diff options
Diffstat (limited to 'actionmailer/lib/action_mailer/vendor/tmail-1.2.2/tmail/core_extensions.rb')
-rw-r--r-- | actionmailer/lib/action_mailer/vendor/tmail-1.2.2/tmail/core_extensions.rb | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/actionmailer/lib/action_mailer/vendor/tmail-1.2.2/tmail/core_extensions.rb b/actionmailer/lib/action_mailer/vendor/tmail-1.2.2/tmail/core_extensions.rb new file mode 100644 index 0000000000..cc24e97778 --- /dev/null +++ b/actionmailer/lib/action_mailer/vendor/tmail-1.2.2/tmail/core_extensions.rb @@ -0,0 +1,67 @@ +=begin rdoc + += Ruby on Rails Core Extensions + +provides .blank? + +=end +unless Object.respond_to?(:blank?) #:nodoc: + # Check first to see if we are in a Rails environment, no need to + # define these methods if we are + class Object + # An object is blank if it's nil, empty, or a whitespace string. + # For example, "", " ", nil, [], and {} are blank. + # + # This simplifies + # if !address.nil? && !address.empty? + # to + # if !address.blank? + def blank? + if respond_to?(:empty?) && respond_to?(:strip) + empty? or strip.empty? + elsif respond_to?(:empty?) + empty? + else + !self + end + end + end + + class NilClass #:nodoc: + def blank? + true + end + end + + class FalseClass #:nodoc: + def blank? + true + end + end + + class TrueClass #:nodoc: + def blank? + false + end + end + + class Array #:nodoc: + alias_method :blank?, :empty? + end + + class Hash #:nodoc: + alias_method :blank?, :empty? + end + + class String #:nodoc: + def blank? + empty? || strip.empty? + end + end + + class Numeric #:nodoc: + def blank? + false + end + end +end
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