[英]Populate jquery form from nested array of $_POST
PHP表單使用jquery腳本添加基於http://jsfiddle.net/L3s3w/4/的字段和子字段。
$(function(){
var nbIteration = 1;
var detailIteration = 1;
$("#addIteration").click(function(){
nbIteration++;
$("#content-contact").append('<div class="iteration"><h3>Track '+ nbIteration +'<span class="controlButtons"><input type="button" value="+" class="plus" /><input type="button" value="-" class="moins" /></span></h3><input type="text" name="Track'+ nbIteration +'" value="Track Title" /></div>');
});
$("#removeIteration").click(function(){
if($(".iteration").length > 0){
nbIteration--;
$(".iteration").last().remove();
}
});
$("#content-contact").on("click", ".plus",function(){
var parent = $(this).closest(".iteration");
parent.append('<input type="text" value="Track Details" name="Track_'+ nbIteration + '_' + detailIteration +'"/>');
detailIteration++;
var nbinput = parent.find("input[type='text']").length;
if(nbinput == 5)
parent.find(".plus").prop("disabled",true);
if(nbinput > 0)
parent.find(".moins").prop("disabled",false);
});
$("#content-contact").on("click",".moins", function(){
var parent = $(this).closest(".iteration");
parent.children("input").last().remove();
var nbinput = parent.find("input[type='text']").length;
if(nbinput < 5)
parent.find(".plus").prop("disabled",false);
if(nbinput == 0)
parent.find(".moins").prop("disabled",true);
});
});
我使用php來驗證表單,並通過基於$ _POST數據生成的嵌套數組簡單地重新創建初始的jquery-rendered字段來重新填充字段。
$num_tracks = 0;
$num_deets = 0;
foreach ($_POST as $detail => $specific)
{//If it's not one of the fields above
if (!in_array($detail, $basic_info))
//If no underscore goes in outer array
if (!strpos($detail, "_"))
{
if ($num_deets != 0) $num_tracks++;
//assign new top level key for track
$tracks[$num_tracks][$detail] = $specific;
}
else
{
$tracks[$num_tracks][$detail] = $specific;
$num_deets++;
}
然后在php中重新創建字段:
<?php //if we have tracks
if (isset($tracks)){
$track_no = 0;
$detail_no = 0;
foreach ($tracks as $track => $track_detail)
{
$track_no++;
?>
<h3>Track <?php echo "$track_no"; ?> <span class="controlButtons"><input type="button" value="+" class="plus" /><input type="button" value="-" class="moins" /></span></h3>
<?php foreach ($track_detail as $detail => $specific)
{
$detail_no++;
?>
<input type="text" value="<?php echo $specific; ?>" name="<?php echo $detail; ?>"/>
<?php } ?>
<?php
}
}else{
我嘗試在jquery中使用php count變量,但很快意識到,由於迭代不在jquery代碼內,因此添加和刪除字段的jquery不再起作用。
我是否可以使用php腳本最后一部分的jquery變體(上面)來重新創建jquery表單字段,並使用嵌套數組中的$ _POST數據填充該字段,或者是否需要重寫腳本以使用ajax和/或JSON在表單處理中?
感謝您的見解。
答案是肯定的,如果JavaScript要返回由$ _POST數據填充的動態生成的字段並繼續操作它們(添加和刪除字段),則JavaScript必須處理表單驗證。 因此,將表單數據發送到php將需要第二個php文件和ajax來將信息加載到頁面上。
最終僅使用http://formvalidator.net/進行驗證,然后再提交到服務器,然后返回提交的值僅用於查看(不更新)。
這是用於解析表單中數據的代碼,將頂級迭代字段與輔助字段(或其他字段)分開,以發送至電子郵件或瀏覽器:
//Define what is not to be considered as a track detail
$basic_info = array('Name','Email','Notes','Project_Name','Artist_Name');
$num_tracks = 0;
foreach ($_POST as $detail => $specific)
{//If it's not one of the fields above
if (!in_array($detail, $basic_info))
//If no underscore it's a TRACK so goes in outer array
if (!strpos($detail, "_"))
{
$num_deets = 0; // reset number of details
$num_tracks++; // we have a new track
//assign new top level key for track
$tracks[$num_tracks][$detail] = $specific;
$num_deets++; //we have one detail
}
else
{
//assign to secondary array of details
$tracks[$num_tracks][$detail] = $specific;
$num_deets++;//we have a new detail
$detail = "\tDetail";
}
//add to the message with underscore removed
$message .= "\n" . str_replace("_", " ", $detail).": ". $specific."\n";
}
這是JavaScript:
<script type="text/javascript">
$(function(){
var nbIteration = 1;
var detailIteration = 1;
$("#addIteration").click(function(){
nbIteration++;
var detailIteration = 1;
$("#content-contact").append('<div class="iteration"><h3>Track '+ nbIteration +'<span class="controlButtons"><input type="button" value="+" class="plus" /><input type="button" value="-" class="moins" /></span></h3><input type="text" name="Track'+ nbIteration +'" value="Track Title" /></div>');
});
$("#removeIteration").click(function(){
if($(".iteration").length > 0){
nbIteration--;
$(".iteration").last().remove();
}
});
$("#content-contact").on("click", ".plus",function(){
var parent = $(this).closest(".iteration");
parent.append('<input type="text" value="Track Details" name="Track_'+ nbIteration + '_' + detailIteration +'"/>');
detailIteration++;
var nbinput = parent.find("input[type='text']").length;
if(nbinput == 5)
parent.find(".plus").prop("disabled",true);
if(nbinput > 0)
parent.find(".moins").prop("disabled",false);
});
$("#content-contact").on("click",".moins", function(){
var parent = $(this).closest(".iteration");
parent.children("input").last().remove();
var nbinput = parent.find("input[type='text']").length;
if(nbinput < 5)
parent.find(".plus").prop("disabled",false);
if(nbinput == 0)
parent.find(".moins").prop("disabled",true);
});
});
</script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery-form-validator/2.1.47/jquery.form-validator.min.js"></script>
<script> $.validate({
form : '#registration'
}); </script>
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