Class: Gitlab::DiscussionsDiff::FileCollection

Inherits:
Object
  • Object
show all
Includes:
Enumerable, Utils::StrongMemoize
Defined in:
lib/gitlab/discussions_diff/file_collection.rb

Instance Method Summary collapse

Methods included from Utils::StrongMemoize

#clear_memoization, #strong_memoize, #strong_memoized?

Constructor Details

#initialize(collection) ⇒ FileCollection

Returns a new instance of FileCollection.


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# File 'lib/gitlab/discussions_diff/file_collection.rb', line 9

def initialize(collection)
  @collection = collection
end

Instance Method Details

#each(&block) ⇒ Object


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# File 'lib/gitlab/discussions_diff/file_collection.rb', line 13

def each(&block)
  @collection.each(&block)
end

#find_by_id(id) ⇒ Object

Returns a Gitlab::Diff::File with the given ID (`unique_identifier` in Gitlab::Diff::File).


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# File 'lib/gitlab/discussions_diff/file_collection.rb', line 19

def find_by_id(id)
  diff_files_indexed_by_id[id]
end

#load_highlightObject

Writes cache and preloads highlighted diff lines for highlightable object IDs, in @collection.

  • Highlight cache is written just for uncached diff files

  • The cache content is not updated (there's no need to do so)


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# File 'lib/gitlab/discussions_diff/file_collection.rb', line 28

def load_highlight
  ids = highlightable_collection_ids
  return if ids.empty?

  cached_content = read_cache(ids)

  uncached_ids = ids.select.each_with_index { |_, i| cached_content[i].nil? }
  mapping = highlighted_lines_by_ids(uncached_ids)

  HighlightCache.write_multiple(mapping) if mapping.any?

  diffs = diff_files_indexed_by_id.values_at(*ids)

  diffs.zip(cached_content).each do |diff, cached_lines|
    next unless diff && cached_lines

    diff.highlighted_diff_lines = cached_lines
  end
end