/**
* Parses a belongs to field in the meta
* @param zibo\library\orm\definition\field\BelongsToField $field
* @return null
* @param zibo\library\orm\ModelManager $modelManager Instance of the model manager
*/
private function parseBelongsToField(BelongsToField $field, ModelManager $modelManager)
{
$name = $field->getName();
$modelName = $this->getName();
$relationModelName = $field->getRelationModelName();
try {
$relationModel = $modelManager->getModel($relationModelName);
} catch (OrmException $exception) {
throw new ModelException('No relation model found for field ' . $name . ' in ' . $modelName);
}
$relation = new RelationMeta();
$relation->setIsRelationWithSelf($relationModelName == $modelName);
$this->relations[$name] = $relation;
$this->belongsTo[$name] = $field;
$relationFields = $relationModel->getMeta()->getRelation($modelName);
if (!$relationFields[ModelTable::BELONGS_TO] && !$relationFields[ModelTable::HAS_MANY] && !$relationFields[ModelTable::HAS_ONE]) {
return;
}
if ($relationFields[ModelTable::HAS_MANY]) {
$relationType = ModelTable::HAS_MANY;
} else {
if ($relationFields[ModelTable::HAS_ONE]) {
$relationType = ModelTable::HAS_ONE;
} else {
return;
}
}
$relationField = array_shift($relationFields[$relationType]);
if ($relationField->isLocalized()) {
$linkModelName = $field->getLinkModelName();
if (empty($linkModelName)) {
throw new ModelException('No link model found for field ' . $name . ' in ' . $modelName);
}
$relation->setLinkModelName($linkModelName);
}
}
