第1章 CRM
1.1 建项目
1.2 settings
1.3 规范url
1.4 公共的后台模板
1.5 创建部门表
1.6 建库移库
1.7 母版继承
1.7.1 导入static
1.7.2 导入母版html
1.7.3 继承语法
第2章 部门
2.1 depart_list
2.1.1 列表url
2.1.2 创建函数
2.1.3 创建部门列表html
2.2 depart_add
2.2.1 crm.urls.py
2.2.2 创建MOdelForm
2.2.3 创建函数
2.2.4 创建depart_form.html
2.3 depart_del/depart_edit
2.3.1 结构目录
第3章 用户（一对多（增加MD5））
3.1 user_list
3.2 user_add
3.3 user_edit/user_del
第4章 课程（同部门略）
第5章 班级(多对多)
5.1 class_list
5.2 class_add
5.3 class_del/class_edit
第6章 分页及MD5
第7章 ModelForm
7.1 功能
7.2 生成html标签
7.2.1 fields = '__all__'
7.2.2 fields = ['title']
7.2.3 exclude = ['title']
7.3 instance
第1章 CRM
1.1 建项目
python3 manage.py appstart crm
1.2 settings
pytho22.settings.py
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'crm.apps.CrmConfig',
]
1.3 规范url
python22.crm.urls.py
from django.conf.urls import url,include
from django.contrib import admin
from crm.views import home
urlpatterns = [
url(r'^index/', home.index),
]
python22.urls.py
from django.conf.urls import url,include
from django.contrib import admin
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'crm/', include('crm.urls')),
]
crm.views.home.py
from django.shortcuts import render
# Create your views here.
def index(request):
return render(request,'index.html')
crm.templates.index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CRM：index</title>
</head>
<body>
<h1>CRM:index</h1>
</body>
</html>
1.4 公共的后台模板
模板的查找顺序，先找根目录，再由app注册的顺序查找
1.5 创建部门表
from django.db import models
# Create your models here.
class Department(models.Model):
'''
部门表
'''
title = models.CharField(verbose_name='部门表',max_length=32)
#将返回的object转换为字符串
def __str__(self):
return self.title
1.6 建库移库
python3 manage.py makemigrations
python3 manage.py migrate
1.7 母版继承
1.7.1 导入static
1.7.2 导入母版html
{% load staticfiles %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>路飞学城</title>
<link rel="shortcut icon" href="{% static 'imgs/luffy-study-logo.png' %} ">
<link rel="stylesheet" href="{% static 'plugins/bootstrap/css/bootstrap.css' %} "/>
<link rel="stylesheet" href="{% static 'plugins/font-awesome/css/font-awesome.css' %} "/>
<link rel="stylesheet" href="{% static 'css/commons.css' %} "/>
<link rel="stylesheet" href="{% static 'css/nav.css' %} "/>
<style>
body {
margin: 0;
}
.no-radius {
border-radius: 0;
}
.no-margin {
margin: 0;
}
.pg-body > .left-menu {
background-color: #EAEDF1;
position: absolute;
left: 1px;
top: 48px;
bottom: 0;
220px;
border: 1px solid #EAEDF1;
overflow: auto;
}
.pg-body > .right-body {
position: absolute;
left: 225px;
right: 0;
top: 48px;
bottom: 0;
overflow: scroll;
border: 1px solid #ddd;
border-top: 0;
font-size: 13px;
min- 755px;
}
.navbar-right {
float: right !important;
margin-right: -15px;
}
.luffy-container {
padding: 15px;
}
.left-menu .menu-body .static-menu {
}
.left-menu .menu-body .static-menu .icon-wrap {
20px;
display: inline-block;
text-align: center;
}
.left-menu .menu-body .static-menu a {
text-decoration: none;
padding: 8px 15px;
border-bottom: 1px solid #ccc;
color: #333;
display: block;
background: #efefef;
background: -webkit-gradient(linear, left bottom, left top, color-stop(0, #efefef), color-stop(1, #fafafa));
background: -ms-linear-gradient(bottom, #efefef, #fafafa);
background: -o-linear-gradient(bottom, #efefef, #fafafa);
filter: progid:dximagetransform.microsoft.gradient(startColorStr='#e3e3e3', EndColorStr='#ffffff');
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorStr='#fafafa',EndColorStr='#efefef')";
box-shadow: inset 0 1px 1px white;
}
.left-menu .menu-body .static-menu a:hover {
color: #2F72AB;
border-left: 2px solid #2F72AB;
}
.left-menu .menu-body .static-menu a.active {
