Record cannot be saved

Ruby
1

Hi, all!

Maybe a noob question, sorry, but I’m really stuck with this.
I have 2 models with has_many and belongs_to associations.
class Transaction < ActiveRecord::Base
has_many :bonuses, :class_name => ‘TransactionBonus’
end
class TransactionBonus < ActiveRecord::Base
belongs_to :transaction
end

The problem is that I cannot save TransactionBonus record to the
database - it’s simply doesn’t do anything! Here is my irb console
output with test records:

transaction=Transaction.find(1)
=> #<Transaction id: 1, card_account_id: 1, loyalty_id: 0,
discount_level: 1, sale_session_id: 5, sum: 123.0, created_at:
“2008-09-01 13:48:10”, updated_at: “2008-09-01 13:48:10”>

transaction.bonuses
=> []

bonus=transaction.bonuses.create(:transaction_id => 1,:taken_bonus => 123,:collected_bonus => 34,:final_sum => 99)
=> #<TransactionBonus id: nil, transaction_id: 1, taken_bonus: 123.0,
collected_bonus: 34.0, final_sum: 99.0, created_at: nil, updated_at:
nil>

transaction.bonuses
=> [#<TransactionBonus id: nil, transaction_id: 1, taken_bonus: 123.0,
collected_bonus: 34.0, final_sum: 99.0, created_at: nil, updated_at:
nil>]

bonus.save
=> #<Transaction id: 1, card_account_id: 1, loyalty_id: 0,
discount_level: 1, sale_session_id: 5, sum: 123.0, created_at:
“2008-09-01 13:48:10”, updated_at: “2008-09-01 13:48:10”>

bonus
=> #<TransactionBonus id: nil, transaction_id: 1, taken_bonus: 123.0,
collected_bonus: 34.0, final_sum: 99.0, created_at: nil, updated_at:
nil>

Please, note id: nil for the bonus var, it means that the record is
not saved to the database.
Can you suggest why?

2

Some more information:

  1. I have another models in my application, and all of them are saved
    just fine
    TransactionBonus is the only exception
  2. Table structure matches exactly the model records:
    CREATE TABLE IF NOT EXISTS transaction_bonuses (
    id int(11) NOT NULL auto_increment,
    transaction_id int(11) NOT NULL,
    taken_bonus float default NULL,
    collected_bonus float default NULL,
    final_sum float default NULL,
    created_at datetime default NULL,
    updated_at datetime default NULL,
    PRIMARY KEY (id)
    ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;

This is really mysterious for me…