标签：分享 The query edit states filter style 信息 obj
urls：
from django.contrib import admin from django.urls import path,re_path from first import views urlpatterns = [ path(‘admin/‘, admin.site.urls), path(‘index/‘,views.index, name=‘index‘), #显示的主界面 # path(‘one/‘,views.one) path(‘add/‘,views.add,name=‘add‘), #添加界面 # re_path(‘del_me/(?P<id>\d+)‘,views.del_message,name = ‘edit_book‘), re_path(‘del_book/‘,views.del_message,name=‘d_book‘), #删除 re_path(‘edit_book/(\d+)/‘,views.edit_book,name =‘edit_book‘), #编辑 re_path(‘login/‘,views.login,name=‘login‘), #登陆 path(‘logout/‘,views.logout, name=‘logout‘), #注销 ]
views:
from django.shortcuts import render,redirect,HttpResponse,reverse from first.models import Book,Publish,Author,Gfriend,User import json import datetime # Create your views here. # 等一一个装饰器来验证是否可以登陆后进行操作 def required_login(func): def inner(*args, **kwargs): request = args[0] # 因为你的参数实在args内 所以你的接收的内容也是args if request.COOKIES.get(‘is_login‘): return func(*args, **kwargs) else: return redirect(reverse(‘login‘)) return inner @required_login def index(request): book_obj = Book.objects.all() author_obj = Author.objects.all() publish_obj = Publish.objects.all() # book_author = Book.authors.all() # print(book_obj) # print(1111) return render(request, ‘index.html‘,locals()) @required_login def add(request): author_obj = Author.objects.all() publish_obj = Publish.objects.all() if request.method =="POST": name = request.POST.get(‘name‘) price = request.POST.get(‘price‘) dat = request.POST.get(‘datetime‘) publish = request.POST.get(‘publish‘) author_list =request.POST.getlist(‘authors‘) #获取的作者是多个就需要用getlist来获取 print(author_list) book = Book.objects.create(name = name,price = price,date = dat,publish_id = publish ) # book.publish_id.add(publish) book.authors.set(author_list) #用set依次添加 return redirect(‘/index/‘) # ut = reverse(‘add‘) return render(request,‘add.html‘,locals()) @required_login def del_message(request): del_id = request.POST.get(‘del_id‘) # Book.objects.filter(id = del_id).delete() del_book = Book.objects.filter(id = del_id) # print(del_book) del_book.delete() # return redirect(‘/index/‘ #删除成功过后你需要进行发送一个信息 不能重定向了 因为用的是ajax局部刷新的 return HttpResponse(json.dumps({‘status‘:1})) #返送一个序列化字符串 @required_login def edit_book(request,edid): book_obj = Book.objects.get(id = edid) author_obj = Author.objects.all() publish_obj = Publish.objects.all() if request.method == ‘POST‘: name = request.POST.get(‘name‘) price = request.POST.get(‘price‘) #get这个值是获取你前端界面的name的属性 value的属性是显示的属性 date = request.POST.get(‘datetime‘) publish = request.POST.get(‘publish‘) authors = request.POST.getlist(‘authors‘) book_obj.name = name book_obj.price = price book_obj.date = date book_obj.publish_id = publish book_obj.authors.set(authors) book_obj.save() return redirect(‘/index/‘) return render(request,‘edit_book.html‘,locals()) # @required_login def login(request): if request.method == ‘POST‘: name = request.POST.get(‘user‘) pwd = request.POST.get(‘pwd‘) user_obj = User.objects.filter(name = name,pwd=pwd) print(user_obj) user_obj = user_obj.first() #因为你取到的user_obj是一个queryset所以你要进行取到第一个是对象 if user_obj: #登陆成功 # 然后用cookie ret = redirect(reverse(‘index‘)) #登陆成功后跳转到index界面 这个用的反向解析 ret.set_cookie(‘name‘,name) ret.set_cookie(‘pwd‘,pwd) ret.set_cookie(‘is_login‘,True) #然后你求登陆时间 选哟调用你你数据库中的上一次登陆成功后存储的时间 ret.set_cookie(‘last_time‘,user_obj.date) user_obj.date = datetime.datetime.now() #把你这一次登陆的时间再设置回数据库 user_obj.save() return ret return render(request,‘login.html‘) @required_login def logout(request): ret = redirect(reverse(‘login‘)) #退还到你的登陆框 ret.delete_cookie(‘is_login‘) ret.delete_cookie(‘user‘) ret.delete_cookie(‘last_time‘) return ret
models:(数据库)：
from django.db import models # Create your models here. class Book(models.Model): name = models.CharField(max_length = 30) price = models.DecimalField(max_digits=30,decimal_places=3) date = models.DateTimeField() publish = models.ForeignKey(to="Publish",to_field=‘id‘,on_delete = models.CASCADE) authors = models.ManyToManyField(to=‘Author‘) class Publish(models.Model): title = models.CharField(max_length = 30) addr = models.CharField(max_length = 30) class Author(models.Model): name = models.CharField(max_length = 30) addr = models.CharField(max_length = 30) gf = models.OneToOneField(to=‘Gfriend‘,to_field=‘id‘,on_delete=models.CASCADE) class Gfriend(models.Model): name = models.CharField(max_length =30) age = models.IntegerField() class User(models.Model): name = models.CharField(max_length = 30) pwd = models.IntegerField() date = models.DateTimeField()
