Rename Tasks to Items and fix schema

App.cabal

@@ -7,14 +7,14 @@
 -- This cabal file is inside your project as some haskell tools only work when there's a cabal file. It's not actually used for anything besides providing support for haskell tools.
 --
 
-name:                App
+name:                CompareWare
 version:             0.1.0.0
 -- synopsis:
 -- description:
-license:             AllRightsReserved
+license:             GNU GPLv3
 license-file:        LICENSE
-author:              Developers
-maintainer:          developers@example.com
+author:              CompareWare Developers
+maintainer:          hello@compareware.org
 -- copyright:
 -- category:
 build-type:          Simple
@@ -25,10 +25,12 @@ executable App
   -- other-modules:
   -- other-extensions:
   build-depends:
-  	ihp,
-  	base,
-  	wai,
-    text
+    ihp
+    , base
+    , wai
+    , text
+    , http-conduit
+    , aeson
   hs-source-dirs:      .
   default-language:    Haskell2010
   extensions:
@@ -68,4 +70,4 @@ executable App
     , FunctionalDependencies
     , PartialTypeSignatures
     , StandaloneDeriving
-    , DerivingVia
+    , DerivingVia

Application/Migration/1681641158.sql

@@ -1,11 +1,11 @@
-CREATE TABLE tasks (
+CREATE TABLE items (
     id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
     description TEXT NOT NULL
 );
 CREATE TABLE tags (
     id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
     name TEXT NOT NULL,
-    task_id UUID NOT NULL
+    item_id UUID NOT NULL
 );
-CREATE INDEX tags_task_id_index ON tags (task_id);
-ALTER TABLE tags ADD CONSTRAINT tags_ref_task_id FOREIGN KEY (task_id) REFERENCES tasks (id) ON DELETE NO ACTION;
+CREATE INDEX tags_item_id_index ON tags (item_id);
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE NO ACTION;

Application/Migration/1712850010.sql

@@ -0,0 +1,21 @@
+ALTER TABLE tags DROP COLUMN item_id;
+ALTER TABLE tags ADD COLUMN item_id TEXT NOT NULL;
+ALTER TABLE tags ADD COLUMN created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL;
+ALTER TABLE tags ADD COLUMN updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL;
+DROP TABLE items;
+CREATE FUNCTION set_updated_at_to_now() RETURNS TRIGGER AS $$BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;$$ language PLPGSQL;
+CREATE TABLE items (
+    wikidataid TEXT NOT NULL,
+    description TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+CREATE INDEX tags_item_id_index ON tags (item_id);
+CREATE INDEX tags_created_at_index ON tags (created_at);
+CREATE TRIGGER update_tags_updated_at BEFORE UPDATE ON tags FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+CREATE INDEX items_created_at_index ON items (created_at);
+CREATE TRIGGER update_items_updated_at BEFORE UPDATE ON items FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;

Application/Migration/1712850049.sql

@@ -0,0 +1,17 @@
+
+CREATE FUNCTION set_updated_at_to_now() RETURNS TRIGGER AS $$BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;$$ language PLPGSQL;
+CREATE TABLE items (
+    wikidataid TEXT NOT NULL,
+    description TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT now() NOT NULL
+);
+CREATE INDEX tags_item_id_index ON tags (item_id);
+CREATE INDEX tags_created_at_index ON tags (created_at);
+CREATE TRIGGER update_tags_updated_at BEFORE UPDATE ON tags FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+CREATE INDEX items_created_at_index ON items (created_at);
+CREATE TRIGGER update_items_updated_at BEFORE UPDATE ON items FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;

Application/Migration/1712850449.sql

@@ -0,0 +1 @@
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;

Application/Migration/1712850495.sql

@@ -0,0 +1 @@
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (wikidata_id) ON DELETE CASCADE;

Application/Migration/1712850525.sql

@@ -0,0 +1,2 @@
+ALTER TABLE items ADD CONSTRAINT items_wikidata_id_key UNIQUE(wikidata_id);
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (wikidata_id) ON DELETE CASCADE;

Application/Migration/1712851742.sql

@@ -0,0 +1,4 @@
+ALTER TABLE items ADD COLUMN id UUID DEFAULT uuid_generate_v4() NOT NULL;
+ALTER TABLE tags DROP COLUMN item_id;
+ALTER TABLE tags ADD COLUMN item_id UUID NOT NULL;
+ALTER TABLE items ADD CONSTRAINT items_wikidata_id_key UNIQUE(wikidata_id);

