#!/usr/bin/env ruby
# == Synopsis
# The reverse_scaffold script executes a Rails scaffold based on an existing table.
#
#
# == Usage
# ruby script/reverse_scaffold table_name model_name
#
#
# == Examples
# ruby script/reverse_scaffold users user
#
#
# == Options
# -h, --help Displays help message
# -r, --rspec Generates rspec_scaffold
# -V, --verbose Outputs the command but doesn't execute it
# -v, --version
#
#
# == Author
# Anthony Heukmes
# http://2dconcept.com
# http://github.com/ahe
#
#
# == Copyright
# Copyright (c) 2009 Anthony Heukmes. Licensed under the MIT License
require 'rdoc/usage'
require 'optparse'
require File.dirname(__FILE__) + '/../config/environment'
def display_help
RDoc::usage
exit
end
def display_version
puts "Rails ActiveRecord Reverse Scaffold version #{SCRIPT_VERSION}"
exit
end
def configure_table_name(class_name, table_name)
model = <<-CODE
class #{class_name} < ActiveRecord::Base
set_table_name '#{table_name}'
end
CODE
File.open(File.dirname(__FILE__) + "/../app/models/#{class_name.underscore}.rb", 'w+') {|f| f.write(model) }
end
SCRIPT_VERSION = 1.0
command_name = 'scaffold'
options = {}
OptionParser.new do |opts|
opts.on('-h', '--help') { display_help }
opts.on('-r', '--rspec') { command_name = 'rspec_scaffold' }
opts.on('-V', '--verbose') { options[:verbose] = true }
opts.on('-v', '--version') { display_version }
end.parse!
display_help unless ARGV[0] && ARGV[1]
table_name = ARGV[0]
class_name = ARGV[1].camelize
eval "class ::#{class_name} < ActiveRecord::Base; set_table_name '#{table_name}' end"
klass = eval "::#{class_name}"
reverse_scaffold = "ruby #{File.dirname(__FILE__)}/generate #{command_name} #{class_name.underscore} --skip-migration "
klass.columns.each do |col|
reverse_scaffold << col.name + ":" + col.type.to_s + " "
end
if options[:verbose]
puts reverse_scaffold
else
system reverse_scaffold
configure_table_name(class_name, table_name) if ARGV[0].downcase != ARGV[1].underscore.pluralize
end
