Get random records from a has_many field in rails 3?

You can use following syntax: @hotelTheme.hotels. Order("RANDOM()"). Limit(6) #for MySQL RAND() RANDOM() is a SQL built-in function and it's works slow on big tables.

Also take a look at randumb gem.

Not sure your answer makes this quite clear. – Russell Nov 30 '11 at 14:58.

If you don't mind the overhead of returning all hotels when you only want six you could do @hotelTheme.hotels. Shuffle0..5 But if your hotel_theme has loads of hotels this is probably quite a bad idea.

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