method

link_to_function

v3.2.8 - Show latest stable - 2 notes - Class: ActionView::Helpers::JavaScriptHelper

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What's this?

link_to_function(name, function, html_options={}) public

Returns a link whose onclick handler triggers the passed JavaScript.

The helper receives a name, JavaScript code, and an optional hash of HTML options. The name is used as the link text and the JavaScript code goes into the onclick attribute. If html_options has an :onclick, that one is put before function. Once all the JavaScript is set, the helper appends “; return false;”.

The href attribute of the tag is set to “#” unless html_options has one.

link_to_function "Greeting", "alert('Hello world!')", :class => "nav_link"
# => <a class="nav_link" href="#" onclick="alert('Hello world!'); return false;">Greeting</a>

Show source

# File actionpack/lib/action_view/helpers/javascript_helper.rb, line 102
      def link_to_function(name, function, html_options={})
        onclick = "#{"#{html_options[:onclick]}; " if html_options[:onclick]}#{function}; return false;"
        href = html_options[:href] || '#'

        content_tag(:a, name, html_options.merge(:href => href, :onclick => onclick))
      end

July 2, 2008

7 thanks

error in block code example

I guess there’s an error in this part of the code:

link_to_function("Show me more", nil, :id => "more_link") do |page|
  page[:details].visual_effect  :toggle_blind
  page[:more_link].replace_html "Show me less"
end

It doesn’t work. It should be:

link_to_function("Show me more", nil, :id => "more_link") do |page|
  page[:details].toggle "Blind"
  page[:more_link].replace_html "Show me less"
end

Using Rails 2.1.0

July 23, 2008 - (>= v2.1.0)

0 thanks

Another solution for visual_effect in code block example in link_to_remote

Update: Code block example in link_to_function not link_to_remote (can’t edit subject annymore :( )

This doesn’t work:

page[:details].visual_effect :toggle_blind

My solution:

link_to_function

Related methods

error in block code example

Another solution for visual_effect in code block example in link_to_remote

page[:details].visual_effect :toggle_blind

page.visual_effect :toggle_blind, ‘details’