Convert ugly CamelCase model schemas to lcase and underscores. Input: User(id: integer, FirstName: string, LastName: string, StreetAddress: string, City: string, State: string, Zip: string, PhoneNumber: string, EmailAddress: string, created_at: datetime, updated_at: datetime) Output: rails g scaffold User id:integer first_name:string last_name:s…

gistfile1.rb

# encoding: utf-8
puts 'What should I name the model?'
model_name = gets

puts 'Enter model schema:'
sch = gets.match(/\((.*)\)/)[1]

puts 'Analyzing schema string...'

scaffold_string = 'rails g scaffold {replace_me}'

split_schema = sch.split(', ')

split_schema.each do |s|
  scaffold_string.concat(' ').concat(s.gsub(': ', ':'))
end

# Convert CamelCase to lowercase+underscores
capitals = scaffold_string.scan(/\p{Lu}/)

capitals.each do |c|
  scaffold_string.gsub!(c, '_' + c.downcase)
end

# Final gsub to get rid of underscores after spaces
scaffold_string.gsub!(' _', ' ').gsub!('{replace_me}', model_name)

puts 'How does this look?'
puts scaffold_string.gsub("\n", '')