Ecto v2.2.7 Ecto.DataType protocol View Source
Casts and dumps a given struct into an Ecto type.
While Ecto.Type
allows developers to cast/load/dump
any value from the storage into the struct based on the
schema, Ecto.DataType
allows developers to convert
existing data types into primitive Ecto types without
the schema information.
For example, Elixir’s native Date
struct implements
the Ecto.DataType protocol so it is properly converted
to a tuple when directly passed to adapters:
defimpl Ecto.DataType, for: Date do
def dump(%Date{day: day, month: month, year: year}) do
{:ok, {year, month, day}}
end
end
Link to this section Summary
Functions
Invoked when the data structure has not been dumped along the way and must fallback to its database representation
Link to this section Types
Link to this section Functions
Invoked when the data structure has not been dumped along the way and must fallback to its database representation.