Add bookmarks (#7107)

* Add backend support for bookmarks

Bookmarks behave like favourites, except they aren't shared with other
users and do not have an associated counter.

* Add spec for bookmark endpoints

* Add front-end support for bookmarks

* Introduce OAuth scopes for bookmarks

* Add bookmarks to archive takeout

* Fix migration

* Coding style fixes

* Fix rebase issue

* Update bookmarked_statuses to latest UI changes

* Update bookmark actions to properly reflect status changes in state

* Add bookmarks item to single-column layout

* Make active bookmarks red

4 files changed, 36 insertions, 0 deletions

diff --git a/app/models/bookmark.rb b/app/models/bookmark.rb
new file mode 100644
index 000000000..01dc48ee7
--- /dev/null
+++ b/app/models/bookmark.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+# == Schema Information
+#
+# Table name: bookmarks
+#
+#  id         :integer          not null, primary key
+#  created_at :datetime         not null
+#  updated_at :datetime         not null
+#  account_id :integer          not null
+#  status_id  :integer          not null
+#
+
+class Bookmark < ApplicationRecord
+  include Paginable
+
+  update_index('statuses#status', :status) if Chewy.enabled?
+
+  belongs_to :account, inverse_of: :bookmarks
+  belongs_to :status,  inverse_of: :bookmarks
+
+  validates :status_id, uniqueness: { scope: :account_id }
+
+  before_validation do
+    self.status = status.reblog if status&.reblog?
+  end
+end
diff --git a/app/models/concerns/account_associations.rb b/app/models/concerns/account_associations.rb
index c9cc5c610..499edbf4e 100644
--- a/app/models/concerns/account_associations.rb
+++ b/app/models/concerns/account_associations.rb
@@ -13,6 +13,7 @@ module AccountAssociations
     # Timelines
     has_many :statuses, inverse_of: :account, dependent: :destroy
     has_many :favourites, inverse_of: :account, dependent: :destroy
+    has_many :bookmarks, inverse_of: :account, dependent: :destroy
     has_many :mentions, inverse_of: :account, dependent: :destroy
     has_many :notifications, inverse_of: :account, dependent: :destroy
     has_many :conversations, class_name: 'AccountConversation', dependent: :destroy, inverse_of: :account
diff --git a/app/models/concerns/account_interactions.rb b/app/models/concerns/account_interactions.rb
index ad2909d91..f27d39483 100644
--- a/app/models/concerns/account_interactions.rb
+++ b/app/models/concerns/account_interactions.rb
@@ -186,6 +186,10 @@ module AccountInteractions
     status.proper.favourites.where(account: self).exists?
   end
 
+  def bookmarked?(status)
+    status.proper.bookmarks.where(account: self).exists?
+  end
+
   def reblogged?(status)
     status.proper.reblogs.where(account: self).exists?
   end
diff --git a/app/models/status.rb b/app/models/status.rb
index 0c01a5389..1cb381400 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -54,6 +54,7 @@ class Status < ApplicationRecord
   belongs_to :reblog, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblogs, optional: true
 
   has_many :favourites, inverse_of: :status, dependent: :destroy
+  has_many :bookmarks, inverse_of: :status, dependent: :destroy
   has_many :reblogs, foreign_key: 'reblog_of_id', class_name: 'Status', inverse_of: :reblog, dependent: :destroy
   has_many :replies, foreign_key: 'in_reply_to_id', class_name: 'Status', inverse_of: :thread
   has_many :mentions, dependent: :destroy, inverse_of: :status
@@ -302,6 +303,10 @@ class Status < ApplicationRecord
       Favourite.select('status_id').where(status_id: status_ids).where(account_id: account_id).each_with_object({}) { |f, h| h[f.status_id] = true }
     end
 
+    def bookmarks_map(status_ids, account_id)
+      Bookmark.select('status_id').where(status_id: status_ids).where(account_id: account_id).map { |f| [f.status_id, true] }.to_h
+    end
+
     def reblogs_map(status_ids, account_id)
       unscoped.select('reblog_of_id').where(reblog_of_id: status_ids).where(account_id: account_id).each_with_object({}) { |s, h| h[s.reblog_of_id] = true }
     end