Application/Migration/1712852503.sql

@@ -0,0 +1,2 @@
+CREATE INDEX tags_item_id_index ON tags (item_id);
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;

Application/Migration/1712852577.sql

@@ -0,0 +1 @@
+ALTER TABLE items ALTER COLUMN description SET DEFAULT '';

Application/Schema.sql

@@ -1,13 +1,28 @@
+CREATE FUNCTION set_updated_at_to_now() RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = NOW();
+    RETURN NEW;
+END;
+$$ language plpgsql;
 -- Your database schema. Use the Schema Designer at http://localhost:8001/ to add some tables.
-CREATE TABLE tasks (
+CREATE TABLE items (
     id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
-    description TEXT NOT NULL
+    wikidata_id TEXT NOT NULL UNIQUE,
+    description TEXT DEFAULT '' NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL
 );
 CREATE TABLE tags (
     id UUID DEFAULT uuid_generate_v4() PRIMARY KEY NOT NULL,
+    item_id UUID NOT NULL,
     name TEXT NOT NULL,
-    task_id UUID NOT NULL,
-    value TEXT NOT NULL
+    value TEXT NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW() NOT NULL
 );
-CREATE INDEX tags_task_id_index ON tags (task_id);
-ALTER TABLE tags ADD CONSTRAINT tags_ref_task_id FOREIGN KEY (task_id) REFERENCES tasks (id) ON DELETE NO ACTION;
+CREATE INDEX tags_item_id_index ON tags (item_id);
+CREATE INDEX tags_created_at_index ON tags (created_at);
+CREATE TRIGGER update_tags_updated_at BEFORE UPDATE ON tags FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+CREATE INDEX items_created_at_index ON items (created_at);
+CREATE TRIGGER update_items_updated_at BEFORE UPDATE ON items FOR EACH ROW EXECUTE FUNCTION set_updated_at_to_now();
+ALTER TABLE tags ADD CONSTRAINT tags_ref_item_id FOREIGN KEY (item_id) REFERENCES items (id) ON DELETE CASCADE;

README.md

@@ -1,5 +1,8 @@
 # [CompareWare](https://compareware.org)
 
+This application is still a prototype,
+with only a landing page publicly available thus far.
+
 ## Use-Cases
 - Authorised users can create `Items`: Working, no authorisations
 - `Items` can have `Tags`: Implemented
@@ -26,11 +29,9 @@ and normalizes the schema.
 
 ![CompareWare Overview Entity Relationship Diagram](compareware-erd.png)
 
-Of course, every many-to-many relationship needs another table
-to be represented in a normalized well,
-which the diagram of the actual structure used in the code illustrates:
-
-TODO
+For a fully normalized and implementable view,
+every many-to-many relationship needs another table
+which will be visible in a diagram generated from the [schema](./Application/Schema.sql).
 
