/**
* Tests if this object has a relationship to a different model.
*
* @param object related ORM model
* @return boolean
*/
public function has(ORM $model)
{
// Get the plural object name as the related name
$related = $model->object_plural;
if (($join_table = array_search($related, $this->has_and_belongs_to_many)) === FALSE) {
return FALSE;
}
if (is_int($join_table)) {
// No "through" table, load the default JOIN table
$join_table = $model->join_table($this->table_name);
}
if (!isset($this->object_relations[$related])) {
// Load the object relationships
$this->changed_relations[$related] = $this->object_relations[$related] = $this->load_relations($join_table, $model);
}
if ($model->loaded) {
// Check if a specific object exists
return in_array($model->primary_key_value, $this->changed_relations[$related]);
} else {
return !empty($this->changed_relations[$related]);
}
}
/**
* Tests if this object has a relationship to a different model.
*
* @param object related ORM model
* @param boolean check for any relations to given model
* @return boolean
*/
public function has(ORM $model, $any = FALSE)
{
// Determine plural or singular relation name
$related = $model->table_names_plural === TRUE ? $model->object_plural : $model->object_name;
if (($join_table = array_search($related, $this->has_and_belongs_to_many)) === FALSE) {
return FALSE;
}
if (is_int($join_table)) {
// No "through" table, load the default JOIN table
$join_table = $model->join_table($this->table_name);
}
if (!isset($this->object_relations[$related])) {
// Load the object relationships
$this->changed_relations[$related] = $this->object_relations[$related] = $this->load_relations($join_table, $model);
}
if (!$model->empty_primary_key()) {
// Check if a specific object exists
return in_array($model->primary_key_value, $this->changed_relations[$related]);
} elseif ($any) {
// Check if any relations to given model exist
return !empty($this->changed_relations[$related]);
} else {
return FALSE;
}
}
/**
* Tests if this object has a relationship to a different model.
*
* @param object related ORM model
* @return boolean
*/
public function has(ORM $model)
{
if (!$this->loaded) {
return FALSE;
}
if (($join_table = array_search(inflector::plural($model->object_name), $this->has_and_belongs_to_many)) === FALSE) {
return FALSE;
}
if (is_int($join_table)) {
// No "through" table, load the default JOIN table
$join_table = $model->join_table($this->table_name);
}
if ($model->loaded) {
// Select only objects of a specific id
$this->db->where($model->foreign_key(NULL, $join_table), $model->primary_key_value);
}
// Return the number of rows that exist
return $this->db->where($this->foreign_key(NULL, $join_table), $this->object[$this->primary_key])->count_records($join_table);
}