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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 /client/src/View/Category/Reducer.hs | |
parent | 14bdbc8c937f5d0b35c61350dba28cb41c3737cd (diff) | |
parent | 6a04e640955051616c3ad0874605830c448f2d75 (diff) |
Merge branch 'with-ghcjs' into 'master'
Use Haskell on the frontend
See merge request guyonvarch/shared-cost!2
Diffstat (limited to 'client/src/View/Category/Reducer.hs')
-rw-r--r-- | client/src/View/Category/Reducer.hs | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/client/src/View/Category/Reducer.hs b/client/src/View/Category/Reducer.hs new file mode 100644 index 0000000..5ad0ddb --- /dev/null +++ b/client/src/View/Category/Reducer.hs @@ -0,0 +1,59 @@ +module View.Category.Reducer + ( perPage + , reducer + , In(..) + ) where + +import Data.Text (Text) +import qualified Data.Text as T +import Reflex.Dom (Dynamic, Event, MonadWidget) +import qualified Reflex.Dom as R + +import Common.Model (CategoryPage) + +import Loadable (Loadable (..)) +import qualified Loadable as Loadable +import qualified Util.Ajax as AjaxUtil +import qualified Util.Either as EitherUtil + +perPage :: Int +perPage = 7 + +data In t a b c = In + { _in_page :: Event t Int + , _in_addCategory :: Event t a + , _in_editCategory :: Event t b + , _in_deleteCategory :: Event t c + } + +reducer :: forall t m a b c. MonadWidget t m => In t a b c -> m (Dynamic t (Loadable CategoryPage)) +reducer input = do + + postBuild <- R.getPostBuild + + currentPage <- R.holdDyn 1 (_in_page input) + + let loadPage = + R.leftmost + [ 1 <$ postBuild + , _in_page input + , 1 <$ _in_addCategory input + , R.tag (R.current currentPage) (_in_editCategory input) + , R.tag (R.current currentPage) (_in_deleteCategory input) + ] + + getResult <- AjaxUtil.get $ fmap pageUrl loadPage + + R.holdDyn + Loading + (R.leftmost + [ Loading <$ loadPage + , Loadable.fromEither <$> getResult + ]) + + where + pageUrl p = + "api/categories?page=" + <> (T.pack . show $ p) + <> "&perPage=" + <> (T.pack . show $ perPage) |