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Diffstat (limited to 'guides/source/migrations.md')
| -rw-r--r-- | guides/source/migrations.md | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/guides/source/migrations.md b/guides/source/migrations.md index 550f8fdc3c..eb0cfd9451 100644 --- a/guides/source/migrations.md +++ b/guides/source/migrations.md @@ -366,26 +366,24 @@ create_join_table :products, :categories which creates a `categories_products` table with two columns called `category_id` and `product_id`. These columns have the option `:null` set to -`false` by default. - -You can pass the option `:table_name` with you want to customize the table -name. For example, +`false` by default. This can be overridden by specifying the `:column_options` +option. ```ruby -create_join_table :products, :categories, table_name: :categorization +create_join_table :products, :categories, column_options: {null: true} ``` -will create a `categorization` table. +will create the `product_id` and `category_id` with the `:null` option as +`true`. -By default, `create_join_table` will create two columns with no options, but -you can specify these options using the `:column_options` option. For example, +You can pass the option `:table_name` with you want to customize the table +name. For example, ```ruby -create_join_table :products, :categories, column_options: {null: true} +create_join_table :products, :categories, table_name: :categorization ``` -will create the `product_id` and `category_id` with the `:null` option as -`true`. +will create a `categorization` table. `create_join_table` also accepts a block, which you can use to add indices (which are not created by default) or additional columns: @@ -448,7 +446,7 @@ definitions: * `create_table` * `create_join_table` * `drop_table` (must supply a block) -* `drop_join_table` (must supply a block) +* `drop_join_table` (must supply a block) * `remove_timestamps` * `rename_column` * `rename_index` @@ -877,7 +875,7 @@ end # app/models/product.rb class Product < ActiveRecord::Base - validates :flag, inclusion: { in: [true, false] } + validates :flag, inclusion: { in: [true, false] } validates :fuzz, presence: true end ``` |