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Class ErrorHandlerMiddleware
Error handling middleware.
Traps exceptions and converts them into HTML or content-type appropriate error pages using the CakePHP ExceptionRenderer.
- Cake\Error\Middleware\ErrorHandlerMiddleware uses Cake\Core\InstanceConfigTrait
Properties summary
-
$_defaultConfig
protectedarray
-
$exceptionRenderer
protectedCake\Error\ExceptionRendererInterface|string|null
Inherited Properties
Method Summary
-
__construct() publicConstructor
-
__invoke() publicWrap the remaining middleware with error handling.
-
getMessage() protectedGenerate the error log message.
-
getRenderer() protectedGet a renderer instance
-
handleException() publicHandle an exception and generate an error response
-
logException() protectedLog an error for the exception if applicable.
Method Detail
__construct()source public
__construct( string|callable|null $exceptionRenderer null , array $config [] )
Constructor
Parameters
-
string|callable|null
$exceptionRenderer
optional null -
The renderer or class name to use or a callable factory. If null, Configure::read('Error.exceptionRenderer') will be used.
-
array
$config
optional [] -
Configuration options to use. If empty,
Configure::read('Error')
will be used.
__invoke()source public
__invoke( Psr\Http\Message\ServerRequestInterface $request , Psr\Http\Message\ResponseInterface $response , callable $next )
Wrap the remaining middleware with error handling.
Parameters
-
Psr\Http\Message\ServerRequestInterface
$request
- The request.
-
Psr\Http\Message\ResponseInterface
$response
- The response.
-
callable
$next
- Callback to invoke the next middleware.
Returns
Psr\Http\Message\ResponseInterfaceA response
getMessage()source protected
getMessage( Psr\Http\Message\ServerRequestInterface $request , Exception $exception )
Generate the error log message.
Parameters
-
Psr\Http\Message\ServerRequestInterface
$request
- The current request.
-
Exception
$exception
- The exception to log a message for.
Returns
stringError message
getRenderer()source protected
getRenderer( Exception $exception )
Get a renderer instance
Parameters
-
Exception
$exception
- The exception being rendered.
Returns
Cake\Error\ExceptionRendererInterface
The exception renderer.
Throws
ExceptionWhen the renderer class cannot be found.
handleException()source public
handleException( Exception $exception , Psr\Http\Message\ServerRequestInterface $request , Psr\Http\Message\ResponseInterface $response )
Handle an exception and generate an error response
Parameters
-
Exception
$exception
- The exception to handle.
-
Psr\Http\Message\ServerRequestInterface
$request
- The request.
-
Psr\Http\Message\ResponseInterface
$response
- The response.
Returns
Psr\Http\Message\ResponseInterfaceA response
logException()source protected
logException( Psr\Http\Message\ServerRequestInterface $request , Exception $exception )
Log an error for the exception if applicable.
Parameters
-
Psr\Http\Message\ServerRequestInterface
$request
- The current request.
-
Exception
$exception
- The exception to log a message for.
Methods used from Cake\Core\InstanceConfigTrait
_configDelete()source protected
_configDelete( string $key )
Deletes a single config key.
Parameters
-
string
$key
- Key to delete.
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
_configRead()source protected
_configRead( string|null $key )
Reads a config key.
Parameters
-
string|null
$key
- Key to read.
Returns
mixed_configWrite()source protected
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
Writes a config key.
Parameters
-
string|array
$key
- Key to write to.
-
mixed
$value
- Value to write.
-
boolean|string
$merge
optional false -
True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Throws
Cake\Core\Exception\Exception
if attempting to clobber existing config
config()source public
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
Gets/Sets the config.
Usage
Reading the whole config:
$this->config();
Reading a specific value:
$this->config('key');
Reading a nested value:
$this->config('some.nested.key');
Setting a specific value:
$this->config('key', $value);
Setting a nested value:
$this->config('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->config(['one' => 'value', 'another' => 'value']);
Deprecated
3.4.0 use setConfig()/getConfig() instead.Parameters
-
string|array|null
$key
optional null - The key to get/set, or a complete array of configs.
-
mixed|null
$value
optional null - The value to set.
-
boolean
$merge
optional true - Whether to recursively merge or overwrite existing config, defaults to true.
Returns
mixedConfig value being read, or the object itself on write operations.
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
configShallow()source public
configShallow( string|array $key , mixed|null $value null )
Merge provided config with existing config. Unlike config()
which does a recursive merge for nested keys, this method does a simple merge.
Setting a specific value:
$this->configShallow('key', $value);
Setting a nested value:
$this->configShallow('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->configShallow(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key
- The key to set, or a complete array of configs.
-
mixed|null
$value
optional null - The value to set.
Returns
$this
getConfig()source public
getConfig( string|null $key null , mixed $default null )
Returns the config.
Usage
Reading the whole config:
$this->getConfig();
Reading a specific value:
$this->getConfig('key');
Reading a nested value:
$this->getConfig('some.nested.key');
Reading with default value:
$this->getConfig('some-key', 'default-value');
Parameters
-
string|null
$key
optional null - The key to get or null for the whole config.
-
mixed
$default
optional null - The return value when the key does not exist.
Returns
mixedConfig value being read.
setConfig()source public
setConfig( string|array $key , mixed|null $value null , boolean $merge true )
Sets the config.
Usage
Setting a specific value:
$this->setConfig('key', $value);
Setting a nested value:
$this->setConfig('some.nested.key', $value);
Updating multiple config settings at the same time:
$this->setConfig(['one' => 'value', 'another' => 'value']);
Parameters
-
string|array
$key
- The key to set, or a complete array of configs.
-
mixed|null
$value
optional null - The value to set.
-
boolean
$merge
optional true - Whether to recursively merge or overwrite existing config, defaults to true.
Returns
$this
Throws
Cake\Core\Exception\Exception
When trying to set a key that is invalid.
Properties detail
$_defaultConfigsource
protected array
Default configuration values.
log
Enable logging of exceptions.skipLog
List of exceptions to skip logging. Exceptions that extend one of the listed exceptions will also not be logged. Example:'skipLog' => ['Cake\Error\NotFoundException', 'Cake\Error\UnauthorizedException']
trace
Should error logs include stack traces?
[
'skipLog' => [],
'log' => true,
'trace' => false,
]
$exceptionRenderersource
protected Cake\Error\ExceptionRendererInterface
|string|null
Exception render.
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https://api.cakephp.org/3.4/class-Cake.Error.Middleware.ErrorHandlerMiddleware.html