color: #2F72AB;
border-left: 2px solid #2F72AB;
}
</style>
{% block css %} {% endblock %}
</head>
<body>
<div class="pg-header">
<div class="nav">
<div class="logo-area left">
<a href="#">
<img class="logo" src="{% static 'imgs/logo.svg' %}">
<span style="font-size: 18px;">路飞学城 </span>
</a>
</div>
<div class="left-menu left">
<a class="menu-item">资产管理</a>
<a class="menu-item">用户信息</a>
<a class="menu-item">路飞管理</a>
<div class="menu-item">
<span>使用说明</span>
<i class="fa fa-caret-down" aria-hidden="true"></i>
<div class="more-info">
<a href="#" class="more-item">管他什么菜单</a>
<a href="#" class="more-item">实在是编不了</a>
</div>
</div>
</div>
<div class="right-menu right clearfix">
<div class="user-info right">
<a href="#" class="avatar">
<img class="img-circle" src="{% static 'imgs/default.png' %}">
</a>
<div class="more-info">
<a href="#" class="more-item">个人信息</a>
<a href="#" class="more-item">注销</a>
</div>
</div>
<a class="user-menu right">
消息
<i class="fa fa-commenting-o" aria-hidden="true"></i>
<span class="badge bg-success">2</span>
</a>
<a class="user-menu right">
通知
<i class="fa fa-envelope-o" aria-hidden="true"></i>
<span class="badge bg-success">2</span>
</a>
<a class="user-menu right">
任务
<i class="fa fa-bell-o" aria-hidden="true"></i>
<span class="badge bg-danger">4</span>
</a>
</div>
</div>
</div>
<div class="pg-body">
<div class="left-menu">
<div class="menu-body">
<div class="static-menu">
<a href="/crm/depart/list/"><span class="icon-wrap"><i class="fa fa-map-o" aria-hidden="true"></i></span> 部门管理</a>
</div>
</div>
</div>
<div class="right-body">
<div>
<ol class="breadcrumb no-radius no-margin" style="border-bottom: 1px solid #ddd;">
<li><a href="#">首页</a></li>
<li class="active">客户管理</li>
</ol>
</div>
{% block content %} {% endblock %}
</div>
</div>
<script src="{% static 'js/jquery-3.3.1.min.js' %} "></script>
<script src="{% static 'plugins/bootstrap/js/bootstrap.js' %} "></script>
{% block js %} {% endblock %}
</body>
</html>
1.7.3 继承语法
{% extends 'layout.html' %}
{% block content %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>CRM：index</title>
</head>
<body>
<h1>CRM:index</h1>
</body>
</html>
{% endblock %}
第2章 部门
2.1 depart_list
2.1.1 列表url
crm.urls.py
from django.conf.urls import url,include
from django.contrib import admin
from crm.views import home
from crm.views import depart
urlpatterns = [
url(r'^index/', home.index),
url(r'^depart/list/', depart.depart_list)
2.1.2 创建函数
crm.views.depart.py
from django.shortcuts import render
def depart_list(request):
return render(request,'depart_list.html')
2.1.3 创建部门列表html
crm.templates.depart_html
{% extends 'layout.html' %}
{% block content %}
<div style="margin: 5px;">
<a href="/crm/depart/add/" class="btn btn-primary"><i class="fa fa-plus-circle" aria-hidden="true"></i> 添加</a>
</div>
<table class="table table-bordered">
<thead>
<tr>
<th>ID</th>
<th>名称</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for row in depart_queryset %}
<tr>
<td>{{ row.id }}</td>
<td>{{ row.title }}</td>
<td>
<a href="/crm/depart/edit/{{ row.id }}/"><i class="fa fa-pencil-square-o" aria-hidden="true"></i></a>
|
<a href="/crm/depart/del/{{ row.id }}/" style="color: red;"><i class="fa fa-trash-o" aria-hidden="true"></i></a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
<nav aria-label="Page navigation">
<ul class="pagination">
{{ pager.page_html|safe }}
</ul>
</nav>
{% endblock %}
2.2 depart_add
2.2.1 crm.urls.py
urlpatterns = [
url(r'^index/$', home.index),
url(r'^depart/list/$', depart.depart_list),
url(r'^depart/add/$', depart.depart_add),
]
2.2.2 创建MOdelForm
crm.forms.depart.py
from crm import models
