Shift all the parts up a number.

part10/ElmHub.elm

@@ -3,6 +3,7 @@ module ElmHub (..) where
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (..)
+import Html.Lazy exposing (..)
 import Http
 import Auth
 import Task exposing (Task)
@@ -34,7 +35,8 @@ searchFeed query =
 
 responseDecoder : Decoder (List SearchResult.Model)
 responseDecoder =
-  "items" := Json.Decode.list SearchResult.decoder
+  -- TODO make use of SearchResult's decoder
+  Json.Decode.succeed []
 
 
 type alias Model =
@@ -72,15 +74,7 @@ viewSearchResults address results =
   results
     |> Dict.values
     |> List.sortBy (.stars >> negate)
-    |> filterResults
-    |> List.map (SearchResult.view address DeleteById)
-
-
-filterResults : List SearchResult.Model -> List SearchResult.Model
-filterResults results =
-  -- TODO filter out repos with 0 stars
-  -- using a case-expression rather than List.filter
-  results
+    |> List.map (\_ -> div [] [ text "TODO replace this line with view logic from SearchResult" ])
 
 
 onInput address wrap =

part10/README.md

@@ -1,5 +1,5 @@
-Part 10
-=======
+Part 9
+======
 
 ## Installation
 

part10/SearchResult.elm

@@ -28,23 +28,18 @@ decoder =
     ("stargazers_count" := Json.Decode.int)
 
 
-view : Address a -> (Int -> a) -> Model -> Html
-view address delete result =
+view : Address a -> Model -> Html
+view address result =
   li
     []
     [ span [ class "star-count" ] [ text (toString result.stars) ]
     , a
-        [ href
-            ("https://github.com/"
-              ++ (Debug.log
-                    "TODO we should not see this when typing in the search box!"
-                    result.name
-                 )
-            )
+        [ href ("https://github.com/" ++ result.name)
         , target "_blank"
         ]
         [ text result.name ]
     , button
-        [ class "hide-result", onClick address (delete result.id) ]
+        -- TODO onClick, send a delete action to the address
+        [ class "hide-result" ]
         [ text "X" ]
     ]

part11/ElmHub.elm

@@ -3,7 +3,6 @@ module ElmHub (..) where
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (..)
-import Html.Lazy exposing (..)
 import Http
 import Auth
 import Task exposing (Task)
@@ -74,20 +73,14 @@ viewSearchResults address results =
     |> Dict.values
     |> List.sortBy (.stars >> negate)
     |> filterResults
-    |> List.map (lazy3 SearchResult.view address DeleteById)
+    |> List.map (SearchResult.view address DeleteById)
 
 
 filterResults : List SearchResult.Model -> List SearchResult.Model
 filterResults results =
-  case results of
-    [] ->
-      []
-
-    result :: rest ->
-      if result.stars > 0 then
-        result :: (filterResults rest)
-      else
-        filterResults rest
+  -- TODO filter out repos with 0 stars
+  -- using a case-expression rather than List.filter
+  results
 
 
 onInput address wrap =

part11/README.md

@@ -1,4 +1,4 @@
-Part 11
+Part 10
 =======
 
 ## Installation
@@ -15,9 +15,3 @@ to fail; in that case, just run `elm package install` again.)
 ```bash
 elm live Main.elm --open -- --output=elm.js
 ```
-
-## Compiling CSS
-
-```bash
-elm css Stylesheets.elm
-```

part11/SearchResult.elm

@@ -34,7 +34,13 @@ view address delete result =
     []
     [ span [ class "star-count" ] [ text (toString result.stars) ]
     , a
-        [ href ("https://github.com/" ++ result.name)
+        [ href
+            ("https://github.com/"
+              ++ (Debug.log
+                    "TODO we should not see this when typing in the search box!"
+                    result.name
+                 )
+            )
         , target "_blank"
         ]
         [ text result.name ]

part11/elm-package.json

@@ -12,8 +12,7 @@
         "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
         "evancz/elm-html": "4.0.0 <= v < 5.0.0",
         "evancz/elm-http": "3.0.0 <= v < 4.0.0",
-        "evancz/start-app": "2.0.0 <= v < 3.0.0",
-        "rtfeldman/elm-css": "1.0.0 <= v < 2.0.0"
+        "evancz/start-app": "2.0.0 <= v < 3.0.0"
     },
     "elm-version": "0.16.0 <= v < 0.17.0"
 }

