remove unused LegacyJournal model

app/models/legacy_journal.rb

@@ -1,148 +0,0 @@
-#-- encoding: UTF-8
-#-- copyright
-# OpenProject is an open source project management software.
-# Copyright (C) 2012-2020 the OpenProject GmbH
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License version 3.
-#
-# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
-# Copyright (C) 2006-2017 Jean-Philippe Lang
-# Copyright (C) 2010-2013 the ChiliProject Team
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-#
-# See docs/COPYRIGHT.rdoc for more details.
-#++
-
-require 'journal_formatter'
-require 'redmine/acts/journalized/format_hooks'
-require 'open_project/journal_formatter/diff'
-require 'open_project/journal_formatter/attachment'
-require 'open_project/journal_formatter/custom_field'
-require 'journal_deprecated'
-
-# The ActiveRecord model representing journals.
-class LegacyJournal < ActiveRecord::Base
-  include Comparable
-  include ::JournalFormatter
-  include ::JournalDeprecated
-  include ::Redmine::Acts::Journalized::FormatHooks
-
-  # Make sure each journaled model instance only has unique version ids
-  validates_uniqueness_of :version, scope: [:journaled_id, :type]
-
-  # Define a default class_name to prevent `uninitialized constant Journal::Journaled`
-  # subclasses will be given an actual class name when they are created by aaj
-  #
-  #  e.g. IssueJournal will get class_name: 'Issue'
-  belongs_to :journaled, class_name: 'Journal'
-  belongs_to :user
-
-  register_journal_formatter :diff, OpenProject::JournalFormatter::Diff
-  register_journal_formatter :attachment, OpenProject::JournalFormatter::Attachment
-  register_journal_formatter :custom_field, OpenProject::JournalFormatter::CustomField
-
-  # "touch" the journaled object on creation
-  after_create :touch_journaled_after_creation
-
-  # Scopes to all journals excluding the initial journal - useful for change
-  # logs like the history on issue#show
-  scope :changing, -> {
-    where(['version > 1'])
-  }
-
-  # let all child classes have Journal as it's model name
-  # used to not having to create another route for every subclass of Journal
-  def self.inherited(child)
-    child.instance_eval do
-      def model_name
-        Journal.model_name
-      end
-    end
-    super
-  end
-
-  def touch_journaled_after_creation
-    journaled.touch
-  end
-
-  # In conjunction with the included Comparable module, allows comparison of journal records
-  # based on their corresponding version numbers, creation timestamps and IDs.
-  def <=>(other)
-    [version, created_at, id].map(&:to_i) <=> [other.version, other.created_at, other.id].map(&:to_i)
-  end
-
-  # Returns whether the version has a version number of 1. Useful when deciding whether to ignore
-  # the version during reversion, as initial versions have no serialized changes attached. Helps
-  # maintain backwards compatibility.
-  def initial?
-    version < 2
-  end
-
-  # The anchor number for html output
-  def anchor
-    version - 1
-  end
-
-  # Possible shortcut to the associated project
-  def project
-    if journaled.respond_to?(:project)
-      journaled.project
-    elsif journaled.is_a? Project
-      journaled
-    end
-  end
-
-  def editable_by?(user)
-    journaled.journal_editable_by?(user)
-  end
-
-  def details
-    attributes['changed_data'] || {}
-  end
-
-  # TODO Evaluate whether this can be removed without disturbing any migrations
-  alias_method :changed_data, :details
-
-  def new_value_for(prop)
-    details[prop.to_s].last if details.keys.include? prop.to_s
-  end
-
-  def old_value_for(prop)
-    details[prop.to_s].first if details.keys.include? prop.to_s
-  end
-
-  # Returns a string of css classes
-  def css_classes
-    s = 'journal'
-    s << ' has-notes' unless notes.blank?
-    s << ' has-details' unless details.empty?
-    s
-  end
-
-  # This is here to allow people to disregard the difference between working with a
-  # Journal and the object it is attached to.
-  # The lookup is as follows:
-  ## => Call super if the method corresponds to one of our attributes (will end up in AR::Base)
-  ## => Try the journaled object with the same method and arguments
-  ## => On error, call super
-  def method_missing(method, *args, &block)
-    return super if respond_to?(method) || attributes[method.to_s]
-    journaled.send(method, *args, &block)
-  rescue NoMethodError => e
-    e.name == method ? super : raise(e)
-  end
-end