test123.rb:3: uninitialized constant Profile (NameError) This is the error message I am getting. I have written a class Profile which works just fine when I test it in Profile.rb. Whenever I go to link that class in a new file, though, I get the above error. test123's contents: load "Profile.rb" t = Profile.new puts t.username The latter two lines run perfectly well when after the Profile class definition in Profile.rb Any advice?
on 2006-04-22 21:50
on 2006-04-23 01:40
Wes wrote: > puts t.username > > The latter two lines run perfectly well when after the Profile class > definition in Profile.rb > > Any advice? > > Hi Wes, It might be easier to help you if you let us see the entire contents of both files. Also, you might try testing it out in irb to see if that sheds any more light on the issue. -Justin
on 2006-04-23 10:12
Here ya go Profile.rb class Profile attr_reader :username, :height, :weight, :age, :activity_level, :gender @password #these field need never be read @meta_calc_strategy # The means of calculating metabolic rate @@male_gender = "Male" @@female_gender = "Female" @@max_activity_level = 5 #I have decided to implement a max_activity_level as I've noticed each #scale for metabolic rate has its own definition of how active a person can be. #When making a Strategy for calculating metabolic rate, dividing the #activity_level / max_activity_level will give you a percentage that can be #used to place a person within any specific class. def initialize puts 1 end def username= (username) @username = username end def password= (password) @password = password end def weight= (weight) @weight = weight end def height= (height) @height = height end def age= (age) @age = age end def activity_level= (a_l) @activity_level = a_l end def gender= (gender) @gender = gender end def meta_calc_strategy= (strategy) @meta_calc_strategy = strategy end def get_target_calories @meta_calc_strategy.get_target_calories end end test123.rb load "Profile.rb" t = Profile.new puts t.username
on 2006-04-23 10:44
Wes wrote: > Here ya go > > <snip> I made two files, copied what you posted, and it worked fine. Since the load command is working for you, the file is being loaded. Are you perhaps loading a different copy of the file? That's all I can think of. You might try putting some command like > puts "I loaded!" somewhere in the Profile.rb file (maybe at the end) to make sure it's actually being loaded. Another thing to try is running ruby with the -d option to check for less obvious problems. On an unrelated topic, you can replace all the methods like > def username= (username) > @username = username > end with > attr_accessor :username Just like you used attr_reader. Hope that helps somewhat. -Justin