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我正在使用罰款上傳（v5.0.1）與jQuery，jQuery.validate和jQuery.form插件的多字段形式的新事件，可以有零到兩個文件附件。精細上傳與表單選項問題
我有它的工作，但我有幾個問題之前，我走得更遠。
- 我的客戶端代碼爲每個文件（包括其他表單元素）生成一個POST請求，併爲其他表單元素生成一個POST請求。所以，如果我的表單有兩個文件附件，我得到三個POST請求。這是正常的行爲嗎？我可以在一個POST請求中獲取所有內容嗎？
- 如果多個POST請求是正常行爲，我將不得不在第一次POST請求之前在客戶端生成某種唯一標識符，這樣我就可以避免在數據庫中重複記錄事件記錄，並將每個文件上傳與正確的事件。如果這是我需要去的方向，那麼我可以看到這種類型的實現的例子嗎？
- 如果沒有附加文件，我會收到一個警告對話框：「沒有要上傳的文件。」該表單可以不帶文件附件提交，所以我不想暗示用戶他/她必須附加文件。我如何擺脫這個對話框？
- 我目前正在爲表單數據加上一個POST響應，每個文件上傳一個POST響應。有沒有辦法只處理最終的POST響應（例如，form.onAllComplete）？如果表單沒有文件附件怎麼辦？
- 我爲表單使用一個服務器端點，包括文件上載。我是否應該使用兩個單獨的端點，一個用於其他表單域，一個用於文件上傳？
這裏是我的形式：http://www.paulrachal.com/test/fineuploader-test.htm
這裏是我的代碼： 客戶：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0">
<title>New Event</title>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.0/jquery.mobile-1.4.0.min.css" />
<script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.0/jquery.mobile-1.4.0.min.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.13.0/jquery.validate.min.js"></script>
<script src="http://malsup.github.com/jquery.form.js"></script>
<!-- Fine Uploader -->
<link rel="stylesheet" href="../css/custom.fineuploader-5.0.1.min.css" />
<script src="../js/custom.fineuploader-5.0.1.min.js"></script>
<!-- document.ready -->
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
<!-- event handlers -->
// hide the file upload button when the page loads
$('#manual-fine-uploader').hide();
// show the file upload button on change in attachments checkbox
$("#hasattachments").change(function() {
if ($('#hasattachments:checked').length) {
$('#manual-fine-uploader').show();
}
else {
$('#manual-fine-uploader').hide();
}
})
<!-- Fine Uploader setup -->
var manualuploader = $('#manual-fine-uploader').fineUploader({
request: {
endpoint: 'fineuploader-test.php'
},
form: {
element: 'new-event'
},
template: "qq-template-manual-noedit",
validation: {
allowedExtensions: ['txt', 'pdf'],
itemLimit: 2,
sizeLimit: 256000 // 250 kB = 250 * 1024 bytes
},
autoUpload: false
});
<!-- form validation -->
// setup form validation on the form element
$("#new-event").validate({
// validation rules
rules: {
description: {
required: {
depends: function(element) {
if ($("input[name='eventtype']:checked").val() == "3" || $("input[name='eventtype']:checked").val() == "4" || $("input[name='eventtype']:checked").val() == "5")
return true;
}
}
},
},
// validation error messages
messages: {
description: "Please enter a description"
},
// submit handler
submitHandler: function(form) {
$("#send").attr("value", "Sending...");
$(form).ajaxSubmit({
target: "#response",
dataType: "json",
success: function processJson(response) {
if (response.success)
{
$(form).slideUp("fast");
$("#response").html("<span class='success'>" + response.success + "</span>").hide().slideDown("fast");
} // end if
else if (response.failure)
{
$("#response").empty();
$(".error").removeClass("error");
$errors = response.failure;
for ($i = 0; $i < $errors.length; $i++) {
$error = $errors[$i];
$.each($error, function(key, value) {
// append error text to div#response
$("#response").append("<li class='failure'>" + value + "</li>").hide();
// set form elements based on the error
switch(key) {
case "description-isempty":
$("#description").addClass("error");
break;
case "eventname-isempty":
$("#eventname").addClass("error");
break;
case "eventtype-isinvalid":
$("#eventtype-input").addClass("error");
break;
default:
// default statements if no cases are true
} // end switch
}); // end $.each
} // end for
$("#response").addClass("failure");
$("#response").slideDown("fast");
$("html, body").animate({ scrollTop: 0 }, "fast");
} // end else if
} // end processJson
});
return false;
}
}); // end #new-event.validate
<!-- validate individual fields on change -->
// #description
$('#description').on('change', function() {
$('#new-event').validate().element('#description');
});
}); // end document.ready
</script>
<!-- Fine Uploader Template -->
<script type="text/template" id="qq-template-manual-noedit">
<div class="qq-uploader-selector qq-uploader">
<div class="qq-upload-drop-area-selector qq-upload-drop-area" qq-hide-dropzone>
<span>Drop files here to upload</span>
</div>
<div class="qq-upload-button-selector qq-upload-button">
<div>Browse...</div>
</div>
<span class="qq-drop-processing-selector qq-drop-processing">
<span>Processing dropped files...</span>
<span class="qq-drop-processing-spinner-selector qq-drop-processing-spinner"></span>
</span>
<ul class="qq-upload-list-selector qq-upload-list">
<li>
<div class="qq-progress-bar-container-selector">
<div class="qq-progress-bar-selector qq-progress-bar"></div>
</div>
<span class="qq-upload-spinner-selector qq-upload-spinner"></span>
<span class="qq-upload-file-selector qq-upload-file"></span>
<span class="qq-upload-size-selector qq-upload-size"></span>
<a class="qq-upload-cancel-selector qq-upload-cancel" href="#">Cancel</a>
<span class="qq-upload-status-text-selector qq-upload-status-text"></span>
</li>
</ul>
</div>
</script>
<!-- styles -->
<style type="text/css">
