app/views/articles/stock.js.erb
<% path = current_user.stock?(@article) ? stock_article_path(@article) : unstock_article_path(@article) %>
$('a.stock-link[href="<%= escape_javascript(path) %>"]')
.html('<%= escape_javascript(render partial: "articles/stock_count", locals: {article: @article}) %>');
$('a.stock-text-link[href="<%= escape_javascript(path) %>"]')
.html('<%= escape_javascript(render partial: "articles/stock_text", locals: {article: @article}) %>');
$('.stock-users')
.replaceWith('<%= escape_javascript(render partial: "articles/stock_users", locals: {article: @article}) %>');