Django后台项目实战之后台菜品类别信息管理

xyh20042024-06-03 3:06

后台菜品类别信息管理

本页面完成项目后台管理的菜品类别信息模块操作

(1). 菜品类别信息数据表：category

  • 在数据库 osdb 中创建 category 表，若此表已存在请跳过

    CREATE TABLE category (
    id int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '菜品分类id',
    shop_id int(11) DEFAULT NULL COMMENT '店铺id',
    name varchar(50) DEFAULT NULL COMMENT '分类名称',
    status tinyint(4) NOT NULL DEFAULT '1' COMMENT '状态：1正常 9删除',
    create_at datetime DEFAULT NULL COMMENT '添加时间',
    update_at datetime DEFAULT NULL COMMENT '修改时间',
    PRIMARY KEY (id)
    ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

(2). 定义模型Model类

  • 进入myadmin应用目录中编辑：myobject/myadmin/models.py 模型文件

    from django.db import models

    #菜品分类信息模型
    class Category(models.Model):
    shop_id = models.IntegerField() #店铺id
    name = models.CharField(max_length=50)#分类名称
    status = models.IntegerField(default=1) #状态:1正常/9删除
    create_at = models.DateTimeField(default=datetime.now) #创建时间
    update_at = models.DateTimeField(default=datetime.now) #修改时间

      class Meta:
      db_table = "category"  # 更改表名

(3). 项目urls路由信息配置

  • 打开根路由文件：myobject/myadmin/urls.py路由文件，编辑路由配置信息

    from django.urls import path
    ...
    from myadmin.views import category

    urlpatterns = [
    ...

      #菜品分类信息管理
  path('category/<int:pIndex>', category.index, name="myadmin_category_index"),
  path('category/load/<int:sid>', category.loadCategory, name="myadmin_category_load"),
  path('category/add', category.add, name="myadmin_category_add"),
  path('category/insert', category.insert, name="myadmin_category_insert"),
  path('category/del/<int:cid>', category.delete, name="myadmin_category_del"),
  path('category/edit/<int:cid>', category.edit, name="myadmin_category_edit"),
  path('category/update/<int:cid>', category.update, name="myadmin_category_update"),

    ]

(4). 编辑视图文件

  • 新建视图文件：myobject/myadmin/views/category.py 视图文件，并进行编辑

    from django.shortcuts import render
    from django.http import HttpResponse
    from django.http import JsonResponse
    from django.core.paginator import Paginator
    from datetime import datetime

    from myadmin.models import Category,Shop

    菜品分类信息

    def index(request,pIndex=1):
    '''浏览信息'''
    smod = Category.objects
    mywhere=[]
    list = smod.filter(status__lt=9)

      # 获取、判断并封装关keyword键搜索
  kw = request.GET.get("keyword",None)
  if kw:
      # 查询店铺名称中只要含有关键字就可以
      list = list.filter(name__contains=kw)
      mywhere.append("keyword="+kw)

  # 获取、判断并封装状态status搜索条件
  status = request.GET.get('status','')
  if status != '':
      list = list.filter(status=status)
      mywhere.append("status="+status)

  #执行分页处理
  pIndex = int(pIndex)
  page = Paginator(list,10) #以10条每页创建分页对象
  maxpages = page.num_pages #最大页数
  #判断页数是否越界
  if pIndex > maxpages:
      pIndex = maxpages
  if pIndex < 1:
      pIndex = 1
  list2 = page.page(pIndex) #当前页数据
  plist = page.page_range   #页码数列表