.qq-upload-button-selector {
background: #0080FF;
}
#response {
margin-bottom: 20px;
text-align: center;
}
#response .success {
color: #08a300;
}
#response .failure {
color: #dc0000;
}
div.failure {
background-color: #FF0;
}
.error {
border: 2px solid red;
}
input.error {
border: 2px solid red;
}
select.error {
border: 2px solid red;
}
</style>
</head>
<body>
<!-- new-event-form -->
<div id="new-event-form" data-role="page">
<!-- header -->
<div data-role="header"><h1>NEW EVENT</h1></div>
<div class="content" data-role="content">
<div id="response"></div>
<form id="new-event" action="fineuploader-test.php" method="post">
<div data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Event Type:</legend>
<div id="eventtype-input">
<input type="radio" name="eventtype" id="eventtype_1" value="1" checked="checked" />
<label for="eventtype_1">Ride</label>
<input type="radio" name="eventtype" id="eventtype_2" value="2" />
<label for="eventtype_2">Clinic</label>
<input type="radio" name="eventtype" id="eventtype_3" value="3" />
<label for="eventtype_3">Social Event</label>
<input type="radio" name="eventtype" id="eventtype_4" value="4" />
<label for="eventtype_4">Meeting</label>
<input type="radio" name="eventtype" id="eventtype_5" value="5" />
<label for="eventtype_5">Non-Club Event</label>
</div>
</fieldset>
</div>
<div data-role="fieldcontain">
<label for="eventname">Event Name:</label>
<input type="text" name="eventname" id="eventname" value="" maxlength="40" required />
</div>
<div id="descriptioninput" data-role="fieldcontain">
<label for="description">Description:</label>
<input type="text" name="description" id="description" value="" maxlength="40" />
</div>
<div id="attachments" data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Attachments:</legend>
<input type="checkbox" name="hasattachments" id="hasattachments" value="1" />
<label for="hasattachments">Attachments</label>
</fieldset>
</div>
<div id="manual-fine-uploader">Browse...</div>
<div class="ui-body ui-body-b">
<fieldset class="ui-grid-a">
<div class="ui-block-a"><input type="reset" data-theme="d" value="Cancel"></div>
<div class="ui-block-b"><input type="submit" data-theme="a" value="Submit"></div>
</fieldset>
</div>
</form>
</div> <!-- /content -->
</div> <!-- /page -->
</body>
</html>
服務器：
<?php
// get values from POST request
$eventtype = $_POST['eventtype']; // eventtype field
$eventname = $_POST['eventname']; // eventname field
$description = $_POST['description']; // description field
$hasattachments = $_POST['hasattachments']; // hasattachments field
$qqfile = $_POST['qqfile']; // file upload field
$qquuid = $_POST['qquuid']; // file upload uuid
$qqfilename = $_POST['qqfilename']; // file upload filename
// include the upload handler class
require_once "handler.php";
// initialize errors array
$errors = array();
// validate elements
// eventtype
$eventtypes = array_flip(array('1', '2', '3', '4', '5'));
if (!isset($eventtypes[$eventtype])) $errors = addError("eventtype-isinvalid");
// eventname
$eventname = filter_var($eventname, FILTER_SANITIZE_STRING);
if(empty($eventname)) $errors = addError("eventname-isempty");
// description
$description = filter_var($description, FILTER_SANITIZE_STRING);
if (empty($description)) $errors = addError("description-isempty");
// file uploads
if ($hasattachments == 1) uploadFiles();
// functions
// add error
function addError($error) {
switch ($error)
{
case "description-isempty":
$errors[] = array("description-isempty" => "Please enter a description.");
break;
case "eventname-isempty":
$errors[] = array("eventname-isempty" => "Please enter an event name.");
break;
case "eventtype-isinvalid":
$errors[] = array("eventtype-isinvalid" => "Please select an event type.");
break;
} // end switch($error)
return $errors;
} // end function addError()
// file uploads
function uploadFiles() {
$uploader = new UploadHandler();
// specify the list of valid extensions
$uploader->allowedExtensions = array("txt", "pdf");
// specify max file size in bytes
$uploader->sizeLimit = 250 * 1024; // 250 kB
// specify the input name set in the javascript.
$uploader->inputName = "qqfile"; // matches Fine Uploader's default inputName value by default
// specify the folder to temporarily save parts to use the chunking/resume feature
$uploader->chunksFolder = "chunks";
$method = $_SERVER["REQUEST_METHOD"];
if ($method == "POST") {
header("Content-Type: text/plain");
// call handleUpload() with the name of the folder, relative to PHP's getcwd()
$result = $uploader->handleUpload("uploads/");
// get the name used for uploaded file
$result["uploadName"] = $uploader->getUploadName();
} // end if
} // end function uploadFiles()
// return response
if (!empty($errors)) $response = array("failure" => $errors);
else $response = array("success" => "Success! Your event has been posted.");
echo json_encode($response);
?>
你可能要修剪你的問題降低到最小的可重複的例子。 – 2014-12-05 22:34:57
它不可重現？這就是爲什麼我提供了工作表單的鏈接。 – paulr 2014-12-05 22:45:20
您的代碼示例都不適合堆棧溢出的堆棧片段工具，尤其是第二個。它們都不是真正可執行的，也不是必須的。我通常建議人們忘記存在堆棧片段，因爲它們很少合適，並且無論如何都存在堆棧溢出（例如jsbin）之外的更好的替代方案。 – 2014-12-06 02:09:11