Fix account tags not being saved correctly (#11507)

* Fix account tags not being saved correctly

Regression from f371b32

Fix Tag#discoverable not returning tags where listable is nil instead of true

Add notice when saving hashtags in admin UI

Change public hashtag and directory pages to return 404 for forbidden tags

* Remove unused locale string

5 files changed, 6 insertions, 15 deletions

diff --git a/app/controllers/admin/tags_controller.rb b/app/controllers/admin/tags_controller.rb
index 0e9dda302..ed271aedc 100644
--- a/app/controllers/admin/tags_controller.rb
+++ b/app/controllers/admin/tags_controller.rb
@@ -17,7 +17,7 @@ module Admin
       authorize @tag, :update?
 
       if @tag.update(tag_params.merge(reviewed_at: Time.now.utc))
-        redirect_to admin_tag_path(@tag.id)
+        redirect_to admin_tag_path(@tag.id), notice: I18n.t('admin.tags.updated_msg')
       else
         render :show
       end
diff --git a/app/controllers/directories_controller.rb b/app/controllers/directories_controller.rb
index d2ef76f06..a5c47b515 100644
--- a/app/controllers/directories_controller.rb
+++ b/app/controllers/directories_controller.rb
@@ -25,7 +25,7 @@ class DirectoriesController < ApplicationController
   end
 
   def set_tag
-    @tag = Tag.discoverable.find_by!(name: params[:id].downcase)
+    @tag = Tag.discoverable.find_normalized!(params[:id])
   end
 
   def set_tags
diff --git a/app/controllers/tags_controller.rb b/app/controllers/tags_controller.rb
index 3cd2d9e20..5a6fcc8fd 100644
--- a/app/controllers/tags_controller.rb
+++ b/app/controllers/tags_controller.rb
@@ -47,7 +47,7 @@ class TagsController < ApplicationController
   private
 
   def set_tag
-    @tag = Tag.find_normalized!(params[:id])
+    @tag = Tag.usable.find_normalized!(params[:id])
   end
 
   def set_body_classes
diff --git a/app/models/account.rb b/app/models/account.rb
index ccd116d6e..b205c8c9e 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -227,17 +227,7 @@ class Account < ApplicationRecord
   end
 
   def tags_as_strings=(tag_names)
-    tag_names.map! { |name| name.mb_chars.downcase.to_s }
-    tag_names.uniq!
-
-    # Existing hashtags
-    hashtags_map = Tag.where(name: tag_names).each_with_object({}) { |tag, h| h[tag.name] = tag }
-
-    # Initialize not yet existing hashtags
-    tag_names.each do |name|
-      next if hashtags_map.key?(name)
-      hashtags_map[name] = Tag.new(name: name)
-    end
+    hashtags_map = Tag.find_or_create_by_names(tag_names).each_with_object({}) { |tag, h| h[tag.name] = tag }
 
     # Remove hashtags that are to be deleted
     tags.each do |tag|
diff --git a/app/models/tag.rb b/app/models/tag.rb
index 6a02581fa..e2fe91da1 100644
--- a/app/models/tag.rb
+++ b/app/models/tag.rb
@@ -31,7 +31,8 @@ class Tag < ApplicationRecord
 
   scope :reviewed, -> { where.not(reviewed_at: nil) }
   scope :pending_review, -> { where(reviewed_at: nil).where.not(requested_review_at: nil) }
-  scope :discoverable, -> { where.not(listable: false).joins(:account_tag_stat).where(AccountTagStat.arel_table[:accounts_count].gt(0)).order(Arel.sql('account_tag_stats.accounts_count desc')) }
+  scope :usable, -> { where(usable: [true, nil]) }
+  scope :discoverable, -> { where(listable: [true, nil]).joins(:account_tag_stat).where(AccountTagStat.arel_table[:accounts_count].gt(0)).order(Arel.sql('account_tag_stats.accounts_count desc')) }
   scope :most_used, ->(account) { joins(:statuses).where(statuses: { account: account }).group(:id).order(Arel.sql('count(*) desc')) }
 
   delegate :accounts_count,