/**
* Parses a has field into the meta
* @param zibo\library\orm\definition\field\HasField $field
* @param zibo\library\orm\ModelManager $modelManager Instance of the model manager
* @return null
*/
private function parseHasField(HasField $field, ModelManager $modelManager)
{
$name = $field->getName();
$modelName = $this->table->getName();
$relationModelName = $field->getRelationModelName();
$relationModel = $modelManager->getModel($relationModelName);
$relation = new RelationMeta();
$relation->setIsRelationWithSelf($relationModelName == $modelName);
$linkModelName = $field->getLinkModelName();
if ($field->isLocalized()) {
$localizedMeta = $this->getLocalizedModel()->getMeta();
$localizedField = $localizedMeta->getField($name);
$linkModelName = $localizedField->getLinkModelName();
$field->setLinkModelName($linkModelName);
$relation->setLinkModelName($linkModelName);
} elseif ($linkModelName) {
$relation->setLinkModelName($linkModelName);
$linkModel = $modelManager->getModel($linkModelName);
$linkModelTable = $linkModel->getMeta()->getModelTable();
if (!$relation->isRelationWithSelf()) {
$relation->setForeignKey($this->getForeignKey($linkModelTable, $relationModelName));
$relation->setForeignKeyToSelf($this->getForeignKey($linkModelTable, $modelName));
} else {
$relation->setForeignKey($this->getForeignKeys($linkModelTable, $modelName));
}
} else {
$relationModelTable = $relationModel->getMeta()->getModelTable();
$foreignKey = $field->getForeignKeyName();
$relation->setForeignKey($this->getForeignKey($relationModelTable, $modelName, $foreignKey));
}
$this->relations[$name] = $relation;
if ($field instanceof HasOneField) {
$this->hasOne[$name] = $field;
return;
}
if ($linkModelName) {
$relation->setIsHasManyAndBelongsToMany(true);
}
$this->hasMany[$name] = $field;
}
/**
* Deletes or clears, depending on the keepRecord argument, the values of the provided table
* which have a relation with the provided data
* @param zibo\library\orm\definition\ModelTable $modelTable Table definition of the model of the has many relation
* @param integer $id Primary key of the data
* @param boolean $keepRecord True to clear the link, false to delete the link
* @return null
*/
private function clearHasMany(ModelTable $modelTable, $id, $keepRecord)
{
$table = new TableExpression($modelTable->getName());
$relationFields = $modelTable->getRelationFields($this->getName());
$fields = $relationFields[ModelTable::BELONGS_TO];
foreach ($fields as $field) {
$fieldName = $field->getName();
if ($keepRecord) {
$statement = new UpdateStatement();
$statement->addValue(new FieldExpression($fieldName), null);
} else {
$statement = new DeleteStatement();
}
$condition = new SimpleCondition(new FieldExpression($fieldName), new SqlExpression($id), Condition::OPERATOR_EQUALS);
$statement->addTable($table);
$statement->addCondition($condition);
$this->executeStatement($statement);
}
$model = $this->getModel($modelTable->getName());
$model->clearCache();
}
/**
* Gets the foreign keys from the provided model table for the provided relation model. When no foreign keys are found and the relation
* model is a localized model, the unlocalized model will be queried for the foreign keys.
* @param zibo\library\orm\definition\ModelTable $modelTable Table definition of the model
* @param string $relationModelName Model name to get the foreign keys of
* @return array Array with ModelField objects
* @throws zibo\library\orm\exception\ModelException when there are no foreign keys found the provided model
*/
private function getForeignKeys(ModelTable $modelTable, $relationModelName)
{
if (!$relationModelName) {
throw new ModelException('Provided relation model name is empty');
}
$foreignKeys = $modelTable->getRelationFields($relationModelName, ModelTable::BELONGS_TO);
if (!$foreignKeys) {
if (preg_match('/' . LocalizedModel::MODEL_SUFFIX . '$/', $relationModelName)) {
$relationModelName = substr($relationModelName, 0, strlen(LocalizedModel::MODEL_SUFFIX) * -1);
$foreignKeys = $modelTable->getRelationFields($relationModelName, ModelTable::BELONGS_TO);
}
if (!$foreignKeys) {
throw new ModelException('No foreign key found for ' . $relationModelName . ' found in ' . $modelTable->getName());
}
}
return $foreignKeys;
}
