1 files changed, 4 insertions, 88 deletions

diff --git a/app/models/concerns/timebox.rb b/app/models/concerns/timebox.rb
index d53594eb5af..5b74e88429c 100644
--- a/app/models/concerns/timebox.rb
+++ b/app/models/concerns/timebox.rb
@@ -3,13 +3,10 @@
 module Timebox
   extend ActiveSupport::Concern
 
-  include AtomicInternalId
   include CacheMarkdownField
   include Gitlab::SQL::Pattern
-  include IidRoutes
   include Referable
   include StripAttribute
-  include FromUnion
 
   TimeboxStruct = Struct.new(:title, :name, :id, :class_name) do
     # Ensure these models match the interface required for exporting
@@ -42,39 +39,19 @@ module Timebox
 
     alias_method :timebox_id, :id
 
-    validates :group, presence: true, unless: :project
-    validates :project, presence: true, unless: :group
-
-    validate :timebox_type_check
     validate :start_date_should_be_less_than_due_date, if: proc { |m| m.start_date.present? && m.due_date.present? }
     validate :dates_within_4_digits
 
     cache_markdown_field :title, pipeline: :single_line
     cache_markdown_field :description, issuable_reference_expansion_enabled: true
 
-    belongs_to :project
-    belongs_to :group
-
     has_many :issues
     has_many :labels, -> { distinct.reorder('labels.title') }, through: :issues
     has_many :merge_requests
 
-    scope :of_projects, ->(ids) { where(project_id: ids) }
-    scope :of_groups, ->(ids) { where(group_id: ids) }
     scope :closed, -> { with_state(:closed) }
-    scope :for_projects, -> { where(group: nil).includes(:project) }
     scope :with_title, -> (title) { where(title: title) }
 
-    scope :for_projects_and_groups, -> (projects, groups) do
-      projects = projects.compact if projects.is_a? Array
-      projects = [] if projects.nil?
-
-      groups = groups.compact if groups.is_a? Array
-      groups = [] if groups.nil?
-
-      from_union([where(project_id: projects), where(group_id: groups)], remove_duplicates: false)
-    end
-
     # A timebox is within the timeframe (start_date, end_date) if it overlaps
     # with that timeframe:
     #
@@ -132,10 +109,6 @@ module Timebox
       end
     end
 
-    def count_by_state
-      reorder(nil).group(:state).count
-    end
-
     def predefined_id?(id)
       [Any.id, None.id, Upcoming.id, Started.id].include?(id)
     end
@@ -145,29 +118,8 @@ module Timebox
     end
   end
 
-  ##
-  # Returns the String necessary to reference a Timebox in Markdown. Group
-  # timeboxes only support name references, and do not support cross-project
-  # references.
-  #
-  # format - Symbol format to use (default: :iid, optional: :name)
-  #
-  # Examples:
-  #
-  #   Milestone.first.to_reference                           # => "%1"
-  #   Iteration.first.to_reference(format: :name)            # => "*iteration:\"goal\""
-  #   Milestone.first.to_reference(cross_namespace_project)  # => "gitlab-org/gitlab-foss%1"
-  #   Iteration.first.to_reference(same_namespace_project)   # => "gitlab-foss*iteration:1"
-  #
-  def to_reference(from = nil, format: :name, full: false)
-    format_reference = timebox_format_reference(format)
-    reference = "#{self.class.reference_prefix}#{format_reference}"
-
-    if project
-      "#{project.to_reference_base(from, full: full)}#{reference}"
-    else
-      reference
-    end
+  def to_reference
+    raise NotImplementedError
   end
 
   def reference_link_text(from = nil)
@@ -182,20 +134,12 @@ module Timebox
     model_name.singular
   end
 
-  def group_timebox?
-    group_id.present?
-  end
-
-  def project_timebox?
-    project_id.present?
-  end
-
   def safe_title
     title.to_slug.normalize.to_s
   end
 
   def resource_parent
-    group || project
+    raise NotImplementedError
   end
 
   def to_ability_name
@@ -203,13 +147,7 @@ module Timebox
   end
 
   def merge_requests_enabled?
-    if group_timebox?
-      # Assume that groups have at least one project with merge requests enabled.
-      # Otherwise, we would need to load all of the projects from the database.
-      true
-    elsif project_timebox?
-      project&.merge_requests_enabled?
-    end
+    raise NotImplementedError
   end
 
   def weight_available?
@@ -218,28 +156,6 @@ module Timebox
 
   private
 
-  def timebox_format_reference(format = :iid)
-    raise ArgumentError, _('Unknown format') unless [:iid, :name].include?(format)
-
-    if group_timebox? && format == :iid
-      raise ArgumentError, _('Cannot refer to a group %{timebox_type} by an internal id!') % { timebox_type: timebox_name }
-    end
-
-    if format == :name && !name.include?('"')
-      %("#{name}")
-    else
-      iid
-    end
-  end
-
-  # Timebox should be either a project timebox or a group timebox
-  def timebox_type_check
-    if group_id && project_id
-      field = project_id_changed? ? :project_id : :group_id
-      errors.add(field, _("%{timebox_name} should belong either to a project or a group.") % { timebox_name: timebox_name })
-    end
-  end
-
   def start_date_should_be_less_than_due_date
     if due_date <= start_date
       errors.add(:due_date, _("must be greater than start date"))