--- title: "Partial template name without Ruby identifier Rails 5" description: "Partial template can have any name which starts with underscore in Rails 5" canonical_url: "https://www.bigbinary.com/blog/rails-5-partial-template-name-need-not-be-a-valid-ruby-identifier" markdown_url: "https://www.bigbinary.com/blog/rails-5-partial-template-name-need-not-be-a-valid-ruby-identifier.md" --- # Partial template name without Ruby identifier Rails 5 Partial template can have any name which starts with underscore in Rails 5 - Author: Prajakta Tambe - Published: July 14, 2016 - Categories: Rails 5, Rails Before Rails 5, partials name should start with underscore and should be followed by any combination of letters, numbers and underscores. This rule was required because before [commit](https://github.com/rails/rails/commit/c67005f221f102fe2caca231027d9b11cf630484), rendering a partial without giving `:object` or `:collection` used to generate a local variable with the partial name by default and a variable name in ruby can't have dash and other things like that. In the following case we have a file named `_order-details.html.erb`. Now let's try to use this partial. ```ruby <%= render :partial => 'order-details' %> ``` We will get following error, if we try to render above view in Rails 4.x. ```ruby ActionView::Template::Error (The partial name (order-details) is not a valid Ruby identifier; make sure your partial name starts with underscore, and is followed by any combination of letters, numbers and underscores.): 2: 3: 4: Following code is rendered through partial named \_order-details.erb 5: <%= render :partial => 'order-details' %> 6: 7: ``` In the above the code failed because the partial name has a dash which is not a valid ruby variable name. In Rails 5, we can give our [partials any name which starts with underscore](https://github.com/rails/rails/commit/da9038e). ## Links - [Human page](https://www.bigbinary.com/blog/rails-5-partial-template-name-need-not-be-a-valid-ruby-identifier)