如何让数组按顺序添加数据库中的对象?

I am appending the username column and the image column to two different arrays from parse. I am then putting them into the collection view. I am anticipating that the username in the nameArray corresponds to the imageArray, but majority of the time they are in the wrong order. How do I get them to append into the array in the right order? i.e. User 1 has picture 1, user 2 has picture 2. username array = [User 1, User 2]. image array = [picture 1, picture 2]. I am appending the username column and the imag