findAndModify() public method Generates 'find and modify'

$database public property MongoDB database instance.

selectCollection() protected method Selects collection

all() public method Executes the query and returns all

distinct() public method Returns a list of distinct values

$fileCollection public read-only property Mongo GridFS

$fullName public read-only property Full name of this

$mongoDateAttribute public property The name of the attribute

$db public property The DB connection object or the application

loadMessagesFromDb() protected method Loads the messages