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Cake3 update counter caches for association
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<?php | |
namespace App\Model\Table\Behavior; | |
trait UpdateCounterCacheTrait { | |
public function cleanupBelongsToMany($return_count = null) { | |
if($return_count) { | |
return $count; | |
} | |
return $this; | |
} | |
/** | |
* @param $association null|string|array | |
* null - update all CounterCaches | |
* string - update only the CounterCache for this association | |
* array - update CounterCaches for the listed associations, | |
* update only the fields listed like ['Tags' => ['count']] | |
* if no $cacheFields given, to update all set the key to true | |
* @param $cacheField null|string|array | |
* null - update all fields for the CounterCache(s) | |
* string - update only this field for the CounterCache(s) | |
* array - update the given fields in the CounterCache(s), | |
* overwriting possible set fields from the $association array | |
* @param $reset true|false | |
* reset the values to 0, if no matching entry could be found | |
* @throws RuntimeException when the CounterCacheBehavior is not attached | |
* @return int | |
* if $verbose_return == false, the total number of updated fields | |
*/ | |
public function updateCounterCache($association = null, $cacheField = null, $reset = true) { | |
$counterCache = $this->behaviors()->get('CounterCache'); | |
if(!$counterCache) { | |
throw new \RuntimeException('CounterCacheBehavior is not attached.'); | |
} | |
if(is_string($association)) { | |
$association = [$association => true]; | |
} | |
if(is_string($cacheField)) { | |
$cacheField = [$cacheField]; | |
} | |
$associations = $counterCache->config(); | |
if($association) { | |
$associations = array_intersect_key($associations, $association); | |
} | |
$total_count = 0; | |
foreach($associations as $assocName => $config) { | |
$assoc = $this->{$assocName}; | |
$foreign_key = $assoc->foreignKey(); | |
$target = $assoc->target(); | |
$conds = $assoc->conditions(); | |
if($cacheField) { | |
$config = array_intersect_key($config, array_flip($cacheField)); | |
} elseif(is_array($association[$assocName])) { | |
$config = array_intersect_key($config, array_flip($association[$assocName])); | |
} | |
foreach($config as $field => $options) { | |
if(is_numeric($field)) { | |
$field = $options; | |
$options = []; | |
} | |
if($reset) { | |
$target->query() | |
->update() | |
->set($field, 0) | |
->where($conds) | |
->execute() | |
; | |
} | |
if(!isset($options['conditions'])) { | |
$options['conditions'] = []; | |
} | |
$result = $this->query() | |
->select([$foreign_key, 'count' => $this->query()->newExpr('COUNT(*)')]) | |
->where($options['conditions']) | |
->group($foreign_key) | |
->toArray() | |
; | |
$totalrows = count($result); | |
$rowcount = 0; | |
$count = 0; | |
foreach($result as $row) { | |
if($rowcount++ > $totalrows / 100) { | |
$rowcount = 0; | |
} | |
$target->query() | |
->update() | |
->set($field, $row['count']) | |
->where([$target->primaryKey() => $row[$foreign_key]] + $conds) | |
->execute() | |
; | |
$count++; | |
} | |
$total_count += $count; | |
} | |
} | |
return $total_count; | |
} | |
} |
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Instead of $result->toArray() have kept as an object to avoid PHP out of memory errors when working with larger data sets. Take a look here: https://gist.github.com/chopstik/2c370a42080b4c97ea4c7c95f449433a