class Paperclip::Document::Processors::Counter

This processor extract the OCR text of the file

Attributes

pages_count_column[RW]

Public Class Methods

new(file, options = {}, attachment = nil) click to toggle source
Calls superclass method Paperclip::Document::Processor::new
# File lib/paperclip/document/processors/counter.rb, line 8
def initialize(file, options = {}, attachment = nil)
  super(file, options, attachment)
  if @options[:pages_count_column].nil? && pages_count_column?
    @options[:pages_count_column] = default_pages_count_column
  end
  @pages_count_column = @options[:pages_count_column]

  unless @pages_count_column
    raise Paperclip::Error, 'No pages count column given'
  end
end

Public Instance Methods

default_pages_count_column() click to toggle source

Returns the name of the default pages count column

# File lib/paperclip/document/processors/counter.rb, line 39
def default_pages_count_column
  @attachment.name.to_s + '_pages_count'
end
make() click to toggle source

Extract the pages count of all the document

# File lib/paperclip/document/processors/counter.rb, line 21
def make
  count = Docsplit.extract_length(file_path.to_s)

  instance[pages_count_column] = count
  instance.run_callbacks(:save) { false }

  File.open(file.path)
end
pages_count_column?() click to toggle source

Check if a pages count column is present

# File lib/paperclip/document/processors/counter.rb, line 31
def pages_count_column?
  expected_column = default_pages_count_column
  @attachment.instance.class.columns.detect do |column|
    column.name.to_s == expected_column
  end
end