IMP: task crud (#6)

lib/planner_web/controllers/task_controller.ex

@@ -0,0 +1,82 @@
+defmodule PlannerWeb.TaskController do
+  use PlannerWeb, :controller
+
+  alias Planner.Tasks
+  alias Planner.Tasks.Task
+
+  def index(conn, _params) do
+    tasks = Tasks.list_unfinished_tasks()
+
+    conn
+    |> assign(:tasks, tasks)
+    |> render("index.html")
+  end
+
+  def new(conn, _params) do
+    task = %Task{}
+    changeset = Tasks.change_task(%Task{})
+
+    conn
+    |> assign(:task, task)
+    |> assign(:changeset, changeset)
+    |> render("new.html")
+  end
+
+  def create(conn, %{"task" => task_params}) do
+    case Tasks.add_task(task_params) do
+      {:ok, _task} ->
+        conn
+        |> put_flash(:info, "task created")
+        |> redirect(to: Routes.task_path(conn, :index))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        conn
+        |> assign(:task, %Task{})
+        |> assign(:changeset, changeset)
+        |> render("new.html")
+    end
+  end
+
+  def show(conn, %{"id" => id}) do
+    task = Tasks.get_task!(id)
+
+    conn
+    |> assign(:task, task)
+    |> render("show.html")
+  end
+
+  def edit(conn, %{"id" => id}) do
+    task = Tasks.get_task!(id)
+    changeset = Tasks.change_task(task)
+
+    conn
+    |> assign(:task, task)
+    |> assign(:changeset, changeset)
+    |> render("edit.html")
+  end
+
+  def update(conn, %{"id" => id, "task" => task_params}) do
+    task = Tasks.get_task!(id)
+
+    case Tasks.update_task(task, task_params) do
+      {:ok, _task} ->
+        conn
+        |> put_flash(:info, "task updated")
+        |> redirect(to: Routes.task_path(conn, :index))
+
+      {:error, %Ecto.Changeset{} = changeset} ->
+        conn
+        |> assign(:task, task)
+        |> assign(:changeset, changeset)
+        |> render("edit.html")
+    end
+  end
+
+  def delete(conn, %{"id" => id}) do
+    {:ok, _task} = Tasks.delete_task_by_id!(id)
+
+    conn
+    |> put_flash(:info, "task deleted")
+    |> redirect(to: Routes.task_path(conn, :index))
+  end
+end