使用通过mysql
调用的php
文件插入AJAX
。在insert
语句之前,php代码执行select
查询查找重复记录并继续insert statement
。
问题:从ajax调用php文件时。它执行了两次并将响应作为重复记录。
我从插入函数尝试了error_log
,它被调用了两次。
表单验证的触发点
$("#load-modal").on("click","#addcountryformsubmitbtn",function(e){
e.preventDefault();
var $form = $("#addcountryform"), $url = $form.attr('action');
$form.submit();
});
这是验证后提交表单的方式:
}).on('success.form.bv', function(e){
e.preventDefault();
var $form = $("#addcountryform"), $url = $form.attr('action');
$.post($url,$form.serialize()).done(function(dte){ $("#load-modal").html(dte); });
});
使用bootstrapvalidator,Core PHP,mysqli,Chrome浏览器。
实际JS:
$(document).ready(function() {
$php_self_country="<?php echo $_SERVER['PHP_SELF']."?pg=countrycontent"; ?>";
$("#country-content").load($php_self_country,loadfunctions);
$("#country-content").on( "click", ".pagination a", function (e){
e.preventDefault();
$("#country-loading-div").show();
var page = $(this).attr("data-page");
$("#country-content").load($php_self_country,{"page":page}, function(){
$("#country-loading-div").hide();
loadfunctions();
});
});
$("#country-content").on("click","#closebtn",function(e){
e.preventDefault();
$("#country-content").load($php_self_country,loadfunctions);
});
});
function loadfunctions(){
$("[data-toggle='tooltip']").tooltip();
$("#country-content").on("click","#addcountrybtn, #addcountrylargebtn",function(e){
e.preventDefault();
$.ajax({
url: $php_self_country,
type: "POST",
data: { 'addcountry':'Y' },
dataType: "html",
cache: false
}).done(function(msg){
$("#load-modal").html(msg);
$("#load-modal").modal('show');
$('input[type="radio"]').iCheck({ checkboxClass: 'icheckbox_minimal', radioClass: 'iradio_minimal' });
modalvalidation();
}).fail(function() {
$("#load-modal").html( "Request Failed. Please Try Again Later." );
});
});
$("#country-content").on("click",".tools a",function(e){
e.preventDefault();
var recordid = $(this).attr("record-id");
$.ajax({
url: $php_self_country,
type: "POST",
data: { 'modifycountry':recordid },
dataType: "html",
cache: false
}).done(function(msg){
$("#load-modal").html(msg);
$("#load-modal").modal('show');
$('input[type="radio"]').iCheck({ checkboxClass: 'icheckbox_minimal', radioClass: 'iradio_minimal' });
modalvalidation();
}).fail(function() {
$("#load-modal").html( "Request Failed. Please Try Again Later." );
});
});
$("#load-modal").on("click","#addcountryformsubmitbtn",function(e){
e.preventDefault();
var $form = $("#addcountryform"), $url = $form.attr('action');
$form.submit();
});
$("#load-modal").on("hide.bs.modal", function () {
window.location.href=$php_self_country_pg;
});
}
function modalvalidation(){
$('#addcountryform').bootstrapValidator({
message: 'This value is not valid',
feedbackIcons: {
valid: 'glyphicon glyphicon-ok',
invalid: 'glyphicon glyphicon-remove',
validating: 'glyphicon glyphicon-refresh'
},
fields: {
[-------Validation part comes here----------]
}
}).on('success.form.bv', function(e){
e.preventDefault();
var $form = $("#addcountryform"), $url = $form.attr('action');
$.post($url,$form.serialize()).done(function(dte){ $("#load-modal").html(dte); });
});
}
HTML 的
通过addcountrybtn
点击AJAX
按钮调用此html,并写入基本html文件中的div load-modal
。
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h4 class="modal-title"><i class="fa fa-exchange"></i> <?php echo COUNTRYLABEL; ?></h4>
</div>
<div class="modal-body">
<form role="form" method="POST" action="self.php" name="addcountryform" id="addcountryform" class="form-horizontal">
<div class="form-group">
<div class="col-xs-3">
<label for="countryname" class="pull-right">Country Name</label>
</div>
<div class="col-xs-9">
<div class="lnbrd">
<input type="text" class="form-control" name="countryname" placeholder="Enter Country Name">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label for="crncyname" class="pull-right">Currency Name</label>
</div>
<div class="col-xs-9">
<div class="lnbrd">
<input type="text" class="form-control" name="crncyname" placeholder="Enter Currency Name">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label for="crncycode" class="pull-right">Currency Code</label>
</div>
<div class="col-xs-9">
<div class="lnbrd">
<input type="text" class="form-control" name="crncycode" placeholder="Enter Currency Code">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label for="forrate" class="pull-right">Foreign Currency Rate<?php echo isset($icon)?$icon:''; ?></label>
</div>
<div class="col-xs-9">
<div class="lnbrd">
<input type="text" class="form-control" name="forrate" placeholder="Enter Foreign Currency Rate.">
</div>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label for="taxpercent" class="pull-right">Tax %</label>
</div>
<div class="col-xs-9">
<div class="lnbrd">
<input type="text" class="form-control" name="taxpercent" placeholder="Enter Tax Percentage">
</div>
</div>
</div>
</form>
</div>
<div class="modal-footer clearfix">
<button type="button" class="btn btn-danger pull-right" id="addcountryformsubmitbtn">Add</button>
</div>
</div>
注意: - 在数据库的角度来看,代码按预期工作。
答案 0 :(得分:0)
我所看到的一些事情可能就是原因。
如果您正在使用IE,我已经看到在执行POST之前立即执行GET(到相同的URL,发送相同的数据),因此可能值得尝试在您的服务器上检查它(并忽略GET)
在AJAX调用之后,可能会在按钮单击事件结束时添加以下内容(实际上,通常我将第一行放在顶部并使用prevent default,并且返回语句显然是最后一次)...
e.stopImmediatePropagation();
return false;