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| author | Yves Senn <yves.senn@gmail.com> | 2013-03-05 10:56:36 +0100 |
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| committer | Yves Senn <yves.senn@gmail.com> | 2013-03-05 10:58:39 +0100 |
| commit | 0e7abf21dd38ab6fb402843afb8ac42ec550d901 (patch) | |
| tree | 4e7ffb09c9b243c81d7a9941b5ad8b3aa421272b /guides/source/action_controller_overview.md | |
| parent | aeb48c3b29c25576241a947722ae8db49ed129e4 (diff) | |
| download | rails-0e7abf21dd38ab6fb402843afb8ac42ec550d901.tar.gz rails-0e7abf21dd38ab6fb402843afb8ac42ec550d901.tar.bz2 rails-0e7abf21dd38ab6fb402843afb8ac42ec550d901.zip | |
example for `accepts_nested_attribtues_for` and strong parameters.
Closes #9558.
Diffstat (limited to 'guides/source/action_controller_overview.md')
| -rw-r--r-- | guides/source/action_controller_overview.md | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/guides/source/action_controller_overview.md b/guides/source/action_controller_overview.md index 027f4b785f..61eb2ef089 100644 --- a/guides/source/action_controller_overview.md +++ b/guides/source/action_controller_overview.md @@ -281,6 +281,15 @@ root-key because normally it does not exist when calling `new`: params.fetch(blog:, {}).permit(:title, :author) ``` +`accepts_nested_attributes_for` allows you update and destroy the +associated records. This is based on the `id` and `_destroy` +parameters: + +```ruby +# permit :id and :_destroy +params.require(:author).permit(:name, books_attributes: [:title, :id, :_destroy]) +``` + #### Outside the Scope of Strong Parameters The strong parameter API was designed with the most common use cases |