@param string $id

@return bool
777860
public function get(string $id)
    {
        return isset($this->columns[$id]) ? $this->columns[$id] : false;
    }
1165740
public function delete($id)
    {
        $model = $this->model->where('id', $id)->first();
        if (!$model) {
            return false;
        }
        return $model->delete();
    }
121701
public function deleteRow (int $id) : bool
	{
		$this->id = $id;
		return $this->delete() ? TRUE : FALSE;
	}
251706
public function has($id)
    {
        $id = $this->resolveId($id);

        return isset($this->items[$id]);
    }
204955
public function findById($id) {
    $dataConnection = $this->app->getDataConnection($this->connection);
    $result = $dataConnection->findOneByField($this->idColumn, $dataConnection->convertToNativeId($id),
      $this->table, $this->readFields);
    if ($result == NULL) {
      return FALSE;
    }
    $this->load($result);
    return TRUE;
  }
719447
public function hasComponent($id)
    {
        if (!is_string($id)) {
            $id = array_shift($id);
        }
        return $this->getLocator()->has($id);
    }
271381
public function contains( $id ) {

		if ( isset ( $this->inMemoryCache[ $id ] ) || array_key_exists( $id, $this->inMemoryCache ) ) {
			return true;
		}

		$this->inMemoryCache[ $id ] = $this->cache->get( $id );

		return !$this->inMemoryCache[ $id ] ? false : true;
	}
869307
public function IdExists($id)
    {
        $property = $this->getUserIdProperty();
        $user = User::where($property, "=", $id)->count();
        return $user === 0 ? false : true;
    }
1015361
public function get($id)
    {
        if (isset($this->objects[$id])) {
            return $this->objects[$id];
        } else {
            return false;
        }
    }
732870
public function delete($id)
    {
        $supported = $this->isSupported('delete');

        return (true === $supported) ? $this->makeRequest($this->endpoint.'/'.$id.'/delete', array(), 'DELETE') : $supported;
    }
661901
public function delete($id)
	{
		try {
			$this->getIndex()->deleteObject($id);
		} catch (\Exception $e) {
			return false;
		}
		
		return true;
	}
1256191
public function hasDirectory(string $id): bool
    {
        if (isset($this->directories[$id])) {
            return true;
        }

        $path = $this->getDirectoryPath($id);

        if ($this->filesystem->has($path)) {
            $info = $this->filesystem->getMetadata($path);

            return $info['type'] === 'dir';
        }

        return false;
    }
33499
public function remove(string $id){
    if ( \bbn\str::is_uid($id) ){
      if ( $id_menu = $this->get_id_menu($id) ){
        if ( $this->pref->delete_bit($id) ){
          $this->delete_cache($id_menu);
          return true;
        }
      }
      else if ( $this->pref->delete($id) ){
        $this->options->delete_cache($this->from_path('menus'));
        return true;
      }
    }
    return false;
  }
721532
public function has($id)
    {
        $id = strtolower($id);

        return isset($this->definitions[$id]) || isset($this->aliasDefinitions[$id]) || parent::has($id);
    }
1034518
public function hasDocument(string $id): bool
    {
        if (isset($this->documents[$id])) {
            return true;
        }

        $path = $this->getDocumentPath($id);

        if ($this->filesystem->has($path)) {
            $info = $this->filesystem->getMetadata($path);

            return $info['type'] === 'file';
        }

        return false;
    }
156422
public function has($id)
    {
        if (is_string($id)) {
            return $this->getResolver()->hasService(
                $this->idWithoutScope($id)
            );
        }
        return false;
    }
1358537
public function has($id)
    {
        $res = isset($this->_classes[$id]);

        if ($res == false && isset($this->_lazy_classes[$id])) {
            if (is_callable($this->_lazy_classes[$id])) {
                $this->_classes[$id] = $this->_lazy_classes[$id]($this);
            } else {
                $this->_classes[$id] = $this->_lazy_classes[$id];
            }

            $res = true;
        }

        if ($res == false && $this->isSystemClass($id)) {
            $res = $this->_loadSystemClass($id);
        }

        return $res;
    }