class Label < ActiveRecord::Base include CacheMarkdownField include Referable include Subscribable # Represents a "No Label" state used for filtering Issues and Merge # Requests that have no label assigned. LabelStruct = Struct.new(:title, :name) None = LabelStruct.new('No Label', 'No Label') Any = LabelStruct.new('Any Label', '') cache_markdown_field :description, pipeline: :single_line DEFAULT_COLOR = '#428BCA'.freeze default_value_for :color, DEFAULT_COLOR has_many :lists, dependent: :destroy has_many :priorities, class_name: 'LabelPriority' has_many :label_links, dependent: :destroy has_many :issues, through: :label_links, source: :target, source_type: 'Issue' has_many :merge_requests, through: :label_links, source: :target, source_type: 'MergeRequest' before_validation :strip_whitespace_from_title_and_color validates :color, color: true, allow_blank: false # Don't allow ',' for label titles validates :title, presence: true, format: { with: /\A[^,]+\z/ } validates :title, uniqueness: { scope: [:group_id, :project_id] } validates :title, length: { maximum: 255 } default_scope { order(title: :asc) } scope :templates, -> { where(template: true) } scope :with_title, ->(title) { where(title: title) } def self.prioritized(project) joins(:priorities) .where(label_priorities: { project_id: project }) .reorder('label_priorities.priority ASC, labels.title ASC') end def self.unprioritized(project) labels = Label.arel_table priorities = LabelPriority.arel_table label_priorities = labels.join(priorities, Arel::Nodes::OuterJoin). on(labels[:id].eq(priorities[:label_id]).and(priorities[:project_id].eq(project.id))). join_sources joins(label_priorities).where(priorities[:priority].eq(nil)) end def self.left_join_priorities labels = Label.arel_table priorities = LabelPriority.arel_table label_priorities = labels.join(priorities, Arel::Nodes::OuterJoin). on(labels[:id].eq(priorities[:label_id])). join_sources joins(label_priorities) end alias_attribute :name, :title def self.reference_prefix '~' end ## # Pattern used to extract label references from text # # This pattern supports cross-project references. # def self.reference_pattern # NOTE: The id pattern only matches when all characters on the expression # are digits, so it will match ~2 but not ~2fa because that's probably a # label name and we want it to be matched as such. @reference_pattern ||= %r{ (#{Project.reference_pattern})? #{Regexp.escape(reference_prefix)} (?: (?\d+(?!\S\w)\b) | # Integer-based label ID, or (? [A-Za-z0-9_\-\?\.&]+ | # String-based single-word label title, or ".+?" # String-based multi-word label surrounded in quotes ) ) }x end def self.link_reference_pattern nil end def open_issues_count(user = nil) issues_count(user, state: 'opened') end def closed_issues_count(user = nil) issues_count(user, state: 'closed') end def open_merge_requests_count(user = nil) params = { subject_foreign_key => subject.id, label_name: title, scope: 'all', state: 'opened' } MergeRequestsFinder.new(user, params.with_indifferent_access).execute.count end def prioritize!(project, value) label_priority = priorities.find_or_initialize_by(project_id: project.id) label_priority.priority = value label_priority.save! end def unprioritize!(project) priorities.where(project: project).delete_all end def priority(project) priorities.find_by(project: project).try(:priority) end def template? template end def text_color LabelsHelper.text_color_for_bg(self.color) end def title=(value) write_attribute(:title, sanitize_title(value)) if value.present? end ## # Returns the String necessary to reference this Label in Markdown # # format - Symbol format to use (default: :id, optional: :name) # # Examples: # # Label.first.to_reference # => "~1" # Label.first.to_reference(format: :name) # => "~\"bug\"" # Label.first.to_reference(project, target_project: same_namespace_project) # => "gitlab-ce~1" # Label.first.to_reference(project, target_project: another_namespace_project) # => "gitlab-org/gitlab-ce~1" # # Returns a String # def to_reference(from_project = nil, target_project: nil, format: :id, full: false) format_reference = label_format_reference(format) reference = "#{self.class.reference_prefix}#{format_reference}" if from_project "#{from_project.to_reference(target_project, full: full)}#{reference}" else reference end end def as_json(options = {}) super(options).tap do |json| json[:priority] = priority(options[:project]) if options.has_key?(:project) end end def hook_attrs attributes end private def issues_count(user, params = {}) params.merge!(subject_foreign_key => subject.id, label_name: title, scope: 'all') IssuesFinder.new(user, params.with_indifferent_access).execute.count end def label_format_reference(format = :id) raise StandardError, 'Unknown format' unless [:id, :name].include?(format) if format == :name && !name.include?('"') %("#{name}") else id end end def sanitize_title(value) CGI.unescapeHTML(Sanitize.clean(value.to_s)) end def strip_whitespace_from_title_and_color %w(color title).each { |attr| self[attr] = self[attr]&.strip } end end