Class: Array

Inherits:
Object
  • Object
show all
Defined in:
lib/previews/array.rb

Instance Method Summary collapse

Instance Method Details

#parse_date_time ⇒ Object

Parses all ‘date_created’ fields to DateTime object



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# File 'lib/previews/array.rb', line 28

def parse_date_time
  self.each do |review|
    review['date_created'] = DateTime.parse(review['date_created'])
  end
end

#print_with(fields, system_less) ⇒ Object

Using Hirb to print reviews. :fields is fields to display print out :vertical table HEADERS is Hash of headers passing system_less as a option



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# File 'lib/previews/array.rb', line 7

def print_with(fields, system_less)
  extend Hirb::Console
  table self, :fields      => fields,
              :vertical    => true,
              :headers     => HEADERS,
              :system_less => system_less
end

#replace_rating_with(up, empty) ⇒ Object

Replace each review’s rating into some symbols Usage: array.replace_rating_with(“★”, “☆”)



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# File 'lib/previews/array.rb', line 36

def replace_rating_with(up, empty)
  self.each do |review|
    review['rating'] = up * review['rating'] + empty * (5 - review['rating'])
  end
end

#sort_with!(field, direction) ⇒ Object

By default reviews sorted by usefulness. We can reverse it to sort by ascending For others fields we sorting by comparing each element of Array



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# File 'lib/previews/array.rb', line 17

def sort_with!(field, direction)
  return self          if 'usefulness' == field && 'desc' == direction
  return self.reverse! if 'usefulness' == field && 'asc'  == direction
  if 'asc' == direction
    self.sort! { |review1, review2| review1[field] <=> review2[field]}
  elsif 'desc' == direction
    self.sort! { |review1, review2| review2[field] <=> review1[field]}
  end
end