gitlab-org--gitlab-foss/app/models/concerns/issuable.rb

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# == Issuable concern
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#
# Contains common functionality shared between Issues and MergeRequests
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#
# Used by Issue, MergeRequest
#
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module Issuable
extend ActiveSupport::Concern
include CacheMarkdownField
include Participable
include Mentionable
include Subscribable
include StripAttribute
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include Awardable
include Taskable
include TimeTrackable
included do
cache_markdown_field :title, pipeline: :single_line
cache_markdown_field :description
belongs_to :author, class_name: "User"
belongs_to :assignee, class_name: "User"
belongs_to :updated_by, class_name: "User"
belongs_to :milestone
has_many :notes, as: :noteable, inverse_of: :noteable, dependent: :destroy do
def authors_loaded?
# We check first if we're loaded to not load unnecessarily.
loaded? && to_a.all? { |note| note.association(:author).loaded? }
end
def award_emojis_loaded?
# We check first if we're loaded to not load unnecessarily.
loaded? && to_a.all? { |note| note.association(:award_emoji).loaded? }
end
end
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has_many :label_links, as: :target, dependent: :destroy
has_many :labels, through: :label_links
has_many :todos, as: :target, dependent: :destroy
has_one :metrics
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validates :author, presence: true
validates :title, presence: true, length: { maximum: 255 }
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scope :authored, ->(user) { where(author_id: user) }
scope :assigned_to, ->(u) { where(assignee_id: u.id)}
scope :recent, -> { reorder(id: :desc) }
scope :assigned, -> { where("assignee_id IS NOT NULL") }
scope :unassigned, -> { where("assignee_id IS NULL") }
scope :of_projects, ->(ids) { where(project_id: ids) }
scope :of_milestones, ->(ids) { where(milestone_id: ids) }
scope :with_milestone, ->(title) { left_joins_milestones.where(milestones: { title: title }) }
scope :opened, -> { with_state(:opened, :reopened) }
scope :only_opened, -> { with_state(:opened) }
scope :only_reopened, -> { with_state(:reopened) }
scope :closed, -> { with_state(:closed) }
scope :left_joins_milestones, -> { joins("LEFT OUTER JOIN milestones ON #{table_name}.milestone_id = milestones.id") }
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scope :order_milestone_due_desc, -> { left_joins_milestones.reorder('milestones.due_date IS NULL, milestones.id IS NULL, milestones.due_date DESC') }
scope :order_milestone_due_asc, -> { left_joins_milestones.reorder('milestones.due_date IS NULL, milestones.id IS NULL, milestones.due_date ASC') }
scope :without_label, -> { joins("LEFT OUTER JOIN label_links ON label_links.target_type = '#{name}' AND label_links.target_id = #{table_name}.id").where(label_links: { id: nil }) }
scope :join_project, -> { joins(:project) }
scope :inc_notes_with_associations, -> { includes(notes: [ :project, :author, :award_emoji ]) }
scope :references_project, -> { references(:project) }
scope :non_archived, -> { join_project.where(projects: { archived: false }) }
delegate :name,
:email,
to: :author,
prefix: true
delegate :name,
:email,
to: :assignee,
allow_nil: true,
prefix: true
attr_mentionable :title, pipeline: :single_line
attr_mentionable :description
participant :author
participant :assignee
participant :notes_with_associations
strip_attributes :title
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acts_as_paranoid
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after_save :update_assignee_cache_counts, if: :assignee_id_changed?
after_save :record_metrics
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def update_assignee_cache_counts
# make sure we flush the cache for both the old *and* new assignees(if they exist)
previous_assignee = User.find_by_id(assignee_id_was) if assignee_id_was
previous_assignee.update_cache_counts if previous_assignee
assignee.update_cache_counts if assignee
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end
# We want to use optimistic lock for cases when only title or description are involved
# http://api.rubyonrails.org/classes/ActiveRecord/Locking/Optimistic.html
def locking_enabled?
title_changed? || description_changed?