part11/style.css

@@ -1,6 +1,92 @@
+
 .content {
   width: 960px;
   margin: 0 auto;
   padding: 30px;
   font-family: Helvetica, Arial, serif;
 }
+
+header {
+  position: relative;
+  padding: 6px 12px;
+  height: 36px;
+  background-color: rgb(96, 181, 204);
+}
+
+h1 {
+  color: white;
+  font-weight: normal;
+  margin: 0;
+}
+
+.tagline {
+  color: #eee;
+  position: absolute;
+  right: 16px;
+  top: 12px;
+  font-size: 24px;
+  font-style: italic;
+}
+
+.results {
+  list-style-image: url('http://img-cache.cdn.gaiaonline.com/76bd5c99d8f2236e9d3672510e933fdf/http://i278.photobucket.com/albums/kk81/d3m3nt3dpr3p/Tiny-Star-Icon.png');
+  list-style-position: inside;
+  padding: 0;
+}
+
+.results li {
+  font-size: 18px;
+  margin-bottom: 16px;
+}
+
+.star-count {
+  font-weight: bold;
+  margin-right: 16px;
+}
+
+a {
+  color: rgb(96, 181, 204);
+  text-decoration: none;
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+.search-query {
+  padding: 8px;
+  font-size: 24px;
+  margin-bottom: 18px;
+  margin-top: 36px;
+}
+
+.search-button {
+  padding: 8px 16px;
+  font-size: 24px;
+  color: white;
+  border: 1px solid #ccc;
+  background-color: rgb(96, 181, 204);
+  margin-left: 12px
+}
+
+.search-button:hover {
+  color: rgb(96, 181, 204);
+  background-color: white;
+}
+
+.hide-result {
+  background-color: transparent;
+  border: 0;
+  font-weight: bold;
+  font-size: 18px;
+  margin-left: 18px;
+  cursor: pointer;
+}
+
+.hide-result:hover {
+  color: rgb(96, 181, 204);
+}
+
+button:focus, input:focus {
+  outline: none;
+}

part12/ElmHub.elm

@@ -0,0 +1,132 @@
+module ElmHub (..) where
+
+import Html exposing (..)
+import Html.Attributes exposing (..)
+import Html.Events exposing (..)
+import Html.Lazy exposing (..)
+import Http
+import Auth
+import Task exposing (Task)
+import Effects exposing (Effects)
+import Json.Decode exposing (Decoder, (:=))
+import Json.Encode
+import Signal exposing (Address)
+import Dict exposing (Dict)
+import SearchResult
+
+
+searchFeed : String -> Task x Action
+searchFeed query =
+  let
+    -- See https://developer.github.com/v3/search/#example for how to customize!
+    url =
+      "https://api.github.com/search/repositories?access_token="
+        ++ Auth.token
+        ++ "&q="
+        ++ query
+        ++ "+language:elm&sort=stars&order=desc"
+
+    task =
+      Http.get responseDecoder url
+        |> Task.map SetResults
+  in
+    Task.onError task (\_ -> Task.succeed (SetResults []))
+
+
+responseDecoder : Decoder (List SearchResult.Model)
+responseDecoder =
+  "items" := Json.Decode.list SearchResult.decoder
+
+
+type alias Model =
+  { query : String
+  , results : Dict SearchResult.ResultId SearchResult.Model
+  }
+
+
+initialModel : Model
+initialModel =
+  { query = "tutorial"
+  , results = Dict.empty
+  }
+
+
+view : Address Action -> Model -> Html
+view address model =
+  div
+    [ class "content" ]
+    [ header
+        []
+        [ h1 [] [ text "ElmHub" ]
+        , span [ class "tagline" ] [ text "“Like GitHub, but for Elm things.”" ]
+        ]
+    , input [ class "search-query", onInput address SetQuery, defaultValue model.query ] []
+    , button [ class "search-button", onClick address Search ] [ text "Search" ]
+    , ul
+        [ class "results" ]
+        (viewSearchResults address model.results)
+    ]
+
+
+viewSearchResults : Address Action -> Dict SearchResult.ResultId SearchResult.Model -> List Html
+viewSearchResults address results =
+  results
+    |> Dict.values
+    |> List.sortBy (.stars >> negate)
+    |> filterResults
+    |> List.map (lazy3 SearchResult.view address DeleteById)
+
+
+filterResults : List SearchResult.Model -> List SearchResult.Model
+filterResults results =
+  case results of
+    [] ->
+      []
+
+    result :: rest ->
+      if result.stars > 0 then
+        result :: (filterResults rest)
+      else
+        filterResults rest
+
+
+onInput address wrap =
+  on "input" targetValue (\val -> Signal.message address (wrap val))
+
+
+defaultValue str =
+  property "defaultValue" (Json.Encode.string str)
+
+
+type Action
+  = Search
+  | SetQuery String
+  | DeleteById SearchResult.ResultId
+  | SetResults (List SearchResult.Model)
+
+
+update : Action -> Model -> ( Model, Effects Action )
+update action model =
+  case action of
+    Search ->
+      ( model, Effects.task (searchFeed model.query) )
+
+    SetQuery query ->
+      ( { model | query = query }, Effects.none )
+
+    SetResults results ->
+      let
+        resultsById : Dict SearchResult.ResultId SearchResult.Model
+        resultsById =
+          results
+            |> List.map (\result -> ( result.id, result ))
+            |> Dict.fromList
+      in
+        ( { model | results = resultsById }, Effects.none )
+
+    DeleteById id ->
+      let
+        newModel =
+          { model | results = Dict.remove id model.results }
+      in
+        ( newModel, Effects.none )

part12/Main.elm

@@ -1,7 +1,7 @@
 module Main (..) where
 
 import StartApp
-import Component.ElmHub exposing (..)
+import ElmHub exposing (..)
 import Effects exposing (Effects)
 import Task exposing (Task)
 import Html exposing (Html)

part12/README.md

@@ -1,4 +1,4 @@
-Part 12
+Part 11
 =======
 
 ## Installation
@@ -15,3 +15,9 @@ to fail; in that case, just run `elm package install` again.)
 ```bash
 elm live Main.elm --open -- --output=elm.js
 ```
+
+## Compiling CSS
+
+```bash
+elm css Stylesheets.elm
+```

part12/SearchResult.elm

@@ -28,8 +28,8 @@ decoder =
     ("stargazers_count" := Json.Decode.int)
 
