{-# LANGUAGE TemplateHaskell #-}
module Database.Relational.Schema.MySQL
( module Database.Relational.Schema.MySQL.Config
, normalizeColumn
, notNull
, getType
, columnsQuerySQL
, primaryKeyQuerySQL
)
where
import Data.Int (Int8, Int16, Int32, Int64)
import Data.Char (toLower, toUpper)
import Data.Map (Map, fromList)
import qualified Data.Map as Map
import Data.Time (Day, LocalTime, TimeOfDay)
import Data.Time.Clock.POSIX (POSIXTime)
import Data.ByteString (ByteString)
import Control.Applicative ((<|>))
import Language.Haskell.TH (TypeQ)
import Database.Relational ( Query
, relationalQuery
, query
, relation'
, wheres
, (.=.)
, (!)
, (><)
, placeholder
, asc
, value
)
import Database.Relational.Schema.MySQL.Config
import Database.Relational.Schema.MySQL.Columns (Columns, columns)
import qualified Database.Relational.Schema.MySQL.Columns as Columns
import Database.Relational.Schema.MySQL.TableConstraints (tableConstraints)
import qualified Database.Relational.Schema.MySQL.TableConstraints as Tabconst
import Database.Relational.Schema.MySQL.KeyColumnUsage (keyColumnUsage)
import qualified Database.Relational.Schema.MySQL.KeyColumnUsage as Keycoluse
mapFromSqlDefault :: Map String TypeQ
mapFromSqlDefault :: Map String TypeQ
mapFromSqlDefault = forall k a. Ord k => [(k, a)] -> Map k a
fromList
[ (String
"CHAR", [t| String |])
, (String
"VARCHAR", [t| String |])
, (String
"TINYTEXT", [t| String |])
, (String
"TEXT", [t| String |])
, (String
"MEDIUMTEXT", [t| String |])
, (String
"LONGTEXT", [t| String |])
, (String
"TINYBLOB", [t| ByteString |])
, (String
"BLOB", [t| ByteString |])
, (String
"MEDIUMBLOB", [t| ByteString |])
, (String
"LONGBLOB", [t| ByteString |])
, (String
"DATE", [t| Day |])
, (String
"DATETIME", [t| LocalTime |])
, (String
"TIME", [t| TimeOfDay |])
, (String
"TIMESTAMP", [t| POSIXTime |])
, (String
"TINYINT", [t| Int8 |])
, (String
"SMALLINT", [t| Int16 |])
, (String
"MEDIUMINT", [t| Int32 |])
, (String
"INT", [t| Int32 |])
, (String
"INTEGER", [t| Int32 |])
, (String
"BIGINT", [t| Int64 |])
]
normalizeColumn :: String -> String
normalizeColumn :: String -> String
normalizeColumn = forall a b. (a -> b) -> [a] -> [b]
map Char -> Char
toLower
notNull :: Columns -> Bool
notNull :: Columns -> Bool
notNull = (forall a. Eq a => a -> a -> Bool
== String
"NO") forall b c a. (b -> c) -> (a -> b) -> a -> c
. Columns -> String
Columns.isNullable
getType :: Map String TypeQ
-> Columns
-> Maybe (String, TypeQ)
getType :: Map String TypeQ -> Columns -> Maybe (String, TypeQ)
getType Map String TypeQ
mapFromSql Columns
rec = do
TypeQ
typ <- forall k a. Ord k => k -> Map k a -> Maybe a
Map.lookup String
key Map String TypeQ
mapFromSql
forall (f :: * -> *) a. Alternative f => f a -> f a -> f a
<|>
forall k a. Ord k => k -> Map k a -> Maybe a
Map.lookup String
key Map String TypeQ
mapFromSqlDefault
forall (m :: * -> *) a. Monad m => a -> m a
return (String -> String
normalizeColumn forall a b. (a -> b) -> a -> b
$ Columns -> String
Columns.columnName Columns
rec, forall {m :: * -> *}. Quote m => m Type -> m Type
mayNull TypeQ
typ)
where
key :: String
key = forall a b. (a -> b) -> [a] -> [b]
map Char -> Char
toUpper forall a b. (a -> b) -> a -> b
$ Columns -> String
Columns.dataType Columns
rec
mayNull :: m Type -> m Type
mayNull m Type
typ = if Columns -> Bool
notNull Columns
rec
then m Type
typ
else [t|Maybe $(typ)|]
columnsQuerySQL :: Query (String, String) Columns
columnsQuerySQL :: Query (String, String) Columns
columnsQuerySQL = forall p r. Relation p r -> Query p r
relationalQuery Relation (String, String) Columns
columnsRelationFromTable
where
columnsRelationFromTable :: Relation (String, String) Columns
columnsRelationFromTable = forall p r. SimpleQuery p r -> Relation p r
relation' forall a b. (a -> b) -> a -> b
$ do
Record Flat Columns
c <- forall (m :: * -> *) r.
