Rails - call method on a field within a where clause -


this question has answer here:

i want extract exchange rates today(ie. exchange rates have time field of type datetime , want extract day). want this:

exchangerates.where("time.day == ?", pred.time)

is of kind possible?

your database doesn't have datetime object in works rails datetime object. in order query you'll have send understands, between clause. this:

exchangerates.where(time: pred.time.beginning_of_day..pred.time.end_of_day)

i'm assuming pred datetime object


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