Ecto v3.0.0-rc.1 Ecto.Schema.Metadata View Source

Stores metadata of a struct.

State

The state of the schema is stored in the :state field and allows following values:

:built - the struct was constructed in memory and is not persisted to database yet;
:loaded - the struct was loaded from database and represents persisted data;
:deleted - the struct was deleted and no longer represents persisted data.

Source

The :source tracks the (table or collection) where the struct is or should be persisted to.

Prefix

Tracks the source prefix in the data storage.

Context

The :context field represents additional state some databases require for proper updates of data. It is not used by the built-in adapters of Ecto.Adapters.Postres and Ecto.Adapters.MySQL.

Schema

The :schema field refers the module name for the schema this metadata belongs to.

Link to this section Summary

Types

state()

t()

Link to this section Types

state()

state() :: :built | :loaded | :deleted

t()

t() :: %Ecto.Schema.Metadata{
  context: any(),
  prefix: Ecto.Schema.prefix(),
  schema: module(),
  source: Ecto.Schema.source(),
  state: state()
}