[英]Passing javascript variables to rails controller
這是我堅持的問題。 我想將javascript變量傳遞給rails控制器。
<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>
我的控制器
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
先感謝您!
從技術上講,您不能在兩種語言之間傳遞變量。
您可以通過在url后面附加這些值到Rails控制器
<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>
在您的控制器中
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:確保相應地配置config / route.rb
jQuery中的Ajax代碼:
$("#submit_button").submit(function(event) {
/* stop form from submitting normally */
event.preventDefault();
/* get values from elements on the page: */
var mdate = $('#mdate').val();
var phone = $('#phone').val();
/* Send the data using post and put the results in a div */
$.ajax({
url: "/BookCreate/?mdate="+mdate+"&phone="+phone,
type: "post",
data: values,
success: function(){
alert('Saved Successfully');
},
error:function(){
alert('Error');
}
});
});
路線:(我假設您的控制器名稱為book)
match '/BookCreate', to: 'book#create'
為此,您必須將jquery文件添加到您的代碼或此鏈接中
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script src="http://code.jquery.com/jquery-migrate-1.2.1.min.js"></script>
您可以使用類似
$.post("/bookings?booking[phone]=" + phone + "&booking[book_date]=" + mdate)
它將使用參數散列轉到BookingsController#create
操作:
{ booking: { phone: "entered from prompt", book_date: "26 December 2013" } }
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