Module: Party::Proxy::InstanceMethods

Defined in:
lib/proxy_party.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#proxy_factories ⇒ Object

Returns the value of attribute proxy_factories.



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# File 'lib/proxy_party.rb', line 26

def proxy_factories
  @proxy_factories
end

Instance Method Details

#add_proxy_factories(hash) ⇒ Object Also known as: add_proxy_factory 



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# File 'lib/proxy_party.rb', line 32

def add_proxy_factories hash
  hash.each_pair do |name, factory| 
    factory = if factory.kind_of?(Class) 
      Party::Proxy::Factory.new(factory) 
    else
      case factory
      when Array
        fac = factory.first
        meth = factory.last if factory.size == 2
        raise ArgumentError, "Factory must be a Class, was #{fac}" if !fac.kind_of?(Class) 
        raise ArgumentError, "Factory method be a label, was #{meth}" if meth && !meth.kind_of_label?
        Party::Proxy::Factory.new(fac, meth)
      else
        raise ArgumentError, "Factory must be a Class or have a #create method: #{factory}" if !factory.respond_to?(:create)
        factory
      end
    end
    self.proxy_factories ||= {}
    self.proxy_factories.merge!(name.to_sym => factory) if name.kind_of_label? 
  end
end

#instance_proxy_accessor_for(obj, method = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/proxy_party.rb', line 204

def instance_proxy_accessor_for obj, method = nil
  method ||= obj[1] if obj.kind_of?(Hash)
  raise ArgumentError, "Takes only a single accessor to proxy" if method.kind_of? Array
  instance_proxy_accessors_for obj, [method].flatten
end

#instance_proxy_accessors_for(obj, *methods) ⇒ Object

Add proxy methods only to the instance object



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# File 'lib/proxy_party.rb', line 164

def instance_proxy_accessors_for obj, *methods
  instance_proxy_for obj, methods
  check = last_arg_value({:check => false}, methods)

  rename_methods = last_arg_value({:rename => {}}, methods)
  methods.delete(:rename) if rename_methods
  
  methods.to_symbols.flat_uniq.each do |meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method #{meth} to proxy for #{obj}" if !self.send(obj).respond_to?(:"#{meth}=")
    end
    instance_eval %{
    class << self
      define_method :#{meth}= do |arg|
        self.#{obj} ||= create_in_factory(:#{obj})
        self.#{obj} ||= self.class.send(:create_in_factory, :#{obj})
        #{obj}.send(:#{meth}=, arg) if #{obj}
      end
    end
    }
  end 

  rename_methods.each_pair do |meth, new_meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method to proxy for #{obj}" if !self.send(obj).respond_to?(meth)
    end
    instance_eval %{
      class << self
        define_method :#{new_meth}= do |arg|
          self.#{obj} ||= create_in_factory(:#{obj})
          self.#{obj} ||= self.class.send(:create_in_factory, :#{obj})
          #{obj}.send(:#{meth}=, arg) if #{obj}
        end
      end
    }
  end
end

#instance_proxy_for(obj, *methods) ⇒ Object

Add proxy methods only to the instance object



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# File 'lib/proxy_party.rb', line 129

def instance_proxy_for obj, *methods
  check = last_arg_value({:check => false}, methods) 
  rename_methods = last_arg_value({:rename => {}}, methods)
  methods.delete(:rename) if rename_methods
  
  methods.to_symbols.flat_uniq.each do |meth|       
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method to proxy for #{obj}" if !self.send(obj).respond_to?(meth)
    end
    instance_eval %{
    class << self
      define_method :#{meth} do
        #{obj}.send(:#{meth}) if #{obj}
      end
    end
    }
  end 
  
  rename_methods.each_pair do |meth, new_meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method to proxy for #{obj}" if !self.send(obj).respond_to?(meth)
    end
    instance_eval %{
    class << self
      define_method :#{new_meth} do
        #{obj}.send(:#{meth}) if #{obj}
      end
    end
    }
  end        
end

#named_proxies(hash) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/proxy_party.rb', line 210

def named_proxies hash
  raise ArgumentError, "Argument must be a hash" if !hash.kind_of? Hash
  self.class.send :include, Party::Proxy
  hash.each_pair do |proxy, methods|
    instance_proxy_accessors_for proxy, methods
  end
end

#proxy_accessor_for(obj, method = nil) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/proxy_party.rb', line 107

def proxy_accessor_for obj, method = nil
  method ||= obj[1] if obj.kind_of?(Hash)
  raise ArgumentError, "Takes only a single accessor to proxy" if method.kind_of? Array
  proxy_accessor_for obj, [method].flatten
end

#proxy_accessors_for(obj, *methods) ⇒ Object

Add instance proxy methods



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# File 'lib/proxy_party.rb', line 87

def proxy_accessors_for obj, *methods
  proxy_for obj, methods
  check = last_arg_value({:check => false}, methods)
  rename_methods = last_arg_value({:rename => {}}, methods)
  methods.delete(:rename) if rename_methods

  methods.to_symbols.flat_uniq.each do |meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method #{meth} to proxy for #{obj}" if !self.send(obj).respond_to?(:"#{meth}=")
    end
    class_eval %{
      define_method :#{meth}= do |arg|
        self.#{obj} ||= create_in_factory(:#{obj})
        self.#{obj} ||= self.class.send(:create_in_factory, :#{obj})
        #{obj}.send(:#{meth}=, arg) if #{obj}
      end
    }
  end

  def proxy_accessor_for obj, method = nil
    method ||= obj[1] if obj.kind_of?(Hash)
    raise ArgumentError, "Takes only a single accessor to proxy" if method.kind_of? Array
    proxy_accessor_for obj, [method].flatten
  end

  rename_methods.each_pair do |meth, new_meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method #{meth} to proxy for #{obj}" if !self.send(obj).respond_to?(:"#{meth}=")
    end
    class_eval %{
      define_method :#{new_meth}= do |arg|
        self.#{obj} ||= create_in_factory(:#{obj})
        self.#{obj} ||= self.class.send(:create_in_factory, :#{obj})
        #{obj}.send(:#{meth}=, arg) if #{obj}
      end
    }
  end
end

#proxy_factory ⇒ Object 



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# File 'lib/proxy_party.rb', line 28

def proxy_factory
  proxy_factories
end

#proxy_for(obj, *methods) ⇒ Object

Add instance proxy methods



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# File 'lib/proxy_party.rb', line 56

def proxy_for obj, *methods
  check   = last_arg_value({:check => false}, methods)
  rename_methods = last_arg_value({:rename => {}}, methods)
  methods.delete(:rename) if rename_methods

  methods.to_symbols.flat_uniq.each do |meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method to proxy for #{obj}" if !self.send(obj).respond_to?(meth)
    end
    class_eval %{
      define_method :#{meth} do
        #{obj}.send(:#{meth}) if #{obj}
      end
    }
  end
  
  rename_methods.each_pair do |meth, new_meth|
    if check
      raise ArgumentError, "No such object to proxy #{obj}" if !self.respond_to?(obj)
      raise ArgumentError, "No such method to proxy for #{obj}" if !self.send(obj).respond_to?(meth)
    end
    class_eval %{
      define_method :#{new_meth} do
        #{obj}.send(:#{meth}) if #{obj}
      end
    }
  end
end