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How to use method_missing method of ClassMethods Package

Best Howitzer_ruby code snippet using ClassMethods.method_missing

attribute_methods.rb

Source:attribute_methods.rb

...7    end8    # Declare and check for suffixed attribute methods.9    module ClassMethods10      # Declare a method available for all attributes with the given suffix.11      # Uses method_missing and respond_to? to rewrite the method12      #   #{attr}#{suffix}(*args, &block)13      # to14      #   attribute#{suffix}(#{attr}, *args, &block)15      #16      # An attribute#{suffix} instance method must exist and accept at least17      # the attr argument.18      #19      # For example:20      #   class Person < ActiveRecord::Base21      #     attribute_method_suffix '_changed?'22      #23      #     private24      #       def attribute_changed?(attr)25      #         ...26      #       end27      #   end28      #29      #   person = Person.find(1)30      #   person.name_changed?    # => false31      #   person.name = 'Hubert'32      #   person.name_changed?    # => true33      def attribute_method_suffix(*suffixes)34        attribute_method_suffixes.concat suffixes35        rebuild_attribute_method_regexp36      end37      # Returns MatchData if method_name is an attribute method.38      def match_attribute_method?(method_name)39        rebuild_attribute_method_regexp unless defined?(@@attribute_method_regexp) && @@attribute_method_regexp40        @@attribute_method_regexp.match(method_name)41      end42      private43        # Suffixes a, ?, c become regexp /(a|\?|c)$/44        def rebuild_attribute_method_regexp45          suffixes = attribute_method_suffixes.map { |s| Regexp.escape(s) }46          @@attribute_method_regexp = /(#{suffixes.join('|')})$/.freeze47        end48        # Default to =, ?, _before_type_cast49        def attribute_method_suffixes50          @@attribute_method_suffixes ||= []51        end52    end53    private54      # Handle *? for method_missing.55      def attribute?(attribute_name)56        query_attribute(attribute_name)57      end58      # Handle *= for method_missing.59      def attribute=(attribute_name, value)60        write_attribute(attribute_name, value)61      end62      # Handle *_before_type_cast for method_missing.63      def attribute_before_type_cast(attribute_name)64        read_attribute_before_type_cast(attribute_name)65      end66  end67end

method_missing

Using AI Code Generation

1  def self.included(base)2    base.extend(ClassMethods)3    def method_missing(name, *args)4      define_method(name) do |*args|5c.hello("Ruby", "Python", "Perl")

method_missing

Using AI Code Generation

1  def self.method_missing(method_name, *args)2    if method_name.to_s =~ /^find_by_(.*)/3        attrs = attr_name.split("_and_")4  def method_missing(method_name, *args)5    if method_name.to_s =~ /^find_by_(.*)/6        attrs = attr_name.split("_and_")7  def self.method_missing(method_name, *args)8  def method_missing(method_name, *args)

method_missing

Using AI Code Generation

1  def method_missing(meth, *args, &block)2    puts "(Block given)" if block_given?3ClassMethods.hello("Ruby", "world") do

method_missing

Using AI Code Generation

1 def self.method_missing(name, *args)2 def self.method_missing(name, *args)3 define_method(name) do |*args|

method_missing

Using AI Code Generation

1  def self.included(base)2    base.extend(ClassMethods)3    def method_missing(name, *args)4      define_method(name) do |*args|5c.hello("Ruby", "Python", "Perl")

method_missing

Using AI Code Generation

1 def self.method_missing(name, *args)2 def self.method_missing(name, *args)3 define_method(name) do |*args|

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