What is ODM in Phalcon?
ODM or Object-Document-Mapping is the mapping for NoSQL databases. Phalcon can map documents from NoSQL databases through ODM using a unique ObjectID for each object to be mapped. Phalcon’s ODM offers CRUD functionality, events, validation, and other services. The advantage of ODM is that it is a persistence mechanism where an application model and data source have no dependencies on each other.