  #遍历信息，并获取对应的商铺名称，以shopname名封装
  for vo in list2:
      sob = Shop.objects.get(id=vo.shop_id)
      vo.shopname = sob.name
  #封装信息加载模板输出
  context = {"categorylist":list2,'plist':plist,'pIndex':pIndex,'maxpages':maxpages,'mywhere':mywhere}
  return render(request,"myadmin/category/index.html",context)

    def loadCategory(request,sid):
    clist = Category.objects.filter(status__lt=9,shop_id=sid).values("id","name")
    #返回QuerySet对象，使用list强转成对应的菜品分类列表信息
    return JsonResponse({'data':list(clist)})

    def add(request):
    '''加载添加页面'''
    slist = Shop.objects.values("id","name")
    context={"shoplist":slist}
    return render(request,"myadmin/category/add.html",context)

    def insert(request):
    '''执行添加'''
    try:
    ob = Category()
    ob.shop_id = request.POST['shop_id']
    ob.name = request.POST['name']
    ob.status = 1
    ob.create_at = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    ob.update_at = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    ob.save()
    context={"info":"添加成功！"}
    except Exception as err:
    print(err)
    context={"info":"添加失败"}
    return render(request,"myadmin/info.html",context)

    def delete(request,cid):
    '''删除信息'''
    try:
    ob = Category.objects.get(id=cid)
    ob.status = 9
    ob.update_at = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    ob.save()
    context={"info":"删除成功！"}
    except Exception as err:
    print(err)
    context={"info":"删除失败"}

      return JsonResponse(context)
  #return render(request,"myadmin/info.html",context)

    def edit(request,cid):
    '''加载编辑信息页面'''
    try:
    ob = Category.objects.get(id=cid)
    slist = Shop.objects.values("id","name")
    context={"category":ob,"shoplist":slist}
    return render(request,"myadmin/category/edit.html",context)
    except Exception as err:
    context={"info":"没有找到要修改的信息！"}
    return render(request,"myadmin/info.html",context)

    def update(request,cid):
    '''执行编辑信息'''
    try:
    ob = Category.objects.get(id=cid)
    ob.shop_id = request.POST['shop_id']
    ob.name = request.POST['name']
    #ob.status = request.POST['status']
    ob.update_at = datetime.now().strftime("%Y-%m-%d %H:%M:%S")
    ob.save()
    context={"info":"修改成功！"}
    except Exception as err:
    print(err)
    context={"info":"修改失败"}
    return render(request,"myadmin/info.html",context)

(5). 编写模板文件

  • 5.1. 打开父类模板：/templates/myadmin/base.html ，编辑导航栏代码

      ...
  <li class="treeview">
    <a href="category.html"><i class="fa fa-cutlery"></i> <span>菜品管理</span>
      <span class="pull-right-container">
        <i class="fa fa-angle-left pull-right"></i>
      </span>
    </a>
    <ul class="treeview-menu">
      <li><a href="{% url 'myadmin_category_index' 1 %}"> <i class="fa fa-circle-o"></i> 菜品分类</a></li>
      <li><a href="{% url 'myadmin_product_index' 1 %}"> <i class="fa fa-circle-o"></i> 菜品信息</a></li>
    </ul>
  </li>
  ...

  • 5.2. 后台商品类别信息浏览页模板：/templates/myadmin/category/index.html

{% extends "myadmin/base.html" %}

{% block main_body %}
    <!-- Content Header (Page header) -->
    <section class="content-header">
      <h1>
        菜品类别管理
        <small>订餐系统后台管理</small>
      </h1>
      <ol class="breadcrumb">
        <li><a href="#"><i class="fa fa-dashboard"></i> 首页</a></li>
        <li class="active">菜品分类信息管理</li>
      </ol>
    </section>

    <!-- Main content -->
    <section class="content container-fluid">

      <div class="row">
        <div class="col-xs-12">
          <div class="box">
            <div class="box-header">
              <h3 class="box-title"><i class="fa fa-calendar"></i> 菜品分类信息表</h3>

              <div class="box-tools">
                <div class="input-group input-group-sm" style="width: 150px;">
                  <input type="text" name="table_search" class="form-control pull-right" placeholder="Search">