from django.forms import ModelForm
from django import forms
class DepartModelForm(ModelForm):
class Meta:
model = models.Department
fields = '__all__'
widgets = {
'title': forms.TextInput(attrs={'class':'form-control','placeholder':'部门名称'})
}
error_messages ={
'title':{
'required':'部门名称不能为空'
}
}
2.2.3 创建函数
crm.views.depart.py
def depart_add(request):
'''
添加部门
:param request:
:return:
'''
#批量创建部门
# for i in range(103):
# title = '部门-%s' %i
# models.Department.objects.create(title=title)
if request.method == 'GET':
form = DepartModelForm()
return render(request,'depart_add.html',{'form':form})
form = DepartModelForm(data=request.POST)
if form.is_valid():
form.save()
return redirect('/crm/depart/list/')
return render(request,'depart_form.html',{'form':form})
2.2.4 创建depart_form.html
crm.templates
{% extends 'layout.html' %}
{% block content %}
<form class="form-horizontal" method="post" novalidate>
{% csrf_token %}
<div class="form-group">
<label class="col-sm-2 control-label">{{ form.title.label }}</label>
<div class="col-sm-10">
{{ form.title }}
<span style="color: red;">{{ form.title.errors.0 }}</span>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" class="btn btn-primary" value="提 交">
</div>
</div>
</form>
{% endblock %}
2.3 depart_del/depart_edit
crm.urls.py
url(r'^depart/edit/(d+)/$', depart.depart_edit),
url(r'^depart/del/(d+)/$', depart.depart_del),
crm.views.depart.py
def depart_edit(request,nid):
'''
编辑
:param request:
:return:
'''
obj = models.Department.objects.filter(id=nid).first()
if request.method == 'GET':
form = DepartModelForm(instance=obj)
return render(request,'depart_form.html',{'form':form})
form = DepartModelForm(data=request.POST,instance=obj)
if form.is_valid():
form.save()
return redirect('/crm/depart/list/')
return render(request,'depart_form.html',{'form':form})
@login_required
def depart_del(request,nid):
models.Department.objects.filter(id=nid).delete()
return redirect('/crm/depart/list')
2.3.1 结构目录
第3章 用户（一对多（增加MD5））
3.1 user_list
crm.models.py
class UserInfo(models.Model):
"""
员工表
"""
username = models.CharField(verbose_name='用户名',max_length=32)
password = models.CharField(verbose_name='密码',max_length=64)
email = models.EmailField(verbose_name='邮箱',max_length=128)
gender_choices = (
(1,'男'),
(2,'女'),
)
gender = models.IntegerField(verbose_name='性别',choices=gender_choices)
depart = models.ForeignKey(verbose_name='所在部门',to='Department')
def __str__(self):
return self.username
crm.urls.py
url(r'^user/list/$', user.user_list),
crm.views.user.py
from crm.forms.user import UserModelForm
from crm import models
from basic.pager import Pagination
from crm.views.login import login_required
from basic.md5_mode import md5
@login_required
def user_list(request):
'''
用户列表
:param request:
:return:
'''
page = request.GET.get('page', 1) # 要查看的页码
total_count = models.UserInfo.objects.all().count() # 数据库中数据总条数
pager = Pagination(page, total_count, '/crm/user/list/')
user_queryset = models.UserInfo.objects.all()[pager.start:pager.end]
return render(request, 'user_list.html', {'user_queryset': user_queryset, 'pager': pager})
crm.templates.user_list.html
{% extends 'layout.html' %}
{% block content %}
<div style="margin: 5px;">
<a href="/crm/user/add/" class="btn btn-primary"><i class="fa fa-plus-circle" aria-hidden="true"></i> 添加</a>
</div>
<table class="table table-bordered">
<thead>
<tr>
<th>ID</th>
<th>姓名</th>
<th>密码</th>
<th>邮箱</th>
<th>性别</th>
<th>所属部门</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for row in user_queryset %}
<tr>
<td>{{ row.id }}</td>
<td>{{ row.username }}</td>
<td>{{ row.password }}</td>
<td>{{ row.email }}</td>
