From dbbae6a1a69d838c81fe549addcd7c2e282bb742 Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Thu, 14 Mar 2019 22:15:09 -0400
Subject: [PATCH] Add rule deletion

---
 lib/frenzy/rule.ex                            | 12 +++++++++++-
 lib/frenzy_web/templates/filter/edit.html.eex |  4 ++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/frenzy/rule.ex b/lib/frenzy/rule.ex
index b303507..d347f85 100644
--- a/lib/frenzy/rule.ex
+++ b/lib/frenzy/rule.ex
@@ -7,6 +7,7 @@ defmodule Frenzy.Rule do
     field :property, :string
     field :param, :string
     field :weight, :integer
+    field :delete, :boolean, virtual: true
 
     belongs_to :filter, Frenzy.Filter
 
@@ -16,7 +17,16 @@ defmodule Frenzy.Rule do
   @doc false
   def changeset(rule, attrs) do
     rule
-    |> cast(attrs, [:mode, :property, :param, :weight])
+    |> cast(attrs, [:mode, :property, :param, :weight, :delete])
+    |> set_delete_action()
     |> validate_required([:mode, :property, :param, :weight])
   end
+
+  def set_delete_action(changeset) do
+    if get_change(changeset, :delete) do
+      %{changeset | action: :delete}
+    else
+      changeset
+    end
+  end
 end
diff --git a/lib/frenzy_web/templates/filter/edit.html.eex b/lib/frenzy_web/templates/filter/edit.html.eex
index c2ae383..aa0f269 100644
--- a/lib/frenzy_web/templates/filter/edit.html.eex
+++ b/lib/frenzy_web/templates/filter/edit.html.eex
@@ -15,6 +15,7 @@
       <th>Mode</th>
       <th>Param</th>
       <th>Weight</th>
+      <th>Delete?</th>
     </tr>
     <%= inputs_for form, :rules, fn p -> %>
       <tr>
@@ -30,6 +31,9 @@
         <td>
           <%= number_input p, :weight %>
         </td>
+        <td>
+          <%= checkbox p, :delete %>
+        </td>
       </tr>
     <% end %>
   </table>