Merge pull request rails#50245 from seanpdoyle/field-id-field-name-docs

Action View Docs: `field_id` and `field_name` examples [ci skip]

Author: p8

actionview/lib/action_view/helpers/form_helper.rb

@@ -1780,12 +1780,12 @@ def field_id(method, *suffixes, namespace: @options[:namespace], index: @options
       #
       #   <%= form_for @post do |f| %>
       #     <%= f.text_field :title, name: f.field_name(:title, :subtitle) %>
-      #     <%# => <input type="text" name="post[title][subtitle]">
+      #     <%# => <input type="text" name="post[title][subtitle]"> %>
       #   <% end %>
       #
       #   <%= form_for @post do |f| %>
       #     <%= f.text_field :tag, name: f.field_name(:tag, multiple: true) %>
-      #     <%# => <input type="text" name="post[tag][]">
+      #     <%# => <input type="text" name="post[tag][]"> %>
       #   <% end %>
       #
       def field_name(method, *methods, multiple: false, index: @options[:index])

actionview/lib/action_view/helpers/form_tag_helper.rb

@@ -91,11 +91,11 @@ def form_tag(url_for_options = {}, options = {}, &block)
       # attribute name.
       #
       #   <%= label_tag :post, :title %>
-      #   <%= text_field_tag :post, :title, aria: { describedby: field_id(:post, :title, :error) } %>
+      #   <%= text_field :post, :title, aria: { describedby: field_id(:post, :title, :error) } %>
       #   <%= tag.span("is blank", id: field_id(:post, :title, :error) %>
       #
       # In the example above, the <tt><input type="text"></tt> element built by
-      # the call to <tt>text_field_tag</tt> declares an
+      # the call to <tt>text_field</tt> declares an
       # <tt>aria-describedby</tt> attribute referencing the <tt><span></tt>
       # element, sharing a common <tt>id</tt> root (<tt>post_title</tt>, in this
       # case).
@@ -123,11 +123,11 @@ def field_id(object_name, method_name, *suffixes, index: nil, namespace: nil)
       # Return the value generated by the <tt>FormBuilder</tt> for the given
       # attribute name.
       #
-      #   <%= text_field_tag :post, :title, name: field_name(:post, :title, :subtitle) %>
-      #   <%# => <input type="text" name="post[title][subtitle]">
+      #   <%= text_field :post, :title, name: field_name(:post, :title, :subtitle) %>
+      #   <%# => <input type="text" name="post[title][subtitle]"> %>
       #
-      #   <%= text_field_tag :post, :tag, name: field_name(:post, :tag, multiple: true) %>
-      #   <%# => <input type="text" name="post[tag][]">
+      #   <%= text_field :post, :tag, name: field_name(:post, :tag, multiple: true) %>
+      #   <%# => <input type="text" name="post[tag][]"> %>
       #
       def field_name(object_name, method_name, *method_names, multiple: false, index: nil)
         names = method_names.map! { |name| "[#{name}]" }.join