Class: Amazon::Util::Binder

Inherits:
Object
  • Object
show all
Defined in:
lib/amazon/util/binder.rb

Overview

Simple class for holding eval information useful for feeding to ERB templates and the like

Instance Method Summary collapse

Constructor Details

#initialize(initial = {}) {|_self| ... } ⇒ Binder

:yields: self

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/amazon/util/binder.rb', line 13

def initialize(initial={},&block) # :yields: self 
  initial.each {|k,v| set(k,v) }
  yield self unless block.nil?
end

Instance Method Details

#bind ⇒ Object 



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# File 'lib/amazon/util/binder.rb', line 26

def bind
  binding
end

#erb_eval(template) ⇒ Object 



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# File 'lib/amazon/util/binder.rb', line 40

def erb_eval( template )
  t = ERB.new template
  return t.result(binding)
end

#merge(hash) ⇒ Object 



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# File 'lib/amazon/util/binder.rb', line 18

def merge(hash)
  hash.each {|k,v| set(k,v) }
end

#old_erb_eval(template) ⇒ Object

Helper method to simplify ERB evaluation



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# File 'lib/amazon/util/binder.rb', line 31

def old_erb_eval( template )
  buffer = ""
  c = ERB::Compiler.new("")
  c.put_cmd = "buffer <<" if c.respond_to? :put_cmd=
  c.insert_cmd = "buffer <<" if c.respond_to? :insert_cmd=
  compiled = c.compile template
  eval compiled
  return buffer
end

#set(k, v) ⇒ Object 



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# File 'lib/amazon/util/binder.rb', line 22

def set(k,v)
  self.instance_variable_set "@#{k.to_s}", "#{v.to_s}"
end