/**
* Hydrate model instances with retrieved data
*
* @param array &$row Row from the database
* @param array $models Relations to be expected
* @param array $result Current result array (by reference)
* @param string $model Optionally. Model classname to hydrate
* @param array $select Optionally. Columns to use
* @param array $primary_key Optionally. Primary key(s) for this model
*
* @return Model
*/
public function hydrate(&$row, $models, &$result, $model = null, $select = null, $primary_key = null)
{
// First check the PKs, if null it's an empty row
foreach ($select as $column) {
if (is_string($column[0])) {
$r1c1 = $column;
break;
}
}
$prefix = substr($r1c1[0], 0, strpos($r1c1[0], '.') + 1);
$obj = array();
foreach ($primary_key as $pk) {
$pk_c = null;
foreach ($select as $s) {
$s[0] === $prefix . $pk and $pk_c = $s[1];
}
if (is_null($row[$pk_c])) {
return false;
}
$obj[$pk] = $row[$pk_c];
}
// Check for cached object
$pk = count($primary_key) == 1 ? reset($obj) : '[' . implode('][', $obj) . ']';
$obj = $this->from_cache ? Model::cached_object($pk, $model) : false;
// Create the object when it wasn't found
if (!$obj) {
// Retrieve the object array from the row
$obj = array();
foreach ($select as $s) {
if ($s[0] instanceof \Fuel\Core\Database_Expression) {
$f = isset($this->select[$s[1]][1]) ? $this->select[$s[1]][1] : $s[1];
} else {
$f = substr($s[0], strpos($s[0], '.') + 1);
}
$obj[$f] = $row[$s[1]];
if (in_array($f, $primary_key)) {
$obj[$f] = \Orm\Observer_Typing::typecast($f, $obj[$f], call_user_func($model . '::property', $f));
}
unset($row[$s[1]]);
}
$obj = $model::forge($obj, false, $this->view ? $this->view['_name'] : null, $this->from_cache);
} else {
// add fields not present in the already cached version
foreach ($select as $s) {
$f = substr($s[0], strpos($s[0], '.') + 1);
if (!isset($obj->{$f})) {
$obj->{$f} = $row[$s[1]];
}
}
}
// if the result to be generated is an array and the current object is not yet in there
if (is_array($result) and !array_key_exists($pk, $result)) {
$result[$pk] = $obj;
} elseif (!is_array($result) and empty($result)) {
$result = $obj;
}
// start fetching relationships
$rel_objs = $obj->_relate();
$relations_updated = array();
foreach ($models as $m) {
// when the expected model is empty, there's nothing to be done
if (empty($m['model'])) {
continue;
}
$relations_updated[] = $m['rel_name'];
// when not yet set, create the relation result var with null or array
if (!array_key_exists($m['rel_name'], $rel_objs)) {
$rel_objs[$m['rel_name']] = $m['relation']->singular ? null : array();
}
// when result is array or singular empty, try to fetch the new relation from the row
$this->hydrate($row, !empty($m['models']) ? $m['models'] : array(), $rel_objs[$m['rel_name']], $m['model'], $m['columns'], $m['primary_key']);
}
// attach the retrieved relations to the object and update its original DB values
$obj->_relate($rel_objs);
$obj->_update_original_relations($relations_updated);
return $obj;
}
/**
* Hydrate model instances with retrieved data
*
* @param array row from the database
* @param array relations to be expected
* @param array current result array (by reference)
* @param string model classname to hydrate
* @param array columns to use
*/
public function hydrate(&$row, $models, &$result, $model = null, $select = null, $primary_key = null)
{
// First check the PKs, if null it's an empty row
$r1c1 = reset($select);
$prefix = substr($r1c1[0], 0, strpos($r1c1[0], '.') + 1);
$obj = array();
foreach ($primary_key as $pk) {
$pk_c = null;
foreach ($select as $s) {
$s[0] === $prefix . $pk and $pk_c = $s[1];
}
if (is_null($row[$pk_c])) {
return false;
}
$obj[$pk] = $row[$pk_c];
}
// Check for cached object
$pk = count($primary_key) == 1 ? reset($obj) : '[' . implode('][', $obj) . ']';
$obj = Model::cached_object($pk, $model);
// Create the object when it wasn't found
if (!$obj) {
// Retrieve the object array from the row
$obj = array();
foreach ($select as $s) {
$obj[substr($s[0], strpos($s[0], '.') + 1)] = $row[$s[1]];
unset($row[$s[1]]);
}
$obj = $model::factory($obj, false);
}
// if the result to be generated is an array and the current object is not yet in there
if (is_array($result) and !array_key_exists($pk, $result)) {
$result[$pk] = $obj;
} elseif (!is_array($result) and empty($result)) {
$result = $obj;
}
// start fetching relationships
$rel_objs = $obj->_relate();
foreach ($models as $m) {
// when the expected model is empty, there's nothing to be done
if (empty($m['model'])) {
continue;
}
// when not yet set, create the relation result var with null or array
if (!array_key_exists($m['rel_name'], $rel_objs)) {
$rel_objs[$m['rel_name']] = $m['relation']->singular ? null : array();
}
// when result is array or singular empty, try to fetch the new relation from the row
$this->hydrate($row, !empty($m['models']) ? $m['models'] : array(), $rel_objs[$m['rel_name']], $m['model'], $m['columns'], $m['primary_key']);
}
// attach the retrieved relations to the object and update its original DB values
$obj->_relate($rel_objs);
$obj->_update_original_relations();
return $obj;
}
