gitlab-org--gitlab-foss/app/models/discussion.rb
Paco Guzman 8716ff7f63 Speedup DiffNote#active? on discussions, preloading noteables and avoid touching git repository to return diff_refs when possible
- Preloading noteable we share the same noteable instance when more than one 
discussion refers to the same noteable.
- Any other call to that object that is cached in that object will be for any 
discussion.
- In those cases where merge_request_diff has all the sha stored to build a diff_refs get that 
diff_refs using directly those sha instead accessing to the git repository to first get the 
commits and later the sha.
2016-08-02 16:04:15 +02:00

97 lines
1.8 KiB
Ruby

class Discussion
NUMBER_OF_TRUNCATED_DIFF_LINES = 16
attr_reader :first_note, :notes
delegate :created_at,
:project,
:author,
:noteable,
:for_commit?,
:for_merge_request?,
:line_code,
:diff_file,
:for_line?,
:active?,
to: :first_note
delegate :blob, :highlighted_diff_lines, to: :diff_file, allow_nil: true
def self.for_notes(notes)
notes.group_by(&:discussion_id).values.map { |notes| new(notes) }
end
def self.for_diff_notes(notes)
notes.group_by(&:line_code).values.map { |notes| new(notes) }
end
def initialize(notes)
@first_note = notes.first
@notes = notes
end
def id
first_note.discussion_id
end
def diff_discussion?
first_note.diff_note?
end
def legacy_diff_discussion?
notes.any?(&:legacy_diff_note?)
end
def for_target?(target)
self.noteable == target && !diff_discussion?
end
def active?
return @active if defined?(@active)
@active = first_note.active?
end
def expanded?
!diff_discussion? || active?
end
def reply_attributes
data = {
noteable_type: first_note.noteable_type,
noteable_id: first_note.noteable_id,
commit_id: first_note.commit_id,
discussion_id: self.id,
}
if diff_discussion?
data[:note_type] = first_note.type
data.merge!(first_note.diff_attributes)
end
data
end
# Returns an array of at most 16 highlighted lines above a diff note
def truncated_diff_lines
prev_lines = []
highlighted_diff_lines.each do |line|
if line.meta?
prev_lines.clear
else
prev_lines << line
break if for_line?(line)
prev_lines.shift if prev_lines.length >= NUMBER_OF_TRUNCATED_DIFF_LINES
end
end
prev_lines
end
end