 
-view : Address a -> Model -> Html
-view address result =
+view : Address a -> (Int -> a) -> Model -> Html
+view address delete result =
   li
     []
     [ span [ class "star-count" ] [ text (toString result.stars) ]
@@ -39,7 +39,6 @@ view address result =
         ]
         [ text result.name ]
     , button
-        -- TODO onClick, send a delete action to the address
-        [ class "hide-result" ]
+        [ class "hide-result", onClick address (delete result.id) ]
         [ text "X" ]
     ]

part12/elm-package.json

@@ -12,7 +12,8 @@
         "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
         "evancz/elm-html": "4.0.0 <= v < 5.0.0",
         "evancz/elm-http": "3.0.0 <= v < 4.0.0",
-        "evancz/start-app": "2.0.0 <= v < 3.0.0"
+        "evancz/start-app": "2.0.0 <= v < 3.0.0",
+        "rtfeldman/elm-css": "1.0.0 <= v < 2.0.0"
     },
     "elm-version": "0.16.0 <= v < 0.17.0"
 }

part12/style.css

@@ -1,92 +1,6 @@
-
 .content {
     width: 960px;
     margin: 0 auto;
     padding: 30px;
     font-family: Helvetica, Arial, serif;
 }
-
-header {
-  position: relative;
-  padding: 6px 12px;
-  height: 36px;
-  background-color: rgb(96, 181, 204);
-}
-
-h1 {
-  color: white;
-  font-weight: normal;
-  margin: 0;
-}
-
-.tagline {
-  color: #eee;
-  position: absolute;
-  right: 16px;
-  top: 12px;
-  font-size: 24px;
-  font-style: italic;
-}
-
-.results {
-  list-style-image: url('http://img-cache.cdn.gaiaonline.com/76bd5c99d8f2236e9d3672510e933fdf/http://i278.photobucket.com/albums/kk81/d3m3nt3dpr3p/Tiny-Star-Icon.png');
-  list-style-position: inside;
-  padding: 0;
-}
-
-.results li {
-  font-size: 18px;
-  margin-bottom: 16px;
-}
-
-.star-count {
-  font-weight: bold;
-  margin-right: 16px;
-}
-
-a {
-  color: rgb(96, 181, 204);
-  text-decoration: none;
-}
-
-a:hover {
-  text-decoration: underline;
-}
-
-.search-query {
-  padding: 8px;
-  font-size: 24px;
-  margin-bottom: 18px;
-  margin-top: 36px;
-}
-
-.search-button {
-  padding: 8px 16px;
-  font-size: 24px;
-  color: white;
-  border: 1px solid #ccc;
-  background-color: rgb(96, 181, 204);
-  margin-left: 12px
-}
-
-.search-button:hover {
-  color: rgb(96, 181, 204);
-  background-color: white;
-}
-
-.hide-result {
-  background-color: transparent;
-  border: 0;
-  font-weight: bold;
-  font-size: 18px;
-  margin-left: 18px;
-  cursor: pointer;
-}
-
-.hide-result:hover {
-  color: rgb(96, 181, 204);
-}
-
-button:focus, input:focus {
-  outline: none;
-}

part13/part12/Main.elm

@@ -0,0 +1,27 @@
+module Main (..) where
+
+import StartApp
+import Component.ElmHub exposing (..)
+import Effects exposing (Effects)
+import Task exposing (Task)
+import Html exposing (Html)
+
+
+main : Signal Html
+main =
+  app.html
+
+
+app : StartApp.App Model
+app =
+  StartApp.start
+    { view = view
+    , update = update
+    , init = ( initialModel, Effects.task (searchFeed initialModel.query) )
+    , inputs = []
+    }
+
+
+port tasks : Signal (Task Effects.Never ())
+port tasks =
+  app.tasks

part13/part12/README.md

@@ -0,0 +1,17 @@
+Part 12
+=======
+
+## Installation
+
+```bash
+elm package install
+```
+
+(Answer `y` at the prompt. In rare cases a known issue can cause the download
+to fail; in that case, just run `elm package install` again.)
+
+## Building
+
+```bash
+elm live Main.elm --open -- --output=elm.js
+```

