feature: allow deletion of all cards in a brainstorming #271

lib/mindwendel/brainstormings.ex

@@ -386,6 +386,13 @@ defmodule Mindwendel.Brainstormings do
     end)
   end
 
+  def empty(%Brainstorming{} = brainstorming) do
+    # we only delete ideas - labels and users should be left intact:
+    Repo.delete_all(from idea in Idea, where: idea.brainstorming_id == ^brainstorming.id)
+
+    broadcast({:ok, brainstorming}, :brainstorming_updated)
+  end
+
   @doc """
   Deletes all brainstormings, older than 30 days since creation
 

lib/mindwendel_web/live/admin/brainstorming_live/edit.ex

@@ -154,6 +154,18 @@ defmodule MindwendelWeb.Admin.BrainstormingLive.Edit do
     end
   end
 
+  def handle_event("empty", %{"value" => brainstorming_admin_url_id}, socket)
+      when brainstorming_admin_url_id == socket.assigns.brainstorming.admin_url_id do
+    brainstorming = socket.assigns.brainstorming
+
+    Brainstormings.empty(brainstorming)
+
+    {:noreply,
+     redirect(socket,
+       to: Routes.brainstorming_show_path(socket, :show, brainstorming)
+     )}
+  end
+
   defp cancel_changeset_timer(socket) do
     if socket.assigns[:reset_changeset_timer_ref],
       do: Process.cancel_timer(socket.assigns.reset_changeset_timer_ref)

lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex

@@ -184,6 +184,31 @@
   </div>
 </div>
 
+<div class="card border-danger mb-3">
+  <div class="card-header">
+    <h4><%= gettext("Empty brainstorming") %></h4>
+  </div>
+  <div class="card-body">
+    <div class="row mb-3">
+      <div class="col">
+        <p>
+          <%= gettext(
+            "Attention: This will delete all ideas in this brainstorming. The brainstorming itself and labels will be left unchanged. This cant be undone."
+          ) %>
+        </p>
+        <button
+          class="btn btn-danger"
+          phx-click="empty"
+          value={@brainstorming.admin_url_id}
+          data-confirm={gettext("Brainstorming will be emptied - are you sure")}
+        >
+          <%= gettext("Empty brainstorming") %>
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+
 <div class="card border-danger mb-3">
   <div class="card-header">
     <h4><%= gettext("Delete Brainstorming") %></h4>

lib/mindwendel_web/router.ex

@@ -44,6 +44,7 @@ defmodule MindwendelWeb.Router do
       delete("/brainstormings/:id", BrainstormingController, :delete)
       get("/brainstormings/:id/export", BrainstormingController, :export)
       live("/brainstormings/:id/edit", BrainstormingLive.Edit, :edit)
+      live("/brainstormings/:id/empty", BrainstormingLive.Edit, :empty)
     end
 
     post("/brainstormings", BrainstormingController, :create)

priv/gettext/de/LC_MESSAGES/default.po

@@ -41,7 +41,7 @@ msgstr "%{name} - Neue Idee"
 msgid "Are you sure you want to delete this idea?"
 msgstr "Möchtest du die Idee löschen?"
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:220
 #, elixir-autogen, elixir-format
 msgid "Attention: This will delete the brainstorming with all belonging ideas and other associated records to it. This cant be undone"
 msgstr "Achtung: Hiermit löschst du das Brainstorming und alle dazugehörigen Ideen. Diese Aktion kann nicht rückgängig gemacht werden."
@@ -67,12 +67,12 @@ msgstr "Erstelle ein Brainstorming."
 msgid "Create!"
 msgstr "Erstellen!"
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:199
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:224
 #, elixir-autogen, elixir-format
 msgid "Delete"
 msgstr "Löschen"
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:214
 #, elixir-autogen, elixir-format
 msgid "Delete Brainstorming"
 msgstr "Lösche Brainstorming"
@@ -343,7 +343,7 @@ msgstr "Download als PNG"
 msgid "Download as svg"
 msgstr "Download als SVG"
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:200
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:225
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Brainstorming delete are you sure"
 msgstr "Bist du sicher, dass das Brainstorming gelöscht werden soll?"
@@ -367,3 +367,19 @@ msgstr ""
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Brainstorming will be deleted in %{days}"
 msgstr "Brainstorming wird gelöscht in "
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Attention: This will delete all ideas in this brainstorming. The brainstorming itself and labels will be left unchanged. This cant be undone."
+msgstr "Achtung: Hiermit löscht Du alle Ideen in diesem Brainstorming. Das Brainstorming und die Labels bleiben unverändert. Diese Aktion kann nicht rückgängig gemacht werden."
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:203
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Brainstorming will be emptied - are you sure"
+msgstr "Bist du sicher, dass das Brainstorming geleert werden soll?"
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:205
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Empty brainstorming"
+msgstr "Leere das Brainstorming"

