/**
* Attempts to find cached models based on the current query.
*
* @return array
*/
private function findCachedModels()
{
if (!$this->sourceModel || !$this->sourceModel->isCacheing()) {
return false;
}
$uniqueKeys = $this->sourceModel->getUniqueKeys();
// Early validation allows us to fail immediately on obvious unsupported query types
if (empty($uniqueKeys) || $this->distinct || $this->limit > 1 || !empty($this->groups) || !empty($this->havings) || !empty($this->orders) || !empty($this->offset) || !empty($this->unions) || !empty($this->joins) || !empty($this->columns) || empty($this->wheres)) {
return false;
}
$query = new SquirrelQuery($this->wheres, $this->sourceObjectDeletedAtColumnName());
$searchingKey = $query->uniqueKeyString();
$modelKeys = SquirrelCache::uniqueKeys($this->sourceModel);
$cacheKeyPrefix = SquirrelCache::getCacheKeyPrefix(get_class($this->sourceModel));
if (array_key_exists($searchingKey, $modelKeys)) {
$cacheKeys = $query->cacheKeys($cacheKeyPrefix);
if (empty($cacheKeys)) {
return;
}
$models = [];
foreach ($cacheKeys as $key) {
$model = SquirrelCache::get($key);
if ($model) {
if ($deletedAt = $query->deletedAtObject()) {
if (array_key_exists($deletedAt->column, $model)) {
if ($deletedAt->value == SquirrelQueryWhere::WHERE_CLAUSE_TYPE_NULL && !empty($model[$deletedAt->column])) {
// The query requires the deleted at column be empty
return;
}
if ($deletedAt->value == SquirrelQueryWhere::WHERE_CLAUSE_TYPE_NOT_NULL && empty($model[$deletedAt->column])) {
// The query requires the deleted at column have a value
return;
}
} else {
// The deleted at column could not be found, so we are not going to return anything
return;
}
}
$models[] = (object) $model;
continue;
}
return;
}
return $models;
}
}
