Class: Pdf::Label::StorageLocationItem

Inherits:
BaseService
  • Object
show all
Defined in:
app/services/pdf/label/storage_location_item.rb

Defined Under Namespace

Classes: Result

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#renderer ⇒ Object (readonly)

Returns the value of attribute renderer.



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# File 'app/services/pdf/label/storage_location_item.rb', line 10

def renderer
  @renderer
end

Class Method Details

.call(*args, **kwargs, &block) ⇒ Object 



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# File 'app/services/pdf/label/storage_location_item.rb', line 6

def self.call(*args, **kwargs, &block)
  new.call(*args, **kwargs, &block)
end

Instance Method Details

#call(items: nil, storage_locations: nil) ⇒ Object 



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# File 'app/services/pdf/label/storage_location_item.rb', line 12

def call(items: nil, storage_locations: nil)
  Pdf::Loader.load!
  require 'down'
  raise 'Specify items or storage_locations' if items.nil? && storage_locations.nil?

  composer = HexaPDF::Composer.new(skip_page_creation: false, page_size: [0, 0, 288, 166.5], page_orientation: :landscape, margin: 10)

  dejavu = composer.document.fonts.add('data/fonts/DejaVuSans.ttf')
  composer.document.config['font.fallback'] = [dejavu]

  composer.document.config['font.on_invalid_glyph'] = lambda do |codepoint, _glyph|
    [dejavu.decode_codepoint(codepoint)]
  end

  items ||= Item.joins(store_items: :storage_locations).includes(:primary_image).merge(storage_locations)

  image_downloads = download_images(items)

  items.each do |item|
    image = image_downloads[item.primary_image_id]
    add_item_page(composer, item, image)
  end

  pdf_io = StringIO.new
  composer.write(pdf_io, optimize: true)
  pdf_io.rewind

  pdf_data = pdf_io.read

  Result.new(pdf: pdf_data, file_name: 'storage_locations_items.pdf')
end