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Use FormParser API in smoothies example.

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Dillon Kearns 2022-06-03 07:24:03 -07:00
parent 2e1fbf0fe7
commit e13f3def99
1 changed files with 35 additions and 25 deletions
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60
examples/smoothies/app/Route/Index.elm
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@ -15,6 +15,8 @@ import Html.Attributes as Attr
import Html.Events
import Icon
import MySession
import Pages.Form
import Pages.FormParser as FormParser
import Pages.Msg
import Pages.PageUrl exposing (PageUrl)
import Path exposing (Path)
@ -123,29 +125,31 @@ type Action
| SetQuantity Uuid Int
actionFormDecoder : FormParser.Parser String Action
actionFormDecoder =
FormParser.required "kind" "Kind is required"
|> FormParser.andThen
(\kind ->
if kind == "signout" then
FormParser.succeed Signout
else if kind == "add" then
FormParser.map2 SetQuantity
(FormParser.required "itemId" "First is required" |> FormParser.map Uuid)
-- TODO what's the best way to combine together int and required? Should it be `requiredInt`, or `Form.required |> Form.int`?
(FormParser.int "setQuantity" "Expected setQuantity to be an integer")
else
FormParser.fail "Error"
)
action : RouteParams -> Request.Parser (DataSource (Response ActionData ErrorPage))
action routeParams =
let
formParser : Request.Parser Action
formParser =
Request.expectFormPost
(\{ field } ->
Request.oneOf
[ field "signout" |> Request.map (\_ -> Signout)
, Request.map2
(\itemId quantityToSet ->
SetQuantity (Uuid itemId)
(quantityToSet |> String.toInt |> Maybe.withDefault 1)
)
(field "itemId")
(field "setQuantity")
]
)
in
Request.map2 Tuple.pair
formParser
(Request.formParser actionFormDecoder)
Request.requestTime
|> MySession.expectSessionDataOrRedirect (Session.get "userId")
|> MySession.expectSessionDataOrRedirect (Session.get "userId" >> Maybe.map Uuid)
(\userId ( parsedAction, requestTime ) session ->
case parsedAction of
Signout ->
@ -153,7 +157,7 @@ action routeParams =
|> DataSource.map (Tuple.pair Session.empty)
SetQuantity itemId quantity ->
(Cart.addItemToCart quantity (Uuid userId) itemId
(Cart.addItemToCart quantity userId itemId
|> Request.Hasura.mutationDataSource requestTime
|> DataSource.map
(\_ -> Response.render {})
@ -177,9 +181,9 @@ view maybeUrl sharedModel model app =
app.fetchers
|> List.filterMap
(\pending ->
case pending.payload.fields of
[ ( "itemId", itemId ), ( "setQuantity", addAmount ) ] ->
Just ( itemId, addAmount |> String.toInt |> Maybe.withDefault 0 )
case FormParser.runOnList pending.payload.fields actionFormDecoder of
( Just (SetQuantity itemId addAmount), _ ) ->
Just ( uuidToString itemId, addAmount )
_ ->
Nothing
@ -220,7 +224,7 @@ view maybeUrl sharedModel model app =
[ Attr.method "POST"
, Pages.Msg.onSubmit
]
[ Html.button [ Attr.name "signout", Attr.value "" ] [ Html.text "Sign out" ] ]
[ Html.button [ Attr.name "kind", Attr.value "signout" ] [ Html.text "Sign out" ] ]
]
, cartView totals
, app.data.smoothies
@ -246,7 +250,7 @@ uuidToString (Uuid id) =
id
productView : Dict String Cart.CartEntry -> Smoothie -> Html (Pages.Msg.Msg msg)
productView : Dict String Cart.CartEntry -> Smoothie -> Html (Pages.Msg.Msg Msg)
productView cart item =
let
quantityInCart : Int
@ -267,6 +271,12 @@ productView cart item =
, Pages.Msg.fetcherOnSubmit
]
[ Html.input
[ Attr.type_ "hidden"
, Attr.name "kind"
, Attr.value "add"
]
[]
, Html.input
[ Attr.type_ "hidden"
, Attr.name "itemId"
, Attr.value (uuidToString item.id)