django ajax增删改查

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 models
 
class 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

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="/static/plugins/bootstrap/css/bootstrap.css"/>
    <link rel="stylesheet" href="/static/plugins/font-awesome/css/font-awesome.css"/>
    <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>