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module ActiveSupport #:nodoc:
module CoreExtensions #:nodoc:
module Array #:nodoc:
# Enables to conversion of Arrays to human readable lists. ['one', 'two', 'three'] => "one, two, and three"
module Conversions
# Converts the array to comma-seperated sentence where the last element is joined by the connector word. Options:
# * <tt>:connector</tt>: The word used to join the last element in arrays with more than two elements (default: "and")
# * <tt>:skip_last_comma</tt>: Set to true to return "a, b and c" instead of "a, b, and c".
def to_sentence(options = {})
options.assert_valid_keys(:connector, :skip_last_comma)
options.reverse_merge! :connector => 'and', :skip_last_comma => false
case length
when 1
self[0]
when 2
"#{self[0]} #{options[:connector]} #{self[1]}"
else
"#{self[0...-1].join(', ')}#{options[:skip_last_comma] ? '' : ','} #{options[:connector]} #{self[-1]}"
end
end
# When an array is given to url_for, it is converted to a slash separated string.
def to_param
join '/'
end
def to_strings
map { |element| element.to_s }
end
end
end
end
end
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