@@ -599,7 +599,7 @@ class CreateBooks < ActiveRecord::Migration[5.0]
t.string:book_number
t.integer:author_id
end
add_index:books,:author_id
add_foreign_key:books,:authors
end
...
...
@@ -1417,7 +1417,7 @@ If either of these saves fails due to validation errors, then the assignment sta
If the parent object (the one declaring the `has_one` association) is unsaved (that is, `new_record?` returns `true`) then the child objects are not saved. They will automatically when the parent object is saved.
If you want to assign an object to a `has_one` association without saving the object, use the `association.build` method.
If you want to assign an object to a `has_one` association without saving the object, use the `build_association` method.