Question

我有以下职能。一个人应当收到一张假药,然后通过美国宇宙航空研究开发机构转交该笔药。

Yet, while I know the "initiateSubCategories" function is working, for whatever reason the ajax function refuses to work. It s supposed to send the data to the very same file it s called in, and I have a feeling that this may be the issue.

这里是否有任何人错了? 我曾尝试通过对我的贾瓦文进行论证,但所有给我的人都对我的代码格式(这里不是问题,而是在我确定之后)提出了一些特尼特的悲tty抱怨。

我的守则如下:

function sendAjaxDataViaPost(pathToFile, ajaxData) {  
    $.post(pathToFile, function(ajaxData) {
        alert("Data loaded: " + ajaxData);
        $( #pageOne ).append( <pre>  + ajaxData  </pre> );
    });
}

function initiateSubCategories(parent) {
    //$("#pageOne").append("<pre>" + parent + "</pre>");
    sendAjaxDataViaPost( form.php , parent);
    <?php
        $categories = $this->formData->getCategories($_POST[ value ]);
    ?>
    printSubCategories(<?=$categories;?>);
}

因此,我错了吗? 我在Embeth和Kinor试图这样做,也未能生产任何东西。

<>Update>

我改变了职能,使用了以下格式:

$.post(pathToFile, { id: ajaxData }, function(ajaxData) {
    alert("Data loaded: " + ajaxData);
    $( #pageOne ).append( <pre>  + ajaxData  </pre> );
});

然而,当我试图提出<代码>_POST[id]时,它告诉我它没有提及。

???

<><>Update 2

I just found in FireBug s console that my "initiateSubCategories" function is undefined. What I d like to know is how this is possible...

我把我的整个法典放在后面——第二层眼睛可能确实有助于这一条。

<?php 

$target = JPATH_BASE.DS."index.php?action=com_adsmanager&task=save&Itemid=".$this->itemId;
$saveTarget = JPATH_BASE.DS."index.php?action=com_adsmanager&task=Itemid=".$this->itemId;

function populateCategories($parent, FormData $formData) {
    $categories = $formData->getCategories($parent);
    foreach($categories as $section => $row){
        ?>
           <option value=<?=$row[ id ];
        ?>>
        <?php 
            echo $row[ name ]; 
        ?>
            </option>
        <?php       
    }
}

?>

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js">
</script>
<script type="text/javascript">

    function sendAjaxDataViaPost(pathToFile, ajaxData) {  
        $.post(pathToFile, { id  : ajaxData}, function(ajaxData) {
            alert("Data loaded: " + ajaxData);
            $( #pageOne ).append( <pre>  + ajaxData  </pre> );
        });
    }

    function initiateSubCategories(parent) {
        sendAjaxDataViaPost( form.php , parent);
        $("#pageOne").apppend( <pre>  + <?=$_POST;?> +  </pre> ));
    }

    function printSubCategories(categories) {
        for (var i = 0; i < categories.length; i++) {
            var opt = document.createElement("option");
            opt.text = categories[ name ];
            opt.value = categories[ id ];

            $("#subcategories").append(opt);
        }    
    } 

</script>

<div id="pageOne">
    <form action=<?=$saveTarget;?> method="post" enctype="multipart/form-data">
        <select name="category" id="categories" class="ads_categories" onclick="initiateSubCategories(this.value);">
            <option value="0">--Please choose a category--</option>
            <?php populateCategories(0, $this->formData); ?>
        </select> 
        <select name="category" id="subcategories" class="ads_subcategories">
            <option value="0">--Please choose a subcategory--</option>
        </select> 
    </form>
</div>

Answer 1

改变你的职位要求

$.post(pathToFile, {  id : ajaxData }, function(ajaxData) {
    alert("Data loaded: " + ajaxData);
    $( #pageOne ).append( <pre>  + ajaxData  </pre> );
});

我假定,在你打电话之前,你通过阿加克斯·达塔寄出一些价值。

function sendAjaxDataViaPost(pathToFile, ajaxData) {

友情链接