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

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# == Schema Information
#
# Table name: notes
#
# id :integer not null, primary key
# note :text
# noteable_type :string(255)
# author_id :integer
# created_at :datetime
# updated_at :datetime
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# project_id :integer
# attachment :string(255)
# line_code :string(255)
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# commit_id :string(255)
# noteable_id :integer
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# system :boolean default(FALSE), not null
# st_diff :text
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# updated_by_id :integer
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#
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require 'carrierwave/orm/activerecord'
require 'file_size_validator'
class Note < ActiveRecord::Base
include Gitlab::CurrentSettings
include Participable
include Mentionable
default_value_for :system, false
attr_mentionable :note
participant :author
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belongs_to :project
belongs_to :noteable, polymorphic: true
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belongs_to :author, class_name: "User"
belongs_to :updated_by, class_name: "User"
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delegate :name, to: :project, prefix: true
delegate :name, :email, to: :author, prefix: true
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validates :note, :project, presence: true
validates :line_code, format: { with: /\A[a-z0-9]+_\d+_\d+\Z/ }, allow_blank: true
# Attachments are deprecated and are handled by Markdown uploader
validates :attachment, file_size: { maximum: :max_attachment_size }
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validates :noteable_id, presence: true, if: ->(n) { n.noteable_type.present? && n.noteable_type != 'Commit' }
validates :commit_id, presence: true, if: ->(n) { n.noteable_type == 'Commit' }
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mount_uploader :attachment, AttachmentUploader
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# Scopes
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scope :for_commit_id, ->(commit_id) { where(noteable_type: "Commit", commit_id: commit_id) }
scope :inline, ->{ where("line_code IS NOT NULL") }
scope :not_inline, ->{ where(line_code: [nil, '']) }
scope :system, ->{ where(system: true) }
scope :user, ->{ where(system: false) }
scope :common, ->{ where(noteable_type: ["", nil]) }
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scope :fresh, ->{ order(created_at: :asc, id: :asc) }
scope :inc_author_project, ->{ includes(:project, :author) }
scope :inc_author, ->{ includes(:author) }
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scope :with_associations, -> do
includes(:author, :noteable, :updated_by,
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project: [:project_members, { group: [:group_members] }])
end
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serialize :st_diff
before_create :set_diff, if: ->(n) { n.line_code.present? }
class << self
def discussions_from_notes(notes)
discussion_ids = []
discussions = []
notes.each do |note|
next if discussion_ids.include?(note.discussion_id)
# don't group notes for the main target
if !note.for_diff_line? && note.noteable_type == "MergeRequest"
discussions << [note]
else
discussions << notes.select do |other_note|
note.discussion_id == other_note.discussion_id
end
discussion_ids << note.discussion_id
end
end
discussions
end
def build_discussion_id(type, id, line_code)
[:discussion, type.try(:underscore), id, line_code].join("-").to_sym
end
def search(query)
where("LOWER(note) like :query", query: "%#{query.downcase}%")
end
end
def cross_reference?
system && SystemNoteService.cross_reference?(note)
end
def max_attachment_size
current_application_settings.max_attachment_size.megabytes.to_i
end
def find_diff
return nil unless noteable && noteable.diffs.present?
@diff ||= noteable.diffs.find do |d|
Digest::SHA1.hexdigest(d.new_path) == diff_file_index if d.new_path
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end
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end
def hook_attrs
attributes
end
def set_diff
# First lets find notes with same diff
# before iterating over all mr diffs
diff = diff_for_line_code unless for_merge_request?
diff ||= find_diff
self.st_diff = diff.to_hash if diff
end
def diff
@diff ||= Gitlab::Git::Diff.new(st_diff) if st_diff.respond_to?(:map)
end
def diff_for_line_code
Note.where(noteable_id: noteable_id, noteable_type: noteable_type, line_code: line_code).last.try(:diff)
end
# Check if such line of code exists in merge request diff
# If exists - its active discussion
# If not - its outdated diff
def active?
return true unless self.diff
return false unless noteable
noteable.diffs.each do |mr_diff|
next unless mr_diff.new_path == self.diff.new_path
lines = Gitlab::Diff::Parser.new.parse(mr_diff.diff.lines.to_a)
lines.each do |line|
if line.text == diff_line
return true
end
end
end
false
end
def outdated?
