javascript - 将 javascript 变量传递给 Rails Controller

Question

这是我遇到的问题。我想将 javascript 变量传递给 Rails Controller 。

<script>
var mdate = "26 December 2013";
var phone = prompt('Enter your phone!');
if (phone) {
    //Passing mdate and phone variables to rails controller(book_date & phone)
}
else
{
    alert("Cancelled");
}
</script>

我的 Controller

def new
        @booking = Booking.new
end
def create
    @booking = Booking.new(book_param)
    if @booking.save
        redirect_to root_url
    else
        flash[:notice_booking_failed] = true
        redirect_to root_url
    end
end

private
def book_param
    params.require(booking).permit(:id, :book_date, :phone)
end

提前致谢!

Answer 1

从技术上讲，您不能在两种语言之间传递变量。

您可以通过在 url 中附加将这些值传递给 rails Controller

<script>
var mdate = "26 December 2013";
var phone = prompt('Enter your phone!');
if (phone) {
    //Passing mdate and phone variables to rails controller(book_date & phone)
    window.open("localhost:3000//controller/create?mdate="+mdate+"&phone="+phone,"_self")
}
else
{
    alert("Cancelled");
}
</script>

在你的 Controller 中

def create
    data = params[:date]
    phone = params[:phone]
    @booking = Booking.new(book_param)
    if @booking.save
        redirect_to root_url
    else
        flash[:notice_booking_failed] = true
        redirect_to root_url
    end
end

注意:确保相应地配置 config/route.rb

更多信息 http://guides.rubyonrails.org/routing.html