Laravel Eloquent 更新失败，但没有得到任何异常
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【中文标题】Laravel Eloquent 更新失败，但没有得到任何异常【英文标题】：Laravel Eloquent Update failed , but didn't get any exception 【发布时间】：2021-01-13 02:12:36 【问题描述】： $encodedArray = json_encode($existingArray);
try
$bandwidthUpdate = ClientBandwidth::where(['client_id' => $clientId, 'date' => $dateParam]);
if($bandwidthUpdate->update(['bandwidth' => $encodedArray]))
Log::info('bandwidth updated !! '.$dateParam.':::'.'bandwidth type '.$bandwidthType .' Client '.$clientId);
else
Log::error('bandwidth failed !! '.$dateParam.':::'.'bandwidth type '.$bandwidthType .' Client '.$clientId. ' Refernce '. $refernceKey);
catch (QueryException $e)
Log::error('Exception !! '.$e->getMessage());
Log::error('Exception !! '.$e->getTraceAsString());
Log::error('bandwidth update failed !! '.$dateParam.':::'.'bandwidth type '.$bandwidthType .' Client '.$clientId);
catch (Exception $ex)
Log::error('Exception !! '.$ex->getMessage());
Log::error('Exception !! '.$ex->getTraceAsString());
Log::error('bandwidth failed !! '.$dateParam.':::'.'bandwidth type '.$bandwidthType .' Client '.$clientId);
经常 $bandwidthUpdate->update(['bandwidth' => $encodedArray]) 返回 false。但我不知道为什么会这样。例外对我不起作用。任何人都知道如何获得未更新的确切原因。
这是数据库结构
CREATE TABLE `client_bandwidth` (
`id` varchar(64) NOT NULL,
`client_id` varchar(64) CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL,
`bandwidth` text DEFAULT NULL,
`total_bandwidth` bigint(20) NOT NULL DEFAULT 0,
`date` date DEFAULT NULL,
`created_at` timestamp NOT NULL DEFAULT current_timestamp() ON UPDATE current_timestamp(),
`updated_at` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00',
PRIMARY KEY (id)
);
这里是示例 $existingArray，然后它会解析到 json_encode 值发送到数据库。
"static":
"type": "static",
"data":
"0130":
"hour": "01:30",
"bandwidth": "1304802"
,
"0215":
"hour": "02:15",
"bandwidth": "1794285"
,
"0245":
"hour": "02:45",
"bandwidth": "534156"
,
"0300":
"hour": "03:00",
"bandwidth": "4105499"
,
"0315":
"hour": "03:15",
"bandwidth": "107027"
,
"0330":
"hour": "03:30",
"bandwidth": "1487364"
,
"0430":
"hour": "04:30",
"bandwidth": "417"
,
"0445":
"hour": "04:45",
"bandwidth": "3620927"
,
"0500":
"hour": "05:00",
"bandwidth": "8820971"
,
"0515":
"hour": "05:15",
"bandwidth": "40111"
,
"0530":
"hour": "05:30",
"bandwidth": "1759288"
,
"0545":
"hour": "05:45",
"bandwidth": "883860"
,
"0615":
"hour": "06:15",
"bandwidth": "48320"
,
"0630":
"hour": "06:30",
"bandwidth": "6324949"
,
"0645":
"hour": "06:45",
"bandwidth": "3543983"
,
"0715":
"hour": "07:15",
"bandwidth": "7186102"
,
"0730":
"hour": "07:30",
"bandwidth": "572259"
,
"0800":
"hour": "08:00",
"bandwidth": "1623099"
,
"0815":
"hour": "08:15",
"bandwidth": "2898736"
,
"0830":
"hour": "08:30",
"bandwidth": "1468575"
,
"0845":
"hour": "08:45",
"bandwidth": "17884836"
,
"0900":
"hour": "09:00",
"bandwidth": "14234340"
,
"0915":
"hour": "09:15",
"bandwidth": "10235920"
,
"0930":
"hour": "09:30",
"bandwidth": "89926519"
,
"0945":
"hour": "09:45",
"bandwidth": "1352073"
,
"1000":
"hour": "10:00",
"bandwidth": "901410"
,
"1030":
"hour": "10:30",
"bandwidth": "55466"
,
"1045":
"hour": "10:45",
"bandwidth": "2431095"
,
"1115":
"hour": "11:15",
"bandwidth": "417"
,
"1130":
"hour": "11:30",
"bandwidth": "1725818"
,
"1145":
"hour": "11:45",
"bandwidth": "1242887"
,
"1300":
"hour": "13:00",
"bandwidth": "34994"
,
"1330":
"hour": "13:30",
"bandwidth": "2914821"
,
"1345":
"hour": "13:45",
"bandwidth": "1721874"
,
"1415":
"hour": "14:15",
"bandwidth": "1587430"
,
"1430":
"hour": "14:30",
"bandwidth": "340454"
,
"1630":
"hour": "16:30",
"bandwidth": "48017"
,
"1700":
"hour": "17:00",
"bandwidth": "40867"
,
"1730":
"hour": "17:30",
"bandwidth": "118178"
,
"1800":
"hour": "18:00",
"bandwidth": "1328435"
,
"1815":
"hour": "18:15",
"bandwidth": "2587639"
,
"1845":
"hour": "18:45",
"bandwidth": "141667"
,
"2200":
"hour": "22:00",
"bandwidth": "72499"
,
"total_bandwidth": 199052386
,
"user_agent":
"type": "user_agent",
"data":
"0715":
"hour": "07:15",
"bandwidth": "1737"
,
"0845":
"hour": "08:45",
"bandwidth": "3230"
,
"total_bandwidth": 4967
【问题讨论】：
【参考方案1】：批量更新查询返回受查询影响的行数，不是 true/false 表示成功。
$bandwidthUpdate->update(['bandwidth' => $encodedArray]) 可以在两种情况下返回0：
$bandwidthUpdate查询返回0行
查询返回行但值未更改
因此，如果您使用相同的 $encodedArray 多次运行代码 - 第二点可能会解释为什么您每次都得到 0。
【讨论】：
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