/**
* Returns all the nodes that have been attached to the specified
* parent node.
* @param RedBean_OODBBean $parent
* @return array $childObjects
*/
public function children(RedBean_OODBBean $parent)
{
$idfield = $this->writer->getIDField($parent->getMeta("type"));
try {
$ids = $this->writer->selectByCrit($idfield, $parent->getMeta("type"), $this->property, intval($parent->{$idfield}));
} catch (RedBean_Exception_SQL $e) {
return array();
}
return $this->oodb->batch($parent->getMeta("type"), $ids);
}
/**
*
* @param RedBean_OODBBean $parent
* @return array $childObjects
*/
public function children(RedBean_OODBBean $parent)
{
$idfield = $this->writer->getIDField($parent->getMeta("type"));
try {
$ids = $this->adapter->getCol("SELECT `" . $idfield . "` FROM\n\t\t\t`" . $parent->getMeta("type") . "`\n\t\t\tWHERE `" . $this->property . "` = " . intval($parent->{$idfield}) . "\n\t\t");
} catch (RedBean_Exception_SQL $e) {
return array();
}
return $this->oodb->batch($parent->getMeta("type"), $ids);
}
/**
* The opposite of related(). Returns all the beans that are not
* associated with the bean provided.
*
* @param RedBean_OODBBean $bean bean provided
* @param string $type type of bean you are searching for
* @param string $sql SQL for extra filtering
* @param array $values values to be inserted in SQL slots
*
* @return array $beans beans
*/
public static function unrelated(RedBean_OODBBean $bean, $type, $sql = null, $values = array())
{
$idfield = self::$writer->getIDField($type);
$keys = self::$associationManager->related($bean, $type);
$rows = self::$writer->selectRecord($type, array($idfield => $keys), array($sql, $values), false, true);
return self::$redbean->convertToBeans($type, $rows);
}
/**
* Given two beans this function returns TRUE if they are associated using a
* many-to-many association, FALSE otherwise.
*
* @throws RedBean_Exception_SQL
*
* @param RedBean_OODBBean $bean1 bean
* @param RedBean_OODBBean $bean2 bean
*
* @return bool $related whether they are associated N-M
*/
public function areRelated(RedBean_OODBBean $bean1, RedBean_OODBBean $bean2)
{
if (!$bean1->getID() || !$bean2->getID()) {
return false;
}
$table = $this->getTable(array($bean1->getMeta("type"), $bean2->getMeta("type")));
$idfield1 = $this->writer->getIDField($bean1->getMeta("type"));
$idfield2 = $this->writer->getIDField($bean2->getMeta("type"));
$type = $bean1->getMeta("type");
if ($type == $bean2->getMeta("type")) {
$type .= "2";
$cross = 1;
} else {
$cross = 0;
}
$property1 = $type . "_id";
$property2 = $bean2->getMeta("type") . "_id";
$value1 = (int) $bean1->{$idfield1};
$value2 = (int) $bean2->{$idfield2};
try {
$rows = $this->writer->selectRecord($table, array($property1 => array($value1), $property2 => array($value2)), null);
if ($cross) {
$rows2 = $this->writer->selectRecord($table, array($property2 => array($value1), $property1 => array($value2)), null);
$rows = array_merge($rows, $rows2);
}
} catch (RedBean_Exception_SQL $e) {
if (!$this->writer->sqlStateIn($e->getSQLState(), array(RedBean_QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN, RedBean_QueryWriter::C_SQLSTATE_NO_SUCH_TABLE))) {
throw $e;
}
return false;
}
return count($rows) > 0;
}
/**
* Creates a view with name $viewID based on $refType bean type
* and then left-joining the specified types in $types in the given
* order.
*
* @param string $viewID desired name of the view
* @param string $refType first bean type to be used as base
* @param array $types array with types to be left-joined in view
*
* @return boolean $success whether we created a new view (false if already exists)
*/
public function createView($viewID, $refType, $types)
{
if ($this->oodb->isFrozen()) {
return false;
}
$history = array();
$tables = array_flip($this->writer->getTables());
$refTable = $refType;
//$this->writer->safeTable($refType, true);
$currentTable = $refTable;
$history[$refType] = $refType;
foreach ($types as $t) {
if (!isset($history[$t])) {
$history[$t] = $t;
$connection = array($t, $currentTable);
sort($connection);
$connection = implode("_", $connection);
$connectionTable = $this->writer->safeTable($connection, true);
if (isset($tables[$connectionTable])) {
//this connection exists
$srcPoint = $this->writer->safeTable($connection) . "." . $this->writer->safeColumn($currentTable . "_id");
//i.e. partic_project.project_id
$dstPoint = $this->writer->safeTable($currentTable) . "." . $this->writer->safeColumn($this->writer->getIDField($currentTable));
//i.e. project.id
$joins[$connection] = array($srcPoint, $dstPoint);
//now join the type
$srcPoint = $this->writer->safeTable($connection) . "." . $this->writer->safeColumn($t . "_id");
$dstPoint = $this->writer->safeTable($t) . "." . $this->writer->safeColumn($this->writer->getIDField($t));
$joins[$t] = array($srcPoint, $dstPoint);
} else {
//this connection does not exist
$srcPoint = $this->writer->safeTable($t) . "." . $this->writer->safeColumn($currentTable . "_id");
$dstPoint = $this->writer->safeTable($currentTable) . "." . $this->writer->safeColumn($this->writer->getIDField($currentTable));
$joins[$t] = array($srcPoint, $dstPoint);
}
}
//now set the new refTable
$currentTable = $t;
}
try {
$rs = (bool) $this->writer->createView($refType, $joins, $viewID);
} catch (Exception $e) {
throw new RedBean_Exception_SQL('Could not create view, types does not seem related (yet)..');
}
return $rs;
}
/**
*
* @param RedBean_OODBBean $parent
* @return array $childObjects
*/
public function children(RedBean_OODBBean $parent)
{
$idfield = $this->writer->getIDField($parent->getMeta("type"));
try {
/*
$ids = $this->adapter->getCol("SELECT `".$idfield."` FROM
`".$parent->getMeta("type")."`
WHERE `".$this->property."` = ".intval( $parent->$idfield )."
