Database.RethinkDB.Driver

Documentation

run :: (Expr query, Result r) => RethinkDBHandle -> query -> IO r

Run a given query and return a Result

>>> run h $ num 1 :: IO Int
1

>>> run h $ str "foo" :: IO (Either RethinkDBError Int)
Left RethinkDB: Unexpected response: "when expecting a Int, encountered String instead"

>>> run h $ str "foo" :: IO (Maybe Int)
Nothing

>>> run h $ str "foo" :: IO Int
*** Exception: RethinkDB: Unexpected response: "when expecting a Int, encountered String instead"

>>> c <- run h $ table "users" # orderBy [asc "name"] # (!"name"):: IO (Cursor Datum)
>>> next c
Just "bill"
>>> collect c
["nancy","sabrina"]

run' :: Expr query => RethinkDBHandle -> query -> IO Datum

Run a given query and return a Datum

class Result r where

Convert the raw query response into useful values

Minimal complete definition

Nothing

Methods

convertResult :: MVar Response -> IO r

Instances

Result Bool

Result Char

Result Double

Result Float

Result Int

Result Int8

Result Int16

Result Int32

Result Int64

Result Integer

Result Word

Result Word8

Result Word16

Result Word32

Result Word64

Result ()

Result ByteString

Result ByteString

Result Text

Result UTCTime

Result Value

Result Text

Result ZonedTime

Result LonLat

Result Datum

Result Response

Result WriteResponse

FromDatum a => Result [a]

Result (Ratio Integer)

FromDatum a => Result (Maybe a)

(Ord a, FromDatum a) => Result (Set a)

FromDatum a => Result (Vector a)

FromDatum a => Result (Cursor a)

(FromDatum b, (~) * a RethinkDBError) => Result (Either a b)

(FromDatum a, FromDatum b) => Result (a, b)

FromDatum a => Result (HashMap [Char] a)

FromDatum a => Result (HashMap Text a)

FromDatum a => Result (Map [Char] a)

FromDatum a => Result (Map Text a)

(FromDatum a, FromDatum b, FromDatum c) => Result (a, b, c)

(FromDatum a, FromDatum b, FromDatum c, FromDatum d) => Result (a, b, c, d)

(FromDatum a, FromDatum b, FromDatum c, FromDatum d, FromDatum e) => Result (a, b, c, d, e)

runOpts :: (Expr query, Result r) => RethinkDBHandle -> [RunFlag] -> query -> IO r

Run a query with the given options

data RunFlag

Per-query settings

Constructors

UseOutdated

Deprecated. Use `ReadMode Outdated` instead

ReadMode ReadMode

NoReply

Durability Durability

Profile

ArrayLimit Int

data WriteResponse

Constructors

WriteResponse

Fields

writeResponseInserted :: Int

writeResponseDeleted :: Int

writeResponseReplaced :: Int

writeResponseUnchanged :: Int

writeResponseSkipped :: Int

writeResponseErrors :: Int

writeResponseFirstError :: Maybe Text

writeResponseGeneratedKeys :: Maybe [Text]

writeResponseChanges :: Maybe [Change]

Instances

Show WriteResponse

FromDatum WriteResponse

Result WriteResponse

data Change

Constructors

Change

Fields

oldVal :: Datum

newVal :: Datum

Instances

Show Change

FromDatum Change