template：（前端界面）
index(显示的主界面)：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.css" rel="stylesheet"> </head> <body> <div class="bs-example " data-example-id="inverted-navbar "> <nav class="navbar navbar-inverse"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header "> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-9" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">图书管理</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse pull-right" id="bs-example-navbar-collapse-9"> <ul class="nav navbar-nav"> <li class="active"><a href="#">{{ request.COOKIES.name }}</a></li> <li><a href="#">{{ request.COOKIES.last_time}}</a></li> <li class =‘btn-primary‘><a href="{% url ‘logout‘ %}">注销</a></li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> </div> <table class="table table-hover"> <thead> <a href="{% url ‘add‘ %}" class="btn btn-primary ">添加</a> <tr> <th>序号</th> <th>名字</th> <th>价格</th> <th>出版日期</th> <th>出版社</th> <th>作者</th> <th>操作</th> <th>操作</th> </tr> </thead> <tbody> {% for foo in book_obj %} <tr> <th scope="row">{{ forloop.counter }}</th> {# {{ forloop.count 是自动为它排序的 }}#} <td>{{ foo.name }}</td> <td>{{ foo.price }}</td> <td>{{ foo.date|date:‘Y-m-d‘ }}</td> <td>{{ foo.publish.title }}</td> <td> {% for i in foo.authors.all %} {# {% for i in book_author %}#} {% if not forloop.last %} {{ i.name }}{{ ‘|‘ }} {% else %} {{ i.name }} {% endif %} {% endfor %} </td> <td><a href="{% url ‘edit_book‘ foo.id %}" class="tianjia btn btn-warning">编辑</a></td> <td><a class="delet btn btn-danger" edit_id="{{ foo.id }}">删除</a></td> </tr> {% endfor %} </tbody> </table> <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script> {% csrf_token %} <script> $(‘.btn-danger‘).click(function () { _this = $(this) {#alert(_this.attr(‘edit_id‘));#} $.ajax({ url:{% url ‘d_book‘ %}, type: ‘post‘, data: { del_id: _this.attr(‘edit_id‘), csrfmiddlewaretoken: $("[name=‘csrfmiddlewaretoken‘]").val() }, success: function (data) { console.log(data); var data = JSON.parse(data); {# 把接收过来的信息反序列化#} if (data.status) { _this.parent().parent().remove() } } }) }) </script> </body> </html>
add(添加书籍)：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.css" rel="stylesheet"> <style> .conten { margin-top: 50px; } </style> </head> <body> <div class="conten"> <div> <div class="container"> <div class="bs-example" data-example-id="form-validation-states"> <form method="post" action="{% url ‘add‘ %}"> {% csrf_token %} <div class="form-group has-success"> <label class="control-label" for="control-label">书籍名称</label> <input type="text" class="form-control" id="control-label" aria-describedby="helpBlock2" name="name"> </div> <div class="form-group has-warning"> <label class="control-label" for="inputWarning">价格</label> <input type="text" class="form-control" id="inputWarning" name="price"> </div> <div class="form-group has-error"> <label class="control-label" for="inputError1">出版日期</label> <input type="date" class="form-control" id="inputError1" name="datetime"> </div> <div class="form-group has-warning"> <label class="control-label" for="inputWarning1">出版社</label> {# <input type="text" class="form-control" id="inputWarning1" name="publish">#} <select name="publish" id="inputWarning1" class=" form-control"> {% for foo in publish_obj %} <option value="{{ foo.id }}">{{ foo.title }}</option> {% endfor %} </select> </div> <div class="form-group has-success"> <label class="control-label" for="inputSuccess1">作者</label> {# <input type="text" class="form-control" id="inputSuccess1" aria-describedby="helpBlock2" name="authors" multiple>#} <select name="authors" id="inputSuccess1" class="form-control" multiple> {% for f in author_obj %} <option value="{{ f.id }}">{{ f.name }}</option> {% endfor %} </select> </div> <input type="submit" value="提交"/> </form> </div> </div> </div> </div> </body> </html>
编辑：（edit_book）