priv/gettext/default.pot

@@ -40,7 +40,7 @@ msgstr ""
 msgid "Are you sure you want to delete this idea?"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:220
 #, elixir-autogen, elixir-format
 msgid "Attention: This will delete the brainstorming with all belonging ideas and other associated records to it. This cant be undone"
 msgstr ""
@@ -66,12 +66,12 @@ msgstr ""
 msgid "Create!"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:199
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:224
 #, elixir-autogen, elixir-format
 msgid "Delete"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:214
 #, elixir-autogen, elixir-format
 msgid "Delete Brainstorming"
 msgstr ""
@@ -342,7 +342,7 @@ msgstr ""
 msgid "Download as svg"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:200
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:225
 #, elixir-autogen, elixir-format
 msgid "Brainstorming delete are you sure"
 msgstr ""
@@ -366,3 +366,19 @@ msgstr ""
 #, elixir-autogen, elixir-format
 msgid "Brainstorming will be deleted in %{days}"
 msgstr ""
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#, elixir-autogen, elixir-format
+msgid "Attention: This will delete all ideas in this brainstorming. The brainstorming itself and labels will be left unchanged. This cant be undone."
+msgstr ""
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:203
+#, elixir-autogen, elixir-format
+msgid "Brainstorming will be emptied - are you sure"
+msgstr ""
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:205
+#, elixir-autogen, elixir-format
+msgid "Empty brainstorming"
+msgstr ""

priv/gettext/en/LC_MESSAGES/default.po

@@ -41,7 +41,7 @@ msgstr ""
 msgid "Are you sure you want to delete this idea?"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:220
 #, elixir-autogen, elixir-format
 msgid "Attention: This will delete the brainstorming with all belonging ideas and other associated records to it. This cant be undone"
 msgstr ""
@@ -67,12 +67,12 @@ msgstr ""
 msgid "Create!"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:199
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:224
 #, elixir-autogen, elixir-format
 msgid "Delete"
 msgstr ""
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:214
 #, elixir-autogen, elixir-format
 msgid "Delete Brainstorming"
 msgstr ""
@@ -343,7 +343,7 @@ msgstr "Download as png"
 msgid "Download as svg"
 msgstr "Download as svg"
 
-#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:200
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:225
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Brainstorming delete are you sure"
 msgstr "Are you sure that you want to delete this brainstorming?"
@@ -367,3 +367,19 @@ msgstr ""
 #, elixir-autogen, elixir-format, fuzzy
 msgid "Brainstorming will be deleted in %{days}"
 msgstr ""
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:195
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Attention: This will delete all ideas in this brainstorming. The brainstorming itself and labels will be left unchanged. This cant be undone."
+msgstr ""
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:203
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Brainstorming will be emptied - are you sure"
+msgstr "Are you sure that you want to delete this brainstorming?"
+
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:189
+#: lib/mindwendel_web/live/admin/brainstorming_live/edit.html.heex:205
+#, elixir-autogen, elixir-format, fuzzy
+msgid "Empty brainstorming"
+msgstr ""

