Module: ActiveRecord::Delegation

### Home Classes Methods

### In Files

- lib/active_record/relation/delegation.rb

### Methods

- ::delegate_to_scoped_klass
- #method_missing
- #respond_to?

### Files

- README.rdoc

### Class/Module Index

Quicksearch

- ActiveRecord
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- Mysql
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No matching classes.

# ActiveRecord::Delegation

### Public Class Methods

delegate_to_scoped_klass(method) click to toggle source

    # File lib/active_record/relation/delegation.rb, line 10
    def self.delegate_to_scoped_klass(method)
      if method.to_s =~ /\A[a-zA-Z_]\w*[!?]?\z/
        module_eval           def #{method}(*args, &block)            scoping { @klass.#{method}(*args, &block) }          end, __FILE__, __LINE__ + 1
      else
        module_eval           def #{method}(*args, &block)            scoping { @klass.send(#{method.inspect}, *args, &block) }          end, __FILE__, __LINE__ + 1
      end
    end

### Public Instance Methods

respond_to?(method, include_private = false) click to toggle source

    # File lib/active_record/relation/delegation.rb, line 26
    def respond_to?(method, include_private = false)
      super || Array.method_defined?(method) ||
        @klass.respond_to?(method, include_private) ||
        arel.respond_to?(method, include_private)
    end

### Protected Instance Methods

method_missing(method, *args, &block) click to toggle source

    # File lib/active_record/relation/delegation.rb, line 34
    def method_missing(method, *args, &block)
      if @klass.respond_to?(method)
        ::ActiveRecord::Delegation.delegate_to_scoped_klass(method)
        scoping { @klass.send(method, *args, &block) }
      elsif Array.method_defined?(method)
        ::ActiveRecord::Delegation.delegate method, :to => :to_a
        to_a.send(method, *args, &block)
      elsif arel.respond_to?(method)
        ::ActiveRecord::Delegation.delegate method, :to => :arel
        arel.send(method, *args, &block)
      else
        super
      end
    end

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