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#1817 ✓committed

ActiveRecord::Base exists? expects argument

Reported by Tobi | January 29th, 2009 @ 10:50 AM | in 2.x

Tiny but annoying bug if you want to have beautiful code:

The Bug By now ActiveRecord::Base method "exists?" expects an argument.

Example: to check if at least one entry exists in table 'persons':


But this doesn't work, as an argument is expected. Even more common scenario happens with named scope:


The Workaround As a workaround passing an empty hash works, but looks ugly:


The Fix So my proposal to get back to beautiful code: Add empty hash as default parameter to 'extists?' method:

def exists?(id_or_conditions = {} )

Cheers Tobi

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