test/mindwendel/brainstormings_test.exs

@@ -1,4 +1,5 @@
 defmodule Mindwendel.BrainstormingsTest do
+  alias Mindwendel.Brainstormings.IdeaIdeaLabel
   use Mindwendel.DataCase
   alias Mindwendel.Brainstormings.BrainstormingModeratingUser
   alias Mindwendel.Factory
@@ -311,4 +312,61 @@ defmodule Mindwendel.BrainstormingsTest do
       assert Repo.exists?(from(b in Brainstorming, where: b.id == ^brainstorming.id))
     end
   end
+
+  describe "empty/1 brainstormings" do
+    test "empty/1 removes all ideas from a brainstorming", %{brainstorming: brainstorming} do
+      brainstorming = brainstorming |> Repo.preload([:ideas])
+      assert Enum.count(brainstorming.ideas) == 1
+      Brainstormings.empty(brainstorming)
+      # reload brainstorming:
+      brainstorming = Brainstormings.get_brainstorming!(brainstorming.id)
+      brainstorming = brainstorming |> Repo.preload([:ideas])
+      assert Enum.count(brainstorming.ideas) == 0
+    end
+
+    test "empty/1 also clears likes and labels from ideas", %{brainstorming: brainstorming} do
+      idea =
+        Factory.insert!(:idea,
+          brainstorming: brainstorming,
+          inserted_at: ~N[2021-01-01 15:04:30]
+        )
+
+      like = Factory.insert!(:like, idea: idea)
+
+      {:ok, idea} =
+        Brainstormings.add_idea_label_to_idea(idea, Enum.at(brainstorming.labels, 0))
+
+      idea = idea |> Repo.preload([:idea_labels])
+
+      Brainstormings.empty(brainstorming)
+      # reload brainstorming:
+      brainstorming = Brainstormings.get_brainstorming!(brainstorming.id)
+
+      assert Enum.count(brainstorming.ideas) == 0
+      assert Repo.get_by(Idea, id: idea.id) == nil
+      assert Repo.get_by(IdeaIdeaLabel, idea_id: idea.id) == nil
+      assert Repo.get_by(Like, id: like.id) == nil
+    end
+
+    test "empty/1 does not removes all ideas from other brainstormings", %{
+      brainstorming: brainstorming
+    } do
+      other_brainstorming = Factory.insert!(:brainstorming)
+
+      Factory.insert!(:idea,
+        brainstorming: other_brainstorming
+      )
+
+      other_brainstorming = other_brainstorming |> Repo.preload([:ideas])
+
+      assert Enum.count(other_brainstorming.ideas) == 1
+      Brainstormings.empty(brainstorming)
+      # reload brainstorming:
+      brainstorming = Brainstormings.get_brainstorming!(brainstorming.id)
+      brainstorming = brainstorming |> Repo.preload([:ideas])
+      other_brainstorming = other_brainstorming |> Repo.preload([:ideas])
+      assert Enum.count(brainstorming.ideas) == 0
+      assert Enum.count(other_brainstorming.ideas) == 1
+    end
+  end
 end

test/mindwendel_web/live/admin/brainstorming_live/edit_test.exs

@@ -4,8 +4,16 @@ defmodule MindwendelWeb.Admin.BrainstormingLive.EditTest do
 
   alias Mindwendel.Factory
 
+  alias Mindwendel.Brainstormings
+
   setup do
-    %{brainstorming: Factory.insert!(:brainstorming)}
+    brainstorming = Factory.insert!(:brainstorming)
+
+    %{
+      brainstorming: brainstorming,
+      idea:
+        Factory.insert!(:idea, brainstorming: brainstorming, inserted_at: ~N[2021-01-01 15:04:30])
+    }
   end
 
   test "connected mount", %{
@@ -130,6 +138,28 @@ defmodule MindwendelWeb.Admin.BrainstormingLive.EditTest do
     assert edit_live_view |> element("input#brainstorming_labels_4_name") |> has_element?
   end
 
+  describe "empty brainstorming" do
+    test "handles empty event to delete brainstorming content", %{
+      conn: conn,
+      brainstorming: brainstorming
+    } do
+      {:ok, edit_live_view, _html} =
+        live(conn, Routes.admin_brainstorming_edit_path(conn, :edit, brainstorming.admin_url_id))
+
+      # reload brainstorming to check for changes:
+      brainstorming = Brainstormings.get_brainstorming!(brainstorming.id)
+      assert Enum.count(brainstorming.ideas) == 1
+
+      edit_live_view
+      |> element("button", "Empty")
+      |> render_click()
+
+      # reload brainstorming to check for changes:
+      brainstorming = Brainstormings.get_brainstorming!(brainstorming.id)
+      assert Enum.count(brainstorming.ideas) == 0
+    end
+  end
+
   defp html_selector_remove_idea_label_button(idea_label) do
     "button[value=\"#{idea_label.id}\"]"
   end