Ecto.Adapter.Schema.update
You're seeing just the callback
update
, go back to Ecto.Adapter.Schema module for more information.
Link to this callback
update(adapter_meta, schema_meta, fields, filters, returning, options)
View SourceSpecs
update( adapter_meta(), schema_meta(), fields(), filters(), returning(), options() ) :: {:ok, fields()} | {:invalid, constraints()} | {:error, :stale}
Updates a single struct with the given filters.
While filters
can be any record column, it is expected that
at least the primary key (or any other key that uniquely
identifies an existing record) be given as a filter. Therefore,
in case there is no record matching the given filters,
{:error, :stale}
is returned.