end
end
module ClassMethods
# Searches for records with a matching title.
#
# This method uses ILIKE on PostgreSQL and LIKE on MySQL.
#
# query - The search query as a String
#
# Returns an ActiveRecord::Relation.
def search(query)
where(arel_table[:title].matches("%#{query}%"))
end
# Searches for records with a matching title or description.
#
# This method uses ILIKE on PostgreSQL and LIKE on MySQL.
#
# query - The search query as a String
#
# Returns an ActiveRecord::Relation.
def full_search(query)
t = arel_table
pattern = "%#{query}%"
where(t[:title].matches(pattern).or(t[:description].matches(pattern)))
end
def sort(method, excluded_labels: [])
sorted = case method.to_s
when 'milestone_due_asc' then order_milestone_due_asc
when 'milestone_due_desc' then order_milestone_due_desc
when 'downvotes_desc' then order_downvotes_desc
when 'upvotes_desc' then order_upvotes_desc
when 'priority' then order_labels_priority(excluded_labels: excluded_labels)
else
order_by(method)
end
# Break ties with the ID column for pagination
sorted.order(id: :desc)
end
def order_labels_priority(excluded_labels: [])
params = {
target_type: name,
target_column: "#{table_name}.id",
project_column: "#{table_name}.#{project_foreign_key}",
excluded_labels: excluded_labels
}
highest_priority = highest_label_priority(params).to_sql
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select("#{table_name}.*, (#{highest_priority}) AS highest_priority").
group(arel_table[:id]).
reorder(Gitlab::Database.nulls_last_order('highest_priority', 'ASC'))
end
def with_label(title, sort = nil)
if title.is_a?(Array) && title.size > 1
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joins(:labels).where(labels: { title: title }).group(*grouping_columns(sort)).having("COUNT(DISTINCT labels.title) = #{title.size}")
else
joins(:labels).where(labels: { title: title })
end
end
# Includes table keys in group by clause when sorting
# preventing errors in postgres
#
# Returns an array of arel columns
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def grouping_columns(sort)
grouping_columns = [arel_table[:id]]
if ["milestone_due_desc", "milestone_due_asc"].include?(sort)
milestone_table = Milestone.arel_table
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grouping_columns << milestone_table[:id]
grouping_columns << milestone_table[:due_date]
end
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grouping_columns
end
def to_ability_name
model_name.singular
end
end
def today?
Date.today == created_at.to_date
end
def new?
today? && created_at == updated_at
end
def is_being_reassigned?
assignee_id_changed?
end
def open?
opened? || reopened?
end
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def user_notes_count
if notes.loaded?
# Use the in-memory association to select and count to avoid hitting the db
notes.to_a.count { |note| !note.system? }
else
# do the count query
notes.user.count
end
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end
def subscribed_without_subscriptions?(user, project)
participants(user).include?(user)
end
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def to_hook_data(user)
hook_data = {
object_kind: self.class.name.underscore,
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user: user.hook_attrs,
project: project.hook_attrs,
object_attributes: hook_attrs,
# DEPRECATED
repository: project.hook_attrs.slice(:name, :url, :description, :homepage)
}
hook_data.merge!(assignee: assignee.hook_attrs) if assignee
hook_data
end
def labels_array
labels.to_a
end
def label_names
labels.order('title ASC').pluck(:title)
end
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# Convert this Issuable class name to a format usable by Ability definitions
#
# Examples:
#
# issuable.class # => MergeRequest
# issuable.to_ability_name # => "merge_request"
def to_ability_name
self.class.to_ability_name
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end
# Convert this Issuable class name to a format usable by notifications.
#
# Examples:
#
# issuable.class # => MergeRequest
# issuable.human_class_name # => "merge request"
def human_class_name
@human_class_name ||= self.class.name.titleize.downcase
end
# Returns a Hash of attributes to be used for Twitter card metadata
def card_attributes
{
'Author' => author.try(:name),
'Assignee' => assignee.try(:name)
}
end
def notes_with_associations
# If A has_many Bs, and B has_many Cs, and you do
# `A.includes(b: :c).each { |a| a.b.includes(:c) }`, sadly ActiveRecord
# will do the inclusion again. So, we check if all notes in the relation
# already have their authors loaded (possibly because the scope
# `inc_notes_with_associations` was used) and skip the inclusion if that's
# the case.
includes = []
includes << :author unless notes.authors_loaded?
includes << :award_emoji unless notes.award_emojis_loaded?
if includes.any?
notes.includes(includes)
else
notes
end
end
def updated_tasks
Taskable.get_updated_tasks(old_content: previous_changes['description'].first,
new_content: description)
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end
##
# Method that checks if issuable can be moved to another project.
#
# Should be overridden if issuable can be moved.
#
def can_move?(*)
false
end
def assignee_or_author?(user)
# We're comparing IDs here so we don't need to load any associations.
author_id == user.id || assignee_id == user.id
end
def record_metrics
metrics = self.metrics || create_metrics
metrics.record!
end
end