Ecto.Repo.get_by
You're seeing just the callback
get_by
, go back to Ecto.Repo module for more information.
Specs
get_by( queryable :: Ecto.Queryable.t(), clauses :: Keyword.t() | map(), opts :: Keyword.t() ) :: Ecto.Schema.t() | nil
Fetches a single result from the query.
Returns nil
if no result was found. Raises if more than one entry.
Options
:prefix
- The prefix to run the query on (such as the schema path in Postgres or the database in MySQL). This will be applied to allfrom
andjoin
s in the query that did not have a prefix previously given either via the:prefix
option onjoin
/from
or via@schema_prefix
in the schema. For more information see the "Query Prefix" section of theEcto.Query
documentation.
See the "Shared options" section at the module documentation for more options.
Example
MyRepo.get_by(Post, title: "My post")
MyRepo.get_by(Post, [title: "My post"], prefix: "public")