How to prevent enter key submit in rails

Simple example:

 <%= form_for :post, url: posts_path  do |f|%>
    <p>
        <%= f.label :title%><br/>
        <%= f.text_field :title%>
    </p>
    <p>
        <%= f.label :text%><br/>
        <%= f.text_area :text%>
    </p>
    <p>
        <%= f.submit%>
    </p>
<%end%>

I think this is a Rails default event handling. In here, if the user presses the enter key, it submits the params.

But in my case, I have to use the enter key for another event.

I have to search users with another input field by pressing the enter key.

But if I use form_for it submits the form. :(

How can I prevent submitting with the enter key in rails?

Do I have to use plain html tags? Like <form> tag and <submit> button?

Any good solutions?