我在下面写了几个脚本,它们分别很好地工作,但是它们并没有按照它们应该的方式工作。让我发布代码然后解释问题:
自动保存功能:
<script>
function autosave() {
$('form').each(function() {
var string = $(this).closest('form').serialize();
var $this = $(this);
$.ajax({
type: "POST",
url: "add_room.php",
data: string,
cache: false,
success: function(data){
var saveIcon = $this.siblings('.saveIcon');
$this.siblings('[type=hidden]').val(data);
saveIcon.fadeIn(750);
saveIcon.delay(500).fadeOut(750);
$('#message').text('The id of the inserted information is ' + data);
}
});
});
}
setInterval(autosave, 10 * 1000);
</script>
AJAX发布和返回脚本:
<script>
$(document).ready(function() {
$('body').on('click', '.save', function(e) {
var string = $(this).closest('form').serialize();
var $this = $(this);
$.ajax({
type: "POST",
url: "add_room.php",
data: string,
cache: false,
success: function(data){
var saveIcon = $this.siblings('.saveIcon');
$this.siblings('[type=hidden]').val(data);
saveIcon.fadeIn(750);
saveIcon.delay(500).fadeOut(750);
$('#message').text('The id of the inserted information is ' + data);
}
});
});
});
$(document).ready(function(){
$('#addForm').on('click', function(){
$('<form method="post" action="add_room.php"><label for="itemName[]">Item</label><input type="text" name="itemName[]"><label for="itemPhoto[]">Photo</label><input type="text" name="itemPhoto[]"><input type="hidden" name="itemId[]" value=""><input type="hidden" name="itemParent[]" value="<?=$_GET["room"]?>"><div class="saveIcon" style="display: none; color: green;">SAVED!</div><div class="save">Save Item</div></form>').fadeIn(500).appendTo('.addItem');
});
});
</script>
形式:
<form method="post" action="add_room.php">
<label for="itemName[]">Item</label>
<input type="text" name="itemName[]">
<label for="itemPhoto[]">Item</label>
<input type="text" name="itemPhoto[]">
<input type="hidden" name="itemId[]" value="">
<input type="hidden" name="itemParent[]" value="<?=$_GET['room']?>">
<div class="saveIcon" style="display: none; color: green;">SAVED!</div>
<div class="save">Save Item</div>
</form>
PHP:
<?PHP
require_once('dbConfig.php');
$item = $_POST['itemName'];
$photo = $_POST['itemPhoto'];
$id = $_POST['itemId'];
$parentId = $_POST['itemParent'];
foreach($item as $key => $val) {
if(!$id[$key]) {
if ($stmt = $db->prepare("INSERT test (test_title, test_desc, test_parent) VALUES (?, ?, ?)"))
{
// Use an s per variable passed to the string, example - "ss", $firstname, $lastname
$stmt->bind_param("ssi", $val, $photo[$key], $parentId[$key]);
$stmt->execute();
$stmt->close();
echo $db->insert_id;
//echo "success";
}
// show an error if the query has an error
else
{
echo "ERROR: Could not prepare Insert SQL statement.";
}
}
else
{
if ($stmt = $db->prepare("UPDATE test SET test_title = ?, test_desc = ? WHERE test_id = ?"))
{
// Use an s per variable passed to the string, example - "ss", $firstname, $lastname
$stmt->bind_param("ssi", $val, $photo[$key], $id[$key]);
$stmt->execute();
$stmt->close();
echo $id[$key];
//echo "success";
}
// show an error if the query has an error
else
{
echo "ERROR: Could not prepare Update SQL statement.";
}
}
}
?>
现在,第二个脚本发生的情况是,在没有自动保存的情况下单独使用时,当您填写表单并单击“保存”时,它将获取表单数据并将其保存到数据库中的必要行,然后返回刚刚保存的内容的id并将该数据放入隐藏字段中,以便在需要插入查询或需要更新查询时(当返回的id存在时),php脚本可以解决。还有一个名为addForm的可点击div,然后在另一个表单下面添加另一个表单集,再次点击它的保存按钮时,该表单将在数据库中保存/更新。当我在我的代码中触发自动保存时,自动保存字面上采用所有表单并将它们保存为新条目,但不返回id /更新隐藏字段以触发更新序列。你能否对此有所了解?这真让我烦恼。我尽力解释这个,对不起,这太久了。这有点复杂!哈哈
答案 0 :(得分:1)
我建议对代码的组织进行一些更改,然后更容易识别错误。
function postForm(form) {
var $this = $(form);
var string = $this.serialize();
$.ajax({
type: "POST",
url: "add_room.php",
data: string,
cache: false,
success: function(data){
var saveIcon = $this.find('.saveIcon');
$this.find('[type=hidden]').val(data);
saveIcon.fadeIn(750);
saveIcon.delay(500).fadeOut(750);
$('#message').text('The id of the inserted information is ' + data);
}
});
}
function autosave() {
$('form').each(function() {
postForm(this);
});
}
setInterval(autosave, 10 * 1000);
$(document).ready(function() {
$('body').on('click', '.save', function(e) {
postForm($(this).closest('form').get(0));
});
$('#addForm').on('click', function(){
$('<form method="post" action="add_room.php"><label for="itemName[]">Item</label><input type="text" name="itemName[]"><label for="itemPhoto[]">Photo</label><input type="text" name="itemPhoto[]"><input type="hidden" name="itemId[]" value=""><input type="hidden" name="itemParent[]" value="<?=$_GET["room"]?>"><div class="saveIcon" style="display: none; color: green;">SAVED!</div><div class="save">Save Item</div></form>').fadeIn(500).appendTo('.addItem');
});
});
基本上我采用了重复的逻辑并将其放入更通用的函数中。