select2_wrapper.js

var Select2 = React.createClass({
    componentDidMount: function() {
        $(this._ref).select2({data: this.props.items});
    },
    
    render: function() {        
        return (
            <select 
                ref={
                    function(input) {
                        this._ref = input;
                    }
                }>
            </select>
        );
    },
    
    componentDidUpdate: function() {
        $(this._ref).select2('destroy');
        $(this._ref).select2({data: this.props.items});
    }
});