I need a small help on ROR.
I have a return from a query and when I do puts result.to_a, I have got:
{"clazz_id"=>1, "staff_id"=>1}
{"clazz_id"=>2, "staff_id"=>1}
{"clazz_id"=>3, "staff_id"=>1}
I have like to convert it to an array of [1, 2, 3] from clazz_id and how can I achieve that?
if use Active record query can make this direct pluck
results.pluck(:clazz_id)
if you need deal with array of hash can use map or map! like
p results.to_a.map{|e| e["clazz_id"] }
or can use collect
p results.to_a.collect{|e| e["clazz_id"] }