How to assign another object to an array of objects in Rails?

Question

Ruby on Rails

There is a model is admissible:
@autos = Auto.all
I want to assign other records to this @autos through a loop in the condition. How to do it?

@autos.each do |auto|
    if(auto.weight < 1000)
       @autos << auto --- так не работает
    end
end

Answer 1

What attributes does @autos(model) have and which would you like to assign? Let's say:
@autos.map { |auto| auto.my_attr = my_example if auto.weight < 1000 }

Answer 2

arr = []
@autos.each do |auto|
    arr << auto if auto.weight < 1000 
end

@autos += arr

Answer 3

maybe you wanted this: @autos = Auto.where("weight < 1000")? It's just that you first select everything in the loop, and then you want to leave only those that satisfy the condition and put it back into the same array. Although this is not usually asked)