/**
* Adds a belongs to field to the statement
* @param zibo\library\orm\definition\field\BelongsToField $field
* @return null;
*/
private function addBelongsTo(BelongsToField $field)
{
$name = $field->getName();
$relationModel = $this->meta->getRelationModel($name);
$hasRelations = $relationModel->getMeta()->hasRelations();
$useJoin = false;
if ($this->recursiveDepth === 1 || $this->recursiveDepth !== 0 && !$hasRelations) {
$useJoin = true;
}
if (!$useJoin && ($this->recursiveDepth === null || $this->recursiveDepth > 1)) {
$this->recursiveBelongsToFields[$name] = $field;
}
if (!$useJoin) {
if ($field->isLocalized()) {
$this->addField($this->tables[self::ALIAS_SELF_LOCALIZED], $name);
$this->localize = true;
} else {
$this->addField($this->tables[self::ALIAS_SELF], $name);
}
return;
}
$this->addFieldJoin($field);
$relationTable = $this->meta->getRelationTable($name);
$relationLocalizedTable = $this->meta->getRelationLocalizedTable($name);
$relationFields = $this->meta->getRelationFields($name);
foreach ($relationFields as $relationField) {
if ($relationField instanceof HasField) {
continue;
}
if ($relationField->isLocalized()) {
$this->addField($relationLocalizedTable, $relationField->getName(), $name);
} else {
$this->addField($relationTable, $relationField->getName(), $name);
}
}
}
/**
* 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);
}
}