 ## Developer Setup
 
@@ -38,3 +39,6 @@ TODO
 direnv allow
 devenv up
 ```
+
+Open up http://localhost:8000 and you can create,
+edit and delete items with key-value tags.

Web/Controller/Items.hs

@@ -0,0 +1,183 @@
+{-# LANGUAGE OverloadedStrings #-}
+module Web.Controller.Items where
+
+import Data.Aeson
+import Data.Text (Text)
+import Network.HTTP.Simple (httpJSON, getResponseBody, parseRequest)
+import Control.Monad.IO.Class (liftIO)
+
+import Web.Controller.Prelude
+import Web.View.Items.Index
+import Web.View.Items.New
+import Web.View.Items.Edit
+import Web.View.Items.Show
+
+
+instance Controller ItemsController where
+    action ItemsAction = do
+        items <- query @Item |> fetch
+                >>= collectionFetchRelated #tags
+        render IndexView { .. }
+
+    action NewItemAction = do
+        let tags = [newRecord @Tag, newRecord @Tag]
+        let item = newRecord @Item
+                |> updateField @"tags" tags
+        render NewView { .. }
+
+    action ShowItemAction { itemId } = do
+        item <- fetch itemId
+        render ShowView { .. }
+
+    action EditItemAction { itemId } = do
+        item <- fetch itemId
+                >>= fetchRelated #tags
+        render EditView { .. }
+
+    action UpdateItemAction { itemId } = do
+        item <- fetch itemId
+
+        let tagIds :: [Id Tag] = paramList "tags_id"
+        let tagNames :: [Text] = paramList "tags_name"
+        let tagValues :: [Text] = paramList "tags_value"
+        originalTags <- fetch tagIds
+        let tags = zip3 tagIds tagNames tagValues
+                |> map (\(id, name, value) -> originalTags
+                    |> find (\tag -> tag.id == id)
+                    |> fromMaybe (newRecord |> set #itemId item.id)
+                    |> \tag -> buildTag tag name value
+                )
+
+        item
+            |> buildItem
+            |> updateField @"tags" tags
+            |> bubbleValidationResult #tags
+            |> ifValid \case
+                Left item -> do
+                    render EditView { item }
+                Right item -> do
+                    (item, tags) <- withTransaction do
+                        item <- item
+                                |> clearTags
+                                |> updateRecord
+                        tags <- mapM updateOrCreateRecord tags
+                        pure (item, tags)
+
+                    setSuccessMessage "Item updated"
+                    redirectTo EditItemAction { .. }
+
+    action CreateItemAction = do
+        let item = newRecord @Item
+        let names :: [Text] = paramList "tags_name"
+        let values :: [Text] = paramList "tags_value"
+        let tags = zip names values |> map (\(name, value) -> buildTag newRecord name value)
+
+        -- users <- fetchItems -- Assuming this is your function that returns [User]
+        -- liftIO $ print users
+        -- renderPlain "Check your console!"
+
+        item
+            |> buildItem
+            |> updateField @"tags" tags
+            |> bubbleValidationResult #tags
+            |> ifValid \case
+                Left item -> render NewView { item }
+                Right itemAndTags -> do
+                    (item, tags) <- withTransaction do
+                        item <- itemAndTags |> clearTags |> createRecord
+                        tags <- itemAndTags.tags
+                            |> map (set #itemId item.id)
+                            |> createMany
+
+                        pure (item, tags)
+                    
+                    setSuccessMessage "Item and Tags created"
+                    redirectTo ItemsAction
+
+    action DeleteItemAction { itemId } = do
+        item <- fetch itemId
+        deleteRecord item
+        setSuccessMessage "Item deleted"
+        redirectTo ItemsAction
+
+buildItem item = item
+    |> fill @'["description"]
+    |> fill @'["wikidataId"]
+    |> validateField #wikidataId nonEmpty
+
+buildTag :: Tag -> Text -> Text -> Tag
+buildTag tag name value = tag
+    |> set #name name
+    |> set #value value
+    |> validateField #name nonEmpty
+
+-- | Adds a validation error to the record when any of the child records is invalid
+bubbleValidationResult :: forall fieldName record childRecord.
+    ( HasField "meta" record MetaBag
+    , SetField "meta" record MetaBag
+    , KnownSymbol fieldName
+    , HasField fieldName record [childRecord]
+    , HasField "meta" childRecord MetaBag
+    , SetField "meta" childRecord MetaBag
+    ) => Proxy fieldName -> record -> record
+bubbleValidationResult field record =
