{-# OPTIONS_GHC -fno-warn-orphans #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE TypeSynonymInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
module Database.Relational.Monad.Aggregate (
QueryAggregate,
AggregatedQuery,
toSQL,
toSubQuery,
Window, over
) where
import Data.Functor.Identity (Identity (runIdentity))
import Data.Monoid ((<>))
import Language.SQL.Keyword (Keyword(..))
import qualified Language.SQL.Keyword as SQL
import Database.Relational.Internal.ContextType (Flat, Aggregated, OverWindow)
import Database.Relational.SqlSyntax
(Duplication, Record, SubQuery, Predicate, JoinProduct,
OrderingTerm, composeOrderBy, aggregatedSubQuery,
AggregateColumnRef, AggregateElem, composePartitionBy, )
import qualified Database.Relational.SqlSyntax as Syntax
import qualified Database.Relational.Record as Record
import Database.Relational.Projectable (PlaceHolders, SqlContext)
import Database.Relational.Monad.Class (MonadRestrict(..))
import Database.Relational.Monad.Trans.Restricting
(Restrictings, restrictings, extractRestrict)
import Database.Relational.Monad.Trans.Aggregating
(extractAggregateTerms, AggregatingSetT, PartitioningSet)
import Database.Relational.Monad.Trans.Ordering
(Orderings, extractOrderingTerms)
import Database.Relational.Monad.BaseType (ConfigureQuery, askConfig)
import Database.Relational.Monad.Type (QueryCore, extractCore, OrderedQuery)
type QueryAggregate = Orderings Aggregated (Restrictings Aggregated (AggregatingSetT QueryCore))
type AggregatedQuery p r = OrderedQuery Aggregated (Restrictings Aggregated (AggregatingSetT QueryCore)) p r
type Window c = Orderings c (PartitioningSet c)
instance MonadRestrict Flat q => MonadRestrict Flat (Restrictings Aggregated q) where
restrict :: Predicate Flat -> Restrictings Aggregated q ()
restrict = q () -> Restrictings Aggregated q ()
forall (m :: * -> *) a c. Monad m => m a -> Restrictings c m a
restrictings (q () -> Restrictings Aggregated q ())
-> (Predicate Flat -> q ())
-> Predicate Flat
-> Restrictings Aggregated q ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Predicate Flat -> q ()
forall c (m :: * -> *). MonadRestrict c m => Predicate c -> m ()
restrict
extract :: AggregatedQuery p r
-> ConfigureQuery (((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct), Duplication)
= QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem])
-> ConfigureQuery
(((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct),
Duplication)
forall a.
QueryCore a
-> ConfigureQuery
(((a, [Predicate Flat]), JoinProduct), Duplication)
extractCore (QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem])
-> ConfigureQuery
(((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct),
Duplication))
-> (AggregatedQuery p r
-> QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]))
-> AggregatedQuery p r
-> ConfigureQuery
(((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct),
Duplication)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated])
-> QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem])
forall (m :: * -> *) ac at a.
(Monad m, Functor m) =>
Aggregatings ac at m a -> m (a, [at])
extractAggregateTerms (Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated])
-> QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]))
-> (AggregatedQuery p r
-> Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]))
-> AggregatedQuery p r
-> QueryCore
((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem])
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Restrictings
Aggregated
(Aggregatings
Set AggregateElem (Restrictings Flat (QueryJoin ConfigureQuery)))
((PlaceHolders p, Record Aggregated r), [OrderingTerm])
-> Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated])
forall (m :: * -> *) c a.
(Monad m, Functor m) =>
Restrictings c m a -> m (a, [Predicate c])
extractRestrict (Restrictings
Aggregated
(Aggregatings
Set AggregateElem (Restrictings Flat (QueryJoin ConfigureQuery)))
((PlaceHolders p, Record Aggregated r), [OrderingTerm])
-> Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]))
-> (AggregatedQuery p r
-> Restrictings
Aggregated
(Aggregatings
Set AggregateElem (Restrictings Flat (QueryJoin ConfigureQuery)))
((PlaceHolders p, Record Aggregated r), [OrderingTerm]))
-> AggregatedQuery p r
-> Aggregatings
Set
AggregateElem
(Restrictings Flat (QueryJoin ConfigureQuery))
(((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated])
forall b c a. (b -> c) -> (a -> b) -> a -> c
. AggregatedQuery p r
-> Restrictings
Aggregated
(Aggregatings
Set AggregateElem (Restrictings Flat (QueryJoin ConfigureQuery)))
((PlaceHolders p, Record Aggregated r), [OrderingTerm])
forall (m :: * -> *) c a.
(Monad m, Functor m) =>
Orderings c m a -> m (a, [OrderingTerm])
extractOrderingTerms
toSQL :: AggregatedQuery p r
-> ConfigureQuery String
toSQL :: AggregatedQuery p r -> ConfigureQuery String
toSQL = (SubQuery -> String)
-> Qualify (QueryConfig Identity) SubQuery -> ConfigureQuery String
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap SubQuery -> String
Syntax.toSQL (Qualify (QueryConfig Identity) SubQuery -> ConfigureQuery String)
-> (AggregatedQuery p r -> Qualify (QueryConfig Identity) SubQuery)
-> AggregatedQuery p r
-> ConfigureQuery String
forall b c a. (b -> c) -> (a -> b) -> a -> c
. AggregatedQuery p r -> Qualify (QueryConfig Identity) SubQuery
forall p r.
