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 (EventInterface $event, EntityInterface $entity, Table $table) {
$query = $table->find('all')->where([
'published' => true,
'user_id' => $entity->get('user_id')
]);
return $query->count();
}
]
] When using a lambda function you can return false to disable updating the counter value for the current operation.
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]);
array<string, mixed>Runtime config
boolWhether the config property has already been configured with defaults
array<string, mixed>Default configuration
array<string, array<string, bool>>Store the fields which should be ignored
array<string, array>Reflection method cache for behaviors.
Cake\ORM\TableTable instance.
Constructor
Deletes a single config key.
Reads a config key.
Writes a config key.
Fetches and returns the count for a single field in an association
Updates counter cache for a single association
Iterate all associations and update counter caches.
Gets the methods implemented by this behavior
Removes aliased methods that would otherwise be duplicated by userland configuration.
Checks if the count should be updated given a set of conditions.
afterDelete callback.
afterSave callback.
beforeSave callback.
Merge provided config with existing config. Unlike config() which does a recursive merge for nested keys, this method does a simple merge.
Returns the config.
Returns the config for this specific key.
Get the table instance this behavior is bound to.
Gets the Model callbacks this behavior is interested in.
implementedFinders
implementedMethods
Constructor hook method.
Sets the config.
Get the table instance this behavior is bound to.
verifyConfig
__construct(Cake\ORM\Table $table, array<string, mixed> $config = [])
Constructor
Merges config with the default and store in the config property
Cake\ORM\Table $table The table this behavior is attached to.
array<string, mixed> $config optional The config for this behavior.
_configDelete(string $key): void
Deletes a single config key.
string $key Key to delete.
voidCake\Core\Exception\CakeException_configRead(string|null $key): mixed
Reads a config key.
string|null $key Key to read.
mixed_configWrite(array<string, mixed>|string $key, mixed $value, string|bool $merge = false): void
Writes a config key.
array<string, mixed>|string $key Key to write to.
mixed $value Value to write.
string|bool $merge optional True to merge recursively, 'shallow' for simple merge, false to overwrite, defaults to false.
voidCake\Core\Exception\CakeException_getCount(array<string, mixed> $config, array $conditions): int
Fetches and returns the count for a single field in an association
array<string, mixed> $config The counter cache configuration for a single field
array $conditions Additional conditions given to the query
int_processAssociation(Cake\Event\EventInterface $event, Cake\Datasource\EntityInterface $entity, Cake\ORM\Association $assoc, array $settings): void
Updates counter cache for a single association
Cake\Event\EventInterface $event Event instance.
Cake\Datasource\EntityInterface $entity Entity
Cake\ORM\Association $assoc The association object
array $settings The settings for counter cache for this association
voidRuntimeException_processAssociations(Cake\Event\EventInterface $event, Cake\Datasource\EntityInterface $entity): void
Iterate all associations and update counter caches.
Cake\Event\EventInterface $event Event instance.
Cake\Datasource\EntityInterface $entity Entity.
void_reflectionCache(): array
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
arrayReflectionException_resolveMethodAliases(string $key, array<string, mixed> $defaults, array<string, mixed> $config): array
Removes aliased methods that would otherwise be duplicated by userland configuration.
string $key The key to filter.
array<string, mixed> $defaults The default method mappings.
array<string, mixed> $config The customized method mappings.
array_shouldUpdateCount(array $conditions): bool
Checks if the count should be updated given a set of conditions.
array $conditions Conditions to update count.
boolafterDelete(Cake\Event\EventInterface $event, Cake\Datasource\EntityInterface $entity, ArrayObject $options): void
afterDelete callback.
Makes sure to update counter cache when a record is deleted.
Cake\Event\EventInterface $event The afterDelete event that was fired.
Cake\Datasource\EntityInterface $entity The entity that was deleted.
ArrayObject $options The options for the query
voidafterSave(Cake\Event\EventInterface $event, Cake\Datasource\EntityInterface $entity, ArrayObject $options): void
afterSave callback.
Makes sure to update counter cache when a new record is created or updated.
Cake\Event\EventInterface $event The afterSave event that was fired.
Cake\Datasource\EntityInterface $entity The entity that was saved.
ArrayObject $options The options for the query
voidbeforeSave(Cake\Event\EventInterface $event, Cake\Datasource\EntityInterface $entity, ArrayObject $options): void
beforeSave callback.
Check if a field, which should be ignored, is dirty
Cake\Event\EventInterface $event The beforeSave event that was fired
Cake\Datasource\EntityInterface $entity The entity that is going to be saved
ArrayObject $options The options for the query
voidconfigShallow(array<string, mixed>|string $key, mixed|null $value = null): $this
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']);
array<string, mixed>|string $key The key to set, or a complete array of configs.
mixed|null $value optional The value to set.
$thisgetConfig(string|null $key = null, mixed $default = null): mixed
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'); Reading with default value:
$this->getConfig('some-key', 'default-value'); string|null $key optional The key to get or null for the whole config.
mixed $default optional The return value when the key does not exist.
mixedgetConfigOrFail(string $key): mixed
Returns the config for this specific key.
The config value for this key must exist, it can never be null.
string $key The key to get.
mixedInvalidArgumentExceptiongetTable(): Cake\ORM\Table
Get the table instance this behavior is bound to.
Cake\ORM\TableimplementedEvents(): array<string, mixed>
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.
array<string, mixed>implementedFinders(): array
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
arrayReflectionExceptionimplementedMethods(): array
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
arrayReflectionExceptioninitialize(array<string, mixed> $config): void
Constructor hook method.
Implement this method to avoid having to overwrite the constructor and call parent.
array<string, mixed> $config The configuration settings provided to this behavior.
voidsetConfig(array<string, mixed>|string $key, mixed|null $value = null, bool $merge = true): $this
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']);
array<string, mixed>|string $key The key to set, or a complete array of configs.
mixed|null $value optional The value to set.
bool $merge optional Whether to recursively merge or overwrite existing config, defaults to true.
$thisCake\Core\Exception\CakeExceptiontable(): Cake\ORM\Table
Get the table instance this behavior is bound to.
Cake\ORM\TableverifyConfig(): void
verifyConfig
Checks that implemented keys contain values pointing at callable.
voidCake\Core\Exception\CakeExceptionRuntime config
array<string, mixed>Whether the config property has already been configured with defaults
boolDefault configuration
These are merged with user-provided configuration when the behavior is used.
array<string, mixed>Store the fields which should be ignored
array<string, array<string, bool>>Reflection method cache for behaviors.
Stores the reflected method + finder methods per class. This prevents reflecting the same class multiple times in a single process.
array<string, array>Table instance.
Cake\ORM\Table
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https://api.cakephp.org/4.4/class-Cake.ORM.Behavior.CounterCacheBehavior.html