                  <div class="input-group-btn">
                    <button type="submit" class="btn btn-default"><i class="fa fa-search"></i></button>
                  </div>
                </div>
              </div>
            </div>
            <!-- /.box-header -->
            <div class="box-body table-responsive no-padding">
              <table class="table table-hover">
                <tr>
                  <th>ID</th>
                  <th>店铺名称</th>
                  <th>类别名称</th>
                  <th>当前状态</th>
                  <th>添加时间</th>
                  <th>修改时间</th>
                  <th>操作</th>
                </tr>
                {% for vo in categorylist %}
                <tr>
                  <td>{{ vo.id }}</td>
                  <td>{{ vo.shopname }}</td>
                  <td>{{ vo.name }}</td>
                  <td>
                    {% if vo.status == 1 %}
                      <span style="color:green">正常</span>
                    {% elif vo.status == 9 %}
                      <span style="color:red">已删除</span>
                    {% else %}
                      <span style="color:red">未知状态</span>
                    {% endif %}
                  </td>
                  <td width="12%">{{ vo.create_at|date:'Y-m-d' }}</td>
                  <td width="12%">{{ vo.update_at|date:'Y-m-d' }}</td>
                  <td width="25%">
                    <a href="{% url 'myadmin_category_edit' vo.id %}" class="btn btn-success btn-xs">
                      <span class="glyphicon glyphicon-edit" aria-hidden="true"></span> 编辑</a>
                    <button type="button" onclick="doDelete('{% url 'myadmin_category_del' vo.id %}')" class="btn btn-danger btn-xs">
                      <span class="glyphicon glyphicon-trash" aria-hidden="true"></span> 删除</button>
                    <a href="#" class="btn btn-warning btn-xs">
                      <span class="glyphicon glyphicon-search" aria-hidden="true"></span> 查看菜品</a>
                  </td>
                </tr>
                {% endfor %}
              </table>
            </div>
            <!-- /.box-body -->
            <div class="box-footer clearfix">
              <a role="button" href="{% url 'myadmin_category_add' %}" class="btn btn-primary">
                <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> 添加菜品分类</a>
                <ul class="pagination pagination-sm no-margin pull-right">
                    <li><a href="{% url 'myadmin_category_index' pIndex|add:-1 %}?{{mywhere|join:'&'}}"><<</a></li>
                    {% for p in plist %}
                    <li {% if p == pIndex %}class="active"{% endif %}><a href="{% url 'myadmin_category_index' p %}?{{mywhere|join:'&'}}">{{p}}</a></li>
                    {% endfor %}
                    <li><a href="{% url 'myadmin_category_index' pIndex|add:1 %}?{{mywhere|join:'&'}}">>></a></li>
                </ul>
            </div>
          </div>
          <!-- /.box -->
        </div>
      </div>

    </section>
    <!-- /.content -->
{% endblock %}
  • 5.3. 后台商品类别信息添加表单页模板：/templates/myadmin/category/add.html
{% extends "myadmin/base.html" %}


{% block main_body %}
    <!-- Content Header (Page header) -->
    <section class="content-header">
      <h1>
        菜品分类管理
        <small>订餐系统后台管理</small>
      </h1>
      <ol class="breadcrumb">
        <li><a href="#"><i class="fa fa-dashboard"></i> 首页</a></li>
        <li class="active">菜品分类信息管理</li>
      </ol>
    </section>

    <!-- Main content -->
    <section class="content container-fluid">

      <div class="row">
        <div class="col-xs-12">
          <div class="box">
            <div class="box-header">
                <h2 class="box-title"><span class="glyphicon glyphicon-calendar" aria-hidden="true">添加菜品分类信息</h2>
            </div>
            <!-- /.box-header -->
            <!-- form start -->
            <form class="form-horizontal" action="{% url 'myadmin_category_insert' %}" method="post">
                {% csrf_token %}
              <div class="box-body">
                <div class="form-group">
                  <label for="inputEmail3" class="col-sm-2 control-label">店铺名称：</label>