part13/part12/elm-package.json

@@ -0,0 +1,18 @@
+{
+    "version": "1.0.0",
+    "summary": "Like GitHub, but for Elm stuff.",
+    "repository": "https://github.com/rtfeldman/elm-workshop.git",
+    "license": "BSD-3-Clause",
+    "source-directories": [
+        ".", ".."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "elm-lang/core": "3.0.0 <= v < 4.0.0",
+        "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
+        "evancz/elm-html": "4.0.0 <= v < 5.0.0",
+        "evancz/elm-http": "3.0.0 <= v < 4.0.0",
+        "evancz/start-app": "2.0.0 <= v < 3.0.0"
+    },
+    "elm-version": "0.16.0 <= v < 0.17.0"
+}

part13/part12/index.html

@@ -0,0 +1,26 @@
+<!DOCTYPE HTML>
+<html>
+
+<head>
+  <meta charset="UTF-8">
+  <title>ElmHub</title>
+  <script type="text/javascript" src="elm.js"></script>
+
+  <!-- Uncomment the below line to enable elm-reactor support. -->
+  <!-- <script type="text/javascript" src="/_reactor/debug.js"></script> -->
+
+  <link rel="stylesheet" href="style.css">
+  <link rel="icon" type="image/png" href="elm-hub.png">
+</head>
+
+<body>
+</body>
+
+<script type="text/javascript">
+  var app = Elm.fullscreen(Elm.Main, {});
+
+  // Uncomment this line and comment out the above to enable elm-reactor support.
+  // var app = Elm.fullscreenDebug("ElmHub", "Main.elm");
+</script>
+
+</html>

part13/part12/style.css

@@ -0,0 +1,92 @@
+
+.content {
+  width: 960px;
+  margin: 0 auto;
+  padding: 30px;
+  font-family: Helvetica, Arial, serif;
+}
+
+header {
+  position: relative;
+  padding: 6px 12px;
+  height: 36px;
+  background-color: rgb(96, 181, 204);
+}
+
+h1 {
+  color: white;
+  font-weight: normal;
+  margin: 0;
+}
+
+.tagline {
+  color: #eee;
+  position: absolute;
+  right: 16px;
+  top: 12px;
+  font-size: 24px;
+  font-style: italic;
+}
+
+.results {
+  list-style-image: url('http://img-cache.cdn.gaiaonline.com/76bd5c99d8f2236e9d3672510e933fdf/http://i278.photobucket.com/albums/kk81/d3m3nt3dpr3p/Tiny-Star-Icon.png');
+  list-style-position: inside;
+  padding: 0;
+}
+
+.results li {
+  font-size: 18px;
+  margin-bottom: 16px;
+}
+
+.star-count {
+  font-weight: bold;
+  margin-right: 16px;
+}
+
+a {
+  color: rgb(96, 181, 204);
+  text-decoration: none;
+}
+
+a:hover {
+  text-decoration: underline;
+}
+
+.search-query {
+  padding: 8px;
+  font-size: 24px;
+  margin-bottom: 18px;
+  margin-top: 36px;
+}
+
+.search-button {
+  padding: 8px 16px;
+  font-size: 24px;
+  color: white;
+  border: 1px solid #ccc;
+  background-color: rgb(96, 181, 204);
+  margin-left: 12px
+}
+
+.search-button:hover {
+  color: rgb(96, 181, 204);
+  background-color: white;
+}
+
+.hide-result {
+  background-color: transparent;
+  border: 0;
+  font-weight: bold;
+  font-size: 18px;
+  margin-left: 18px;
+  cursor: pointer;
+}
+
+.hide-result:hover {
+  color: rgb(96, 181, 204);
+}
+
+button:focus, input:focus {
+  outline: none;
+}

part13/part12/test/TestRunner.elm

@@ -0,0 +1,15 @@
+module Main where
+
+import Signal exposing (Signal)
+
+import ElmTest exposing (consoleRunner)
+import Console exposing (IO, run)
+import Task
+
+import Tests
+
+console : IO ()
+console = consoleRunner Tests.all
+
+port runner : Signal (Task.Task x ())
+port runner = run console

part13/part12/test/Tests.elm

@@ -0,0 +1,35 @@
+module Tests (..) where
+
+import ElmTest exposing (..)
+import ElmHub exposing (responseDecoder)
+import Json.Decode exposing (decodeString)
+
+
+all : Test
+all =
+  suite
+    "Decoding responses from GitHub"
+    [ test "they can decode empty responses"
+        <| let
+            emptyResponse =
+              """{ "items": [] }"""
+           in
+            assertEqual
+              (decodeString responseDecoder emptyResponse)
+              (Ok [])
+    , test "they can decode responses with results in them"
+        <| let
+            response =
+              """{ "items": [
+                { "id": 5, "full_name": "foo", "stargazers_count": 42 },
+                { "id": 3, "full_name": "bar", "stargazers_count": 77 }
+              ] }"""
+           in
+            assertEqual
+              (decodeString responseDecoder response)
+              (Ok
+                [ { id = 5, name = "foo", stars = 42 }
+                , { id = 3, name = "bar", stars = 77 }
+                ]
+              )
+    ]

