debian-mirror-gitlab/app/models/concerns/issuable.rb

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# == Issuable concern
#
# Contains common functionality shared between Issues and MergeRequests
#
# Used by Issue, MergeRequest
#
module Issuable
extend ActiveSupport::Concern
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include Gitlab::SQL::Pattern
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include CacheMarkdownField
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include Participable
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include Mentionable
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include Subscribable
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include StripAttribute
include Awardable
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include Taskable
include Importable
include Editable
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include AfterCommitQueue
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include Sortable
include CreatedAtFilterable
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include UpdatedAtFilterable
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# This object is used to gather issuable meta data for displaying
# upvotes, downvotes, notes and closing merge requests count for issues and merge requests
# lists avoiding n+1 queries and improving performance.
IssuableMeta = Struct.new(:upvotes, :downvotes, :notes_count, :merge_requests_count)
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included do
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cache_markdown_field :title, pipeline: :single_line
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cache_markdown_field :description, issuable_state_filter_enabled: true
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belongs_to :author, class_name: "User"
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belongs_to :updated_by, class_name: "User"
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belongs_to :last_edited_by, class_name: 'User'
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belongs_to :milestone
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has_many :notes, as: :noteable, inverse_of: :noteable, dependent: :destroy do # rubocop:disable Cop/ActiveRecordDependent
def authors_loaded?
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# We check first if we're loaded to not load unnecessarily.
loaded? && to_a.all? { |note| note.association(:author).loaded? }
end
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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 # rubocop:disable Cop/ActiveRecordDependent
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has_many :labels, through: :label_links
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has_many :todos, as: :target, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
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has_one :metrics
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delegate :name,
:email,
:public_email,
to: :author,
allow_nil: true,
prefix: true
delegate :name,
:email,
:public_email,
to: :assignee,
allow_nil: true,
prefix: true
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validates :author, presence: true
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validates :title, presence: true, length: { maximum: 255 }
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scope :authored, ->(user) { where(author_id: user) }
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scope :recent, -> { reorder(id: :desc) }
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scope :of_projects, ->(ids) { where(project_id: ids) }
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scope :of_milestones, ->(ids) { where(milestone_id: ids) }
scope :with_milestone, ->(title) { left_joins_milestones.where(milestones: { title: title }) }
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scope :opened, -> { with_state(:opened) }
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scope :only_opened, -> { with_state(:opened) }
scope :closed, -> { with_state(:closed) }
scope :left_joins_milestones, -> { joins("LEFT OUTER JOIN milestones ON #{table_name}.milestone_id = milestones.id") }
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 }) }
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scope :join_project, -> { joins(:project) }
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scope :inc_notes_with_associations, -> { includes(notes: [:project, :author, :award_emoji]) }
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scope :references_project, -> { references(:project) }
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scope :non_archived, -> { join_project.where(projects: { archived: false }) }
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attr_mentionable :title, pipeline: :single_line
attr_mentionable :description
participant :author
participant :notes_with_associations
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strip_attributes :title
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after_save :ensure_metrics, unless: :imported?
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# 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
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def allows_multiple_assignees?
false
end
def has_multiple_assignees?
assignees.count > 1
end
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end
module ClassMethods
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# 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.
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def search(query)
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fuzzy_search(query, [:title])
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end
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# 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.
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def full_search(query)
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fuzzy_search(query, [:title, :description])
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end
def sort(method, excluded_labels: [])
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sorted =
case method.to_s
when 'downvotes_desc' then order_downvotes_desc
when 'label_priority' then order_labels_priority(excluded_labels: excluded_labels)
when 'milestone' then order_milestone_due_asc
when 'milestone_due_asc' then order_milestone_due_asc
when 'milestone_due_desc' then order_milestone_due_desc
when 'popularity' then order_upvotes_desc
when 'priority' then order_due_date_and_labels_priority(excluded_labels: excluded_labels)
when 'upvotes_desc' then order_upvotes_desc
else order_by(method)
end
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# Break ties with the ID column for pagination
sorted.order(id: :desc)
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end
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def order_due_date_and_labels_priority(excluded_labels: [])
