具于django ajax实现增 删 改 查功能
代码示例：
代码：
urls.py
from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^students/', views.students),
url(r'^add_student/', views.add_student),
url(r'^del_student/', views.del_student),
url(r'^edit_student/', views.edit_student),
url(r'^test_ajax_list/', views.test_ajax_list),
]
settings.py
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(BASE_DIR,'static'),
)
models.py
from django.db import models
from django.db import modelsclass Classes(models.Model):
"""
班级表,男
"""
title = models.CharField(max_length=32)
m = models.ManyToManyField("Teachers")class Teachers(models.Model):
"""
老师表，女
"""
name = models.CharField (max_length=32)class Student(models.Model):
username = models.CharField(max_length=32)
age = models.IntegerField()
gender = models.BooleanField()
cs = models.ForeignKey(Classes)
添加功能：
编辑功能：
views.py
from django.shortcuts import render
from django.shortcuts import HttpResponse
from app01 import models
import json
def students(request):
cls_list = models.Classes.objects.all()
stu_list = models.Student.objects.all() return render(request,'students.html',{'stu_list':stu_list,'cls_list':cls_list})def add_student(request):
response = {'status':True,'message': None,'data':None}
try:
u = request.POST.get('username')
a = request.POST.get('age')
g = request.POST.get('gender')
c = request.POST.get('cls_id')
obj = models.Student.objects.create(
username=u,
age=a,
gender=g,
cs_id=c
)
response['data'] = obj.id
except Exception as e:
response['status'] = False
response['message'] = '用户输入错误' result = json.dumps(response,ensure_ascii=False)
return HttpResponse(result)def del_student(request):
ret = {'status': True}
try:
nid = request.GET.get('nid')
models.Student.objects.filter(id=nid).delete()
except Exception as e:
ret['status'] = False
return HttpResponse(json.dumps(ret))def edit_student(request):
response = {'code':1000, 'message': None}
try:
nid = request.POST.get('nid')
user = request.POST.get('user')
age = request.POST.get('age')
gender = request.POST.get('gender')
cls_id = request.POST.get('cls_id')
models.Student.objects.filter(id=nid).update(
username=user,
age=age,
gender=gender,
cs_id=cls_id
)
except Exception as e:
response['code'] = 1001
response['message'] = str(e)
return HttpResponse(json.dumps(response))def test_ajax_list(request):
print(request.POST.getlist('k'))
return HttpResponse('...')
students.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/plugins/bootstrap/css/bootstrap.css" rel="external nofollow" />
<link rel="stylesheet" href="/static/plugins/font-awesome/css/font-awesome.css" rel="external nofollow" />
<style>
.icon {
margin: 0 5px;
}
</style>
</head>
<body><div class="container">
<div style="padding: 20px 0;">
<a class="btn btn-primary" id="addBtn">添加</a>
<a class="btn btn-danger">删除</a>
</div> <div>
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>ID</th>
<th>姓名</th>
<th>年龄</th>
<th>性别</th>
<th>班级</th>
<th>操作</th>
</tr>
</thead>
<tbody id="tb">
{% for row in stu_list %}
<tr nid="{{ row.id }}">
<td na="nid">{{ row.id }}</td>
<td na="user">{{ row.username }}</td>
<td na="age">{{ row.age }}</td>
<td na="gender">{{ row.gender }}</td>
<td na="cls_id" cid="{{ row.cs_id }}">{{ row.cs.title }}</td>
<td>
<a class="glyphicon glyphicon-remove icon del-row"></a><a class="fa fa-pencil-square-o icon edit-row"></a>
</td>
</tr>
{% endfor %}
</tbody> </table>
</div>
</div><!-- Modal -->
<div class="modal fade" id="addModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span
aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">创建学生</h4>
</div>
<div class="modal-body"> <form id="fm" class="form-horizontal">
<div class="form-group">
<label for="username" class="col-sm-2 control-label">姓名</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="username" placeholder="姓名">
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">年龄</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="age" placeholder="年龄">
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">性别</label>
<div class="col-sm-10">
<label class="radio-inline">
<input type="radio" name="gender" value="1"> 男
</label>
<label class="radio-inline">
<input type="radio" name="gender" value="0"> 女
</label>
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">班级</label>
<div class="col-sm-10">
<select class="form-control" name="cls_id">
{% for row in cls_list %}
<option value="{{ row.id }}">{{ row.title }}</option>
{% endfor %}
</select> </div>
</div>
</form>
</div>
<div class="modal-footer">
<span id="errorMsg" style="color: red;"></span>
<button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
<button type="button" class="btn btn-primary" id="btnSave">保存</button>
</div>
</div>
</div>
</div><!-- Modal -->
<div class="modal fade" id="delModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="alert alert-danger" role="alert">
<h3>删除学生信息？</h3>
<div>...<input style="display: none;" type="text" id="delNid" /></div>
<div>
<button type="button" class="btn btn-default">取消</button>
<button id="delConfirm" type="button" class="btn btn-danger">确定</button>
</div>
</div>
</div>