part13/part12/test/elm-package.json

@@ -0,0 +1,21 @@
+{
+    "version": "1.0.0",
+    "summary": "Like GitHub, but for Elm stuff.",
+    "repository": "https://github.com/rtfeldman/elm-workshop.git",
+    "license": "BSD-3-Clause",
+    "source-directories": [
+        ".",
+        ".."
+    ],
+    "exposed-modules": [],
+    "dependencies": {
+        "deadfoxygrandpa/elm-test": "3.1.1 <= v < 4.0.0",
+        "elm-lang/core": "3.0.0 <= v < 4.0.0",
+        "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
+        "evancz/elm-html": "4.0.0 <= v < 5.0.0",
+        "evancz/elm-http": "3.0.0 <= v < 4.0.0",
+        "evancz/start-app": "2.0.0 <= v < 3.0.0",
+        "laszlopandy/elm-console": "1.0.3 <= v < 2.0.0"
+    },
+    "elm-version": "0.16.0 <= v < 0.17.0"
+}

part7/ElmHub.elm

@@ -1,35 +1,32 @@
 module ElmHub (..) where
 
+import Auth
 import Html exposing (..)
-import Html.Attributes exposing (..)
+import Html.Attributes exposing (class, target, href, property)
 import Html.Events exposing (..)
 import Http
-import Auth
 import Task exposing (Task)
 import Effects exposing (Effects)
 import Json.Decode exposing (Decoder, (:=))
+import Json.Decode.Pipeline exposing (..)
 import Json.Encode
 import Signal exposing (Address)
 
 
-searchFeed : Address String -> String -> Task x Action
-searchFeed address query =
+searchFeed : String -> Task x Action
+searchFeed query =
   let
-    -- See https://developer.github.com/v3/search/#example for how to customize!
     url =
       "https://api.github.com/search/repositories?access_token="
         ++ Auth.token
         ++ "&q="
         ++ query
         ++ "+language:elm&sort=stars&order=desc"
-
-    -- These only talk to JavaScript ports now. They don't
-    -- actually do any actions themselves.
-    task =
-      Signal.send address query
-        |> Task.map (\_ -> DoNothing)
   in
-    Task.onError task (\_ -> Task.succeed DoNothing)
+    performAction
+      (\response -> HandleSearchResponse response)
+      (\error -> HandleSearchError error)
+      (Http.get responseDecoder url)
 
 
 responseDecoder : Decoder (List SearchResult)
@@ -39,16 +36,27 @@ responseDecoder =
 
 searchResultDecoder : Decoder SearchResult
 searchResultDecoder =
-  Json.Decode.object3
-    SearchResult
-    ("id" := Json.Decode.int)
-    ("full_name" := Json.Decode.string)
-    ("stargazers_count" := Json.Decode.int)
+  decode SearchResult
+    |> required "id" Json.Decode.int
+    |> required "full_name" Json.Decode.string
+    |> required "stargazers_count" Json.Decode.int
+
+
+{-| Note: this will be a standard function in Elm 0.17
+-}
+performAction : (a -> b) -> (y -> b) -> Task y a -> Task x b
+performAction successToAction errorToAction task =
+  let
+    successTask =
+      Task.map successToAction task
+  in
+    Task.onError successTask (\err -> Task.succeed (errorToAction err))
 
 
 type alias Model =
   { query : String
   , results : List SearchResult
+  , errorMessage : String
   }
 
 
@@ -67,6 +75,7 @@ initialModel : Model
 initialModel =
   { query = "tutorial"
   , results = []
+  , errorMessage = ""
   }
 
 
@@ -113,26 +122,30 @@ type Action
   = Search
   | SetQuery String
   | DeleteById ResultId
-  | SetResults (List SearchResult)
-  | DoNothing
+  | HandleSearchResponse (List SearchResult)
+  | HandleSearchError Http.Error
 
 
-update : Address String -> Action -> Model -> ( Model, Effects Action )
-update searchAddress action model =
+update : Action -> Model -> ( Model, Effects Action )
+update action model =
   case action of
     Search ->
-      ( model, Effects.task (searchFeed searchAddress model.query) )
+      ( model, Effects.task (searchFeed model.query) )
+
+    HandleSearchResponse response ->
+      -- TODO update the model to incorporate these search results.
+      -- Hint: where would you look to find out the type of `response` here?
+      ( model, Effects.none )
+
+    HandleSearchError error ->
+      -- TODO if decoding failed, store the message in model.errorMessage
+      -- Hint: look for "decode" in the documentation for this union type:
+      -- http://package.elm-lang.org/packages/evancz/elm-http/3.0.0/Http#Error
+      ( model, Effects.none )
 
     SetQuery query ->
       ( { model | query = query }, Effects.none )
 