(MonadQualify ConfigureQuery m, MonadQuery m) =>
Relation () r -> m (Record Flat r)
query Relation () Columns
columns
(PlaceHolders String
schemaP, ()) <- forall t c (m :: * -> *) a.
(PersistableWidth t, SqlContext c, Monad m) =>
(Record c t -> m a) -> m (PlaceHolders t, a)
placeholder (\Record Flat String
ph -> forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat Columns
c forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi Columns String
Columns.tableSchema' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat String
ph)
(PlaceHolders String
nameP , ()) <- forall t c (m :: * -> *) a.
(PersistableWidth t, SqlContext c, Monad m) =>
(Record c t -> m a) -> m (PlaceHolders t, a)
placeholder (\Record Flat String
ph -> forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat Columns
c forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi Columns String
Columns.tableName' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat String
ph)
forall (m :: * -> *) c t. Monad m => Record c t -> Orderings c m ()
asc forall a b. (a -> b) -> a -> b
$ Record Flat Columns
c forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi Columns Int16
Columns.ordinalPosition'
forall (m :: * -> *) a. Monad m => a -> m a
return (PlaceHolders String
schemaP forall (p :: * -> *) a b.
ProductIsoApplicative p =>
p a -> p b -> p (a, b)
>< PlaceHolders String
nameP, Record Flat Columns
c)
primaryKeyQuerySQL :: Query (String, String) String
primaryKeyQuerySQL :: Query (String, String) String
primaryKeyQuerySQL = forall p r. Relation p r -> Query p r
relationalQuery Relation (String, String) String
primaryKeyRelation
where
primaryKeyRelation :: Relation (String, String) String
primaryKeyRelation = forall p r. SimpleQuery p r -> Relation p r
relation' forall a b. (a -> b) -> a -> b
$ do
Record Flat TableConstraints
cons <- forall (m :: * -> *) r.
(MonadQualify ConfigureQuery m, MonadQuery m) =>
Relation () r -> m (Record Flat r)
query Relation () TableConstraints
tableConstraints
Record Flat KeyColumnUsage
key <- forall (m :: * -> *) r.
(MonadQualify ConfigureQuery m, MonadQuery m) =>
Relation () r -> m (Record Flat r)
query Relation () KeyColumnUsage
keyColumnUsage
forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.tableSchema' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat KeyColumnUsage
key forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi KeyColumnUsage String
Keycoluse.tableSchema'
forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.tableName' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat KeyColumnUsage
key forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi KeyColumnUsage String
Keycoluse.tableName'
forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.constraintName' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat KeyColumnUsage
key forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi KeyColumnUsage String
Keycoluse.constraintName'
(PlaceHolders String
schemaP, ()) <- forall t c (m :: * -> *) a.
(PersistableWidth t, SqlContext c, Monad m) =>
(Record c t -> m a) -> m (PlaceHolders t, a)
placeholder (\Record Flat String
ph -> forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.tableSchema' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat String
ph)
(PlaceHolders String
nameP , ()) <- forall t c (m :: * -> *) a.
(PersistableWidth t, SqlContext c, Monad m) =>
(Record c t -> m a) -> m (PlaceHolders t, a)
placeholder (\Record Flat String
ph -> forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.tableName' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. Record Flat String
ph)
forall (m :: * -> *).
MonadRestrict Flat m =>
Predicate Flat -> m ()
wheres forall a b. (a -> b) -> a -> b
$ Record Flat TableConstraints
cons forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi TableConstraints String
Tabconst.constraintType' forall c ft.
OperatorContext c =>
Record c ft -> Record c ft -> Record c (Maybe Bool)
.=. forall t c. (LiteralSQL t, OperatorContext c) => t -> Record c t
value String
"PRIMARY KEY"
forall (m :: * -> *) c t. Monad m => Record c t -> Orderings c m ()
asc forall a b. (a -> b) -> a -> b
$ Record Flat KeyColumnUsage
key forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi KeyColumnUsage Int16
Keycoluse.ordinalPosition'
forall (m :: * -> *) a. Monad m => a -> m a
return (PlaceHolders String
schemaP forall (p :: * -> *) a b.
ProductIsoApplicative p =>
p a -> p b -> p (a, b)
>< PlaceHolders String
nameP, Record Flat KeyColumnUsage
key forall a c b.
PersistableWidth a =>
Record c a -> Pi a b -> Record c b
! Pi KeyColumnUsage String
Keycoluse.columnName')