role="search">

            <input type="search" class="form-control form-control-dark text-bg-dark" placeholder="Search..."

                   aria-label="Search">

        </form>

        <div class="text-end">

            <button type="button" class="btn btn-outline-dark me-2">登录</button>

            <button type="button" class="btn btn-warning">高治中</button>

        </div>

    </div>

</div>

<div>

        {% block content %}

        {% endblock %}

</div>

<script src="https://cdn.staticfile.net/jquery/1.10.2/jquery.min.js">

</script>

<script src="https://cdn.staticfile.net/twitter-bootstrap/5.1.1/js/bootstrap.min.js"></script>

</body>

</html>