在AJAX中,由于以下请求,我在数据库中按类别检索文档的最后日期(例如类别发票、订单等(:
// In each category there can be several documents
$stmt = $bdd->prepare('SELECT file_name, max(file_creation) as file_creation, file_category
FROM all_files
WHERE ...
GROUP BY file_category');
$stmt ->execute(array(
...
));
$arr = $stmt->fetchAll();
echo json_encode($arr);
所以我把它放回JSON:
[
{
"File_name": "order_18"
"0": "order_18"
"File_creation": "2018-11-28"
"1": "2018-11-28"
"File_category": invoice "
"3": invoice "
}
{
"File_name": "order_18"
"0": "order_18"
"File_creation": "2018-11-25"
"1": "2018-11-25"
"File_category": "order"
"3": "order"
}
]
然后我想用jquery将每个数据放在正确的位置,如下所示:
$ ('#label-order').text('') // the text will have to be: 2018-11-25
$ ('#label-invoice').text('') // the text will have to be: 2018-11-28
问题是,我不知道如何恢复我感兴趣的数据,将其放在正确的位置,因为类别的数量会随着时间的推移而增加
所以我想做一些类似的事情,将数据返回到数据["invoice"] ["file_creation"]
和数据["order"] ["file_creation"]
:
[
"invoice": {
"File_name": "order_18"
"0": "order_18"
"File_creation": "2018-11-28"
"1": "2018-11-28"
"File_category": invoice "
"3": invoice "
}
"order": {
"File_name": "order_18"
"0": "order_18"
"File_creation": "2018-11-25"
"1": "2018-11-25"
"File_category": "order"
"3": "order"
}
]
这可能吗?如果是,我该怎么办?有更好的解决方案吗?
这是一个分别包含在发票和订单结果列表中的代码。在前端接收数据后,您可以使用简单的代码对所有项目进行分组:
var data = [
{
"File_name": "order_18",
"0": "order_18",
"File_creation": "2018-11-28",
"1": "2018-11-28",
"File_category": "invoice",
"3": "invoice "
},
{
"File_name": "order_18",
"0": "order_18",
"File_creation": "2018-11-25",
"1": "2018-11-25",
"File_category": "order",
"3": "order"
}
]
var categories = {
invoices: [],
orders: []
}
data.map((item) => {
if(item['File_category'] === 'order') {
categories.orders.push(item)
} else if(item['File_category'] === 'invoice') {
categories.invoices.push(item)
}
})
console.log(categories)
然后,您可以循环浏览特定类别,如类别、发票或类别、订单,并轻松地将其附加到正文中。
使用PHP代码执行此操作:
<?php
//$arrays = $stmt->fetchAll();
$arrays=
[
[
"File_name"=>"order_18",
"File_creation"=>"2018-11-28",
"File_category"=>"invoice",
],
[
"File_name"=>"order_18",
"File_creation"=>"2018-11-25",
"File_category"=>"order",
]
];
foreach($arrays as $index=>$array)
{
if(isset($array["File_category"]))
{
$key=$array["File_category"];
unset($array["File_category"]);
$arrays[$key][] = $array;
unset($arrays[$index]);
}
}
print_r($arrays);
//echo json_encode($arrays);
?>
结果将是:
Array
(
[invoice] => Array
(
[0] => Array
(
[File_name] => order_18
[File_creation] => 2018-11-28
)
)
[order] => Array
(
[0] => Array
(
[File_name] => order_18
[File_creation] => 2018-11-25
)
)
)