Files
postgrest/src/PostgREST/SchemaCache/Table.hs
T
Alexander LjungbergandGitHub 43ad6d6aa0 feat: validate ?columns mutation targets based on schema cache (#2542)
This returns an error for trying to update or insert into invalid columns, without hitting the database. This change also switches from `json_populate_recordset` for these operations `json_to_recordset` which should make no functional difference except allowing future flexibility.
2023-01-07 22:08:30 -05:00

59 lines
1.7 KiB
Haskell

{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleInstances #-}
module PostgREST.SchemaCache.Table
( Column(..)
, Table(..)
, tableColumnsList
, TablesMap
, ColumnMap
) where
import qualified Data.Aeson as JSON
import qualified Data.HashMap.Strict as HM
import qualified Data.HashMap.Strict.InsOrd as HMI
import PostgREST.SchemaCache.Identifiers (FieldName,
QualifiedIdentifier (..),
Schema, TableName)
import Protolude
data Table = Table
{ tableSchema :: Schema
, tableName :: TableName
, tableDescription :: Maybe Text
-- TODO Find a better way to separate tables and views
, tableIsView :: Bool
-- The following fields identify what can be done on the table/view, they're not related to the privileges granted to it
, tableInsertable :: Bool
, tableUpdatable :: Bool
, tableDeletable :: Bool
, tablePKCols :: [FieldName]
, tableColumns :: ColumnMap
}
deriving (Show, Generic, JSON.ToJSON)
tableColumnsList :: Table -> [Column]
tableColumnsList = HMI.elems . tableColumns
instance Eq Table where
Table{tableSchema=s1,tableName=n1} == Table{tableSchema=s2,tableName=n2} = s1 == s2 && n1 == n2
data Column = Column
{ colName :: FieldName
, colDescription :: Maybe Text
, colNullable :: Bool
, colType :: Text
, colNominalType :: Text
, colMaxLen :: Maybe Int32
, colDefault :: Maybe Text
, colEnum :: [Text]
}
deriving (Eq, Show, Ord, Generic, JSON.ToJSON)
type TablesMap = HM.HashMap QualifiedIdentifier Table
type ColumnMap = HMI.InsOrdHashMap FieldName Column