{#性别选择，数据库中写好的选择方式，可直接由django调用#}
<td>{{ row.get_gender_display }}</td>
{#针对多表#}
<td>{{ row.depart.title }}</td>
<td>
<a href="/crm/user/edit/{{ row.id }}"><i class="fa fa-pencil-square-o" aria-hidden="true"></i></a>
|
<a href="/crm/user/del/{{ row.id }}" style="color: red;"><i class="fa fa-trash-o" aria-hidden="true"></i></a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
<nav aria-label="Page navigation">
<ul class="pagination">
{{ pager.page_html|safe }}
</ul>
</nav>
{% endblock %}
3.2 user_add
crm.urls.py
url(r'^user/add/$', user.user_add),
crm.forms.user.py
from django import forms
from crm import models
class UserModelForm(forms.ModelForm):
class Meta:
model = models.UserInfo
fields = '__all__'
widgets = {
'username': forms.TextInput(attrs={'class':'form-control','placeholder':'用户名'}),
'password': forms.TextInput(attrs={'class':'form-control','placeholder':'密码'}),
'email': forms.EmailInput(attrs={'class':'form-control','placeholder':'邮箱'}),
'gender': forms.Select(attrs={'class':'form-control'}),
'depart': forms.Select(attrs={'class':'form-control'}),
}
error_messages ={
'email':{
'required':'邮箱地址不能为空',
'invalid':'邮箱的格式错误',
},
'username':{
'required':'用户名称不能为空',
# 'invalid':'邮箱的格式错误',
},
'password':{
'required':'密码称不能为空',
# 'invalid':'邮箱的格式错误',
},
'gender': {
'required': '亲选择你的性别',
# 'invalid':'邮箱的格式错误',
},
'depart': {
'required': '请选择一个部门',
# 'invalid':'邮箱的格式错误',
},
}
crm.views.user.py
def user_add(request):
'''
增加用户
:param request:
:return:
'''
if request.method == 'GET':
form = UserModelForm()
return render(request,'user_form.html',{'form':form})
form = UserModelForm(data=request.POST)
if form.is_valid():
username = form.cleaned_data['username']
pwd = form.cleaned_data['password']
email = form.cleaned_data['email']
gender = form.cleaned_data['gender']
depart = form.cleaned_data['depart']
md5pwd = md5(username,pwd)
models.UserInfo.objects.get_or_create(password=md5pwd,username=username,email=email,gender=gender,depart=depart)
# form.save()
return redirect('/crm/user/list')
return render(request,'user_form.html',{'form':form})
crm.templates.user_form.html
{% extends 'layout.html' %}
{% block content %}
<form class="form-horizontal" method="post" novalidate>
{% csrf_token %}
{% for field in form %}
<div class="form-group">
<label class="col-sm-2 control-label">{{ field.label }}</label>
<div class="col-sm-10">
{{ field }}
<span style="color: red;">{{ field.errors.0 }}</span>
</div>
</div>
{% endfor %}
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" class="btn btn-primary" value="提 交">
</div>
</div>
</form>
{% endblock %}
3.3 user_edit/user_del
def user_edit(request,nid):
obj = models.UserInfo.objects.filter(id=nid).first()
if request.method== 'GET':
form = UserModelForm(instance=obj)
return render(request,'user_form.html',{'form':form})
form = UserModelForm(data=request.POST,instance=obj)
if form.is_valid():
form.save()
return redirect('/crm/user/list/')
return render(request,'user_form.html',{'form':form})
def user_del(request,nid):
models.UserInfo.objects.filter(id=nid).delete()
return redirect('/crm/user/list/')
第4章 课程（同部门略）
第5章 班级(多对多)
5.1 class_list
crm.models.py
class ClassList(models.Model):
"""
班级表
"""
course = models.ForeignKey(verbose_name='课程', to='Course')
num = models.IntegerField(verbose_name='期')
teachers = models.ManyToManyField(verbose_name='老师', to='UserInfo')
def __str__(self):
return self.course
crm.urls.py
url(r'^class/list/$', class_list.class_list),
crm.views.class_list.py
from django.shortcuts import render,redirect
from crm.forms.class_list import ClassModelForm
from crm import models
from basic.pager import Pagination
