Saving multiple objects in a single call in rails

Question

I have a method in rails that is doing something like this:

a = Foo.new(\"bar\")
a.save

b = Foo.new(\"baz\")
b.save

...
x = Foo.new(\"123\", :parent_id =&g         


        

Answer 1

insert_all (Rails 6+)

Rails 6 introduced a new method insert_all, which inserts multiple records into the database in a single SQL INSERT statement.

Also, this method does not instantiate any models and does not call Active Record callbacks or validations.

So,

Foo.insert_all([
  { first_name: 'Jamie' },
  { first_name: 'Jeremy' }
])

it is significantly more efficient than

Foo.create([{ :first_name => 'Jamie' }, { :first_name => 'Jeremy' }])

if all you want to do is to insert new records.