-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | JSON Pointer extensions for Hasql
--   
--   JSON Pointer extensions for Hasql
@package json-pointer-hasql
@version 0.1


-- | Extension to the <a>Hasql.Encoders</a> module. Contains no conflicting
--   symbols, so it can be imported under the same qualified name, e.g.:
--   
--   <pre>
--   import qualified Hasql.Encoders as Encoders
--   import qualified JSONPointer.Hasql.Encoders as Encoders
--   </pre>
module JSONPointer.Hasql.Encoders

-- | An encoder of JSON Pointer into the <tt>text[]</tt> type of Postgres.
--   
--   Can be used to query the JSON columns, as in the following example:
--   
--   <pre>
--   selectOfJSONByJSONPointer :: Query JSONPointer (Maybe Data.Aeson.Value)
--   selectOfJSONByJSONPointer =
--     statement sql encoder decoder True
--     where
--       sql =
--         "select '{\"1\":[0,1,2,3]}'::jsonb #&gt; $1"
--       encoder =
--         Encoders.value Encoders.textArrayFromJSONPointer
--       decoder =
--         Decoders.singleRow $
--         Decoders.nullableValue Decoders.jsonb
--   </pre>
textArrayFromJSONPointer :: Value JSONPointer