Module: Paperclip::Ext
- Defined in:
- lib/dm-paperclip/ext/blank.rb,
lib/dm-paperclip/ext/class.rb,
lib/dm-paperclip/ext/try_dup.rb
Defined Under Namespace
Modules: Class
Class Method Summary collapse
-
.blank?(value) ⇒ Boolean
Determines whether the specified
value
is blank. - .try_dup(value) ⇒ Object
Class Method Details
.blank?(value) ⇒ Boolean
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.
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# 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) ⇒ Object
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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 |