method

field_name

Importance_1
v7.0.0 - Show latest stable - 0 notes - Class: ActionView::Helpers::FormBuilder
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field_name(method, *methods, multiple: false, index: @index) public

Generate an HTML name attribute value for the given name and field combination

Return the value generated by the FormBuilder for the given attribute name.

<%= form_for @post do |f| %>
  <%= f.text_field :title, name: f.field_name(:title, :subtitle) %>
  <%# => <input type="text" name="post[title][subtitle]">
<% end %>

<%= form_for @post do |f| %>
  <%= f.field_tag :tag, name: f.field_name(:tag, multiple: true) %>
  <%# => <input type="text" name="post[tag][]">
<% end %>
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