自定义django admin及其界面

1.在项目目录下新创建一个app,命名为kingadmin,在templates目录下新建kingadmin目录,用来存放相关页面的模板文件,新建一个templatetags目录,用来存放处理前端模板数据的python函数。

项目/kingadmin/templates/kingadmin/base.html   最基础的模板,存放的js与css

DOCTYPE html>
<html lang="zh-CN">
    <head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    
    <meta name="description" content="">
    <meta name="author" content="">
{#    meta全部保留,IE浏览器相关的可要可不要,图标与css也要全部保留#}
    <link rel="icon" href="http://v3.bootcss.com/favicon.ico">
    <title>王腾的个人站点title>
    <link href="/static/css/bootstrap.min.css" rel="stylesheet">
    <link href="/static/css/dashboard.css" rel="stylesheet">
     {% block header-resources %} {% endblock %}
{#    这里留一个block块,可以方便其他网页继承时进行扩展 来添加自定义样式#}
  head>

  <body>
    {% block body %} {% endblock %}
{#     这里留一个block  body块,可以方便其他网页继承时进行扩展 在body里添加自定义的内容#}
    <script src="/static/js/jquery.min.js">script>
    <script src="/static/js/bootstrap.min.js">script>
    <script src="/static/js/holder.min.js">script>
{#    这些js全部保留,js的路径static是settings.py中STATIC_URL = '/static/'对应的STATIC_URL,而不是实际的目录名#}
    <script>
{#        这里是自定义js,点击相应按钮时,按钮变颜色#}
        $(document).ready(function () {
            var current_url = "{{ request.path }}";
            $('.nav-sidebar a[href="{{ request.path }}"]').parent().addClass('active');
        })
    script>
body>html>
View Code

项目/kingadmin/templates/kingadmin/index.html  页面框架

{% extends 'base.html' %}
{#这里写继承base.html#}
{% block body %}
{#    这里在block body里自定义body的内容,要注意写上block body#}
    {% block nav-bar %}
{#        这个block块是页面最上边的导航栏,为了其他页面可自定制导航栏,这里弄一个块,当其它页面写上 {% block nav-bar %}{% endblock %}时#}
{#        其它页面的导航栏位置就不会显示模板的导航栏了#}
    <nav class="navbar navbar-inverse navbar-fixed-top">
      <div class="container-fluid">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
            <span class="sr-only">Toggle navigationspan>
            <span class="icon-bar">span>
            <span class="icon-bar">span>
            <span class="icon-bar">span>
          button>
          <a class="navbar-brand" href="http://v3.bootcss.com/examples/dashboard/#">后台管理a>
        div>
        <div id="navbar" class="navbar-collapse collapse">
          <ul class="nav navbar-nav navbar-right">
            <li><a href="http://v3.bootcss.com/examples/dashboard/#">Dashboarda>li>
            <li><a href="http://v3.bootcss.com/examples/dashboard/#">Settingsa>li>
            <li><a href="http://v3.bootcss.com/examples/dashboard/#">Profilea>li>
            <li class="dropdown">
{#                这里添加一个下拉菜单,也是找的模板上的#}
                <a href="http://v3.bootcss.com/examples/dashboard/#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">{{ request.user.userprofile.name }}<span class="caret">span>a>
                <ul class="dropdown-menu">
                  <li><a href="http://v3.bootcss.com/examples/dashboard/#">首页a>li>
                  <li><a href="/logout">注销a>li>
                ul>
              li>
          ul>
          <form class="navbar-form navbar-right">
            <input type="text" class="form-control" placeholder="Search...">
          form>
        div>
      div>
    nav>
    {% endblock %}
    <div class="container-fluid">
      <div class="row">
          {% block side-bar %}
{#              这里写一个左边栏block块,也是为了其他页面可以自定制#}
        <div class="col-sm-3 col-md-2 sidebar">
          <ul class="nav nav-sidebar">
              {% block side-bar-menu %}
                  {% for role in request.user.userprofile.roles.all %}
                      <h3>h3>
{#                      <li class="active"><a href="http://v3.bootcss.com/examples/dashboard/#">{{ role }}<span class="sr-only">(current)span>a>li>#}
                      {% for menu in role.menus.all %}
                          <li>
                              <a href="{% if menu.url_type == 0 %}{% url menu.url_name  %}{% else %}{{ menu.url_name }}
{#                              这里的{% url menu.url_name  %}就是取得数据库中的url_name,并且将这个url_name与urls.py中的name做比较,相同才可以跳转到相应页面,#}
                                  {% endif %}">{{ menu.name }}a>
                          li>
                      {% endfor %}
                  {% endfor %}
              {% endblock %}
          ul>
        div>
          {% endblock %}
      {% block right-container %}
        <div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2 main">
        {% block right-container-content %}
          <h1 class="page-header">Dashboardh1>
          <div class="row placeholders">
            <div class="col-xs-6 col-sm-3 placeholder">
              <img src="data:image/gif;base64,R0lGODlhAQABAIAAAHd3dwAAACH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==" width="200" height="200" class="img-responsive" alt="Generic placeholder thumbnail">
              <h4>Labelh4>
              <span class="text-muted">Something elsespan>
            div>
            <div class="col-xs-6 col-sm-3 placeholder">
              <img src="data:image/gif;base64,R0lGODlhAQABAIAAAHd3dwAAACH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==" width="200" height="200" class="img-responsive" alt="Generic placeholder thumbnail">
              <h4>Labelh4>
              <span class="text-muted">Something elsespan>
            div>
            <div class="col-xs-6 col-sm-3 placeholder">
              <img src="data:image/gif;base64,R0lGODlhAQABAIAAAHd3dwAAACH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==" width="200" height="200" class="img-responsive" alt="Generic placeholder thumbnail">
              <h4>Labelh4>
              <span class="text-muted">Something elsespan>
            div>
            <div class="col-xs-6 col-sm-3 placeholder">
              <img src="data:image/gif;base64,R0lGODlhAQABAIAAAHd3dwAAACH5BAAAAAAALAAAAAABAAEAAAICRAEAOw==" width="200" height="200" class="img-responsive" alt="Generic placeholder thumbnail">
              <h4>Labelh4>
              <span class="text-muted">Something elsespan>
            div>
          div>
          <h2 class="sub-header">Section titleh2>
        {% endblock %}
        div>
          {% endblock %}
      div>
    div>
{% endblock %}
View Code

