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author | Julien Dessaux | 2023-07-20 00:24:31 +0200 |
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committer | Julien Dessaux | 2023-07-20 00:24:31 +0200 |
commit | 24f6c8eb90555b81a96b142fec8057b05d334035 (patch) | |
tree | d85d9f71cb9dc6472d6cb4e95a0d2ca256308ce8 /haskell/src/SpaceTraders/Database/Agents.hs | |
parent | [haskell] Fixed models' serialization (diff) | |
download | spacetraders-24f6c8eb90555b81a96b142fec8057b05d334035.tar.gz spacetraders-24f6c8eb90555b81a96b142fec8057b05d334035.tar.bz2 spacetraders-24f6c8eb90555b81a96b142fec8057b05d334035.zip |
[haskell] Finalized the agent initialization, refresh and reset
Diffstat (limited to '')
-rw-r--r-- | haskell/src/SpaceTraders/Database/Agents.hs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/haskell/src/SpaceTraders/Database/Agents.hs b/haskell/src/SpaceTraders/Database/Agents.hs index b34ca04..0557b1d 100644 --- a/haskell/src/SpaceTraders/Database/Agents.hs +++ b/haskell/src/SpaceTraders/Database/Agents.hs @@ -2,16 +2,31 @@ module SpaceTraders.Database.Agents ( addAgent + , getAgent + , setAgent ) where import Control.Monad.Reader import Data.Aeson +import Data.Maybe import qualified Database.SQLite.Simple as S import SpaceTraders import SpaceTraders.Model.Agent +import SpaceTraders.Utils addAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => Agent -> m () addAgent agent = do env <- ask liftIO $ S.execute (getConn env) "INSERT INTO agents(data) VALUES (json(?));" (S.Only (encode agent)) + +getAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => m Agent +getAgent = do + env <- ask + ret <- liftIO $ S.query_ (getConn env) "SELECT data FROM agents;" + return . head . catMaybes $ map (decodeText . head) ret + +setAgent :: (HasDatabaseConn env, MonadIO m, MonadReader env m) => Agent -> m () +setAgent agent = do + env <- ask + liftIO $ S.execute (getConn env) "UPDATE agents SET data = json(?);" (S.Only (encode agent)) |