I've implemented the following scope in a rails 3 application:
scope :popular, lambda { |l = 5| order('views desc').limit(l) }
However, it seems that when you attempt to count its records directly
it doesn't apply the scope filters.
For example:
Post.popular.size #=> 20
Checking the log, it executes the following query:
SQL (0.4ms) SELECT COUNT(*) AS count_id FROM `posts` LIMIT 5
Now if I execute
Post.popular.all.size #=> 5
And the correct query is executed:
Post Load (1.5ms) SELECT `posts`.* FROM `posts` ORDER BY views
desc LIMIT 5
Anyone else experienced this kind of behavior? If so, any idea if this
is the expected behavior or am I facing a bug?
Best regards,
DBA
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