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CHANGELOG.md

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Rails 5.1.0 (April 27, 2017)

  • Remove the option encode_special_chars misnomer from strip_tags

    As of rails-html-sanitizer v1.0.3, the sanitizer will ignore the encode_special_chars option.

    Fixes #28060.

    Andrew Hood

  • Change the ERB handler from Erubis to Erubi.

    Erubi is an Erubis fork that's svelte, simple, and currently maintained. Plus it supports --enable-frozen-string-literal in Ruby 2.3+.

    Compatibility: Drops support for <%=== tags for debug output. These were an unused, undocumented side effect of the Erubis implementation.

    Deprecation: The Erubis handler will be removed in Rails 5.2, for the handful of folks using it directly.

    Jeremy Evans

  • Allow render locals to be assigned to instance variables in a view.

    Fixes #27480.

    Andrew White

  • Add check_parameters option to current_page? which makes it more strict.

    Maksym Pugach

  • Return correct object name in form helper method after fields_for.

    Fixes #26931.

    Yuji Yaginuma

  • Use ActionView::Resolver.caching? (config.action_view.cache_template_loading) to enable template recompilation.

    Before it was enabled by consider_all_requests_local, which caused recompilation in tests.

    Max Melentiev

  • Add form_with to unify form_tag and form_for usage.

    Used like form_tag (where just the open tag is output):

    <%= form_with scope: :post, url: super_special_posts_path %>

    Used like form_for:

    <%= form_with model: @post do |form| %>
  <%= form.text_field :title %>
<% end %>

    Kasper Timm Hansen, Marek Kirejczyk

  • Add fields form helper method.

    <%= fields :comment, model: @comment do |fields| %>
  <%= fields.text_field :title %>
<% end %>

    Can also be used within form helpers such as form_with.

    Kasper Timm Hansen

  • Removed deprecated #original_exception in ActionView::Template::Error.

    Rafael Mendonça França

  • Render now accepts any keys for locals, including reserved keywords.

    Only locals with valid variable names get set directly. Others will still be available in local_assigns.

    Example of render with reserved keywords:

    <%= render "example", class: "text-center", message: "Hello world!" %>

<!-- _example.html.erb: -->
<%= tag.div class: local_assigns[:class] do %>
  <p><%= message %></p>
<% end %>

    Peter Schilling, Matthew Draper

  • Add :skip_pipeline option to several asset tag helpers

    javascript_include_tag, stylesheet_link_tag, favicon_link_tag, image_tag and audio_tag now accept a :skip_pipeline option which can be set to true to bypass the asset pipeline and serve the assets from the public folder.

    Richard Schneeman

  • Add :poster_skip_pipeline option to the video_tag helper

    video_tag now accepts a :poster_skip_pipeline option which can be used in combination with the :poster option to bypass the asset pipeline and serve the poster image for the video from the public folder.

    Richard Schneeman

  • Show cache hits and misses when rendering partials.

    Partials using the cache helper will show whether a render hit or missed the cache:

    Rendered messages/_message.html.erb in 1.2 ms [cache hit]
Rendered recordings/threads/_thread.html.erb in 1.5 ms [cache miss]

    This removes the need for the old fragment cache logging:

    Read fragment views/v1/2914079/v1/2914079/recordings/70182313-20160225015037000000/d0bdf2974e1ef6d31685c3b392ad0b74 (0.6ms)
Rendered messages/_message.html.erb in 1.2 ms [cache hit]
Write fragment views/v1/2914079/v1/2914079/recordings/70182313-20160225015037000000/3b4e249ac9d168c617e32e84b99218b5 (1.1ms)
Rendered recordings/threads/_thread.html.erb in 1.5 ms [cache miss]

    Though that full output can be reenabled with config.action_controller.enable_fragment_cache_logging = true.

    Stan Lo

  • Changed partial rendering with a collection to allow collections which implement to_a.

    Extracting the collection option had an optimization to avoid unnecessary queries of ActiveRecord Relations by calling #to_ary on the given collection. Instances of Enumerator or Enumerable are valid collections, but they do not implement #to_ary. By changing this to #to_a, they will now be extracted and rendered as expected.

    Steven Harman

  • New syntax for tag helpers. Avoid positional parameters and support HTML5 by default. Example usage of tag helpers before:

    tag(:br, nil, true)
content_tag(:div, content_tag(:p, "Hello world!"), class: "strong")

<%= content_tag :div, class: "strong" do -%>
  Hello world!
<% end -%>

    Example usage of tag helpers after:

    tag.br
tag.div tag.p("Hello world!"), class: "strong"

<%= tag.div class: "strong" do %>
  Hello world!
<% end %>

    Marek Kirejczyk, Kasper Timm Hansen

  • Change datetime_field and datetime_field_tag to generate datetime-local fields.

    As a new specification of the HTML 5 the text field type datetime will no longer exist and it is recommended to use datetime-local. Ref: https://html.spec.whatwg.org/multipage/forms.html#local-date-and-time-state-(type=datetime-local)

    Herminio Torres

  • Raw template handler (which is also the default template handler in Rails 5) now outputs HTML-safe strings.

    In Rails 5 the default template handler was changed to the raw template handler. Because the ERB template handler escaped strings by default this broke some applications that expected plain JS or HTML files to be rendered unescaped. This fixes the issue caused by changing the default handler by changing the Raw template handler to output HTML-safe strings.

    Eileen M. Uchitelle

  • select_tag's include_blank option for generation for blank option tag, now adds an empty space label, when the value as well as content for option tag are empty, so that we conform with html specification. Ref: https://www.w3.org/TR/html5/forms.html#the-option-element.

    Generation of option before:

    <option value=""></option>

    Generation of option after:

    <option value="" label=" "></option>

    Vipul A M

Please check 5-0-stable for previous changes.