-    SetResults results ->
-      let
-        newModel =
-          { model | results = results }
-      in
-        ( newModel, Effects.none )
-
     DeleteById idToHide ->
       let
         newResults =
@@ -143,6 +156,3 @@ update searchAddress action model =
           { model | results = newResults }
       in
         ( newModel, Effects.none )
-
-    DoNothing ->
-      ( model, Effects.none )

part7/Main.elm

@@ -5,9 +5,6 @@ import ElmHub exposing (..)
 import Effects exposing (Effects)
 import Task exposing (Task)
 import Html exposing (Html)
-import Signal
-import Json.Encode
-import Json.Decode
 
 
 main : Signal Html
@@ -19,40 +16,12 @@ app : StartApp.App Model
 app =
   StartApp.start
     { view = view
-    , update = update search.address
-    , init = ( initialModel, Effects.task (searchFeed search.address initialModel.query) )
-    , inputs = [ responseActions ]
+    , update = update
+    , init = ( initialModel, Effects.task (searchFeed initialModel.query) )
+    , inputs = []
     }
 
 
 port tasks : Signal (Task Effects.Never ())
 port tasks =
   app.tasks
-
-
-search : Signal.Mailbox String
-search =
-  Signal.mailbox ""
-
-
-port githubSearch : Signal String
-port githubSearch =
-  search.signal
-
-
-responseActions : Signal Action
-responseActions =
-  Signal.map decodeGithubResponse githubResponse
-
-
-decodeGithubResponse : Json.Encode.Value -> Action
-decodeGithubResponse value =
-  case Json.Decode.decodeValue responseDecoder value of
-    Ok results ->
-      SetResults results
-
-    Err _ ->
-      DoNothing
-
-
-port githubResponse : Signal Json.Encode.Value

