Django框架 靓号管理(增删改查)
新建一个项目 backend
使用pycharm创建app
startapp app
项目目录
C:\code\backend
├── app
| ├── admin.py
| ├── apps.py
| ├── migrations
| ├── models.py
| ├── tests.py
| ├── views.py
| └── __init__.py
├── backend
| ├── asgi.py
| ├── settings.py
| ├── urls.py
| ├── wsgi.py
| └── __init__.py
├── manage.py
├── templates
└── venv
├── Lib
├── pyvenv.cfg
└── Scripts
创建模型
app/models.py
from django.db import models
# Create your models here.
class PrettyNum(models.Model):
mobile = models.CharField(verbose_name='手机号', max_length=11)
# 想要循序为空 null = True blank =Tree
price = models.IntegerField(verbose_name='价格', default=0)
level_choices = (
(1, "1级"),
(2, '2级'),
(3, '3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="状态", choices=status_choices, default=2)
数据库配置并注册app
backend/settings.py
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
#注册app
'app.apps.AppConfig'
]
#这里使用mysql数据库
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'tmpdb', #这里填写数据名称
'USER': 'root',
'PASSWORD': '自定义数据库密码',
'HOST': 'mysql所在服务器IP',
'PORT':'mysql服务端口',
'OPTIONS':{
"init_command":"SET sql_mode='STRICT_TRANS_TABLES'",
}
}
}
迁移数据模型
makemigrations
migrate
查看数据库表
mysql> show tables;
+----------------------------+
| Tables_in_tmpdb |
+----------------------------+
| app_prettynum |
| auth_group |
| auth_group_permissions |
| auth_permission |
| auth_user |
| auth_user_groups |
| auth_user_user_permissions |
| django_admin_log |
| django_content_type |
| django_migrations |
| django_session |
+----------------------------+
在数据库模拟创建数据
mysql> SELECT * FROM app_prettynum ;
+----+------------+-------+-------+--------+
| id | mobile | price | level | status |
+----+------------+-------+-------+--------+
| 1 | 123456 | 19 | 1 | 1 |
| 2 | 123457686 | 17 | 1 | 1 |
| 3 | 1234576888 | 10 | 1 | 1 |
| 4 | 1234576888 | 10 | 1 | 1 |
| 5 | 1234576888 | 10 | 1 | 1 |
| 6 | 1234576888 | 10 | 1 | 1 |
| 7 | 1234576888 | 10 | 1 | 1 |
+----+------------+-------+-------+--------+
靓号列表
- url
- 函数
- 获取所有靓号
- 通过html+render将靓号罗列出
backend/urls.py
from django.contrib import admin
from django.urls import path
from app import views
urlpatterns = [
path('admin/', admin.site.urls),
# 列表
path('pretty/list/', views.pretty_list),
]
app/views.py
文章来源:https://www.toymoban.com/news/detail-656063.html
from django.shortcuts import render
from app.models import *
# Create your views here.
def pretty_list(req):
"""靓号列表"""
# 选择倒叙排序
queryset = PrettyNum.objects.all().order_by("-price")
return render(req, 'pretty_list.html', {"queryset": queryset})
在app下创建templates目录
app/templates/pretty_list.html
<!DOCTYPE html>
<html>
<head>
<title>靓号列表</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="panel panel-default">
<!-- Default panel contents -->
<div class="panel-heading">Panel heading</div>
<div class="panel-body">
</div>
<!-- Table -->
<table class="table">
<thead>
<tr>
<th>ID</th>
<th>号码</th>
<th>价格</th>
<th>级别</th>
<th>状态</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for obj in queryset %}
<tr>
<th>{{ obj.id }}</th>
<th>{{ obj.mobile }}</th>
<th>{{ obj.price }}</th>
<th>{{ obj.get_level_display }}</th>
<th>{{ obj.get_status_display }}</th>
</tr>
{% endfor %}
</tbody>
</table>
</div>
</body>
</html>
启动服务,访问
准备提交添加
backend/urls.py
from django.contrib import admin
from django.urls import path
from app import views
urlpatterns = [
path('admin/', admin.site.urls),
# 列表
path('pretty/list/', views.pretty_list),
# 添加
path('pretty/add/', views.pretty_add),
]
app/views.py
from django.core.validators import RegexValidator
from django.shortcuts import render, redirect
from django import forms
from app.models import *
# Create your views here.
def pretty_list(req):
"""靓号列表"""
# 选择倒叙排序
queryset = PrettyNum.objects.all().order_by("-price")
return render(req, 'pretty_list.html', {"queryset": queryset})
class PrettyModelForm(forms.ModelForm):
class Meta:
model = PrettyNum
fields = ['mobile', 'price', 'level', 'status']
def pretty_add(request):
"""添加"""
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/')
return render(request, 'pretty_add.html', {"form": form})
app/templates/pretty_add.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>添加</title>
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div style="padding: 100px 100px 10px;">
<form method="post" novalidate>
{% csrf_token %}
{% for filed in form %}
<div>
<label>{{ filed.label }}</label>
{{ filed }}
</div>
{% endfor %}
<button type="submit" class="button">提交</button>
</form>
</div>
</body>
</html>
编辑靓号
- 列表页面:/pretty/数字/edit/
- url
- 函数
- 根据ID获取当前编辑对象
- ModelForm配合,默认显示数据
- 提交修改
backend/urls.py
from django.contrib import admin
from django.urls import path
from app import views
urlpatterns = [
path('admin/', admin.site.urls),
# 列表
path('pretty/list/', views.pretty_list),
# 添加
path('pretty/add/', views.pretty_add),
# 编辑
path('pretty/<int:nid>/edit/', views.pretty_edit),
]
app/views.py
from django.core.validators import RegexValidator
from django.shortcuts import render, redirect
from django import forms
from app.models import *
class PrettyEditModelForm(forms.ModelForm):
mobile = forms.CharField(disabled=True, label="手机号") # 不允许修改
class Meta:
model = PrettyNum
fields = ['mobile', 'price', 'level', 'status']
def pretty_edit(request, nid):
row_obj = PrettyNum.objects.filter(id=nid).first()
if request.method == "GET":
form = PrettyEditModelForm(instance=row_obj)
return render(request, 'pretty_edit.html', {"form": form})
form = PrettyEditModelForm(data=request.POST, instance=row_obj)
if form.is_valid():
form.save()
return redirect('/pretty/list/')
return render(request, 'pretty_edit.html', {"form": form})
app/templates/pretty_edit.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>添加</title>
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div style="padding: 100px 100px 10px;">
<form method="post" novalidate>
{% csrf_token %}
{% for filed in form %}
<div>
<label>{{ filed.label }}</label>
{{ filed }}
</div>
{% endfor %}
<button type="submit" class="button">提交</button>
</form>
</div>
</body>
</html>
查询
根据电话号码查询
app/views.py
#Get方法
def pretty_list(request):
"""靓号列表"""
# 选择倒叙排序
data_dict = {}
val = request.GET.get('q')
queryset = queryset = PrettyNum.objects.all().filter(**data_dict).order_by("-price")
if val:
data_dict["mobile__contains"] = val
queryset = PrettyNum.objects.all().filter(**data_dict).order_by("-price")
return render(request, 'pretty_list.html', {"queryset": queryset})
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