Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/lay.rb

Overview

Summary:

For creating nested object hierarchies.

Usage:

Person.lay(["Aye"], :name => "Bob", :_salary => 10)
The previous line does the following:
  - instantiates Person
  - passes "Aye" to its constructor
  - sets "name" attr to "Bob"
  - sets "salary" member variable to 10
  - returns the new instance

Instance Method Summary collapse

Instance Method Details

#lay(args = [], attrs = {}) ⇒ Object 



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# File 'lib/lay.rb', line 15

def lay(args = [], attrs = {})
  # If only first arg passed, it's the attrs
  args, attrs = nil, args if attrs == {}

  # Use args list as constructor args if passed
  o = self.new *args if args
  o = self.new unless args

  # Set attrs as member variables
  attrs.each do |k,v|
    # If it begins with :_, use instance_eval
    if k.to_s =~ /^_/
      o.instance_variable_set(k.to_s.sub("_", "@"), v)
    # Else, set parameter
    else
      o.send("#{k}=", v)
    end
  end
  o
end