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-rw-r--r--guides/source/association_basics.md20
1 files changed, 10 insertions, 10 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md
index 9616647f15..5fddf67171 100644
--- a/guides/source/association_basics.md
+++ b/guides/source/association_basics.md
@@ -109,7 +109,7 @@ class CreateBooks < ActiveRecord::Migration[5.0]
end
create_table :books do |t|
- t.belongs_to :author, index: true
+ t.belongs_to :author
t.datetime :published_at
t.timestamps
end
@@ -140,7 +140,7 @@ class CreateSuppliers < ActiveRecord::Migration[5.0]
end
create_table :accounts do |t|
- t.belongs_to :supplier, index: true
+ t.belongs_to :supplier
t.string :account_number
t.timestamps
end
@@ -184,7 +184,7 @@ class CreateAuthors < ActiveRecord::Migration[5.0]
end
create_table :books do |t|
- t.belongs_to :author, index: true
+ t.belongs_to :author
t.datetime :published_at
t.timestamps
end
@@ -231,8 +231,8 @@ class CreateAppointments < ActiveRecord::Migration[5.0]
end
create_table :appointments do |t|
- t.belongs_to :physician, index: true
- t.belongs_to :patient, index: true
+ t.belongs_to :physician
+ t.belongs_to :patient
t.datetime :appointment_date
t.timestamps
end
@@ -312,13 +312,13 @@ class CreateAccountHistories < ActiveRecord::Migration[5.0]
end
create_table :accounts do |t|
- t.belongs_to :supplier, index: true
+ t.belongs_to :supplier
t.string :account_number
t.timestamps
end
create_table :account_histories do |t|
- t.belongs_to :account, index: true
+ t.belongs_to :account
t.integer :credit_rating
t.timestamps
end
@@ -358,8 +358,8 @@ class CreateAssembliesAndParts < ActiveRecord::Migration[5.0]
end
create_table :assemblies_parts, id: false do |t|
- t.belongs_to :assembly, index: true
- t.belongs_to :part, index: true
+ t.belongs_to :assembly
+ t.belongs_to :part
end
end
end
@@ -517,7 +517,7 @@ In your migrations/schema, you will add a references column to the model itself.
class CreateEmployees < ActiveRecord::Migration[5.0]
def change
create_table :employees do |t|
- t.references :manager, index: true
+ t.references :manager
t.timestamps
end
end