项目/kingadmin/templates/kingadmin/app_index.html  app页面

{% extends 'kingadmin/index.html' %}
{% load kingadmin_tags %}
{#这里要使用tags的原因是:前端模板不允许变量有下划线,但是为了获得表名,python函数_mtea是有下划线的,所有要用tags#}
{% block right-container-content %}
    {% for app,app_tables in size.registered_sites.items %}
        <table class="table table-hover">
            <thead>
                <tr>
                    <h3>{{ app }}h3>
                tr>
            thead>
              <tbody>
                {% for model_name,admin_class in app_tables.items %}
                    <tr>
                       {#这里设置相关链接的url,这里要使用tags的原因是:前端模板不允许变量有下划线,但是为了获得表名,python函数_mtea是有下划线的,所有要用tags#}
                      <th scope="row"><a href="/kingadmin/{% get_app_name admin_class.model %}/{% get_model_name admin_class.model %}">{% get_model_verbose_name admin_class.model %}a>  {{ admin_class }}th>
                    tr>
                {% endfor %}
              tbody>
        table>
    {% endfor %}
{% endblock %}
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项目/kingadmin/templates/kingadmin/table_data_list.html  每张表的详细展示页面

{% extends 'kingadmin/index.html' %}
{% load kingadmin_tags %}
{% block right-container-content %}
     <h4>{% get_model_verbose_name admin_obj.model  %}h4>
        <table class="table table-hover">
            <thead>
                <tr>
{#                    aadmin_obj其实就是注册表的表对象,在views函数里#}
                    {% for column in admin_obj.list_display %}
                        <th>{{ column }}th>
                    {% endfor %}
                tr>
            thead>
              <tbody>
                    {% for obj in admin_obj.querysets %}
                        <tr>
                            {%  build_table_row admin_obj obj %}
                        tr>
                    {% endfor %}
              tbody>
        table>
{% endblock %}
View Code

项目/kingadmin/templatetags/kingadmin_tags.py  标签函数,用来存放处理前端数据的标签函数

#!/usr/bin/python
# -*- coding:utf-8 -*-
# author:wt

from django import template
from django.utils.safestring import mark_safe
register = template.Library()

