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file_mover.rb 1.35 KB
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class FileMover
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  attr_reader :secret, :file_name, :model, :update_field
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  def initialize(file_path, model, update_field = :description)
    @secret = File.split(File.dirname(file_path)).last
    @file_name = File.basename(file_path)
    @model = model
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    @update_field = update_field
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  end

  def execute
    move
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    uploader.record_upload if update_markdown
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  end

  private

  def move
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    FileUtils.mkdir_p(File.dirname(file_path))
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    FileUtils.move(temp_file_path, file_path)
  end

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  def update_markdown
    updated_text = model.read_attribute(update_field).gsub(temp_file_uploader.to_markdown, uploader.to_markdown)
    model.update_attribute(update_field, updated_text)

    true
  rescue
    revert

    false
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  end

  def temp_file_path
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    return @temp_file_path if @temp_file_path

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    temp_file_uploader.retrieve_from_store!(file_name)

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    @temp_file_path = temp_file_uploader.file.path
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  end

  def file_path
    return @file_path if @file_path

    uploader.retrieve_from_store!(file_name)

    @file_path = uploader.file.path
  end

  def uploader
    @uploader ||= PersonalFileUploader.new(model, secret)
  end

  def temp_file_uploader
    @temp_file_uploader ||= PersonalFileUploader.new(nil, secret)
  end
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  def revert
    Rails.logger.warn("Markdown not updated, file move reverted for #{model}")

    FileUtils.move(file_path, temp_file_path)
  end
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end