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class DiffDiscussion < Discussion
NUMBER_OF_TRUNCATED_DIFF_LINES = 16
delegate :line_code,
:original_line_code,
:diff_file,
:for_line?,
:active?,
to: :first_note
delegate :blob,
:highlighted_diff_lines,
:diff_lines,
to: :diff_file,
allow_nil: true
def self.build_discussion_id(note)
[*super(note), *unique_position_identifier(note)]
end
def self.build_original_discussion_id(note)
[*Discussion.build_discussion_id(note), *note.original_position.key]
end
def self.unique_position_identifier(note)
note.position.key
end
def diff_discussion?
true
end
def legacy_diff_discussion?
false
end
def active?
return @active if @active.present?
@active = first_note.active?
end
MEMOIZED_VALUES << :active
def reply_attributes
super.merge(first_note.diff_attributes)
end
# Returns an array of at most 16 highlighted lines above a diff note
def truncated_diff_lines(highlight: true)
lines = highlight ? highlighted_diff_lines : diff_lines
prev_lines = []
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
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