@register.simple_tag
def get_model_verbose_name(model_obj):  # 获取表的中文名,
    model_name = model_obj._meta.verbose_name if model_obj._meta.verbose_name else model_obj._meta.verbose_name_plural
    if not  model_name:
        model_name = model_obj._meta.model_name
    print('ssss',model_name)
    return model_name

@register.simple_tag
def get_app_name(model_obj):
    print('label',model_obj._meta.app_label)
    return model_obj._meta.app_label  # 获取app名

@register.simple_tag
def get_model_name(model_obj):   # 获取表的英文名,
    print('model_name',model_obj._meta.model_name)
    return model_obj._meta.model_name

@register.simple_tag
def build_table_row(admin_obj,obj):  # 在前端显示表格详细内容
    row_ele = ''
    for column in admin_obj.list_display:
        column_obj = obj._meta.get_field(column)  # 获取字段的对象形式
        if column_obj.choices:  #判断column_obj是否是表中的choice字段,用choice属性,如果是choice字段,则返回真
            get_column_data = getattr(obj,'get_%s_display'%column)
            column_data = get_column_data()
        else:
            column_data = getattr(obj,column)  #获取对象obj的属性column对应的值,这里的column就是表中的字段
        td_ele = """%s""" % column_data
        row_ele += td_ele
    return mark_safe(row_ele)
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2.以下函数全都创建在项目/kingadmin/下
app_config.py   自动找到settings.py文件,并将其中的app模块全部导入

#!/usr/bin/python
# -*- coding:utf-8 -*-
# author:wt
from django import conf  # 导入conf模块

conf.settings  # 可以自动找到项目的配置文件

for app in conf.settings.INSTALLED_APPS:
    try:
        print(__import__('%s.kingadmin' % app))  # 自动导入相关模块
    except ImportError as e:
        print('app has no import')
View Code

base_admin.py  主要的admin函数

#!/usr/bin/python
# -*- coding:utf-8 -*-
# author:wt

class AdminRegisterException(Exception):  # 处理注册app时发生异常
    def __init__(self,msg):
        self.message = msg


class BaseAdmin(object):  # 定义过滤条件,就是如果将表中的部分字段写在下边的括号里,那么将按这几个字段进行过滤,如:list_display = ('qq','name'),按qq和name过滤
    list_display = ()
    list_filter = ()
    search_fields = ()
    list_editable = ()


class AdminSite(object):
    def __init__(self):
        self.registered_sites = {}

    def registed(self,model,admin_class=None):
        app_name = model._meta.app_label  # 获取app名
        model_name = model._meta.model_name  # 获取app的表名

        if app_name not in self.registered_sites:
            self.registered_sites[app_name] = {}

        if model_name in self.registered_sites[app_name]:
            raise AdminRegisterException("app [%s] model [%s] has already registerred!" % (app_name,model_name))
        if not admin_class:
            #则使用BaseAdmin
            admin_class = BaseAdmin
        admin_obj = admin_class()  # 实例化
        admin_obj.model = model  # 再给BaseAdmin类添加一个属性model,这样就可以获取到表的model对象了,进而可以通过model._meta.verbose_name获取到表的中文名了

        self.registered_sites[app_name][model_name] = admin_obj  # 将表对象放进字典


site = AdminSite()
View Code

views.py   数据处理函数

from django.shortcuts import render
from django import conf
from kingadmin import app_config
from kingadmin import base_admin
# Create your views here.
def app_index(request):
    print(base_admin.site.registered_sites)
    return render(request,'kingadmin/app_index.html',{'size':base_admin.site})


def table_data_list(request,app_name,model_name):
    admin_obj = base_admin.site.registered_sites[app_name][model_name]  # admin_obj其实就是注册表的表对象
    admin_obj.querysets = admin_obj.model.objects.all()  # 给admin_obj添加自定义属性querysets
    return render(request,'kingadmin/table_data_list.html',locals()) # locals()返回全部的admin_obj,
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urls.py  路由函数

from django.conf.urls import url,include
from django.contrib import admin
from kingadmin import views

urlpatterns = [
    # url(r'^', views.dashboard),
    url(r'^$', views.app_index),
    url(r'^(\w+)/(\w+)/$', views.table_data_list),
]
View Code

 

转载于:https://www.cnblogs.com/wt11/p/6609541.html

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