instance method `link_to_if`

Ruby on Rails 5.2.8.1

Since v2.2.3

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

link_to_if(condition, name, options = {}, html_options = {}, &block)

Creates a link tag of the given name using a URL created by the set of options if condition is true, otherwise only the name is returned. To specialize the default behavior, you can pass a block that accepts the name or the full argument list for link_to_unless (see the examples in link_to_unless).

Examples

<%= link_to_if(@current_user.nil?, "Login", { controller: "sessions", action: "new" }) %>
# If the user isn't logged in...
# => <a href="/sessions/new/">Login</a>

<%=
   link_to_if(@current_user.nil?, "Login", { controller: "sessions", action: "new" }) do
     link_to(@current_user.login, { controller: "accounts", action: "show", id: @current_user })
   end
%>
# If the user isn't logged in...
# => <a href="/sessions/new/">Login</a>
# If they are logged in...
# => <a href="/accounts/show/3">my_username</a>

Parameters

condition req
name req
options opt = {}
html_options opt = {}
block block

Source

# File actionview/lib/action_view/helpers/url_helper.rb, line 432
      def link_to_if(condition, name, options = {}, html_options = {}, &block)
        if condition
          link_to(name, options, html_options)
        else
          if block_given?
            block.arity <= 1 ? capture(name, &block) : capture(name, options, html_options, &block)
          else
            ERB::Util.html_escape(name)
          end
        end
      end

Defined in actionview/lib/action_view/helpers/url_helper.rb line 432 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionView::Helpers::UrlHelper

Signature

Examples

Parameters