from crm.views.login import login_required
@login_required
def class_list(request):
'''
课程列表
:param request:
:return:
'''
page = request.GET.get('page', 1) # 要查看的页码
total_count = models.ClassList.objects.all().count() # 数据库中数据总条数
pager = Pagination(page, total_count, '/crm/class/list/')
class_queryset = models.ClassList.objects.values('id','course__title','num','teachers__username')[pager.start:pager.end]
return render(request, 'class_list.html', {'class_queryset': class_queryset, 'pager': pager})
crm.templates.class_list.html
{% extends 'layout.html' %}
{% block content %}
<div style="margin: 5px;">
<a href="/crm/class/add/" class="btn btn-primary"><i class="fa fa-plus-circle" aria-hidden="true"></i> 添加</a>
</div>
<table class="table table-bordered">
<thead>
<tr>
<th>ID</th>
<th>课程</th>
<th>期数</th>
<th>导师</th>
<th>操作</th>
</tr>
</thead>
<tbody>
{% for row in class_queryset %}
<tr>
<td>{{ row.id}}</td>
<td>{{ row.course__title}}</td>
<td>{{ row.num }}</td>
<td>{{ row.teachers__username}}</td>
<td>
<a href="/crm/class/edit/{{ row.id }}"><i class="fa fa-pencil-square-o" aria-hidden="true"></i></a>
|
<a href="/crm/class/del/{{ row.id }}" style="color: red;"><i class="fa fa-trash-o" aria-hidden="true"></i></a>
</td>
</tr>
{% endfor %}
</tbody>
</table>
<nav aria-label="Page navigation">
<ul class="pagination">
{{ pager.page_html|safe }}
</ul>
</nav>
{% endblock %}
5.2 class_add
crm.urls.py
url(r'^class/add/$', class_list.class_add),
crm.views.class_list.py
def class_add(request):
'''
增加班级
:param request:
:return:
'''
if request.method == 'GET':
form = ClassModelForm()
return render(request,'class_form.html',{'form':form})
form = ClassModelForm(data=request.POST)
if form.is_valid():
form.save()
return redirect('/crm/class/list')
return render(request,'class_form.html',{'form':form})
crm.templates.class_form.html
{% extends 'layout.html' %}
{% block content %}
<form class="form-horizontal" method="post" novalidate>
{% csrf_token %}
{% for field in form %}
<div class="form-group">
<label class="col-sm-2 control-label">{{ field.label }}</label>
<div class="col-sm-10">
{{ field }}
<span style="color: red;">{{ field.errors.0 }}</span>
</div>
</div>
{% endfor %}
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" class="btn btn-primary" value="提 交">
</div>
</div>
</form>
{% endblock %}
crom.forms.class_list.py
from django import forms
from crm import models
class ClassModelForm(forms.ModelForm):
class Meta:
model = models.ClassList
fields = '__all__'
widgets = {
'course': forms.Select(attrs={'class':'form-control'}),
'num': forms.TextInput(attrs={'class':'form-control','placeholder':'期数'}),
'teachers': forms.SelectMultiple(attrs={'class':'form-control'}),
}
error_messages ={
'course':{
'required':'请至少选择一个课程',
},
'num':{
'required':'期数名称不能为空',
},
'teachers':{
'required':'请至少选择一名导师',
},
'gender': {
'required': '亲选择你的性别',
# 'invalid':'邮箱的格式错误',
},
'depart': {
'required': '请选择一个部门',
# 'invalid':'邮箱的格式错误',
},
}
5.3 class_del/class_edit
urls.py
url(r'^class/edit/(d+)/$', class_list.class_edit),
url(r'^class/add/(d+)/$',
class_list.class_del),
views.class.py
def class_edit(request,nid):
obj = models.ClassList.objects.filter(id=nid).first()
if request.method== 'GET':
form = ClassModelForm(instance=obj)
return render(request,'class_form.html',{'form':form})
form = ClassModelForm(data=request.POST,instance=obj)
if form.is_valid():
form.save()
return redirect('/crm/class/list/')
return render(request,'class_form.html',{'form':form})
def class_del(request,nid):
models.ClassList.objects.filter(id=nid).delete()
return redirect('/crm/class/list/')
第6章 分页及MD5
