postgresql-orm-0.4.0: An ORM (Object Relational Mapping) and migrations DSL for PostgreSQL.

Safe Haskell	None
Language	Haskell2010

Database.PostgreSQL.ORM.Validations

Documentation

newtype ValidationError Source

Constructors

ValidationError
Fields validationErrors :: HashMap Text [Text]

Instances

Show ValidationError
ToJSON ValidationError
FromJSON ValidationError
Exception ValidationError
Monoid ValidationError
Typeable * ValidationError

type ValidationFunc a = a -> ValidationError Source

validate Source

Arguments

:: (a -> Bool)
-> Text	Column name
-> Text	Error description
-> ValidationFunc a

validateNotEmpty :: (a -> Text) -> Text -> Text -> ValidationFunc a Source