How to iterate through an instance

rubyonrails-talk
1

Iterate over some_model_instance.attributes ?

2

Yeah! I guess that will then be something like...

  some_model_instance.attributes.each { ... }

Going to try that...

Thanks, Fred!

(do you ever stop working...? :wink:

3

Or Student.column_names.each {|column| puts "#{column} = #{student.send(column)}" }

You might display something like column.humanize.downcase if you need 'date of birth' with the spaces.

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

4

Thanks a bunch, guys!

5

Tom,

You may try the inspect() way:

inspect()

Returns a string like ‘Post id:integer, title:string, body:text‘

# File vendor/rails/activerecord/lib/active_record/base.rb, line 1348 1348: def inspect 1349: if self == Base 1350: super 1351: elsif abstract_class? 1352: "#{super}(abstract)" 1353: elsif table_exists? 1354: attr_list = columns.map { |c| "#{c.name}: #{c.type}" } * ', ' 1355: "#{super}(#{attr_list})" 1356: else 1357: "#{super}(Table doesn't exist)" 1358: end 1359: end

Cheers, Sazima