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Fixes issue #22960
When creating join tables with the command
rails g migration CreateJoinTableShowroomUser showroom:references user:references
The migration will use references to create the joins and output:
class CreateJoinTableShowroomUser < ActiveRecord::Migration
def change
create_join_table :showrooms, :users do |t|
t.references :showroom, index: true, foreign_key: true
t.references :user, index: true, foreign_key: true
end
end
end
This allows for proper refrences with indexes and foreign keys to be easily used when
adding join tables. Without `:refrences` the normal output is generated:
class CreateJoinTableShowroomUser < ActiveRecord::Migration[5.0]
def change
create_join_table :showrooms, :users do |t|
# t.index [:showroom_id, :user_id]
# t.index [:user_id, :showroom_id]
end
end
end
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Changes `rails g model Post user:references` from
def change
create_table :posts do |t|
t.references :user, index: true
end
add_foreign_key :posts, :users
end
to
def change
create_table :posts do |t|
t.references :user, index: true, foreign_key: true
end
end
Changes `rails g migration add_user_to_posts user:references` from
def change
add_reference :posts, :users, index: true
add_foreign_key :posts, :users
end
to
def change
add_reference :posts, :users, index: true, foreign_key: true
end
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If you run a generator such as:
```
rails generate model accounts supplier:references
```
The resulting migration will now add the corresponding foreign key
constraint unless the reference was specified to be polymorphic.
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As per discussion, this changes the model generators to specify
`null: false` for timestamp columns. A warning is now emitted if
`timestamps` is called without a `null` option specified, so we can
safely change the behavior when no option is specified in Rails 5.
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* adds password_digest attribute to the migration
* adds has_secure_password to the model
* adds password and password_confirmation password_fields to _form.html
* omits password entirely from index.html and show.html
* adds password and password_confirmation to the controller
* adds unencrypted password and password_confirmation to the controller test
* adds encrypted password_digest to the fixture
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Sometimes you want to create a table without an associated model and
test, which is also not a join table. With this commit, you can now
do that.
Example:
rails g migration create_posts title:string
or
rails g migration CreatePosts title:string
This commit also moves the template the model generator uses for the
migration to the migration templates folder, as it seems a more
sensible place for it now that it is shared code.
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For instance, running
rails g migration CreateMediaJoinTable artists musics:uniq
will create a migration with
create_join_table :artists, :musics do |t|
# t.index [:artist_id, :music_id]
t.index [:music_id, :artist_id], unique: true
end
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AddXXXToYYY/RemoveXXXFromYYY migrations are produced with references
statements, for instance
rails g migration AddReferencesToProducts user:references
supplier:references{polymorphic}
will generate the migration with:
add_reference :products, :user, index: true
add_reference :products, :supplier, polymorphic: true, index: true
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$ rails generate migration remove_foo_from_bars foo:string
This currently generates:
def up
remove_column :bars, :foo
end
Fix it:
def up
remove_column :bars, :foo
end
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@spastorino request
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Remove blank line from generated migration
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When generating a migration that removes a field with an index, the down
will add both the field and its index.
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particular property should be an index like this 'rails g model person name:string:index profile:string'
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Signed-off-by: José Valim <jose.valim@gmail.com>
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Signed-off-by: José Valim <jose.valim@gmail.com>
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former since it's less obstrusive.
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