gitlab-org--gitlab-foss/app/models/label.rb

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# frozen_string_literal: true
class Label < ApplicationRecord
include CacheMarkdownField
include Referable
include Subscribable
include Gitlab::SQL::Pattern
include OptionallySearch
include Sortable
include FromUnion
include Presentable
cache_markdown_field :description, pipeline: :single_line
DEFAULT_COLOR = ::Gitlab::Color.of('#6699cc')
attribute :color, ::Gitlab::Database::Type::Color.new
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default_value_for :color, DEFAULT_COLOR
has_many :lists, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
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has_many :priorities, class_name: 'LabelPriority'
has_many :label_links, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
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
validates :color, color: true, presence: true
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# 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) } # rubocop:disable Cop/DefaultScope
scope :templates, -> { where(template: true, type: [Label.name, nil]) }
scope :with_title, ->(title) { where(title: title) }
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scope :with_lists_and_board, -> { joins(lists: :board).merge(List.movable) }
scope :on_project_boards, ->(project_id) { with_lists_and_board.where(boards: { project_id: project_id }) }
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scope :on_board, ->(board_id) { with_lists_and_board.where(boards: { id: board_id }) }
scope :order_name_asc, -> { reorder(title: :asc) }
scope :order_name_desc, -> { reorder(title: :desc) }
scope :subscribed_by, ->(user_id) { joins(:subscriptions).where(subscriptions: { user_id: user_id, subscribed: true }) }
scope :top_labels_by_target, -> (target_relation) {
label_id_column = arel_table[:id]
# Window aggregation to count labels
count_by_id = Arel::Nodes::Over.new(
Arel::Nodes::NamedFunction.new('count', [label_id_column]),
Arel::Nodes::Window.new.partition(label_id_column)
).as('count_by_id')
select(arel_table[Arel.star], count_by_id)
.joins(:label_links)
.merge(LabelLink.where(target: target_relation))
.reorder(count_by_id: :desc)
.distinct
}
def self.prioritized(project)
joins(:priorities)
.where(label_priorities: { project_id: project })
.reorder('label_priorities.priority ASC, labels.title ASC')
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end
def self.unprioritized(project)
labels = Label.arel_table
priorities = LabelPriority.arel_table
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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
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def self.left_join_priorities
labels = Label.arel_table
priorities = LabelPriority.arel_table
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label_priorities = labels.join(priorities, Arel::Nodes::OuterJoin)
.on(labels[:id].eq(priorities[:label_id]))
.join_sources
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joins(label_priorities)
end
def self.optionally_subscribed_by(user_id)
if user_id
subscribed_by(user_id)
else
all
end
end
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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)}
(?:
(?<label_id>\d+(?!\S\w)\b)
| # Integer-based label ID, or
(?<label_name>
# String-based single-word label title, or
[A-Za-z0-9_\-\?\.&]+
(?<!\.|\?)
|
# String-based multi-word label surrounded in quotes
".+?"
)
)
}x
end
def self.link_reference_pattern
nil
end
def self.ids_on_board(board_id)
on_board(board_id).pluck(:label_id)
end
# Searches for labels with a matching title or description.
#
# This method uses ILIKE on PostgreSQL.
#
# query - The search query as a String.
#
# Returns an ActiveRecord::Relation.
def self.search(query, **options)
fuzzy_search(query, [:title, :description])
end
# Override Gitlab::SQL::Pattern.min_chars_for_partial_matching as
# label queries are never global, and so will not use a trigram
# index. That means we can have just one character in the LIKE.
def self.min_chars_for_partial_matching
1
end
def self.on_project_board?(project_id, label_id)
return false if label_id.blank?
on_project_boards(project_id).where(id: label_id).exists?
end
# Generate a hex color based on hex-encoded value
def self.color_for(value)
"##{Digest::MD5.hexdigest(value)[0..5]}"
end
def open_issues_count(user = nil)
issues_count(user, state: 'opened')
end
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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
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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)
priority = if priorities.loaded?
priorities.first { |p| p.project == project }
else
priorities.find_by(project: project)
end
priority.try(:priority)
end
def priority?
priorities.present?
end
def color
super || DEFAULT_COLOR
end
def text_color
color.contrast
end
def title=(value)
if value.blank?
super
else
write_attribute(:title, sanitize_value(value))
end
end
def description=(value)
if value.blank?
super
else
write_attribute(:description, sanitize_value(value))
end
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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-foss~1"
# Label.first.to_reference(project, target_project: another_namespace_project) # => "gitlab-org/gitlab-foss~1"
#
# Returns a String
#
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def to_reference(from = nil, target_project: nil, format: :id, full: false)
format_reference = label_format_reference(format)
reference = "#{self.class.reference_prefix}#{format_reference}"
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if from
"#{from.to_reference_base(target_project, full: full)}#{reference}"
else
reference
end
end
def as_json(options = {})
super(options).tap do |json|
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json[:type] = self.try(:type)
json[:priority] = priority(options[:project]) if options.key?(:project)
json[:textColor] = text_color
end
end
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def hook_attrs
attributes
end
def present(attributes = {})
super(**attributes.merge(presenter_class: ::LabelPresenter))
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_value(value)
CGI.unescapeHTML(Sanitize.clean(value.to_s))
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end
def strip_whitespace_from_title
self[:title] = title&.strip
end
end
Label.prepend_mod_with('Label')