Sure I'm using something different. :-)
On Wednesday, November 16, 2016 at 12:07:25 AM UTC+1, OvermindDL1 wrote:
>
> aMSG is not a valid constructor name, perhaps instead AMSG or A_Msg or
> MsgA or so, as long as it starts with an uppercase. :-)
>
>
> On Tuesday, November 15, 2016 at 3:50:36 PM UTC-7, Tim Bezhashvyly wrote:
>>
>> Thank you. Tried to apply it but my problem is that I'm trying to send
>> initialize a request on init:
>>
>> init : ( Model, Cmd Msg )
>> init =
>> ( {
>> -- my model here
>> }
>> , getJson
>> )
>>
>> And of course `getJson` is returning `A.Msg`, so even if in B I declare:
>>
>> type Msg
>> = aMSG A.Msg
>> | SomeLocalMessage
>>
>>
>> I'm still getting an error that init was expecting `Main.Msg` but got
>> `A.Msg`.
>>
>> Hope I make sense.
>>
>>
>> On Tuesday, November 15, 2016 at 7:40:50 AM UTC+1, Peter Damoc wrote:
>>>
>>> There used to be a "nesting" set of examples in The Elm Architecture but
>>> lately this approach has been discouraged.
>>>
>>> What you describe here is a kind of decomposition into components.
>>>
>>> It is recommended that you have one model and you decompose the
>>> functionality of update & view using regular functions.
>>>
>>> If you want to see how this used to be done, take a look at the old
>>> CounterPair example:
>>>
>>> https://github.com/pdamoc/elm-architecture-tutorial/blob/master/examples/2/CounterPair.elm
>>>
>>> Please note that this code is obsolete.
>>>
>>>
>>>
>>>
>>> On Mon, Nov 14, 2016 at 4:43 PM, Tim Bezhashvyly <[email protected]>
>>> wrote:
>>>
>>>> I just started digging into Elm so quite possible that my question has
>>>> a conceptual problem. Please let me know if so.
>>>>
>>>> I have a module A which is asynchronously reading data from JSON.
>>>> Module A among other things exposes `getJson` function. As the read is
>>>> processing data asynchronously it can not just return data structure but
>>>> returning it's Msg type instead which is:
>>>>
>>>> type Msg
>>>> = FetchSucceed (Maybe Jobs)
>>>> | FetchFail Http.Error
>>>>
>>>> Now if module B imports module A it can call `getJson` method but it
>>>> will only trigger initial call and then has to listen to `FetchSucceed
>>>> `:
>>>>
>>>> update : A.Msg -> A -> (A, Cmd A.Msg)
>>>> update msg model =
>>>> case msg of
>>>> FetchSucceed a ->
>>>> (A a, Cmd.none)
>>>>
>>>> FetchFail _ ->
>>>> (model, Cmd.none)
>>>>
>>>> My question is if module B has it's own command how does `update`
>>>> function combines listening to commands from both modules?
>>>>
>>>> Thanks.
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> There is NO FATE, we are the creators.
>>> blog: http://damoc.ro/
>>>
>>
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