module Paperclip::Ext
Public Class Methods
blank?(value)
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Determines whether the specified value
is blank.
An object is blank if it's false, empty, or a whitespace string. For
example, “”, “ ”, nil
, [], and {} are blank.
@api semipublic
# File lib/dm-paperclip/ext/blank.rb, line 9 def self.blank?(value) case value when ::NilClass, ::FalseClass true when ::TrueClass, ::Numeric false when ::Array, ::Hash value.empty? when ::String value !~ /\S/ else value.nil? || (value.respond_to?(:empty?) && value.empty?) end end
try_dup(value)
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# File lib/dm-paperclip/ext/try_dup.rb, line 3 def self.try_dup(value) case value when ::TrueClass, ::FalseClass, ::NilClass, ::Module, ::Numeric, ::Symbol value else value.dup end end