CounterCache behavior
Enables models to cache the amount of connections in a given relation.
Examples with Post model belonging to User model
Regular counter cache
[ 'Users' => [ 'post_count' ] ]
Counter cache with scope
[ 'Users' => [ 'posts_published' => [ 'conditions' => [ 'published' => true ] ] ] ]
Counter cache using custom find
[ 'Users' => [ 'posts_published' => [ 'finder' => 'published' // Will be using findPublished() ] ] ]
Counter cache using lambda function returning the count This is equivalent to example #2
[ 'Users' => [ 'posts_published' => function (Event $event, EntityInterface $entity, Table $table) { $query = $table->find('all')->where([ 'published' => true, 'user_id' => $entity->get('user_id') ]); return $query->count(); } ] ]
Ignore updating the field if it is dirty
[ 'Users' => [ 'posts_published' => [ 'ignoreDirty' => true ] ] ]
You can disable counter updates entirely by sending the ignoreCounterCache
option to your save operation:
$this->Articles->save($article, ['ignoreCounterCache' => true]);
$_ignoreDirty
protected array
_getCount( array $config , array $conditions )
Fetches and returns the count for a single field in an association
$config
$conditions
_processAssociation( Cake\Event\Event $event , Cake\Datasource\EntityInterface $entity , Cake\ORM\Association $assoc , array $settings )
Updates counter cache for a single association
Cake\Event\Event
$event
Cake\Datasource\EntityInterface
$entity
Cake\ORM\Association
$assoc
$settings
_processAssociations( Cake\Event\Event $event , Cake\Datasource\EntityInterface $entity )
Iterate all associations and update counter caches.
Cake\Event\Event
$event
Cake\Datasource\EntityInterface
$entity
afterDelete( Cake\Event\Event $event , Cake\Datasource\EntityInterface $entity , ArrayObject $options )
afterDelete callback.
Makes sure to update counter cache when a record is deleted.
Cake\Event\Event
$event
Cake\Datasource\EntityInterface
$entity
$options
afterSave( Cake\Event\Event $event , Cake\Datasource\EntityInterface $entity , ArrayObject $options )
afterSave callback.
Makes sure to update counter cache when a new record is created or updated.
Cake\Event\Event
$event
Cake\Datasource\EntityInterface
$entity
$options
beforeSave( Cake\Event\Event $event , Cake\Datasource\EntityInterface $entity , ArrayObject $options )
beforeSave callback.
Check if a field, which should be ignored, is dirty
Cake\Event\Event
$event
Cake\Datasource\EntityInterface
$entity
$options
__construct( Cake\ORM\Table $table , array $config [] )
Constructor
Merges config with the default and store in the config property
Cake\ORM\Table
$table
$config
optional [] _reflectionCache( )
Gets the methods implemented by this behavior
Uses the implementedEvents() method to exclude callback methods. Methods starting with _
will be ignored, as will methods declared on Cake\ORM\Behavior
_resolveMethodAliases( string $key , array $defaults , array $config )
Removes aliased methods that would otherwise be duplicated by userland configuration.
$key
$defaults
$config
getTable( )
Get the table instance this behavior is bound to.
Cake\ORM\Table
implementedEvents( )
Gets the Model callbacks this behavior is interested in.
By defining one of the callback methods a behavior is assumed to be interested in the related event.
Override this method if you need to add non-conventional event listeners. Or if you want your behavior to listen to non-standard events.
Cake\Event\EventListenerInterface::implementedEvents()
implementedFinders( )
implementedFinders
Provides an alias->methodname map of which finders a behavior implements. Example:
[ 'this' => 'findThis', 'alias' => 'findMethodName' ]
With the above example, a call to $Table->find('this')
will call $Behavior->findThis()
and a call to $Table->find('alias')
will call $Behavior->findMethodName()
It is recommended, though not required, to define implementedFinders in the config property of child classes such that it is not necessary to use reflections to derive the available method list. See core behaviors for examples
implementedMethods( )
implementedMethods
Provides an alias->methodname map of which methods a behavior implements. Example:
[ 'method' => 'method', 'aliasedmethod' => 'somethingElse' ]
With the above example, a call to $Table->method()
will call $Behavior->method()
and a call to $Table->aliasedmethod()
will call $Behavior->somethingElse()
It is recommended, though not required, to define implementedFinders in the config property of child classes such that it is not necessary to use reflections to derive the available method list. See core behaviors for examples
initialize( array $config )
Constructor hook method.
Implement this method to avoid having to overwrite the constructor and call parent.
$config
verifyConfig( )
verifyConfig
Checks that implemented keys contain values pointing at callable.
Cake\Core\Exception\Exception
_configDelete( string $key )
Deletes a single config key.
$key
Cake\Core\Exception\Exception
_configRead( string|null $key )
Reads a config key.
$key
_configWrite( string|array $key , mixed $value , boolean|string $merge false )
Writes a config key.
$key
$value
$merge
optional false True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
Cake\Core\Exception\Exception
config( string|array|null $key null , mixed|null $value null , boolean $merge true )
Gets/Sets the config.
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']);
$key
optional null $value
optional null $merge
optional true Cake\Core\Exception\Exception
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->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']);
$key
$value
optional null getConfig( string|null $key null )
Returns the config.
Reading the whole config:
$this->getConfig();
Reading a specific value:
$this->getConfig('key');
Reading a nested value:
$this->getConfig('some.nested.key');
$key
optional null setConfig( string|array $key , mixed|null $value null , boolean $merge true )
Sets the config.
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']);
$key
$value
optional null $merge
optional true Cake\Core\Exception\Exception
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https://api.cakephp.org/3.4/class-Cake.ORM.Behavior.CounterCacheBehavior.html