ruby on rails - Accessing Serialized Hash via ActiveRecord -

i have serialized hash in mymodel, this:

class mymodel < activerecord::base     serialize :times, hash end

i able write , read serialzed hash, this:

# write my_model.times[:weekday] = "foo"  # read bar = my_model.times[:weekend]

but running syntax errors around times[:weekday], while trying this:

mymodel.where("foo = ? , times[:weekday] not null", baz)

what missing here?

what about:

mymodel.where("foo = ?", baz).select { |m| m.weekday.present? }

Brazell