/**
* Normalizes "through" definition.
*
* @throws PIECE_ORM_ERROR_INVALID_CONFIGURATION
*/
function _normalizeThrough()
{
if (!array_key_exists('through', $this->_relationship)) {
$this->_relationship['through'] = array();
}
if (!array_key_exists('table', $this->_relationship['through'])) {
$throughTableName1 = $this->_metadata->getTableName(true) . "_{$this->_relationship['table']}";
$throughTableName2 = "{$this->_relationship['table']}_" . $this->_metadata->getTableName(true);
foreach (array($throughTableName1, $throughTableName2) as $throughTableName) {
Piece_ORM_Error::disableCallback();
$throughMetadata =& Piece_ORM_Metadata_Factory::factory($throughTableName);
Piece_ORM_Error::enableCallback();
if (Piece_ORM_Error::hasErrors()) {
$error = Piece_ORM_Error::pop();
if ($error['code'] != PIECE_ORM_ERROR_NOT_FOUND) {
Piece_ORM_Error::push($error['code'], $error['message'], 'exception', array(), $error);
return;
}
continue;
}
$this->_relationship['through']['table'] = $throughTableName;
break;
}
if (!$throughMetadata) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, "One of [ {$throughTableName1} ] or [ {$throughTableName2} ] must exists in the database, if the element [ table ] in the element [ through ] omit.");
return;
}
}
$throughMetadata =& Piece_ORM_Metadata_Factory::factory($this->_relationship['through']['table']);
if (Piece_ORM_Error::hasErrors()) {
return;
}
if (!array_key_exists('column', $this->_relationship['through'])) {
if ($primaryKey = $this->_metadata->getPrimaryKey()) {
$this->_relationship['through']['column'] = $this->_metadata->getTableName(true) . "_{$primaryKey}";
} else {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, 'A single primary key field is required, if the element [ column ] in the element [ through ] omit.');
return;
}
}
if (!$throughMetadata->hasField($this->_relationship['through']['column'])) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, "The field [ {$this->_relationship['through']['column']} ] not found in the table [ " . $throughMetadata->getTableName(true) . ' ].');
return;
}
if (!array_key_exists('referencedColumn', $this->_relationship['through'])) {
if ($primaryKey = $this->_metadata->getPrimaryKey()) {
$this->_relationship['through']['referencedColumn'] = $primaryKey;
} else {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, 'A single primary key field is required, if the element [ referencedColumn ] in the element [ through ] omit.');
return;
}
}
if (!$this->_metadata->hasField($this->_relationship['through']['referencedColumn'])) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, "The field [ {$this->_relationship['through']['referencedColumn']} ] not found in the table [ " . $this->_metadata->getTableName(true) . ' ].');
return;
}
if (!array_key_exists('inverseColumn', $this->_relationship['through'])) {
if ($primaryKey = $this->_relationshipMetadata->getPrimaryKey()) {
$this->_relationship['through']['inverseColumn'] = $this->_relationshipMetadata->getTableName(true) . "_{$primaryKey}";
} else {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, 'A single primary key field is required, if the element [ column ] in the element [ through ] omit.');
return;
}
}
if (!$throughMetadata->hasField($this->_relationship['through']['inverseColumn'])) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_INVALID_CONFIGURATION, "The field [ {$this->_relationship['through']['inverseColumn']} ] not found in the table [ " . $throughMetadata->getTableName(true) . ' ].');
return;
}
}