+        if isEmpty childAnnotations
+            then record
+            else record |> attachFailure field "Invalid records"
+    where
+        childAnnotations :: [(Text, Violation)]
+        childAnnotations = get field record
+            |> map (\record -> record.meta.annotations)
+            |> concat
+
+updateOrCreateRecord record | isNew record = createRecord record
+updateOrCreateRecord record = updateRecord record
+
+clearTags :: Include "tags" Item -> Item
+clearTags item = updateField @"tags" (newRecord @Item).tags item
+
+
+-- data ApiResponse = ApiResponse
+--     { users :: [Item] }
+--
+-- instance FromJSON Item where
+--     parseJSON = withObject "Item" $ \v -> do
+--         let item = newRecord @Item
+--         name <- v .: "name"
+--         -- address <- v .: "address"
+--         -- city <- address .: "city"
+--         newRecord @Item
+--               |> set #description name
+--
+-- instance FromJSON ApiResponse where
+--     parseJSON = withObject "ApiResponse" $ \v -> ApiResponse
+--         <$> v .: "users"
+
+-- Example function to fetch and parse JSON
+-- fetchItems :: [Item]
+-- fetchItems = do
+--     request <- parseRequest "GET https://www.wikidata.org/w/api.php?action=wbgetentities&ids=Q19675&languages=en&format=json" -- http://localhost:8000/Q19675.json
+--     response <- httpJSON request
+--     jsonData <- getResponseBody response
+--     let maybeValue = decodeStrict (cs jsonData) :: Maybe Value
+--     -- let apiResponse = getResponseBody response :: ApiResponse
+--     -- users apiResponse
+--     case maybeValue of
+--         Just value -> do
+--             case extractItemFromJson value of
+--                 Just item -> do
+--                     item <- item |> createRecord
+--                     redirectTo ShowItemAction { itemId = get #id item }
+--                 Nothing -> renderPlain "Failed to extract Item data from JSON"
+--         Nothing -> renderPlain "Failed to parse JSON data"
+--
+--
+-- extractItemFromJson :: Value -> Maybe Item
+-- extractItemFromJson value = do
+--     object <- case value of
+--         Object obj -> Just obj
+--         _ -> Nothing
+--     itemId <- object .: "itemId"
+--     itemName <- object .: "itemName" >>= parseJSON
+--
+--     pure Item { id = itemId, description = itemName }

Web/Controller/Tasks.hs

@@ -1,125 +0,0 @@
-module Web.Controller.Tasks where
-
-import Web.Controller.Prelude
-import Web.View.Tasks.Index
-import Web.View.Tasks.New
-import Web.View.Tasks.Edit
-import Web.View.Tasks.Show
-
-instance Controller TasksController where
-    action TasksAction = do
-        tasks <- query @Task |> fetch
-                >>= collectionFetchRelated #tags
-        render IndexView { .. }
-
-    action NewTaskAction = do
-        let tags = [newRecord @Tag, newRecord @Tag]
-        let task = newRecord @Task
-                |> updateField @"tags" tags
-        render NewView { .. }
-
-    action ShowTaskAction { taskId } = do
-        task <- fetch taskId
-        render ShowView { .. }
-
-    action EditTaskAction { taskId } = do
-        task <- fetch taskId
-                >>= fetchRelated #tags
-        render EditView { .. }
-
-    action UpdateTaskAction { taskId } = do
-        task <- fetch taskId
-
-        let tagIds :: [Id Tag] = paramList "tags_id"
-        let tagNames :: [Text] = paramList "tags_name"
-        let tagValues :: [Text] = paramList "tags_value"
-        originalTags <- fetch tagIds
-        let tags = zip3 tagIds tagNames tagValues
-                |> map (\(id, name, value) -> originalTags
-                    |> find (\tag -> tag.id == id)
-                    |> fromMaybe (newRecord |> set #taskId task.id)
-                    |> \tag -> buildTag tag name value
-                )
-
-        task
-            |> buildTask
-            |> updateField @"tags" tags
-            |> bubbleValidationResult #tags
-            |> ifValid \case
-                Left task -> do
-                    render EditView { task }
-                Right task -> do
-                    (task, tags) <- withTransaction do
-                        task <- task
-                                |> clearTags
-                                |> updateRecord
-                        tags <- mapM updateOrCreateRecord tags
-                        pure (task, tags)
-
-                    setSuccessMessage "Task updated"
-                    redirectTo EditTaskAction { .. }
-
-    action CreateTaskAction = do
-        let task = newRecord @Task
-        let names :: [Text] = paramList "tags_name"
