Question

I want to scope all the records where cancelled_at IS NULL or empty/blank.

I’ve found lots of posts asking for IS NOT NULL/empty/blank…but I need the opposite.

I’m sure it’s painfully simple, but I’m stumped.

Here’s what I’ve currently got:

scope :active, where("cancelled_at IS NULL")

Answer 1

Have you tried that?

 Patient.where("created_at IS NULL or CAST(created_at as text) = ''")
 # SELECT "patients".* FROM "patients" WHERE (created_at IS NULL or CAST(created_at as text) = '')