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Update Migration number from 5.0 to current 6.0 [ci skip]

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davidauza-engineer 2020-01-23 15:47:54 -05:00 committed by GitHub
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38
guides/source/active_record_migrations.md
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@ -34,7 +34,7 @@ history to the latest version. Active Record will also update your
Here's an example of a migration:
```ruby
class CreateProducts < ActiveRecord::Migration[5.0]
class CreateProducts < ActiveRecord::Migration[6.0]
def change
create_table :products do |t|
t.string :name
@ -71,7 +71,7 @@ If you wish for a migration to do something that Active Record doesn't know how
to reverse, you can use `reversible`:
```ruby
class ChangeProductsPrice < ActiveRecord::Migration[5.0]
class ChangeProductsPrice < ActiveRecord::Migration[6.0]
def change
reversible do |dir|
change_table :products do |t|
@ -86,7 +86,7 @@ end
Alternatively, you can use `up` and `down` instead of `change`:
```ruby
class ChangeProductsPrice < ActiveRecord::Migration[5.0]
class ChangeProductsPrice < ActiveRecord::Migration[6.0]
def up
change_table :products do |t|
t.change :price, :string
@ -128,7 +128,7 @@ $ bin/rails generate migration AddPartNumberToProducts
This will create an appropriately named empty migration:
```ruby
class AddPartNumberToProducts < ActiveRecord::Migration[5.0]
class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
def change
end
end
@ -150,7 +150,7 @@ $ bin/rails generate migration AddPartNumberToProducts part_number:string
will generate
```ruby
class AddPartNumberToProducts < ActiveRecord::Migration[5.0]
class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :part_number, :string
end
@ -166,7 +166,7 @@ $ bin/rails generate migration AddPartNumberToProducts part_number:string:index
will generate
```ruby
class AddPartNumberToProducts < ActiveRecord::Migration[5.0]
class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :part_number, :string
add_index :products, :part_number
@ -184,7 +184,7 @@ $ bin/rails generate migration RemovePartNumberFromProducts part_number:string
generates
```ruby
class RemovePartNumberFromProducts < ActiveRecord::Migration[5.0]
class RemovePartNumberFromProducts < ActiveRecord::Migration[6.0]
def change
remove_column :products, :part_number, :string
end
@ -200,7 +200,7 @@ $ bin/rails generate migration AddDetailsToProducts part_number:string price:dec
generates
```ruby
class AddDetailsToProducts < ActiveRecord::Migration[5.0]
class AddDetailsToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :part_number, :string
add_column :products, :price, :decimal
@ -219,7 +219,7 @@ $ bin/rails generate migration CreateProducts name:string part_number:string
generates
```ruby
class CreateProducts < ActiveRecord::Migration[5.0]
class CreateProducts < ActiveRecord::Migration[6.0]
def change
create_table :products do |t|
t.string :name
@ -245,7 +245,7 @@ $ bin/rails generate migration AddUserRefToProducts user:references
generates
```ruby
class AddUserRefToProducts < ActiveRecord::Migration[5.0]
class AddUserRefToProducts < ActiveRecord::Migration[6.0]
def change
add_reference :products, :user, foreign_key: true
end
@ -264,7 +264,7 @@ $ bin/rails generate migration CreateJoinTableCustomerProduct customer product
will produce the following migration:
```ruby
class CreateJoinTableCustomerProduct < ActiveRecord::Migration[5.0]
class CreateJoinTableCustomerProduct < ActiveRecord::Migration[6.0]
def change
create_join_table :customers, :products do |t|
# t.index [:customer_id, :product_id]
@ -288,7 +288,7 @@ $ bin/rails generate model Product name:string description:text
will create a migration that looks like this
```ruby
class CreateProducts < ActiveRecord::Migration[5.0]
class CreateProducts < ActiveRecord::Migration[6.0]
def change
create_table :products do |t|
t.string :name
@ -316,7 +316,7 @@ $ bin/rails generate migration AddDetailsToProducts 'price:decimal{5,2}' supplie
will produce a migration that looks like this
```ruby
class AddDetailsToProducts < ActiveRecord::Migration[5.0]
class AddDetailsToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :price, :decimal, precision: 5, scale: 2
add_reference :products, :supplier, polymorphic: true
@ -578,7 +578,7 @@ to reverse. You can use `reversible` to specify what to do when running a
migration and what else to do when reverting it. For example:
```ruby
class ExampleMigration < ActiveRecord::Migration[5.0]
class ExampleMigration < ActiveRecord::Migration[6.0]
def change
create_table :distributors do |t|
t.string :zipcode
@ -631,7 +631,7 @@ is wise to perform the transformations in precisely the reverse order they were
made in the `up` method. The example in the `reversible` section is equivalent to:
```ruby
class ExampleMigration < ActiveRecord::Migration[5.0]
class ExampleMigration < ActiveRecord::Migration[6.0]
def up
create_table :distributors do |t|
t.string :zipcode
@ -674,7 +674,7 @@ You can use Active Record's ability to rollback migrations using the `revert` me
```ruby
require_relative '20121212123456_example_migration'
class FixupExampleMigration < ActiveRecord::Migration[5.0]
class FixupExampleMigration < ActiveRecord::Migration[6.0]
def change
revert ExampleMigration
@ -692,7 +692,7 @@ is later decided it would be best to use Active Record validations,
in place of the `CHECK` constraint, to verify the zipcode.
```ruby
class DontUseConstraintForZipcodeValidationMigration < ActiveRecord::Migration[5.0]
class DontUseConstraintForZipcodeValidationMigration < ActiveRecord::Migration[6.0]
def change
revert do
# copy-pasted code from ExampleMigration
@ -856,7 +856,7 @@ Several methods are provided in migrations that allow you to control all this:
For example, this migration:
```ruby
class CreateProducts < ActiveRecord::Migration[5.0]
class CreateProducts < ActiveRecord::Migration[6.0]
def change
suppress_messages do
create_table :products do |t|
@ -1021,7 +1021,7 @@ to add or modify data. This is useful in an existing database that can't be dest
and recreated, such as a production database.
```ruby
class AddInitialProducts < ActiveRecord::Migration[5.0]
class AddInitialProducts < ActiveRecord::Migration[6.0]
def up
5.times do |i|
Product.create(name: "Product ##{i}", description: "A product.")