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author | Joris | 2020-01-30 11:35:31 +0000 |
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committer | Joris | 2020-01-30 11:35:31 +0000 |
commit | 960fa7cb7ae4c57d01306f78cd349f3a8337d0ab (patch) | |
tree | 5077cc720525fb025e4dba65a9a8b631862cbcc8 /server/src/Persistence/Frequency.hs | |
parent | 14bdbc8c937f5d0b35c61350dba28cb41c3737cd (diff) | |
parent | 6a04e640955051616c3ad0874605830c448f2d75 (diff) | |
download | budget-960fa7cb7ae4c57d01306f78cd349f3a8337d0ab.tar.gz budget-960fa7cb7ae4c57d01306f78cd349f3a8337d0ab.tar.bz2 budget-960fa7cb7ae4c57d01306f78cd349f3a8337d0ab.zip |
Merge branch 'with-ghcjs' into 'master'
Use Haskell on the frontend
See merge request guyonvarch/shared-cost!2
Diffstat (limited to 'server/src/Persistence/Frequency.hs')
-rw-r--r-- | server/src/Persistence/Frequency.hs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/server/src/Persistence/Frequency.hs b/server/src/Persistence/Frequency.hs new file mode 100644 index 0000000..edaa844 --- /dev/null +++ b/server/src/Persistence/Frequency.hs @@ -0,0 +1,23 @@ +module Persistence.Frequency + ( FrequencyField(..) + ) where + +import qualified Data.Text as T +import Database.SQLite.Simple (SQLData (SQLText)) +import Database.SQLite.Simple.FromField (FromField (fromField), + fieldData) +import Database.SQLite.Simple.Ok (Ok (Errors, Ok)) +import Database.SQLite.Simple.ToField (ToField (toField)) + +import Common.Model (Frequency) + +newtype FrequencyField = FrequencyField Frequency + +instance FromField FrequencyField where + fromField field = + case fieldData field of + SQLText text -> Ok (FrequencyField (read (T.unpack text) :: Frequency)) + _ -> Errors [error "SQLText field required for frequency"] + +instance ToField FrequencyField where + toField (FrequencyField f) = SQLText . T.pack . show $ f |