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Diffstat (limited to 'guides/source/association_basics.md')
| -rw-r--r-- | guides/source/association_basics.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 5794bfa666..bead931529 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -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 @@ -960,7 +960,7 @@ class Author < ApplicationRecord end ``` -NOTE: You only need to specify the :counter_cache option on the `belongs_to` +NOTE: You only need to specify the `:counter_cache` option on the `belongs_to` side of the association. Counter cache columns are added to the containing model's list of read-only attributes through `attr_readonly`. @@ -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. ### `has_many` Association Reference @@ -1559,7 +1559,7 @@ The `collection.size` method returns the number of objects in the collection. The `collection.find` method finds objects within the collection. It uses the same syntax and options as `ActiveRecord::Base.find`. ```ruby -@available_books = @author.books.find(1) +@available_book = @author.books.find(1) ``` ##### `collection.where(...)` @@ -1831,7 +1831,7 @@ The `limit` method lets you restrict the total number of objects that will be fe class Author < ApplicationRecord has_many :recent_books, -> { order('published_at desc').limit(100) }, - class_name: "Book", + class_name: "Book" end ``` |