public function setInformation(array $info)
{
parent::setInformation($info);
$this->cm->attribute = isset($info['key_from']) ? $info['key_from'] : 'id';
$this->cm->column = $this->cm->t->columnRealName($this->cm->attribute);
$this->lm->attribute = isset($info['key_to']) ? $info['key_to'] : call_user_func(Cfg::get('buildForeignKey'), $this->cm->t->modelBaseName);
$this->lm->column = $this->lm->t->columnRealName($this->lm->attribute);
}
public function setInformation(array $info)
{
parent::setInformation($info);
$this->cm->attribute = isset($info['key_from']) ? $info['key_from'] : 'id';
$this->cm->column = (array) $this->cm->t->columnRealName($this->cm->attribute);
$this->lm->attribute = isset($info['key_to']) ? $info['key_to'] : 'id';
$this->lm->column = (array) $this->lm->t->columnRealName($this->lm->attribute);
$this->jm = new \StdClass();
if (isset($info['join_model'])) {
$this->jm->class = $s = $info['join_model'] . Cfg::get('modelClassSuffix');
$this->jm->t = $s::table();
$this->jm->table = $this->jm->t->name;
$this->jm->from = (array) $this->jm->t->columnRealName(isset($info['join_from']) ? $info['join_from'] : call_user_func(Cfg::get('buildForeignKey'), $this->cm->t->modelBaseName));
$this->jm->to = (array) $this->jm->t->columnRealName(isset($info['join_to']) ? $info['join_to'] : call_user_func(Cfg::get('buildForeignKey'), $this->lm->t->modelBaseName));
} else {
$this->jm->class = null;
$this->jm->table = isset($info['join_table']) ? $info['join_table'] : $this->cm->table . '_' . $this->lm->table;
$this->jm->from = (array) (isset($info['join_from']) ? $info['join_from'] : decamelize($this->cm->t->modelBaseName) . '_id');
$this->jm->to = (array) (isset($info['join_to']) ? $info['join_to'] : decamelize($this->lm->t->modelBaseName) . '_id');
}
}
/**
* Add a condition over a relation.
*
* This is not the same as perform a join. An involved table will be used
* and conditions given by the relation object will be added. But no JOIN
* will be performed.
*
* This method is particularly useful to connect tables between subquery and
* main query.
*
* Important:
* ----------
* Current Model (CM) of relation is the table to involve ; Linked Model
* (LM) is the current builder's root model.
*
* @param Relation $rel
* @param string $lmAlias An alias for the linked model.
*/
public function whereRelation(Relation $rel, $lmAlias = null)
{
if ($lmAlias === null) {
$lmAlias = self::DEFAULT_ROOT_ALIAS;
}
$lmTable = $rel->cm->t;
$this->setInvolvedTable($lmAlias, $lmTable);
// Make the join between both tables:
$sep = Cfg::get('queryOptionRelationSeparator');
if ($rel instanceof ManyMany) {
$mdTable = $rel->getMiddleTableName();
$mdAlias = $rel->getMiddleTableAlias();
$mdAlias = $lmAlias === self::DEFAULT_ROOT_ALIAS ? $mdAlias : $lmAlias . '.' . $mdAlias;
// Join middle table.
$jc = new JoinClause($mdTable, $mdAlias);
$jc->on($this->getRootAlias(), $rel->lm->column, $mdAlias, $rel->jm->to);
$this->setJoinClause($mdAlias, $jc);
// Where on relation.
$lmCols = $rel->cm->column;
$mdCols = $rel->jm->from;
$this->whereCol($mdAlias, $mdCols, '=', $lmAlias, $lmCols);
} else {
// $lmAttr: attribute of the model to link. (The relation CM attr)
// $cmAttr: current builder root model attribute. (The relation LM attr)
foreach ($rel->getJoinAttributes() as $lmAttr => $cmAttr) {
$this->whereAttr($cmAttr, $lmAlias . $sep . $lmAttr);
}
}
return $this;
}
/**
* Associate preloaded linked models to correct current models.
*
*/
protected function _associateLinkedModels(array $cmInstances, array $lmInstances, Relation $relation)
{
$cmAttr = $relation->getCmAttributes();
$lmAttr = $relation->getLmAttributes();
$rName = $relation->name;
foreach ($cmInstances as $cm) {
foreach ($lmInstances as $lm) {
if ($cm->get($cmAttr) === $lm->get($lmAttr)) {
if ($relation->isToMany()) {
$tmp = $cm->{$rName};
$tmp[] = $lm;
$cm->{$rName} = $tmp;
} else {
$cm->{$rName} = $lm;
break;
}
}
}
}
}
/**
* Get or set the relation identified by its name.
*
* If second parameter is null, it works like a getter.
* It works like a setter if second parameter is not null.
*
* @param $name The name of the relation.
* @param $relation The relation to set instead
*
* @return object A Relation object.
* @throw SimpleAR\Exception if used as getter and $relationName is unknown.
*/
public static function relation($name, Relation $relation = null)
{
if ($relation === null) {
if (!isset(static::$_relations[$name])) {
throw new Exception('Relation "' . $name . '" does not exist for class "' . get_called_class() . '".');
}
// Avoid array accesses.
$val =& static::$_relations[$name];
// If relation is not yet initlialized, do it.
if (!$val instanceof Relation) {
$val = Relation::forge($name, $val, get_called_class());
}
// Return the Relation object.
return $val;
} else {
static::$_relations[$name] = $relation;
}
}