-        let values :: [Text] = paramList "tags_value"
-        let tags = zip names values |> map (\(name, value) -> buildTag newRecord name value)
-
-        task
-            |> buildTask
-            |> updateField @"tags" tags
-            |> bubbleValidationResult #tags
-            |> ifValid \case
-                Left task -> render NewView { task }
-                Right taskAndTags -> do
-                    (task, tags) <- withTransaction do
-                        task <- taskAndTags |> clearTags |> createRecord
-                        tags <- taskAndTags.tags
-                            |> map (set #taskId task.id)
-                            |> createMany
-
-                        pure (task, tags)
-                    
-                    setSuccessMessage "Task and Tags created"
-                    redirectTo TasksAction
-
-    action DeleteTaskAction { taskId } = do
-        task <- fetch taskId
-        deleteRecord task
-        setSuccessMessage "Task deleted"
-        redirectTo TasksAction
-
-buildTask task = task
-    |> fill @'["description"]
-    |> validateField #description nonEmpty
-
-buildTag :: Tag -> Text -> Text -> Tag
-buildTag tag name value = tag
-    |> set #name name
-    |> set #value value
-    |> validateField #name nonEmpty
-
--- | Adds a validation error to the record when any of the child records is invalid
-bubbleValidationResult :: forall fieldName record childRecord.
-    ( HasField "meta" record MetaBag
-    , SetField "meta" record MetaBag
-    , KnownSymbol fieldName
-    , HasField fieldName record [childRecord]
-    , HasField "meta" childRecord MetaBag
-    , SetField "meta" childRecord MetaBag
-    ) => Proxy fieldName -> record -> record
-bubbleValidationResult field record =
-        if isEmpty childAnnotations
-            then record
-            else record |> attachFailure field "Invalid records"
-    where
-        childAnnotations :: [(Text, Violation)]
-        childAnnotations = get field record
-            |> map (\record -> record.meta.annotations)
-            |> concat
-
-updateOrCreateRecord record | isNew record = createRecord record
-updateOrCreateRecord record = updateRecord record
-
-clearTags :: Include "tags" Task -> Task
-clearTags task = updateField @"tags" (newRecord @Task).tags task

Web/FrontController.hs

@@ -5,14 +5,14 @@ import Web.Controller.Prelude
 import Web.View.Layout (defaultLayout)
 
 -- Controller Imports
-import Web.Controller.Tasks
+import Web.Controller.Items
 import Web.Controller.Static
 
 instance FrontController WebApplication where
     controllers = 
-        [ startPage TasksAction
+        [ startPage ItemsAction
         -- Generator Marker
-        , parseRoute @TasksController
+        , parseRoute @ItemsController
         ]
 
 instance InitControllerContext WebApplication where

Web/Routes.hs

@@ -5,5 +5,5 @@ import Web.Types
 
 -- Generator Marker
 instance AutoRoute StaticController
-instance AutoRoute TasksController
+instance AutoRoute ItemsController
 

Web/Types.hs

@@ -9,12 +9,12 @@ data WebApplication = WebApplication deriving (Eq, Show)
 
 data StaticController = WelcomeAction deriving (Eq, Show, Data)
 
-data TasksController
-    = TasksAction
-    | NewTaskAction
-    | ShowTaskAction { taskId :: !(Id Task) }
-    | CreateTaskAction
-    | EditTaskAction { taskId :: !(Id Task) }
-    | UpdateTaskAction { taskId :: !(Id Task) }
-    | DeleteTaskAction { taskId :: !(Id Task) }
+data ItemsController
+    = ItemsAction
+    | NewItemAction
+    | ShowItemAction { itemId :: !(Id Item) }
+    | CreateItemAction
+    | EditItemAction { itemId :: !(Id Item) }
+    | UpdateItemAction { itemId :: !(Id Item) }
+    | DeleteItemAction { itemId :: !(Id Item) }
     deriving (Eq, Show, Data)

Web/View/Items/Edit.hs

@@ -0,0 +1,17 @@
+module Web.View.Items.Edit where
+import Web.View.Prelude
+import Web.View.Items.New (renderForm)
+
+data EditView = EditView { item :: Include "tags" Item }
+
+instance View EditView where
+    html EditView { .. } = [hsx|
+        {breadcrumb}
+        <h1>Edit Item</h1>
+        {renderForm item}
+    |]
+        where
+            breadcrumb = renderBreadcrumb
+                [ breadcrumbLink "Items" ItemsAction
+                , breadcrumbText "Edit Item"
+                ]

Web/View/Items/Index.hs

@@ -1,39 +1,39 @@
-module Web.View.Tasks.Index where
+module Web.View.Items.Index where
 import Web.View.Prelude
 
-data IndexView = IndexView { tasks :: [Include "tags" Task]  }
+data IndexView = IndexView { items :: [Include "tags" Item]  }
 
