Viewing file:  EmbedsMany.php (8.5 KB) -rw-rw-r--
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<?php namespace Jenssegers\Mongodb\Relations;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Pagination\LengthAwarePaginator;
use Illuminate\Pagination\Paginator;
use MongoId;
class EmbedsMany extends EmbedsOneOrMany
{
/**
* Get the results of the relationship.
*
* @return \Illuminate\Database\Eloquent\Collection
*/
public function getResults()
{
return $this->toCollection($this->getEmbedded());
}
/**
* Save a new model and attach it to the parent model.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Model
*/
public function performInsert(Model $model)
{
// Generate a new key if needed.
if ($model->getKeyName() == '_id' and ! $model->getKey()) {
$model->setAttribute('_id', new MongoId);
}
// For deeply nested documents, let the parent handle the changes.
if ($this->isNested()) {
$this->associate($model);
return $this->parent->save();
}
// Push the new model to the database.
$result = $this->getBaseQuery()->push($this->localKey, $model->getAttributes(), true);
// Attach the model to its parent.
if ($result) {
$this->associate($model);
}
return $result ? $model : false;
}
/**
* Save an existing model and attach it to the parent model.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return Model|bool
*/
public function performUpdate(Model $model)
{
// For deeply nested documents, let the parent handle the changes.
if ($this->isNested()) {
$this->associate($model);
return $this->parent->save();
}
// Get the correct foreign key value.
$foreignKey = $this->getForeignKeyValue($model);
// Use array dot notation for better update behavior.
$values = array_dot($model->getDirty(), $this->localKey . '.$.');
// Update document in database.
$result = $this->getBaseQuery()->where($this->localKey . '.' . $model->getKeyName(), $foreignKey)
->update($values);
// Attach the model to its parent.
if ($result) {
$this->associate($model);
}
return $result ? $model : false;
}
/**
* Delete an existing model and detach it from the parent model.
*
* @param Model $model
* @return int
*/
public function performDelete(Model $model)
{
// For deeply nested documents, let the parent handle the changes.
if ($this->isNested()) {
$this->dissociate($model);
return $this->parent->save();
}
// Get the correct foreign key value.
$foreignKey = $this->getForeignKeyValue($model);
$result = $this->getBaseQuery()->pull($this->localKey, [$model->getKeyName() => $foreignKey]);
if ($result) {
$this->dissociate($model);
}
return $result;
}
/**
* Associate the model instance to the given parent, without saving it to the database.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Model
*/
public function associate(Model $model)
{
if (! $this->contains($model)) {
return $this->associateNew($model);
} else {
return $this->associateExisting($model);
}
}
/**
* Dissociate the model instance from the given parent, without saving it to the database.
*
* @param mixed $ids
* @return int
*/
public function dissociate($ids = [])
{
$ids = $this->getIdsArrayFrom($ids);
$records = $this->getEmbedded();
$primaryKey = $this->related->getKeyName();
// Remove the document from the parent model.
foreach ($records as $i => $record) {
if (in_array($record[$primaryKey], $ids)) {
unset($records[$i]);
}
}
$this->setEmbedded($records);
// We return the total number of deletes for the operation. The developers
// can then check this number as a boolean type value or get this total count
// of records deleted for logging, etc.
return count($ids);
}
/**
* Destroy the embedded models for the given IDs.
*
* @param mixed $ids
* @return int
*/
public function destroy($ids = [])
{
$count = 0;
$ids = $this->getIdsArrayFrom($ids);
// Get all models matching the given ids.
$models = $this->getResults()->only($ids);
// Pull the documents from the database.
foreach ($models as $model) {
if ($model->delete()) {
$count++;
}
}
return $count;
}
/**
* Delete all embedded models.
*
* @return int
*/
public function delete()
{
// Overwrite the local key with an empty array.
$result = $this->query->update([$this->localKey => []]);
if ($result) {
$this->setEmbedded([]);
}
return $result;
}
/**
* Destroy alias.
*
* @param mixed $ids
* @return int
*/
public function detach($ids = [])
{
return $this->destroy($ids);
}
/**
* Save alias.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Model
*/
public function attach(Model $model)
{
return $this->save($model);
}
/**
* Associate a new model instance to the given parent, without saving it to the database.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Model
*/
protected function associateNew($model)
{
// Create a new key if needed.
if (! $model->getAttribute('_id')) {
$model->setAttribute('_id', new MongoId);
}
$records = $this->getEmbedded();
// Add the new model to the embedded documents.
$records[] = $model->getAttributes();
return $this->setEmbedded($records);
}
/**
* Associate an existing model instance to the given parent, without saving it to the database.
*
* @param \Illuminate\Database\Eloquent\Model $model
* @return \Illuminate\Database\Eloquent\Model
*/
protected function associateExisting($model)
{
// Get existing embedded documents.
$records = $this->getEmbedded();
$primaryKey = $this->related->getKeyName();
$key = $model->getKey();
// Replace the document in the parent model.
foreach ($records as &$record) {
if ($record[$primaryKey] == $key) {
$record = $model->getAttributes();
break;
}
}
return $this->setEmbedded($records);
}
/**
* Get a paginator for the "select" statement.
*
* @param int $perPage
* @return \Illuminate\Pagination\Paginator
*/
public function paginate($perPage = null)
{
$page = Paginator::resolveCurrentPage();
$perPage = $perPage ?: $this->related->getPerPage();
$results = $this->getEmbedded();
$total = count($results);
$start = ($page - 1) * $perPage;
$sliced = array_slice($results, $start, $perPage);
return new LengthAwarePaginator($sliced, $total, $perPage, $page, [
'path' => Paginator::resolveCurrentPath(),
]);
}
/**
* Get the embedded records array.
*
* @return array
*/
protected function getEmbedded()
{
return parent::getEmbedded() ?: [];
}
/**
* Set the embedded records array.
*
* @param array $models
*/
protected function setEmbedded($models)
{
if (! is_array($models)) {
$models = [$models];
}
return parent::setEmbedded(array_values($models));
}
/**
* Handle dynamic method calls to the relationship.
*
* @param string $method
* @param array $parameters
* @return mixed
*/
public function __call($method, $parameters)
{
// Collection methods
if (method_exists('Illuminate\Database\Eloquent\Collection', $method)) {
return call_user_func_array([$this->getResults(), $method], $parameters);
}
return parent::__call($method, $parameters);
}
}
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