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EDITING: transform_proxy.rb

# frozen_string_literal: true

#
# Copyright (C) 2017 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
class BookmarkedCollection::TransformedCollection < BookmarkedCollection::Collection
  def initialize(bookmarker)
    @bookmarks = []
    super bookmarker
  end

def add(item, bookmark)
    self << item
    @bookmarks << bookmark
  end

def shift
    item = super
    @bookmarks.shift
    item
  end

def bookmark_for(item)
    @bookmarks[index(item)]
  end

def leaf_bookmark_for(item)
    bookmark_for(item)
  end
end

class BookmarkedCollection::TransformProxy < BookmarkedCollection::Proxy
  def initialize(collection, &transform_proc)
    @collection = collection
    @transform_proc = transform_proc
    @bookmarks = []
    super(@collection.new_pager, nil)
  end

def new_pager
    BookmarkedCollection::TransformedCollection.new(@bookmarker)
  end

def execute_pager(pager)
    sub_pager = @collection.new_pager
    sub_pager.current_bookmark = pager.current_bookmark
    sub_pager.per_page = pager.per_page
    sub_pager = @collection.execute_pager(sub_pager)
    sub_pager.each do |x|
      bookmark = sub_pager.bookmark_for(x)
      pager.add(@transform_proc.call(x), bookmark)
    end
    pager.has_more! if sub_pager.next_page
    pager
  end
end

CANCEL

Name	Type	Size	Modified	Actions
↩ ..	DIR	—	—
📄 collection.rb	RB	3.3 KB	2023-09-24 03:36	EDIT
📄 composite_collection.rb	RB	1.8 KB	2023-09-24 03:36	EDIT
📄 composite_proxy.rb	RB	1.2 KB	2023-09-24 03:36	EDIT
📄 concat_collection.rb	RB	961 B	2023-09-24 03:36	EDIT
📄 concat_proxy.rb	RB	2.4 KB	2023-09-24 03:36	EDIT
📄 filter_proxy.rb	RB	1.9 KB	2023-09-24 03:36	EDIT
📄 merge_proxy.rb	RB	3.4 KB	2023-09-24 03:36	EDIT
📄 proxy.rb	RB	1.1 KB	2023-09-24 03:36	EDIT
📄 simple_bookmarker.rb	RB	7.9 KB	2023-09-24 03:36	EDIT
📄 transform_proxy.rb	RB	1.8 KB	2023-09-24 03:36	EDIT
📄 wrap_proxy.rb	RB	1.2 KB	2023-09-24 03:36	EDIT