 instance View IndexView where
     html IndexView { .. } = [hsx|
-        <h1>Tasks<a href={pathTo NewTaskAction} class="btn btn-primary ms-4">+ New</a></h1>
+        <h1>Items<a href={pathTo NewItemAction} class="btn btn-primary ms-4">+ New</a></h1>
         <div class="table-responsive">
             <table class="table">
                 <thead>
                     <tr>
-                        <th>Task</th>
+                        <th>Item</th>
                         <th></th>
                         <th></th>
                         <th></th>
                     </tr>
                 </thead>
-                <tbody>{forEach tasks renderTask}</tbody>
+                <tbody>{forEach items renderItem}</tbody>
             </table>
             
         </div>
     |]
         where
             breadcrumb = renderBreadcrumb
-                [ breadcrumbLink "Tasks" TasksAction
+                [ breadcrumbLink "Items" ItemsAction
                 ]
 
-renderTask :: Include "tags" Task -> Html
-renderTask task = [hsx|
+renderItem :: Include "tags" Item -> Html
+renderItem item = [hsx|
     <tr>
-        <td>{task.description}</td>
-        <td>{renderTags task.tags}</td>
-        <td><a href={ShowTaskAction task.id}>Show</a></td>
-        <td><a href={EditTaskAction task.id} class="text-muted">Edit</a></td>
-        <td><a href={DeleteTaskAction task.id} class="js-delete text-muted">Delete</a></td>
+        <td>{item.description}</td>
+        <td>{renderTags item.tags}</td>
+        <td><a href={ShowItemAction item.id}>Show</a></td>
+        <td><a href={EditItemAction item.id} class="text-muted">Edit</a></td>
+        <td><a href={DeleteItemAction item.id} class="js-delete text-muted">Delete</a></td>
     </tr>
 |]
 

Web/View/Items/New.hs

@@ -1,25 +1,26 @@
-module Web.View.Tasks.New where
+module Web.View.Items.New where
 
 import Web.View.Prelude
 import Text.Blaze.Html.Renderer.Text
 
-data NewView = NewView { task :: Include "tags" Task }
+data NewView = NewView { item :: Include "tags" Item }
 
 instance View NewView where
     html NewView { .. } = [hsx|
         {breadcrumb}
-        <h1>New Task</h1>
+        <h1>New Item</h1>
 
-        {renderForm task}
+        {renderForm item}
     |]
         where
             breadcrumb = renderBreadcrumb
-                [ breadcrumbLink "Tasks" TasksAction
-                , breadcrumbText "New Task"
+                [ breadcrumbLink "Items" ItemsAction
+                , breadcrumbText "New Item"
                 ]
 
-renderForm :: Include "tags" Task -> Html
-renderForm task = formFor task [hsx|
+renderForm :: Include "tags" Item -> Html
+renderForm item = formFor item [hsx|
+    {textField #wikidataId}
     {textField #description}
 
     <fieldset>

Web/View/Items/Show.hs

@@ -0,0 +1,17 @@
+module Web.View.Items.Show where
+import Web.View.Prelude
+
+data ShowView = ShowView { item :: Item }
+
+instance View ShowView where
+    html ShowView { .. } = [hsx|
+        {breadcrumb}
+        <h1>Show Item</h1>
+        <p>{item}</p>
+
+    |]
+        where
+            breadcrumb = renderBreadcrumb
+                            [ breadcrumbLink "Items" ItemsAction
+                            , breadcrumbText "Show Item"
+                            ]

Web/View/Tasks/Edit.hs

@@ -1,17 +0,0 @@
-module Web.View.Tasks.Edit where
-import Web.View.Prelude
-import Web.View.Tasks.New (renderForm)
-
-data EditView = EditView { task :: Include "tags" Task }
-
-instance View EditView where
-    html EditView { .. } = [hsx|
-        {breadcrumb}
-        <h1>Edit Task</h1>
-        {renderForm task}
-    |]
-        where
-            breadcrumb = renderBreadcrumb
-                [ breadcrumbLink "Tasks" TasksAction
-                , breadcrumbText "Edit Task"
-                ]

Web/View/Tasks/Show.hs

@@ -1,17 +0,0 @@
-module Web.View.Tasks.Show where
-import Web.View.Prelude
-
-data ShowView = ShowView { task :: Task }
-
-instance View ShowView where
-    html ShowView { .. } = [hsx|
-        {breadcrumb}
-        <h1>Show Task</h1>
-        <p>{task}</p>
-
-    |]
-        where
-            breadcrumb = renderBreadcrumb
-                            [ breadcrumbLink "Tasks" TasksAction
-                            , breadcrumbText "Show Task"
-                            ]

flake.nix

@@ -30,9 +30,11 @@
                         wai
                         text
                         hlint
+                        http-conduit
+                        aeson
                     ];
                 };
             };
 
         };
-}
+}