diff options
Diffstat (limited to 'guides/source/upgrading_ruby_on_rails.md')
| -rw-r--r-- | guides/source/upgrading_ruby_on_rails.md | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/guides/source/upgrading_ruby_on_rails.md b/guides/source/upgrading_ruby_on_rails.md index 6e927d7244..d932fc8d8f 100644 --- a/guides/source/upgrading_ruby_on_rails.md +++ b/guides/source/upgrading_ruby_on_rails.md @@ -278,7 +278,7 @@ You can now just call the dependency once with a wildcard. ### `ActionView::Helpers::RecordTagHelper` moved to external gem (record_tag_helper) -`content_tag_for` and `div_for` has been removed in favor of just using `content_tag`. To continue using it, add the `record_tag_helper` gem to your Gemfile: +`content_tag_for` and `div_for` have been removed in favor of just using `content_tag`. To continue using the older methods, add the `record_tag_helper` gem to your Gemfile: ```ruby gem 'record_tag_helper', '~> 1.0' @@ -397,6 +397,15 @@ When using Ruby 2.4, you can preserve the timezone of the receiver when calling ActiveSupport.to_time_preserves_timezone = false +### Changes with JSON/JSONB serialization + +In Rails 5.0, how JSON/JSONB attributes are serialized and deserialized changed. Now, if +you set a column equal to a `String`, Active Record will no longer turn that string +into a `Hash`, and will instead only return the string. This is not limited to code +interacting with models, but also affects `:default` column settings in `db/schema.rb`. +It is recommended that you do not set columns equal to a `String`, but pass a `Hash` +instead, which will be converted to and from a JSON string automatically. + Upgrading from Rails 4.1 to Rails 4.2 ------------------------------------- @@ -1097,7 +1106,7 @@ on the Rails blog. The errata for the `PATCH` verb [specifies that a 'diff' media type should be used with `PATCH`](http://www.rfc-editor.org/errata_search.php?rfc=5789). One -such format is [JSON Patch](http://tools.ietf.org/html/rfc6902). While Rails +such format is [JSON Patch](https://tools.ietf.org/html/rfc6902). While Rails does not support JSON Patch natively, it's easy enough to add support: ``` @@ -1301,7 +1310,7 @@ get 'こんにちは', controller: 'welcome', action: 'index' get '/' => 'root#index' ``` -* Rails 4.0 has removed `ActionDispatch::BestStandardsSupport` middleware, `<!DOCTYPE html>` already triggers standards mode per http://msdn.microsoft.com/en-us/library/jj676915(v=vs.85).aspx and ChromeFrame header has been moved to `config.action_dispatch.default_headers`. +* Rails 4.0 has removed `ActionDispatch::BestStandardsSupport` middleware, `<!DOCTYPE html>` already triggers standards mode per https://msdn.microsoft.com/en-us/library/jj676915(v=vs.85).aspx and ChromeFrame header has been moved to `config.action_dispatch.default_headers`. Remember you must also remove any references to the middleware from your application code, for example: |