");
*/
/*
$ids = $this->adapter->getCol($this->writer->buildSimpleQuery(
"select",array($idfield),$parent->getMeta("type"),
array("name"=>$this->property,
"value"=>intval($parent->$idfield),
"operator"=>"=","structure"=>"")
));
*/
$ids = $this->writer->selectByCrit($idfield, $parent->getMeta("type"), $this->property, intval($parent->{$idfield}));
} catch (RedBean_Exception_SQL $e) {
return array();
}
return $this->oodb->batch($parent->getMeta("type"), $ids);
}
/**
* Loads a batch of beans all at once.
* This function first inspects the cache; if every element in the batch
* is available in the cache, the function will return the collected beans
* from the cache. If one or more beans cannot be found, the function will
* ask oodb for the beans and update the cache.
* @param string $type
* @param integer $ids
* @return array $beans
*/
public function batch($type, $ids)
{
$idfield = $this->writer->getIDField($type);
$collect = array();
foreach ($ids as $id) {
$bean = $this->fetchFromCacheByTypeID($type, $id);
if ($bean) {
$collect[$id] = $bean;
}
}
if (count($collect) == count($ids)) {
return $collect;
} else {
$beans = $this->oodb->batch($type, $ids);
foreach ($beans as $bean) {
$this->putInCache($bean);
}
return $beans;
}
}
/**
* Removes all relations for a bean
* @param RedBean_OODBBean $bean
* @param string $type
*/
public function clearRelations(RedBean_OODBBean $bean, $type)
{
$this->oodb->store($bean);
$table = $this->getTable(array($bean->getMeta("type"), $type));
$idfield = $this->writer->getIDField($bean->getMeta("type"));
if ($type == $bean->getMeta("type")) {
$property2 = $type . "2_id";
$cross = 1;
} else {
$cross = 0;
}
$property = $bean->getMeta("type") . "_id";
try {
$this->writer->deleteByCrit($table, array($property => $bean->{$idfield}));
if ($cross) {
$this->writer->deleteByCrit($table, array($property2 => $bean->{$idfield}));
}
} catch (RedBean_Exception_SQL $e) {
if ($e->getSQLState() != "42S02" && $e->getSQLState() != "42S22") {
throw $e;
}
}
}
/**
* Removes all relations for a bean
* @param RedBean_OODBBean $bean
* @param <type> $type
*/
public function clearRelations(RedBean_OODBBean $bean, $type)
{
$this->oodb->store($bean);
$table = $this->getTable(array($bean->getMeta("type"), $type));
$idfield = $this->writer->getIDField($bean->getMeta("type"));
if ($type == $bean->getMeta("type")) {
$property2 = $type . "2_id";
$cross = 1;
} else {
$cross = 0;
}
$property = $bean->getMeta("type") . "_id";
$sql = "DELETE FROM `{$table}`\n\t\tWHERE " . $this->adapter->escape($property) . " = " . $this->adapter->escape($bean->{$idfield});
if ($cross) {
$sql .= " OR " . $this->adapter->escape($property2) . " = " . $this->adapter->escape($bean->{$idfield});
}
try {
$this->adapter->exec($sql);
} catch (RedBean_Exception_SQL $e) {
if ($e->getSQLState() != "42S02" && $e->getSQLState() != "42S22") {
throw $e;
}
}
}
/**
* The opposite of related(). Returns all the beans that are not
* associated with the bean provided.
*
* @param RedBean_OODBBean $bean bean provided
* @param string $type type of bean you are searching for
* @param string $sql SQL for extra filtering
* @param array $values values to be inserted in SQL slots
*
* @return array $beans beans
*/
public static function unrelated(RedBean_OODBBean $bean, $type, $sql=null, $values=array()) {
$keys = self::$associationManager->related( $bean, $type );
$idfield = self::$writer->getIDField( $type );
$sqlSnippet = self::$writer->getSQLSnippetFilter($idfield, $keys, $sql, true);
return self::find( $type, $sqlSnippet, $values );
}