part7/README.md

@@ -1,4 +1,4 @@
-Part 7
+Part 6
 ======
 
 ## Installation
@@ -16,10 +16,9 @@ to fail; in that case, just run `elm package install` again.)
 elm live Main.elm --open -- --output=elm.js
 ```
 
-## Running Tests
+## References
 
-```bash
-cd test
-elm package install
-elm test TestRunner.elm
-```
+* [HTTP Tasks tutorial](http://elm-lang.org/guide/reactivity#http-tasks)
+* [HTTP Error documentation](http://package.elm-lang.org/packages/evancz/elm-http/3.0.0/Http#Error)
+* [Modules syntax reference](http://elm-lang.org/docs/syntax#modules)
+* [Syntax reference for **case-expressions** and **if-expressions**](http://elm-lang.org/docs/syntax#conditionals)

part7/elm-package.json

@@ -4,10 +4,12 @@
     "repository": "https://github.com/rtfeldman/elm-workshop.git",
     "license": "BSD-3-Clause",
     "source-directories": [
-        ".", ".."
+        ".",
+        ".."
     ],
     "exposed-modules": [],
     "dependencies": {
+        "NoRedInk/elm-decode-pipeline": "1.0.0 <= v < 2.0.0",
         "elm-lang/core": "3.0.0 <= v < 4.0.0",
         "evancz/elm-effects": "2.0.0 <= v < 3.0.0",
         "evancz/elm-html": "4.0.0 <= v < 5.0.0",

part7/index.html

@@ -4,37 +4,23 @@
 <head>
   <meta charset="UTF-8">
   <title>ElmHub</title>
-  <script type="text/javascript" src="github.js"></script>
   <script type="text/javascript" src="elm.js"></script>
+
+  <!-- Uncomment the below line to enable elm-reactor support. -->
+  <!-- <script type="text/javascript" src="/_reactor/debug.js"></script> -->
+
   <link rel="stylesheet" href="style.css">
   <link rel="icon" type="image/png" href="elm-hub.png">
 </head>
 
 <body>
-  <div id="elm-landing-pad"></div>
 </body>
 
 <script type="text/javascript">
-  // documentation: https://github.com/michael/github
-  var github = new Github();
+  var app = Elm.fullscreen(Elm.Main, {});
 
-  var app = Elm.embed(
-    Elm.Main,
-    document.getElementById("elm-landing-pad"),
-    {githubResponse: []});
-
-  function searchGithub(query) {
-    console.log("Searching for", query);
-    var search = github.getSearch(query);
-
-    search.repositories({}, function (err, repositories) {
-      console.log("Got response", repositories);
-
-      // TODO: app.ports.portNameGoesHere.send(repositories);
-    });
-  }
-
-  // TODO app.ports.portNameGoesHere.subscribe(searchGithub);
+  // Uncomment this line and comment out the above to enable elm-reactor support.
+  // var app = Elm.fullscreenDebug("ElmHub", "Main.elm");
 </script>
 
 </html>

part7/test/Tests.elm

@@ -16,13 +16,12 @@ all =
            in
             assertEqual
               (decodeString responseDecoder emptyResponse)
-              (Ok [])
+              ({- TODO: what goes here? -})
     , test "they can decode responses with results in them"
         <| let
             response =
               """{ "items": [
-                { "id": 5, "full_name": "foo", "stargazers_count": 42 },
-                { "id": 3, "full_name": "bar", "stargazers_count": 77 }
+                      /* TODO: dummy JSON goes here */
               ] }"""
            in
             assertEqual

part8/ElmHub.elm

@@ -10,11 +10,10 @@ import Effects exposing (Effects)
 import Json.Decode exposing (Decoder, (:=))
 import Json.Encode
 import Signal exposing (Address)
-import Dict exposing (Dict)
 
 
-searchFeed : String -> Task x Action
-searchFeed query =
+searchFeed : Address String -> String -> Task x Action
+searchFeed address query =
   let
     -- See https://developer.github.com/v3/search/#example for how to customize!
     url =
@@ -24,11 +23,13 @@ searchFeed query =
         ++ query
         ++ "+language:elm&sort=stars&order=desc"
 
+    -- These only talk to JavaScript ports now. They don't
+    -- actually do any actions themselves.
     task =
-      Http.get responseDecoder url
-        |> Task.map SetResults
+      Signal.send address query
+        |> Task.map (\_ -> DoNothing)
   in
-    Task.onError task (\_ -> Task.succeed (SetResults []))
+    Task.onError task (\_ -> Task.succeed DoNothing)
 
 
 responseDecoder : Decoder (List SearchResult)
@@ -47,7 +48,7 @@ searchResultDecoder =
 
 type alias Model =
   { query : String
-  , results : Dict ResultId SearchResult
+  , results : List SearchResult
   }
 
 
@@ -65,7 +66,7 @@ type alias ResultId =
 initialModel : Model
 initialModel =
   { query = "tutorial"
-  , results = Dict.empty
+  , results = []
   }
 
 
@@ -82,16 +83,10 @@ view address model =
     , button [ class "search-button", onClick address Search ] [ text "Search" ]
     , ul
         [ class "results" ]
-        (viewSearchResults address model.results)
+        (List.map (viewSearchResult address) model.results)
     ]
 
 
-viewSearchResults : Address Action -> Dict ResultId SearchResult -> List Html
-viewSearchResults address results =
-  -- TODO sort by star count and render
-  []
-
-
 onInput address wrap =
   on "input" targetValue (\val -> Signal.message address (wrap val))
 
@@ -119,26 +114,35 @@ type Action
   | SetQuery String
   | DeleteById ResultId
   | SetResults (List SearchResult)
+  | DoNothing
 
 
-update : Action -> Model -> ( Model, Effects Action )
-update action model =
+update : Address String -> Action -> Model -> ( Model, Effects Action )
+update searchAddress action model =
   case action of
     Search ->
-      ( model, Effects.task (searchFeed model.query) )
+      ( model, Effects.task (searchFeed searchAddress model.query) )
 
     SetQuery query ->
       ( { model | query = query }, Effects.none )
 
     SetResults results ->
       let
-        resultsById : Dict ResultId SearchResult
-        resultsById =
-          -- TODO convert results list into a Dict
-          Dict.empty
+        newModel =
+          { model | results = results }
       in
-        ( { model | results = resultsById }, Effects.none )
+        ( newModel, Effects.none )
 
-    DeleteById id ->
-      -- TODO delete the result with the given id
+    DeleteById idToHide ->
+      let
+        newResults =
+          model.results
+            |> List.filter (\{ id } -> id /= idToHide)
+
+        newModel =
+          { model | results = newResults }
+      in
+        ( newModel, Effects.none )
+
+    DoNothing ->
       ( model, Effects.none )

part8/Main.elm

