调用成员函数的格式（）布尔CakePHP中3

Question

我使用CakePHP 3.4

我收到游客使用

$profile_visit_logs = $this->Users->LogProfileVisits->find() 
    ->where(['user_id' => $user->id]); 
$profile_visit_logs->select([ 
    'total_count' => $profile_visit_logs->func()->count('id'), 
    'unique_count' => $profile_visit_logs->func()->count('DISTINCT `ip_address`'), 
    'visit_date' => 'MONTH(created)' 
]) 
->group('visit_date') 
->limit(10); 

从LogProfileVisits表计数，但这个被赋予致命错误的

Error: Call to a member function format() on boolean 
File /path_to_app/vendor/cakephp/chronos/src/Traits/FrozenTimeTrait.php 
Line: 161 

同样是工作的罚款DATE(created)和YEAR(created)

错误日志

2017-06-02 12:25:45 Warning: Warning (2): DateTimeImmutable::modify() [<a href='http://php.net/datetimeimmutable.modify'>datetimeimmutable.modify</a>]: Failed to parse time string (5) at position 0 (5): Unexpected character in [/path_to_app/vendor/cakephp/chronos/src/Traits/FrozenTimeTrait.php, line 160] 
Request URL: /dashboard/profile/ajax_profile_performance 
Referer URL: http://example.com/dashboard 
Client IP: client_ip 
Trace: 
Cake\Error\BaseErrorHandler::handleError() - CORE/src/Error/BaseErrorHandler.php, line 153 
DateTimeImmutable::modify() - [internal], line ?? 
Cake\Chronos\Date::modify() - ROOT/vendor/cakephp/chronos/src/Traits/FrozenTimeTrait.php, line 160 
Cake\Database\Type\DateTimeType::toPHP() - CORE/src/Database/Type/DateTimeType.php, line 139 
Cake\Database\Type\DateType::toPHP() - CORE/src/Database/Type/DateType.php, line 90 
Cake\Database\FieldTypeConverter::__invoke() - CORE/src/Database/FieldTypeConverter.php, line 78 
Cake\Database\Statement\CallbackStatement::fetch() - CORE/src/Database/Statement/CallbackStatement.php, line 59 
Cake\ORM\ResultSet::_fetchResult() - CORE/src/ORM/ResultSet.php, line 484 
Cake\ORM\ResultSet::valid() - CORE/src/ORM/ResultSet.php, line 276 
App\Controller\Dashboard\ProfileController::ajaxProfilePerformance() - APP/Controller/Dashboard/ProfileController.php, line 113 
Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 440 
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 119 
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 93 
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 78 
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65 
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 59 
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65 
Cake\Routing\Middleware\AssetMiddleware::__invoke() - CORE/src/Routing/Middleware/AssetMiddleware.php, line 88 
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65 
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 92 
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65 
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51 
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 80 
[main] - ROOT/webroot/index.php, line 37 



2017-06-02 12:25:45 Error: Fatal Error (1): Call to a member function format() on boolean in [/path_to_app/vendor/cakephp/chronos/src/Traits/FrozenTimeTrait.php, line 161] 
Request URL: /dashboard/profile/ajax_profile_performance 
Referer URL: http://profplus.in/dashboard 
Client IP: client_ip 
Trace: 
Cake\Error\BaseErrorHandler::handleFatalError() - CORE/src/Error/BaseErrorHandler.php, line 223 
Cake\Error\BaseErrorHandler::Cake\Error\{closure}() - CORE/src/Error/BaseErrorHandler.php, line 105 
[main] - [internal], line ?? 



2017-06-02 12:25:46 Warning: Headers already sent in /path_to_app/vendor/cakephp/cakephp/src/Error/Debugger.php:822 
2017-06-02 12:25:46 Error: [Cake\Error\FatalErrorException] Call to a member function format() on boolean in /path_to_app/vendor/cakephp/chronos/src/Traits/FrozenTimeTrait.php on line 161 
Request URL: /dashboard/profile/ajax_profile_performance 
Referer URL: http://example.com/dashboard 
Client IP: client_ip 
Stack Trace: 
#0 /path_to_app/vendor/cakephp/cakephp/src/Error/BaseErrorHandler.php(105): Cake\Error\BaseErrorHandler->handleFatalError(1, 'Call to a membe...', '/home/thebornen...', 161) 
#1 [internal function]: Cake\Error\BaseErrorHandler->Cake\Error\{closure}() 
#2 {main} 

Answer 1

望着堆栈跟踪时，ORM似乎对待visit_date列作为DATE类型，可以通过DateType::toPHP()正在调用的行来判断：

Cake\Database\Type\DateType::toPHP() - CORE/src/Database/Type/DateType.php, line 90 

这就是事情开始出错，数量5（的MONTH(created)的结果）不是有效的日期时间值，因此你结束了一个null价值，努力当然后导致致命错误调用一个方法就可以了：

警告（2）：DateTimeImmutable ::修改（）[...]解析失败时间串（5）

的DATE()或YEAR()的结果是有效的，前者显然会返回一个可解析的日期，而后一年，这可能不明显，但也可以解析，但它将被视为时间值，例如2017将被解释为20:17。你最终会得到一个无用/错误的日期对象，但它不会出错。

http://www.php.net/manual/en/datetimeimmutable.modify.php

所以长话短说，你需要弄清楚为什么ORM把列作为DATE类型。这肯定不是默认的，默认情况下，计算/虚拟列将被视为字符串。如果visit_date不是您在评论中所述的现有列，那么可能是一对一的，并且您还没有清除缓存！

应该没有必要解决这个问题，这应该可以妥善解决您的问题。将鼠标悬停你可以尝试改变选择/类型映射，看它是否有什么差别，你也应该尝试以调试它整个控制流程进行了解，事情可能出错：

$query->getSelectTypeMap()->addDefaults(['visit_date' => 'integer']); 

$query->getTypeMap()->addDefaults(['visit_date' => 'integer']); 

Answer 2

试试这个代码，以便它知道使用什么型号：

$this->loadModel('LogProfileVisits');