拉维尔 5 : LengthAwarePaginator returned JSON not array

Question

我正在从 LengthAwarePaginator 返回 JSON，但 JSON 的 data 属性不是数组。我需要它是一个数组。有什么想法吗？

// grab query parameters
$pageNumber = $request->input('page');
$pageSize = $request->input('pageSize');
// if query params do not exist call with defaults
if(!$pageNumber) {
  $pageNumber = 1;
}

if(!$pageSize) {
  $pageSize = 5;
}

$offset = ($pageNumber * $pageSize) - $pageSize;
// slice full array data based on page number and page size
$itemsForCurrentPage = array_slice($arrayOfData, $offset, $pageSize, true);
return new LengthAwarePaginator($itemsForCurrentPage, count($this->orgUsers), $pageSize, $pageNumber);

返回数据:

{
"total": 30,
"per_page": 5,
"current_page": 2,
"last_page": 6,
"next_page_url": "/?page=3",
"prev_page_url": "/?page=1",
"from": 6,
"to": 10,
"data": {
    "5": {
    "userId": "564110eadcb39832268ea873",
    "email": "dsdfgdfg@il.com",
    "isActive": true,
    "firstName": "dsdfgdfg",
    "lastName": "dsdfgdfg",
    "permissionType": "dsdfgdfg"
    },
    "6": {
    "userId": "564110ea2169bc358a3b65c2",
    "email": "dsdfgdfg@d.com",
    "isActive": false,
    "firstName": "dsdfgdfg",
    "lastName": "dsdfgdfg",
    "permissionType": "dsdfgdfg"
    },
    "7": {
    "userId": "564110eaee662f30c4bd6772",
    "email": "dsdfgdfg@dsdfgdfg.com",
    "isActive": true,
    "firstName": "dsdfgdfg",
    "lastName": "dsdfgdfg",
    "permissionType": "dsdfgdfg"
    },
    "8": {
    "userId": "dsdfgdfg",
    "email": "dsdfgdfg@dsdfgdfg.com",
    "isActive": true,
    "firstName": "dsdfgdfg",
    "lastName": "dsdfgdfg"
    },
    "9": {
    "userId": "564110eaf9526eb5ddd673a4",
    "email": "dsdfgdfg@dsdfgdfg.com",
    "isActive": true,
    "firstName": "dsdfgdfg",
    "lastName": "dsdfgdfg"
    }
}
}

TIA

Answer 1

问题是 ids 在 array_slice 时仍然是数组的键。但是由于缺少一些键，尤其是 0, 1, 2, ... 数组从此被视为关联的 (['key1'=>'value1', 'key2'=>'value2 ', …]) 而不是数字索引 (['value1', 'value2', …]) 在编码为 json 时。

解决方案是在 array_slice(…) 之后调用 array_values()。

return new LengthAwarePaginator(array_values($itemsForCurrentPage), count($this->orgUsers), $pageSize, $pageNumber);

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编辑:如果您的 $arrayOfData 是 Eloquent/Illuminate Collection，您可以使用方法 ->slice($offset, $pageSize)->values() 就可以了。看起来更好!