How to update multiple models at once by an array that include post_id

Question

I have a Model Post and there is an array that includes post_id like this:

hashes = [[post_id: 1, info: 'foo'],
          [post_id: 3, info: 'bar'],
          [post_id: 4, info: 'foobar']]

I can update models by this code.

hashes.each do |h|
  post = Post.find(h[:post_id])
  next if post.nil?
  post.update(info: h[:info])
end

But the array size is normally over 3000, if possible I want to avoid call update so many times. How can I implement this function without using each loop?

Answer 1

It sounds like you are looking for Update records - from the documentation Updating multiple records; different col with different data

You can do like this Example:

people = { 1 => { "first_name" => "David" }, 2 => { "first_name" => "Jeremy" } } Person.update(people.keys, people.values)