From b544716f5ab0f2927932d2e920e55892bcd4306b Mon Sep 17 00:00:00 2001
From: stage-rl <robert.lences@gmail.com>
Date: Tue, 26 Sep 2023 15:04:09 +0200
Subject: [PATCH] Minor refactor based on PR review

---
 .../attached_tag_label_component.html.erb       |  2 +-
 app/controllers/messages_controller.rb          | 17 ++++++++++-------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/app/components/common/attached_tag_label_component.html.erb b/app/components/common/attached_tag_label_component.html.erb
index f0c628a39..8baf58ec7 100644
--- a/app/components/common/attached_tag_label_component.html.erb
+++ b/app/components/common/attached_tag_label_component.html.erb
@@ -2,7 +2,7 @@
   <div class="flex justify-center items-center   relative  gap-1 px-2 py-1 rounded-md bg-gray-50 border border-gray-300">
     <p class="  text-sm text-left text-gray-600"><%= @tag.name %></p>
     <% if @object_tag.deletable %>
-      <%= button_to url_for(@object_tag), method: :delete, form: { data: { turbo_confirm: "Naozaj odstrániť štítok #{tag.name} zo správy?" } } do %>
+      <%= button_to url_for(@object_tag), method: :delete, form: { data: { turbo_confirm: "Naozaj odstrániť štítok #{@tag.name} zo správy?" } } do %>
         <svg width="14" height="14" viewBox="0 0 14 14" fill="none" xmlns="http://www.w3.org/2000/svg" class="  w-3.5 h-3.5 relative" preserveAspectRatio="xMidYMid meet">
           <path d="M3.5 3.5L10.5 10.5M3.5 10.5L10.5 3.5L3.5 10.5Z" stroke="#6B7280" stroke-linecap="round" stroke-linejoin="round"></path>
         </svg>
diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 171abc75c..e66d6092c 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -29,9 +29,8 @@ def set_message_tags_with_deletable_flag
     @message_tags_with_deletable_flag =
       @message
         .messages_tags
-        .joins(:tag)
         .includes(:tag)
-        .select("messages_tags.*, tags.*, case when exists (#{permitted_tag_query.to_sql} and tags.id = messages_tags.tag_id) then true else false end as deletable")
+        .select("messages_tags.*, #{deletable_subquery('tags.id = messages_tags.tag_id').to_sql} as deletable")
         .order("tags.name")
   end
 
@@ -40,14 +39,18 @@ def set_thread_tags_with_deletable_flag
       @message
         .thread
         .message_threads_tags
-        .joins(:tag)
         .includes(:tag)
-        .select("message_threads_tags.*, tags.*, case when exists (#{permitted_tag_query.to_sql} and tags.id = message_threads_tags.tag_id) then true else false end as deletable")
-        .order("tags.name")
+        .select("message_threads_tags.*, #{deletable_subquery('tags.id = message_threads_tags.tag_id').to_sql} as deletable")
+        .order('tags.name')
   end
 
-  def permitted_tag_query
-    Tag.joins(:groups, { groups: :group_memberships }).where(group_memberships: { user_id: Current.user.id })
+  def deletable_subquery(where_clause)
+    Tag
+      .joins(:groups, { groups: :group_memberships })
+      .where('group_memberships.user_id = ?', Current.user.id)
+      .where(where_clause)
+      .arel
+      .exists
   end
 
   def permit_reply_params