diff options
Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/active_record_migrations.md | 2 | ||||
| -rw-r--r-- | guides/source/active_record_validations.md | 15 | ||||
| -rw-r--r-- | guides/source/association_basics.md | 6 | ||||
| -rw-r--r-- | guides/source/form_helpers.md | 2 |
4 files changed, 5 insertions, 20 deletions
diff --git a/guides/source/active_record_migrations.md b/guides/source/active_record_migrations.md index 67881e6087..5aa5dc4f60 100644 --- a/guides/source/active_record_migrations.md +++ b/guides/source/active_record_migrations.md @@ -454,8 +454,6 @@ number of digits after the decimal point. are using a dynamic value (such as a date), the default will only be calculated the first time (i.e. on the date the migration is applied). * `index` Adds an index for the column. -* `required` Adds `required: true` for `belongs_to` associations and -`null: false` to the column in the migration. Some adapters may support additional options; see the adapter specific API docs for further information. diff --git a/guides/source/active_record_validations.md b/guides/source/active_record_validations.md index dd4d9f55fa..fe42cec158 100644 --- a/guides/source/active_record_validations.md +++ b/guides/source/active_record_validations.md @@ -457,21 +457,6 @@ class Person < ActiveRecord::Base end ``` -This helper counts characters by default, but you can split the value in a -different way using the `:tokenizer` option: - -```ruby -class Essay < ActiveRecord::Base - validates :content, length: { - minimum: 300, - maximum: 400, - tokenizer: lambda { |str| str.split(/\s+/) }, - too_short: "must have at least %{count} words", - too_long: "must have at most %{count} words" - } -end -``` - Note that the default error messages are plural (e.g., "is too short (minimum is %{count} characters)"). For this reason, when `:minimum` is 1 you should provide a personalized message or use `presence: true` instead. When diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 996050d667..c272daac28 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -240,13 +240,15 @@ class CreateAppointments < ActiveRecord::Migration end ``` -The collection of join models can be managed via the API. For example, if you assign +The collection of join models can be managed via the [`has_many` association methods](#has-many-association-reference). +For example, if you assign: ```ruby physician.patients = patients ``` -new join models are created for newly associated objects, and if some are gone their rows are deleted. +Then new join models are automatically created for the newly associated objects. +If some that existed previously are now missing, then their join rows are automatically deleted. WARNING: Automatic deletion of join models is direct, no destroy callbacks are triggered. diff --git a/guides/source/form_helpers.md b/guides/source/form_helpers.md index 0a6e2e5dba..93bb51557a 100644 --- a/guides/source/form_helpers.md +++ b/guides/source/form_helpers.md @@ -657,7 +657,7 @@ NOTE: If the user has not selected a file the corresponding parameter will be an ### Dealing with Ajax -Unlike other forms making an asynchronous file upload form is not as simple as providing `form_for` with `remote: true`. With an Ajax form the serialization is done by JavaScript running inside the browser and since JavaScript cannot read files from your hard drive the file cannot be uploaded. The most common workaround is to use an invisible iframe that serves as the target for the form submission. +Unlike other forms, making an asynchronous file upload form is not as simple as providing `form_for` with `remote: true`. With an Ajax form the serialization is done by JavaScript running inside the browser and since JavaScript cannot read files from your hard drive the file cannot be uploaded. The most common workaround is to use an invisible iframe that serves as the target for the form submission. Customizing Form Builders ------------------------- |