# The order_ methods also modify the query in other ways:
#
# - For milestones, we add a JOIN.
# - For label priority, we change the SELECT, and add a GROUP BY.#
#
# After doing those, we need to reorder to the order we want. The existing
# ORDER BYs won't work because:
#
# 1. We need milestone due date first.
# 2. We can't ORDER BY a column that isn't in the GROUP BY and doesn't
# have an aggregate function applied, so we do a useless MIN() instead.
#
milestones_due_date = 'MIN(milestones.due_date)'
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order_milestone_due_asc
.order_labels_priority(excluded_labels: excluded_labels, extra_select_columns: [milestones_due_date])
.reorder(Gitlab::Database.nulls_last_order(milestones_due_date, 'ASC'),
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Gitlab::Database.nulls_last_order('highest_priority', 'ASC'))
end
def order_labels_priority(excluded_labels: [], extra_select_columns: [])
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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_columns = [
"#{table_name}.*",
"(#{highest_priority}) AS highest_priority"
] + extra_select_columns
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select(select_columns.join(', '))
.group(arel_table[:id])
.reorder(Gitlab::Database.nulls_last_order('highest_priority', 'ASC'))
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end
def with_label(title, sort = nil)
if title.is_a?(Array) && title.size > 1
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
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end
# Includes table keys in group by clause when sorting
# preventing errors in postgres
#
# Returns an array of arel columns
def grouping_columns(sort)
grouping_columns = [arel_table[:id]]
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if %w(milestone_due_desc milestone_due_asc milestone).include?(sort)
milestone_table = Milestone.arel_table
grouping_columns << milestone_table[:id]
grouping_columns << milestone_table[:due_date]
end
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grouping_columns
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end
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def to_ability_name
model_name.singular
end
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def parent_class
::Project
end
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end
def today?
Date.today == created_at.to_date
end
def new?
today? && created_at == updated_at
end
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def open?
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opened?
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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
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def subscribed_without_subscriptions?(user, project)
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participants(user).include?(user)
end
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def to_hook_data(user, old_associations: {})
changes = previous_changes
old_labels = old_associations.fetch(:labels, [])
old_assignees = old_associations.fetch(:assignees, [])
if old_labels != labels
changes[:labels] = [old_labels.map(&:hook_attrs), labels.map(&:hook_attrs)]
end
if old_assignees != assignees
if self.is_a?(Issue)
changes[:assignees] = [old_assignees.map(&:hook_attrs), assignees.map(&:hook_attrs)]
else
changes[:assignee] = [old_assignees&.first&.hook_attrs, assignee&.hook_attrs]
end
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end
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if self.respond_to?(:total_time_spent)
old_total_time_spent = old_associations.fetch(:total_time_spent, nil)
if old_total_time_spent != total_time_spent
changes[:total_time_spent] = [old_total_time_spent, total_time_spent]
end
end
Gitlab::HookData::IssuableBuilder.new(self).build(user: user, changes: changes)
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end
def labels_array
labels.to_a
end
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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
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self.class.to_ability_name
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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
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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.
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includes = []
includes << :author unless notes.authors_loaded?
includes << :award_emoji unless notes.award_emojis_loaded?
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if includes.any?
notes.includes(includes)
else
notes
end
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end
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def updated_tasks
Taskable.get_updated_tasks(old_content: previous_changes['description'].first,
new_content: description)
end
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##
# Method that checks if issuable can be moved to another project.
#
# Should be overridden if issuable can be moved.
#
def can_move?(*)
false
end
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##
# Override in issuable specialization
#
def first_contribution?
false
end
def ensure_metrics
self.metrics || create_metrics
end
##
# Overriden in MergeRequest
#
def wipless_title_changed(old_title)
old_title != title
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end
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end