Safe Haskell	Safe
Language	Haskell2010

CreateParser

Description

Synopsis

data CreateExpr = Create {
- iTname :: ValueExpr
- iColLists :: [(ValueExpr, Datatype)]
}
createExpr :: Parser CreateExpr
makeCreate :: CreateExpr
evaluateCreate :: Either ParseError CreateExpr -> Maybe Database -> Maybe Database

Documentation

data CreateExpr Source #

CreateExpr is a constructor for Create Queries

Constructors

Create
Fields iTname :: ValueExpr `iTname` is name of the table iColLists :: [(ValueExpr, Datatype)] `iColLists` contains list of column names and their dataype values

Instances

Eq CreateExpr Source #
Instance details Defined in CreateParser Methods (==) :: CreateExpr -> CreateExpr -> Bool # (/=) :: CreateExpr -> CreateExpr -> Bool #
Show CreateExpr Source #
Instance details Defined in CreateParser Methods showsPrec :: Int -> CreateExpr -> ShowS # show :: CreateExpr -> String # showList :: [CreateExpr] -> ShowS #

createExpr :: Parser CreateExpr Source #

createExpr aggerates all parsers to parse CREATE query

makeCreate :: CreateExpr Source #

makeCreate creates empty CreateExpr object

evaluateCreate :: Either ParseError CreateExpr -> Maybe Database -> Maybe Database Source #

evaluateCreate evaluates parsed CreateExpr to create a new table and add columns to it. First argument is parsed CreateExpr Second argument is databse instance