                  <div class="col-sm-4">
                    <select name="shop_id" class="form-control select2" style="width: 100%;">
                      {% for svo in shoplist %}
                        <option value="{{ svo.id }}">{{ svo.name }}</option>
                      {% endfor %}
                    </select>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail3" class="col-sm-2 control-label">类别名称：</label>

                  <div class="col-sm-4">
                    <input type="text" name="name" class="form-control" id="inputText2" placeholder="类别名称" />
                  </div>
                </div>
              </div>
              <!-- /.box-body -->
              <div class="box-footer">
                <div class="col-sm-offset-2 col-sm-10">
                  <button type="submit" class="btn btn-primary">提交</button> &nbsp; 
                  <button type="reset" class="btn btn-default">重置</button>
                <div class="col-sm-offset-2 col-sm-10">
              </div>
              <!-- /.box-footer -->
            </form>
          </div>
          <!-- /.box -->
        </div>
      </div>

    </section>
    <!-- /.content -->
{% endblock %}
  • 5.4. 后台商品信息编辑模板：/templates/myadmin/category/edit.html
{% extends "myadmin/base.html" %}


{% block main_body %}
    <!-- Content Header (Page header) -->
    <section class="content-header">
      <h1>
        菜品分类管理
        <small>订餐系统后台管理</small>
      </h1>
      <ol class="breadcrumb">
        <li><a href="#"><i class="fa fa-dashboard"></i> 首页</a></li>
        <li class="active">菜品分类信息管理</li>
      </ol>
    </section>

    <!-- Main content -->
    <section class="content container-fluid">

      <div class="row">
        <div class="col-xs-12">
          <div class="box">
            <div class="box-header">
                <h2 class="box-title"><span class="glyphicon glyphicon-calendar" aria-hidden="true">编辑菜品分类信息</h2>
            </div>
            <!-- /.box-header -->
            <!-- form start -->
            <form class="form-horizontal" action="{% url 'myadmin_category_update' category.id  %}" method="post">
                {% csrf_token %}
              <div class="box-body">
                <div class="form-group">
                  <label for="inputEmail3" class="col-sm-2 control-label">店铺名称：</label>

                  <div class="col-sm-4">
                    <select name="shop_id" class="form-control select2" style="width: 100%;">
                      {% for svo in shoplist %}
                        <option value="{{ svo.id }}" {% if category.shop_id == svo.id %}selected{% endif %} >{{ svo.name }}</option>
                      {% endfor %}
                    </select>
                  </div>
                </div>
                <div class="form-group">
                  <label for="inputEmail3" class="col-sm-2 control-label">类别名称：</label>

                  <div class="col-sm-4">
                    <input type="text" name="name" value="{{ category.name }}" class="form-control" id="inputText2" placeholder="类别名称" />
                  </div>
                </div>
              </div>
              <!-- /.box-body -->
              <div class="box-footer">
                <div class="col-sm-offset-2 col-sm-10">
                  <button type="submit" class="btn btn-primary">保存</button> &nbsp; 
                  <button type="reset" class="btn btn-default">重置</button>
                <div class="col-sm-offset-2 col-sm-10">
              </div>
              <!-- /.box-footer -->
            </form>
          </div>
          <!-- /.box -->
        </div>
      </div>

    </section>
    <!-- /.content -->
{% endblock %}

6 运行测试

  • 在项目根目录下启动服务，并使用浏览器访问测试：http://localhost:8000/myadmin

    [root@localhost myobject]# pwd
    /python/myobject
    [root@localhost myobject]# ls
    manage.py myadmin myobject myweb static templates
    [root@localhost myobject]# python3 manage.py runserver
    Performing system checks...

    System check identified no issues (0 silenced).

    April 07, 2020 - 16:29:36
    Django version 1.11, using settings 'myobject.settings'
    Starting development server at http://127.0.0.1:8000/
    Quit the server with CONTROL-C.
    ^C[root@localhost myobject]#

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