Passing JavaScript variable to ruby-on-rails controller

2021-02-21 10:37:09分类：常见问题 / JavaScript 答疑阅读(18)评论(0)

How can I pass a variable (id) from the JavaScript listener: Gmaps.map.callback = function() { ... ... google.maps.event.addListener(marker, 'click', function() { var id = this.currentMarker; alert(id); }); } } To the instance variable (@foo) in ruby-on-rails controller def create @foo = ??? ... end to correctly create a relationship in the view (form): <%= form_for user.relationships.build(:followed_id => @foo.id) do |f| %>

<%= f.hidden_field :followed_id %>

<%= f.submit "Follow" %>

<% end %> Thanks!

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