gitlab-org--gitlab-foss/app/models/note.rb
2015-04-24 12:31:16 +02:00

579 lines
15 KiB
Ruby

# == 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
# project_id :integer
# attachment :string(255)
# line_code :string(255)
# commit_id :string(255)
# noteable_id :integer
# system :boolean default(FALSE), not null
# st_diff :text
#
require 'carrierwave/orm/activerecord'
require 'file_size_validator'
class Note < ActiveRecord::Base
include Mentionable
include Gitlab::CurrentSettings
include Participable
default_value_for :system, false
attr_mentionable :note
participant :author, :mentioned_users
belongs_to :project
belongs_to :noteable, polymorphic: true
belongs_to :author, class_name: "User"
delegate :name, to: :project, prefix: true
delegate :name, :email, to: :author, prefix: true
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 }
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' }
mount_uploader :attachment, AttachmentUploader
# Scopes
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]) }
scope :fresh, ->{ order(created_at: :asc, id: :asc) }
scope :inc_author_project, ->{ includes(:project, :author) }
scope :inc_author, ->{ includes(:author) }
serialize :st_diff
before_create :set_diff, if: ->(n) { n.line_code.present? }
after_update :set_references
class << self
def create_status_change_note(noteable, project, author, status, source)
body = "Status changed to #{status}#{' by ' + source.gfm_reference if source}"
create(
noteable: noteable,
project: project,
author: author,
note: body,
system: true
)
end
# +noteable+ was referenced from +mentioner+, by including GFM in either
# +mentioner+'s description or an associated Note.
# Create a system Note associated with +noteable+ with a GFM back-reference
# to +mentioner+.
def create_cross_reference_note(noteable, mentioner, author)
gfm_reference = mentioner_gfm_ref(noteable, mentioner)
note_options = {
project: noteable.project,
author: author,
note: cross_reference_note_content(gfm_reference),
system: true
}
if noteable.kind_of?(Commit)
note_options.merge!(noteable_type: 'Commit', commit_id: noteable.id)
else
note_options.merge!(noteable: noteable)
end
create(note_options) unless cross_reference_disallowed?(noteable, mentioner)
end
def create_milestone_change_note(noteable, project, author, milestone)
body = if milestone.nil?
'Milestone removed'
else
"Milestone changed to #{milestone.title}"
end
create(
noteable: noteable,
project: project,
author: author,
note: body,
system: true
)
end
def create_assignee_change_note(noteable, project, author, assignee)
body = assignee.nil? ? 'Assignee removed' : "Reassigned to @#{assignee.username}"
create({
noteable: noteable,
project: project,
author: author,
note: body,
system: true
})
end
def create_labels_change_note(noteable, project, author, added_labels, removed_labels)
labels_count = added_labels.count + removed_labels.count
added_labels = added_labels.map{ |label| "~#{label.id}" }.join(' ')
removed_labels = removed_labels.map{ |label| "~#{label.id}" }.join(' ')
message = ''
if added_labels.present?
message << "added #{added_labels}"
end
if added_labels.present? && removed_labels.present?
message << ' and '
end
if removed_labels.present?
message << "removed #{removed_labels}"
end
message << ' ' << 'label'.pluralize(labels_count)
body = "#{message.capitalize}"
create(
noteable: noteable,
project: project,
author: author,
note: body,
system: true
)
end
def create_new_commits_note(merge_request, project, author, new_commits, existing_commits = [], oldrev = nil)
total_count = new_commits.length + existing_commits.length
commits_text = ActionController::Base.helpers.pluralize(total_count, 'commit')
body = "Added #{commits_text}:\n\n"
if existing_commits.length > 0
commit_ids =
if existing_commits.length == 1
existing_commits.first.short_id
else
if oldrev
"#{Commit.truncate_sha(oldrev)}...#{existing_commits.last.short_id}"
else
"#{existing_commits.first.short_id}..#{existing_commits.last.short_id}"
end
end
commits_text = ActionController::Base.helpers.pluralize(existing_commits.length, 'commit')
branch =
if merge_request.for_fork?