@@ -5,6 +5,9 @@ import ElmHub exposing (..)
 import Effects exposing (Effects)
 import Task exposing (Task)
 import Html exposing (Html)
+import Signal
+import Json.Encode
+import Json.Decode
 
 
 main : Signal Html
@@ -16,12 +19,40 @@ app : StartApp.App Model
 app =
   StartApp.start
     { view = view
-    , update = update
-    , init = ( initialModel, Effects.task (searchFeed initialModel.query) )
-    , inputs = []
+    , update = update search.address
+    , init = ( initialModel, Effects.task (searchFeed search.address initialModel.query) )
+    , inputs = [ responseActions ]
     }
 
 
 port tasks : Signal (Task Effects.Never ())
 port tasks =
   app.tasks
+
+
+search : Signal.Mailbox String
+search =
+  Signal.mailbox ""
+
+
+port githubSearch : Signal String
+port githubSearch =
+  search.signal
+
+
+responseActions : Signal Action
+responseActions =
+  Signal.map decodeGithubResponse githubResponse
+
+
+decodeGithubResponse : Json.Encode.Value -> Action
+decodeGithubResponse value =
+  case Json.Decode.decodeValue responseDecoder value of
+    Ok results ->
+      SetResults results
+
+    Err _ ->
+      DoNothing
+
+
+port githubResponse : Signal Json.Encode.Value

part8/README.md

@@ -1,4 +1,4 @@
-Part 8
+Part 7
 ======
 
 ## Installation
@@ -15,3 +15,11 @@ to fail; in that case, just run `elm package install` again.)
 ```bash
 elm live Main.elm --open -- --output=elm.js
 ```
+
+## Running Tests
+
+```bash
+cd test
+elm package install
+elm test TestRunner.elm
+```

part8/index.html

@@ -4,23 +4,37 @@
 <head>
   <meta charset="UTF-8">
   <title>ElmHub</title>
+  <script type="text/javascript" src="github.js"></script>
   <script type="text/javascript" src="elm.js"></script>
-
-  <!-- Uncomment the below line to enable elm-reactor support. -->
-  <!-- <script type="text/javascript" src="/_reactor/debug.js"></script> -->
-
   <link rel="stylesheet" href="style.css">
   <link rel="icon" type="image/png" href="elm-hub.png">
 </head>
 
 <body>
+  <div id="elm-landing-pad"></div>
 </body>
 
 <script type="text/javascript">
-  var app = Elm.fullscreen(Elm.Main, {});
+  // documentation: https://github.com/michael/github
+  var github = new Github();
 
-  // Uncomment this line and comment out the above to enable elm-reactor support.
-  // var app = Elm.fullscreenDebug("ElmHub", "Main.elm");
+  var app = Elm.embed(
+    Elm.Main,
+    document.getElementById("elm-landing-pad"),
+    {githubResponse: []});
+
+  function searchGithub(query) {
+    console.log("Searching for", query);
+    var search = github.getSearch(query);
+
+    search.repositories({}, function (err, repositories) {
+      console.log("Got response", repositories);
+
+      // TODO: app.ports.portNameGoesHere.send(repositories);
+    });
+  }
+
+  // TODO app.ports.portNameGoesHere.subscribe(searchGithub);
 </script>
 
 </html>

part9/ElmHub.elm

@@ -3,7 +3,6 @@ module ElmHub (..) where
 import Html exposing (..)
 import Html.Attributes exposing (..)
 import Html.Events exposing (..)
-import Html.Lazy exposing (..)
 import Http
 import Auth
 import Task exposing (Task)
@@ -12,7 +11,6 @@ import Json.Decode exposing (Decoder, (:=))
 import Json.Encode
 import Signal exposing (Address)
 import Dict exposing (Dict)
-import SearchResult
 
 
 searchFeed : String -> Task x Action
@@ -33,18 +31,37 @@ searchFeed query =
     Task.onError task (\_ -> Task.succeed (SetResults []))
 
 
-responseDecoder : Decoder (List SearchResult.Model)
+responseDecoder : Decoder (List SearchResult)
 responseDecoder =
-  -- TODO make use of SearchResult's decoder
-  Json.Decode.succeed []
+  "items" := Json.Decode.list searchResultDecoder
+
+
+searchResultDecoder : Decoder SearchResult
+searchResultDecoder =
+  Json.Decode.object3
+    SearchResult
+    ("id" := Json.Decode.int)
+    ("full_name" := Json.Decode.string)
+    ("stargazers_count" := Json.Decode.int)
 
 
 type alias Model =
   { query : String
-  , results : Dict SearchResult.ResultId SearchResult.Model
+  , results : Dict ResultId SearchResult
   }
 
 
+type alias SearchResult =
+  { id : ResultId
+  , name : String
+  , stars : Int
+  }
+
+
+type alias ResultId =
+  Int
+
+
 initialModel : Model
 initialModel =
   { query = "tutorial"
@@ -69,12 +86,10 @@ view address model =
     ]
 
 
-viewSearchResults : Address Action -> Dict SearchResult.ResultId SearchResult.Model -> List Html
+viewSearchResults : Address Action -> Dict ResultId SearchResult -> List Html
 viewSearchResults address results =
-  results
-    |> Dict.values
-    |> List.sortBy (.stars >> negate)
-    |> List.map (\_ -> div [] [ text "TODO replace this line with view logic from SearchResult" ])
+  -- TODO sort by star count and render
+  []
 
 
 onInput address wrap =
@@ -85,11 +100,25 @@ defaultValue str =
   property "defaultValue" (Json.Encode.string str)
 
 
+viewSearchResult : Address Action -> SearchResult -> Html
+viewSearchResult address result =
+  li
+    []
+    [ span [ class "star-count" ] [ text (toString result.stars) ]
+    , a
+        [ href ("https://github.com/" ++ result.name), target "_blank" ]
+        [ text result.name ]
+    , button
+        [ class "hide-result", onClick address (DeleteById result.id) ]
+        [ text "X" ]
+    ]
+
+
 type Action
   = Search
   | SetQuery String
-  | DeleteById SearchResult.ResultId
-  | SetResults (List SearchResult.Model)
+  | DeleteById ResultId
+  | SetResults (List SearchResult)
 
 
 update : Action -> Model -> ( Model, Effects Action )
@@ -103,17 +132,13 @@ update action model =
 
     SetResults results ->
       let
-        resultsById : Dict SearchResult.ResultId SearchResult.Model
+        resultsById : Dict ResultId SearchResult
         resultsById =
-          results
-            |> List.map (\result -> ( result.id, result ))
-            |> Dict.fromList
+          -- TODO convert results list into a Dict
+          Dict.empty
       in
         ( { model | results = resultsById }, Effects.none )
 
     DeleteById id ->
-      let
-        newModel =
-          { model | results = Dict.remove id model.results }
-      in
-        ( newModel, Effects.none )
+      -- TODO delete the result with the given id
+      ( model, Effects.none )

part9/README.md

@@ -1,4 +1,4 @@
-Part 9
+Part 8
 ======
 
 ## Installation