AggregatedQuery p r -> Qualify (QueryConfig Identity) SubQuery
toSubQuery
toSubQuery :: AggregatedQuery p r
-> ConfigureQuery SubQuery
toSubQuery :: AggregatedQuery p r -> Qualify (QueryConfig Identity) SubQuery
toSubQuery AggregatedQuery p r
q = do
(((((((PlaceHolders p
_ph, Record Aggregated r
pj), [OrderingTerm]
ot), [Predicate Aggregated]
grs), [AggregateElem]
ag), [Predicate Flat]
rs), JoinProduct
pd), Duplication
da) <- AggregatedQuery p r
-> ConfigureQuery
(((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct),
Duplication)
forall p r.
AggregatedQuery p r
-> ConfigureQuery
(((((((PlaceHolders p, Record Aggregated r), [OrderingTerm]),
[Predicate Aggregated]),
[AggregateElem]),
[Predicate Flat]),
JoinProduct),
Duplication)
extract AggregatedQuery p r
q
Config
c <- ConfigureQuery Config
askConfig
SubQuery -> Qualify (QueryConfig Identity) SubQuery
forall (m :: * -> *) a. Monad m => a -> m a
return (SubQuery -> Qualify (QueryConfig Identity) SubQuery)
-> SubQuery -> Qualify (QueryConfig Identity) SubQuery
forall a b. (a -> b) -> a -> b
$ Config
-> Tuple
-> Duplication
-> JoinProduct
-> [Predicate Flat]
-> [AggregateElem]
-> [Predicate Aggregated]
-> [OrderingTerm]
-> SubQuery
aggregatedSubQuery Config
c (Record Aggregated r -> Tuple
forall c r. Record c r -> Tuple
Record.untype Record Aggregated r
pj) Duplication
da JoinProduct
pd [Predicate Flat]
rs [AggregateElem]
ag [Predicate Aggregated]
grs [OrderingTerm]
ot
extractWindow :: Window c a -> ((a, [OrderingTerm]), [AggregateColumnRef])
= Identity ((a, [OrderingTerm]), Tuple)
-> ((a, [OrderingTerm]), Tuple)
forall a. Identity a -> a
runIdentity (Identity ((a, [OrderingTerm]), Tuple)
-> ((a, [OrderingTerm]), Tuple))
-> (Window c a -> Identity ((a, [OrderingTerm]), Tuple))
-> Window c a
-> ((a, [OrderingTerm]), Tuple)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Aggregatings c AggregateColumnRef Identity (a, [OrderingTerm])
-> Identity ((a, [OrderingTerm]), Tuple)
forall (m :: * -> *) ac at a.
(Monad m, Functor m) =>
Aggregatings ac at m a -> m (a, [at])
extractAggregateTerms (Aggregatings c AggregateColumnRef Identity (a, [OrderingTerm])
-> Identity ((a, [OrderingTerm]), Tuple))
-> (Window c a
-> Aggregatings c AggregateColumnRef Identity (a, [OrderingTerm]))
-> Window c a
-> Identity ((a, [OrderingTerm]), Tuple)
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Window c a
-> Aggregatings c AggregateColumnRef Identity (a, [OrderingTerm])
forall (m :: * -> *) c a.
(Monad m, Functor m) =>
Orderings c m a -> m (a, [OrderingTerm])
extractOrderingTerms
over :: SqlContext c
=> Record OverWindow a
-> Window c ()
-> Record c a
Record OverWindow a
wp over :: Record OverWindow a -> Window c () -> Record c a
`over` Window c ()
win =
[StringSQL] -> Record c a
forall c t. [StringSQL] -> Record c t
Record.unsafeFromSqlTerms
[ StringSQL
c StringSQL -> StringSQL -> StringSQL
forall a. Semigroup a => a -> a -> a
<> StringSQL
OVER StringSQL -> StringSQL -> StringSQL
forall a. Semigroup a => a -> a -> a
<> StringSQL -> StringSQL
SQL.paren (Tuple -> StringSQL
composePartitionBy Tuple
pt StringSQL -> StringSQL -> StringSQL
forall a. Semigroup a => a -> a -> a
<> [OrderingTerm] -> StringSQL
composeOrderBy [OrderingTerm]
ot)
| StringSQL
c <- Record OverWindow a -> [StringSQL]
forall c r. Record c r -> [StringSQL]
Record.columns Record OverWindow a
wp
] where (((), [OrderingTerm]
ot), Tuple
pt) = Window c () -> (((), [OrderingTerm]), Tuple)
forall c a. Window c a -> ((a, [OrderingTerm]), Tuple)
extractWindow Window c ()
win
infix 8 `over`