php Laravel 5.1 date_format 验证允许两种格式
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Laravel 5.1 date_format validation allow two formats
提问by karmendra
I use following date validation for incoming POST request.
我对传入的 POST 请求使用以下日期验证。
'trep_txn_date' => 'date_format:"Y-m-d H:i:s.u"'
This will only allow a date of this kind i.e. 2012-01-21 15:59:44.8
这将只允许此类日期，即 2012-01-21 15:59:44.8
I also want to allow date without the TIME e.g. 2012-01-21, which when sent to mysql db will automatically store as 2012-01-21 00:00:00.0
我还想允许没有 TIME 的日期，例如 2012-01-21，当发送到 mysql db 时，它会自动存储为 2012-01-21 00:00:00.0
Is there a way I can do this using a Laravel's existing validation rules. Is there a way to define multiple formats in date_format rule something like below.
有没有办法使用 Laravel 现有的验证规则来做到这一点。有没有办法在 date_format 规则中定义多种格式，如下所示。
'trep_txn_date' => 'date_format:"Y-m-d H:i:s.u","Y-m-d"' //btw this didn't work.
Thanks,
谢谢，
K
钾
回答by jedrzej.kurylo
The date_formatvalidator takes only one date format as parameter. In order to be able to use multiple formats, you'll need to build a custom validation rule. Luckily, it's pretty simple.
该DATE_FORMAT验证只需要一个日期格式参数。为了能够使用多种格式，您需要构建自定义验证规则。幸运的是，这很简单。
You can define the multi-format date validation in your AppServiceProviderwith the following code:
您可以使用以下代码在AppServiceProvider 中定义多格式日期验证：
class AppServiceProvider extends ServiceProvider
{
public function boot()
{
Validator::extend('date_multi_format', function($attribute, $value, $formats) {
// iterate through all formats
foreach($formats as $format) {
// parse date with current format
$parsed = date_parse_from_format($format, $value);
// if value matches given format return true=validation succeeded
if ($parsed['error_count'] === 0 && $parsed['warning_count'] === 0) {
return true;
}
}
// value did not match any of the provided formats, so return false=validation failed
return false;
});
}
}
You can later use this new validation rule like that:
您稍后可以像这样使用这个新的验证规则：
'trep_txn_date' => 'date_multi_format:"Y-m-d H:i:s.u","Y-m-d"'
You can read more about how to create custom validation rules here: http://laravel.com/docs/5.1/validation#custom-validation-rules
您可以在此处阅读有关如何创建自定义验证规则的更多信息：http: //laravel.com/docs/5.1/validation#custom-validation-rules
