本文要实现的功能是:根据下拉列表的选项将数据库中对应的内容显示在页面,选定要排除的选项后,提交剩余的选项到数据库。
为了方便前后台交互,利用了Ajax的GET和POST方法分别进行数据的获取和提交。
代码如下:
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<!--利用获取的数据进行表单内容的填充--> < script > $("#soft_id").change(function(){ var softtype=$("#soft_id").find("option:selected").text(); var soft={'type_id':softtype} $.ajax( { type: 'GET', url:'/data/soft-filter/{{family}}', dataType: 'json', data:soft, success: function( data_get ){ build_dropdown( data_get, $( '#min_version' ), '请选择最低版本' );//填充表单 build_dropdown( data_get, $( '#max_version' ), '请选择最高版本' ); build_div(data_get,$('#soft_affected')); } }); }); var build_dropdown = function( data, element, defaultText ){ element.empty().append( '< option value = "" >' + defaultText + '</ option >' ); if( data ){ $.each( data, function( key, value ){ element.append( '< option value = "' + key + '" >' + value + '</ option >' ); } ); } } var build_div = function( data, element){ if( data ){ element.empty(); $.each( data, function( key, value ){ element.append(' < li class = "clearfix" > < div class = "todo-check pull-left" >< input name = "chk" type = "checkbox" value = "'+value+'" /></ div > < div class = "todo-title" >'+value+' </ div >< div class = "todo-actions pull-right clearfix" >< a href = "#" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" class = "todo-complete" >< i class = "fa fa-check" ></ i ></ a >< a href = "#" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" class = "todo-edit" >< i class = "fa fa-edit" ></ i ></ a >< a href = "#" rel = "external nofollow" rel = "external nofollow" rel = "external nofollow" class = "todo-remove" >< i class = "fa fa-trash-o" ></ i ></ a ></ div > </ li >'); } ); } } </ script > |
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<!--选择并提交数据--> < script > //选择数据 function postselect (){ var seleitem=new Array(); $("input[name='chk']").each(function(i){ if(!($(this).is( ":checked" )) ){ seleitem[i]=$(this).val(); // alert(seleitem[i]); } }); //将排除后的数据提交到后台数据库 var soft={'type_id':seleitem} $.ajax( { type: 'POST', url:'/data/soft-submit', dataType: 'json', data:soft, success: function( data_get ){ } }); } </ script > |
部分html代码为:
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< div style = "overflow: hidden;" > < ul id = 'soft_affected' class = "todo-list sortable" > </ ul > </ div > |
views.py中处理请求和响应代码:
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def soft_submit(request): if request.is_ajax(): id=request.POST.get('type_id') return HttpResponse("success") def soft_filter(request,fami): softtype='' ajax_release_version=[] release_version=[] if request.is_ajax(): softtype=request.GET.get('type_id') soft_type=SoftTypeRef.objects.using('vul').filter(description=softtype) soft_tp_id=0 for i in soft_type: soft_tp_id= i.soft_type_id web_soft=SoftWeb.objects.using('vul').filter(soft_type_id=soft_tp_id) for i in web_soft: ajax_release_ver=i.release_version ajax_release_version.append(ajax_release_ver) return HttpResponse(json.dumps(ajax_release_version), content_type='application/json') |
以上这篇Django 使用Ajax进行前后台交互的示例讲解就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/IqqIqqIqqIqq/article/details/52160662