python22.basic.md5.py
import hashlib
#MD5加密
def md5(username,password):
'''
动态用户名加盐
:param username:
:param password:
:return:
使用方法：md5(username,password)
'''
md5_pwd = hashlib.md5(username.encode("utf-8"))
md5_pwd.update(password.encode('utf-8'))
#返回加密数据
return md5_pwd.hexdigest()
python22.pager.py
"""
使用文档：
1. 获取两个数据给Pagination
- 数据库的数据总数据量
- 当前要访问的页码
例如：
page = request.GET.get('page', 1) # 要查看的页码
total_count = models.Department.objects.all().count() # 数据库中数据总条数
pager = Pagination(page,total_count,'/crm/depart/list/')
2. Pagination对象有两个功能
- 计算数据切片索引
例如：
depart_queryset = models.Department.objects.all()[pager.start :pager.end]
- 生成页码HTMl
例如：在页面中使用
<ul class="pagination">
{{ pager.page_html|safe }}
</ul>
"""
class Pagination(object):
"""
分页相关
"""
def __init__(self,page,total_count,url, per_page_count=10,max_page_num=11):
"""
:param page: 当前页
:param total_count: 数据库中数据总条数
:param url: 路径
:param per_page_count: 页面显示的数据条数
:param max_page_num: 最多显示的页码数量
"""
try:
page = int(page)
except Exception as e:
page =1
if page <1:
page = 1
self.page = page
self.total_count = total_count
self.url = url
self.per_page_count = per_page_count
self.max_page_num = max_page_num
self.half_max_page_num = int(max_page_num / 2)
self.total_page_num, x = divmod(total_count, per_page_count)
if x > 0:
self.total_page_num += 1
@property
def start(self):
return (self.page-1) * self.per_page_count
@property
def end(self):
return self.page * self.per_page_count
def page_html(self):
# 如果数据库中的数据最多总共能到11条 10,9,0 < max_page_num
if self.total_page_num <= self.max_page_num:
page_start = 1
page_end = self.total_page_num + 1
else:
# 如果当前访问的页码： 1,2,3,4,5
if self.page <=self.half_max_page_num:
page_start = 1
page_end = self.max_page_num + 1
else:
# 如果当前页+5 > 总页码
if self.page + self.half_max_page_num > self.total_page_num:
page_start = self.total_page_num - self.max_page_num + 1
page_end = self.total_page_num + 1
else:
page_start = self.page - self.half_max_page_num
page_end = self.page + self.half_max_page_num + 1
pager_list = []
# 上一页
if self.page > 1:
prev = '<li><a href="%s?page=%s">上一页</a></li>' % (self.url,self.page - 1,)
pager_list.append(prev)
for i in range(page_start, page_end): # 应该显示一定范围的页码
if i == self.page:
temp = '<li class="active"><a href="%s?page=%s">%s</a></li>' % (self.url,i, i,)
else:
temp = '<li><a href="%s?page=%s">%s</a></li>' % (self.url,i, i,)
pager_list.append(temp)
# 下一页
if self.page < self.total_page_num:
nex = '<li><a href="%s?page=%s">下一页</a></li>' % (self.url,self.page + 1,)
pager_list.append(nex)
return "".join(pager_list)
第7章 ModelForm
7.1 功能
l 生成用户提交请求的html标签
l 提供用户提交请求校验方式
7.2 生成html标签
crm.forms.depart.py
from crm import models
from django.forms import ModelForm
from django import forms
class DepartModelForm(ModelForm):
#固定写法
class Meta:
model = models.Department
#将数据库的值拿出来一个个进行对比校验
fields = '__all__'
#生成请求标签
widgets = {
'title': forms.TextInput(attrs={'class':'form-control','placeholder':'部门名称'})
}
error_messages ={
'title':{
'required':'部门名称不能为空'
}
}
html中的取值
7.2.1 fields = '__all__'
解释：全部进行比对校验
7.2.2 fields = ['title']
解释：只数据库中的title,进行对比
7.2.3 exclude = ['title']
解释：只对数据库中的title,进行排除
7.3 instance
携带默认值，数据库值出入form
def depart_edit(request,nid):
'''
编辑
:param request:
:return:
'''
obj = models.Department.objects.filter(id=nid).first()
if request.method == 'GET':
#生成默认值+html标签，默认值包括obj所有数据
form = DepartModelForm(instance=obj)
return render(request,'depart_form.html',{'form':form})#return form带默认值
form = DepartModelForm(data=request.POST,instance=obj)
if form.is_valid():
form.save()
return redirect('/crm/depart/list/')
return render(request,'depart_form.html',{'form':form})