Method: Ditz::ModelObject.create_interactively

Defined in:
lib/ditz/model.rb

.create_interactively(opts = {}) ⇒ Object

creates the object, prompting the user when necessary. can take a :with => { hash } parameter for pre-filling model fields.

can also take a :defaults_from => obj parameter for pre-filling model fields from another object with (some of) those fields. kinda like a bizarre interactive copy constructor.



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# File 'lib/ditz/model.rb', line 242

def create_interactively opts={}
  o = self.new
  generator_args = opts[:args] || []
  @fields.each do |name, field_opts|
    val = if opts[:with] && opts[:with][name]
      opts[:with][name]
    elsif(found, v = generate_field_value(o, field_opts, generator_args, :interactive => true)) && found
      v
    else
      q = field_opts[:prompt] || name.to_s.capitalize
      if field_opts[:multiline]
        ## multiline options currently aren't allowed to have a default
        ## value, so just ask.
        ask_multiline_smartly q
      else
        default = if opts[:defaults_from] && opts[:defaults_from].respond_to?(name) && (x = opts[:defaults_from].send(name))
          x
        else
          default = generate_field_default o, field_opts, generator_args
        end
        ask q, :default => default
      end
    end
    o.send "#{name}=", val
  end
  o
end