Contents

require 'iowa/Constants'

class Object
  
  def takeValueForKey(value, key)
    __send__("#{key}=", value)
  end
  
  def valueForKey(key)
    __send__(key)
  end
  
  def takeValueForKeyPath(value, keyPath)
    keys = keyPath.split(Iowa::C_dot)
    lastKey = keys.pop
    target = self
    for key in keys
      target = target.valueForKey(key)
    end
    target.takeValueForKey(value, lastKey)
  end
  
  def valueForKeyPath(keyPath)
    keys = keyPath.split(Iowa::C_dot)
    result = self
    keys.each_index do |i|
      if keys[i] =~ /^[&](.*)/
        return result.__send__($1) do |val|
          val.valueForKeyPath(keys[i+1..-1].join(Iowa::C_dot))
        end
      end 
      result = result.valueForKey keys[i]
    end
    result
  end

  def valueForKeyPathWithArgs(keyPath,*args)
    keys = keyPath.split(Iowa::C_dot)
    final_method = keys.pop
    result = self
    keys.each_index do |i|
      if keys[i] =~ /^[&](.*)/
        return result.__send__($1) do |val|
          val.valueForKeyPath(keys[i+1..-1].join(Iowa::C_dot))
        end
      end 
      result = result.valueForKey keys[i]
    end
    args.length == 0 ? result.__send__(final_method) : result.__send__(final_method,*args)
  end

  def existsKeyPath?(keyPath)
    keys = keyPath.split(Iowa::C_dot)
    lastKey = keys.pop
    target = self
    keys.each_index do |i|
      if keys[i] =~ /^[&](.*)/
        return target.__send__($1) do |val|
          val.existsKeyPath?(keys[i+1..-1].join(Iowa::C_dot))
        end
      end
      target = target.valueForKey keys[i]
    end
    target.respond_to?(lastKey)
    rescue Exception => e
      false
  end
end

class Hash

  def takeValueForKey(value, key)
    self[key] = value
  end
  
  def valueForKey(key)
    self[key]
  end
end

class Array

  def takeValueForKey(value, key)
    self[key.to_i] = value
  end
  
  def valueForKey(key)
    self[key.to_i]
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
IOWA-1.0.3	src/iowa/KeyValueCoding.rb
IOWA-1.0.2	src/iowa/KeyValueCoding.rb
IOWA-1.0.0	src/iowa/KeyValueCoding.rb