</div><!-- Modal -->
<div class="modal fade" id="eidtModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span
aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">编辑学生</h4>
</div>
<div class="modal-body"> <form id="fm" class="form-horizontal">
<input type="text" name="nid" style="display: none" /> <div class="form-group">
<label for="username" class="col-sm-2 control-label">姓名</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="user" placeholder="姓名">
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">年龄</label>
<div class="col-sm-10">
<input type="text" class="form-control" name="age" placeholder="年龄">
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">性别</label>
<div class="col-sm-10">
<label class="radio-inline">
<input type="radio" name="gender" value="1"> 男
</label>
<label class="radio-inline">
<input type="radio" name="gender" value="0"> 女
</label>
</div>
</div> <div class="form-group">
<label for="age" class="col-sm-2 control-label">班级</label>
<div class="col-sm-10">
<select class="form-control" name="cls_id">
{% for row in cls_list %}
<option value="{{ row.id }}">{{ row.title }}</option>
{% endfor %}
</select> </div>
</div>
</form>
</div>
<div class="modal-footer">
<span id="errorMsg" style="color: red;"></span>
<button type="button" class="btn btn-default" data-dismiss="modal">取消</button>
<button type="button" class="btn btn-primary" id="btnEditSave">保存</button>
</div>
</div>
</div>
</div><script src="/static/js/jquery-3.1.1.js"></script>
<script src="/static/plugins/bootstrap/js/bootstrap.js"></script>
<script>
$(function () {
bindEvent();
bindSave();
bindDel();
bindDelConfirm();
bindEdit();
bindEditConfirm();
}); /*
编辑提交事件
*/
function bindEditConfirm() {
$('#btnEditSave').click(function () {
var postData = {};
$('#eidtModal').find('input,select').each(function () {
var v = $(this).val();
var n = $(this).attr('name');
if(n=='gender'){
if($(this).prop('checked')){
postData[n] = v;
}
}else{
postData[n] = v;
}
}); $.ajax({
url: '/edit_student/',
type: 'POST',
data: postData,
dataType: 'JSON',
success:function (arg) {
if(arg.code == 1000){
window.location.reload();
}else{
alert(arg.message);
}
}
})
})
} /*
绑定编辑按钮点击事件
*/
function bindEdit() {
$('#tb').on('click','.edit-row',function () {
$('#eidtModal').modal('show');
//1.获取当前行的所有数据
// 将数据赋值到对应的对话框的指定位置 $(this).parent().prevAll().each(function () {
// cls_id
var v = $(this).text();
var n = $(this).attr('na');
if(n=='cls_id'){
var cid = $(this).attr('cid');
$('#eidtModal select[name="cls_id"]').val(cid);
}else if(n=='gender'){
// v=True
if(v=='True'){
$('#eidtModal :radio[value="1"]').prop('checked',true);
}else{
$('#eidtModal :radio[value="0"]').prop('checked',true);
}
}else {
// n=age
// v=12
$("#eidtModal input[name='"+ n +"']").val(v) }
}); })
}
function bindDelConfirm() {
$('#delConfirm').click(function () {
var rowId = $('#delNid').val();
console.log(rowId); $.ajax({
url: '/del_student/',
type: 'GET',
data: {'nid': rowId},
success:function (arg) {
var dict = JSON.parse(arg);
if(dict.status){
$('tr[nid="'+ rowId+'"]').remove();
}
$('#delModal').modal('hide');
}
}) }); }
function bindDel() {
$('#tb').on('click','.del-row',function () {
$('#delModal').modal('show');
// 回去当前行的ID
var rowId = $(this).parent().parent().attr('nid');
$('#delNid').val(rowId);
})
}
function bindEvent() {
$('#addBtn').click(function () {
$('#addModal').modal('show');
})
}
function bindSave() { $('#btnSave').click(function () {
var postData = {};
$('#addModal').find('input,select').each(function () {
var v = $(this).val();
var n = $(this).attr('name');
if(n=='gender'){
if($(this).prop('checked')){
postData[n] = v;
}
}else{
postData[n] = v;
}
}); /*
postData = {
username: 'asdf',
age:18,
gender: 1,
cls_id: 2
}
*/ $.ajax({
url: '/add_student/',
type: 'POST',
data: postData,
success:function (arg) {
// arg是字符串
// JSON.parse将字符串转换成字典， json.loads
var dict = JSON.parse(arg);
if(dict.status){
/*
postData = {
username: 'asdf',
age:18,
gender: 1,
cls_id: 2
}
自增id = dict.data
*/
createRow(postData,dict.data);
$('#addModal').modal('hide');
// window.location.reload();
}else {
$('#errorMsg').text(dict.message);
}
}
}) }); }
function createRow(postData,nid) {
var tr = document.createElement('tr');
$(tr).attr('nid',nid); var tdId = document.createElement('td');
tdId.innerHTML = nid;
$(tr).append(tdId); var tdUser = document.createElement('td');
tdUser.innerHTML = postData.username;
$(tr).append(tdUser); var tdAge = document.createElement('td');
tdAge.innerHTML = postData.age;
$(tr).append(tdAge); var tdGender = document.createElement('td');
if(postData.gender == "0"){
tdGender.innerHTML = 'False';
}else{
tdGender.innerHTML = 'True';
}
$(tr).append(tdGender); var tdClass = document.createElement('td');
var text = $('select[name="cls_id"]').find('option[value="'+ postData.cls_id +'"]').text();
tdClass.innerHTML = text;
$(tr).append(tdClass); var tdHandle = '<td> <a class="glyphicon glyphicon-remove icon del-row"></a><a class="fa fa-pencil-square-o icon edit-row"></a> </td>';
$(tr).append(tdHandle); $('#tb').append(tr);
}
</script>
</body>
</html>