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.css" rel="stylesheet"> <style> .conten { margin-top: 50px; } </style> </head> <body> <div class="conten"> <div> <div class="container"> <div class="bs-example" data-example-id="form-validation-states"> <form method="post" action=""> {% csrf_token %} <div class="form-group has-success"> <label class="control-label" for="control-label">书籍名称</label> <input type="text" class="form-control" id="control-label" aria-describedby="helpBlock2" name="name" value={{ book_obj.name }}> </div> <div class="form-group has-warning"> <label class="control-label" for="inputWarning">价格</label> <input type="text" class="form-control" id="inputWarning" name="price" value ={{ book_obj.price }}> </div> <div class="form-group has-error"> <label class="control-label" for="inputError1">出版日期</label> <input type="date" class="form-control" id="inputError1" name="datetime" value={{ book_obj.date|date:‘Y-m-d‘ }}> </div> <div class="form-group has-warning"> <label class="control-label" for="inputWarning1">出版社</label> {# <input type="text" class="form-control" id="inputWarning1" name="publish">#} <select name="publish" id="inputWarning1" class=" form-control"> {% for foo in publish_obj %} {{% if book_obj.publish == foo %} <option value="{{ foo.id }}" selected>{{ foo.title }}</option> {% else %} <option value="{{ foo.id }}">{{ foo.title }}</option> {% endif %}} {# <option value="{{ foo.id }}">{{ foo.title }}</option>#} {% endfor %} </select> </div> <div class="form-group has-success"> <label class="control-label" for="inputSuccess1">作者</label> {# <input type="text" class="form-control" id="inputSuccess1" aria-describedby="helpBlock2" name="authors" multiple>#} <select name="authors" id="inputSuccess1" class="form-control" multiple> {% for f in author_obj %} {% if f in book_obj.authors.all %} <option value="{{ f.id }}" selected>{{ f.name }}</option> {# selected是默认选中的意思#} {% else %} <option value="{{ f.id }}">{{ f.name }}</option> {% endif %} {# <option value="{{ f.id }}">{{ f.name }}</option>#} {% endfor %} </select> </div> <input type="submit" value="提交"/> </form> </div> </div> </div> </div> </body> </html>
登陆界面：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.css" rel="stylesheet"> <style> body { padding-top: 40px; padding-bottom: 40px; background-color: #eee; } .form-signin { max-width: 330px; padding: 15px; margin: 0 auto; } .form-signin .form-signin-heading, .form-signin .checkbox { margin-bottom: 10px; } .form-signin .checkbox { font-weight: normal; } .form-signin .form-control { position: relative; height: auto; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; padding: 10px; font-size: 16px; } .form-signin .form-control:focus { z-index: 2; } .form-signin input[type="email"] { margin-bottom: -1px; border-bottom-right-radius: 0; border-bottom-left-radius: 0; } .form-signin input[type="password"] { margin-bottom: 10px; border-top-left-radius: 0; border-top-right-radius: 0; } </style> </head> <body> <div class="container"> <form class="form-signin" action="{% url ‘login‘ %}" method="post"> {% csrf_token %} <h2 class="form-signin-heading">Please 登陆</h2> <label for="inputEmail" class="sr-only">Email address</label> <input type="text" id="inputEmail" class="form-control" placeholder="Email address" required="" autofocus="" name="user"> <label for="inputPassword" class="sr-only">Password</label> <input type="password" id="inputPassword" class="form-control" placeholder="Password" required="" name="pwd"> <div class="checkbox"> <label> <input type="checkbox" value="remember-me"> Remember me </label> </div> <button class="btn btn-lg btn-primary btn-block" type="submit">Sign in</button> </form> </div> <!-- /container --> <!-- IE10 viewport hack for Surface/desktop Windows 8 bug --> {# <script src="../../assets/js/ie10-viewport-bug-workaround.js"></script>#} </body> </html>
记得不要忘记配置static你所引入的前端样式 还有settings内的数据库配置：
settings:
配置数据库： DATABASES = { ‘default‘: { ‘ENGINE‘: ‘django.db.backends.mysql‘, ‘NAME‘:‘test‘, # 要连接的数据库，连接前需要创建好 ‘USER‘:‘root‘, # 连接数据库的用户名 ‘PASSWORD‘:‘zhaoyun‘, # 连接数据库的密码 ‘HOST‘:‘127.0.0.1‘, # 连接主机，默认本级 ‘PORT‘:3306 # 端口 默认3306 } } 配置static： STATICFILES = [ os.path.join(BASE_DIR,‘static‘) ]
标签：分享 The query edit states filter style 信息 obj
原文地址：https://www.cnblogs.com/askzyl/p/9278398.html
