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 >
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部分html代码为:
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< div style = "overflow: hidden;" >
< ul id = 'soft_affected' class = "todo-list sortable" >
</ ul >
</ div >
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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')
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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