8f93a872e399bc1353cc8d4e791d5401

This works. Now, is there a simpler way than my solution?

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require 'erb'

# GOAL: render the template with the following vars
vars = { :first => 'Mislav', 'last' => 'Marohnic' }
template = 'Name: <%= first %> <%= last %>'

# create anonymous module which binding we will use
m = Module.new do
  # I want the singleton class, thank you
  class << self
    public :binding
    
    def meta
      class << self; self; end
    end
  end

  class << meta
    public :define_method
  end

  # define singleton method for each var
  vars.each do |name, value|
    meta.define_method(name) { value }
  end
end

puts ERB.new(template).result(m.binding)
#=> "Name: Mislav Marohnic"

Refactorings

No refactoring yet !

A05834e9b5954947eb0ba3b570c47d5e

lifo

April 12, 2008, April 12, 2008 15:38, permalink

2 ratings. Login to rate!

Dont make me do these things again :-(

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require 'erb'
require 'ostruct'

vars = OpenStruct.new :first => 'Mislav', 'last' => 'Marohnic'
template = 'Name: <%= first %> <%= last %>'
puts ERB.new(template).result(vars.send(:binding))
39b3031f890ad7ce40661614af8b52a6

Nathan Weizenbaum

April 12, 2008, April 12, 2008 17:08, permalink

2 ratings. Login to rate! 
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require 'rubygems'
require 'erubis'

vars = { :first => 'Mislav', 'last' => 'Marohnic' }
template = 'Name: <%= first %> <%= last %>'
Erubis::Eruby.new(template).result(vars)
5b9fe87ec1faa67a4599782930f45ec9

Sam Stephenson

April 12, 2008, April 12, 2008 17:34, permalink

2 ratings. Login to rate! 
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require "erb"

class Hash
  def to_binding(object = Object.new)
    object.instance_eval("def binding_for(#{keys.join(",")}) binding end")
    object.binding_for(*values)
  end
end

class Document
  def initialize(template)
    @template = ERB.new(template)
  end
  
  def interpolate(replacements = {})
    @template.result(replacements.to_binding)
  end
end

puts Document.new("Name: <%= first %> <%= last %>").interpolate(:first => "Mislav", "last" => "Marohnic")
# Name: Mislav Marohnic

Your refactoring





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