Hello!
At first I posted this in rubyonrails-talk, but no one there was able to tell me if this is a bug or not (I got only suggestion for workaround). As this looks like 3.1 regression that breaks existing 3.0.10 code I decided to post this here in addition.
I’ve upgraded to Rails 3.1 (from 3.0.10), ran my test suite and found this issue:
class Trade < ActiveRecord::Base has_many :transaction_trades …
def Trade.do_something stale_trades = Trade.count(‘transaction_trades.id’, :include => :transaction_trades, :group => ‘trades.id’) :having => “count_transaction_trades_id = 0”) end end
Earlier this used to work perfectly, now I get this:
Mysql2::Error: Unknown column ‘transaction_trades.id’ in ‘field list’:
SELECT COUNT(transaction_trades.id) AS count_transaction_trades_id,
trades.id AS trades_id FROM trades GROUP BY trades.id
What puzzles me is that no LEFT OUTER JOIN on transaction_trades is present in generated SQL - that’s why things broke. And it was there in 3.0.10, so table got joined and this code was perfectly working.
Any hints what’s wrong here? Why is :include => :transaction_trades seems to be ignored?