"#{merge_request.target_project_namespace}:#{merge_request.target_branch}"
else
merge_request.target_branch
end
message = "* #{commit_ids} - #{commits_text} from branch `#{branch}`"
body << message
body << "\n"
end
new_commits.each do |commit|
message = "* #{commit.short_id} - #{commit.title}"
body << message
body << "\n"
end
create(
noteable: merge_request,
project: project,
author: author,
note: body,
system: true
)
end
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
# Determine if cross reference note should be created.
# eg. mentioning a commit in MR comments which exists inside a MR
# should not create "mentioned in" note.
def cross_reference_disallowed?(noteable, mentioner)
if mentioner.kind_of?(MergeRequest)
mentioner.commits.map(&:id).include? noteable.id
end
end
# Determine whether or not a cross-reference note already exists.
def cross_reference_exists?(noteable, mentioner)
gfm_reference = mentioner_gfm_ref(noteable, mentioner, true)
notes = if noteable.is_a?(Commit)
where(commit_id: noteable.id, noteable_type: 'Commit')
else
where(noteable_id: noteable.id, noteable_type: noteable.class)
end
notes.where('note like ?', cross_reference_note_pattern(gfm_reference)).
system.any?
end
def search(query)
where("note like :query", query: "%#{query}%")
end
def cross_reference_note_prefix
'mentioned in '
end
private
def cross_reference_note_content(gfm_reference)
cross_reference_note_prefix + "#{gfm_reference}"
end
def cross_reference_note_pattern(gfm_reference)
# Older cross reference notes contained underscores for emphasis
"%" + cross_reference_note_content(gfm_reference) + "%"
end
# Prepend the mentioner's namespaced project path to the GFM reference for
# cross-project references. For same-project references, return the
# unmodified GFM reference.
def mentioner_gfm_ref(noteable, mentioner, cross_reference = false)
if mentioner.is_a?(Commit) && cross_reference
return mentioner.gfm_reference.sub('commit ', 'commit %')
end
full_gfm_reference(mentioner.project, noteable.project, mentioner)
end
# Return the +mentioner+ GFM reference. If the mentioner and noteable
# projects are not the same, add the mentioning project's path to the
# returned value.
def full_gfm_reference(mentioning_project, noteable_project, mentioner)
if mentioning_project == noteable_project
mentioner.gfm_reference
else
if mentioner.is_a?(Commit)
mentioner.gfm_reference.sub(
/(commit )/,
"\\1#{mentioning_project.path_with_namespace}@"
)
else
mentioner.gfm_reference.sub(
/(issue |merge request )/,
"\\1#{mentioning_project.path_with_namespace}"
)
end
end
end
end
def max_attachment_size
current_application_settings.max_attachment_size.megabytes.to_i
end
def cross_reference?
note.start_with?(self.class.cross_reference_note_prefix)
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
end
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
def diff_file_index
line_code.split('_')[0] if line_code
end
def diff_file_name
diff.new_path if diff
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
line_code.split('_')[1].to_i if line_code
end
def diff_new_line
line_code.split('_')[2].to_i if line_code
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
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
def discussion_id
@discussion_id ||= Note.build_discussion_id(noteable_type, noteable_id || commit_id, line_code)
end
# Returns true if this is a downvote note,
# otherwise false is returned
def downvote?
votable? && (note.start_with?('-1') ||
note.start_with?(':-1:') ||
note.start_with?(':thumbsdown:') ||
note.start_with?(':thumbs_down_sign:')
)
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
def for_issue?
noteable_type == "Issue"
end
def for_merge_request?
noteable_type == "MergeRequest"
end
def for_merge_request_diff_line?
for_merge_request? && for_diff_line?
end
def for_project_snippet?
noteable_type == "Snippet"
end
# override to return commits, which are not active record
def noteable
if for_commit?
project.commit(commit_id)
else
super
end
# Temp fix to prevent app crash
# if note commit id doesn't exist
rescue
nil
end
# Returns true if this is an upvote note,
# otherwise false is returned
def upvote?
votable? && (note.start_with?('+1') ||
note.start_with?(':+1:') ||
note.start_with?(':thumbsup:') ||
note.start_with?(':thumbs_up_sign:')
)
end
def superceded?(notes)
return false unless vote?
notes.each do |note|
next if note == self
if note.vote? &&
self[:author_id] == note[:author_id] &&
self[:created_at] <= note[:created_at]
return true
end
end
false
end
def vote?
upvote? || downvote?
end
def votable?
for_issue? || (for_merge_request? && !for_diff_line?)
end
# Mentionable override.
def gfm_reference
noteable.gfm_reference
end
# Mentionable override.
def local_reference
noteable
end
def noteable_type_name
if noteable_type.present?
noteable_type.downcase
end
end
# 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=(sType)
super(sType.to_s.classify.constantize.base_class.to_s)
end
# 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)
end
def set_references
notice_added_references(project, author)
end
def editable?
!read_attribute(:system)
end
end