!active?
end
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def diff_file_index
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line_code.split('_')[0] if line_code
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end
def diff_file_name
diff.new_path if diff
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end
def file_path
if diff.new_path.present?
diff.new_path
elsif diff.old_path.present?
diff.old_path
end
end
def diff_old_line
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line_code.split('_')[1].to_i if line_code
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end
def diff_new_line
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line_code.split('_')[2].to_i if line_code
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end
def generate_line_code(line)
Gitlab::Diff::LineCode.generate(file_path, line.new_pos, line.old_pos)
end
def diff_line
return @diff_line if @diff_line
if diff
diff_lines.each do |line|
if generate_line_code(line) == self.line_code
@diff_line = line.text
end
end
end
@diff_line
end
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def diff_line_type
return @diff_line_type if @diff_line_type
if diff
diff_lines.each do |line|
if generate_line_code(line) == self.line_code
@diff_line_type = line.type
end
end
end
@diff_line_type
end
def truncated_diff_lines
max_number_of_lines = 16
prev_match_line = nil
prev_lines = []
diff_lines.each do |line|
if line.type == "match"
prev_lines.clear
prev_match_line = line
else
prev_lines << line
break if generate_line_code(line) == self.line_code
prev_lines.shift if prev_lines.length >= max_number_of_lines
end
end
prev_lines
end
def diff_lines
@diff_lines ||= Gitlab::Diff::Parser.new.parse(diff.diff.lines.to_a)
end
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def discussion_id
@discussion_id ||= Note.build_discussion_id(noteable_type, noteable_id || commit_id, line_code)
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end
def for_commit?
noteable_type == "Commit"
end
def for_commit_diff_line?
for_commit? && for_diff_line?
end
def for_diff_line?
line_code.present?
end
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def for_issue?
noteable_type == "Issue"
end
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def for_merge_request?
noteable_type == "MergeRequest"
end
def for_merge_request_diff_line?
for_merge_request? && for_diff_line?
end
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def for_project_snippet?
noteable_type == "Snippet"
end
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# override to return commits, which are not active record
def noteable
if for_commit?
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project.commit(commit_id)
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else
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super
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end
# Temp fix to prevent app crash
# if note commit id doesn't exist
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rescue
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nil
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end
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DOWNVOTES = %w(-1 :-1: :thumbsdown: :thumbs_down_sign:)
# Check if the note is a downvote
def downvote?
votable? && note.start_with?(*DOWNVOTES)
end
UPVOTES = %w(+1 :+1: :thumbsup: :thumbs_up_sign:)
# Check if the note is an upvote
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def upvote?
votable? && note.start_with?(*UPVOTES)
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end
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def superceded?(notes)
return false unless vote?
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notes.each do |note|
next if note == self
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if note.vote? &&
self[:author_id] == note[:author_id] &&
self[:created_at] <= note[:created_at]
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return true
end
end
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false
end
def vote?
upvote? || downvote?
end
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def votable?
for_issue? || (for_merge_request? && !for_diff_line?)
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end
# Mentionable override.
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def gfm_reference(from_project = nil)
noteable.gfm_reference(from_project)
end
# Mentionable override.
def local_reference
noteable
end
def noteable_type_name
noteable_type.downcase if noteable_type.present?
end
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# FIXME: Hack for polymorphic associations with STI
# For more information visit http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html#label-Polymorphic+Associations
def noteable_type=(noteable_type)
super(noteable_type.to_s.classify.constantize.base_class.to_s)
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end
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# Reset notes events cache
#
# Since we do cache @event we need to reset cache in special cases:
# * when a note is updated
# * when a note is removed
# Events cache stored like events/23-20130109142513.
# The cache key includes updated_at timestamp.
# Thus it will automatically generate a new fragment
# when the event is updated because the key changes.
def reset_events_cache
Event.reset_event_cache_for(self)
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end
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def system?
read_attribute(:system)
end
def editable?
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!system?
end
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end