Safe Haskell	Safe-Inferred
Language	Haskell2010

Database.PostgreSQL.Query.Entity.Class

Synopsis

class Entity a where
- data EntityId a :: Type
- tableName :: Proxy a -> FN
- fieldNames :: Proxy a -> [FN]
type Ent a = (EntityId a, a)

Documentation

class Entity a where Source #

Auxiliary typeclass for data types which can map to rows of some table. This typeclass is used inside functions like pgSelectEntities to generate queries.

Associated Types

data EntityId a :: Type Source #

Id type for this entity

Methods

tableName :: Proxy a -> FN Source #

Table name of this entity

fieldNames :: Proxy a -> [FN] Source #

Field names without id and created. The order of field names must match with order of fields in ToRow and FromRow instances of this type.

type Ent a = (EntityId a, a) Source #

Entity with it's id