Nerddinner inserting longitude and latitude to database MVC

Question

i am facing a problem in the nerddinner, what i am facing:

in the DinnerForm.ascx there is a javascript code

 $(document).ready(function () {
        NerdDinner.EnableMapMouseClickCallback();

        $("#Dinner_Address").blur(function (evt) {
            //If it's time to look for an address, 
            // clear out the Lat and Lon
            $("#Dinner_Latitude").val("0");
           $("#Dinner_Longitude").val("0");
            var address = jQuery.trim($("#Dinner_Address").val());
            if (address.length < 1)
                return;
            NerdDinner.FindAddressOnMap(address);
        });
    });

when i run the project, and i insert new Dinner, the longitude and the latitude inserted with value 0;

and when i changed the "0" to any number

$(document).ready(function () { NerdDinner.EnableMapMouseClickCallback();

    $("#Dinner_Address").blur(function (evt) {
        //If it's time to look for an address, 
        // clear out the Lat and Lon
        $("#Dinner_Latitude").val("12");//
       $("#Dinner_Longitude").val("12");//
        var address = jQuery.trim($("#Dinner_Address").val());
        if (address.length < 1)
            return;
        NerdDinner.FindAddressOnMap(address);
    });
});

it inserts the value 12 for both long and lat to the database

so i knew its inserting this value to the database, but am not sure actually

so i really want to know how i can fix this, plz any one :D

Answer 1

Look in Scripts/NerdDinner.js for this block of code:

//If we've found exactly one place, that's our address.
//lat/long precision was getting lost here with toLocaleString, changed to toString
if (NerdDinner._points.length === 1) {
    $("#Latitude").val(NerdDinner._points[0].Latitude.toString());
    $("#Longitude").val(NerdDinner._points[0].Longitude.toString());
}

The problem appears to be that this script tries to set the values for elements named Latitude and Longitude, but in Views\Dinners\DinnerForm.ascx, those element ids are resolved as Dinner_Latitude and Dinner_Longitude, respectively. As a workaround, you should be able modify two lines in NerdDinner.js so it would update either element it finds:

if (NerdDinner._points.length === 1) {
    $("#Latitude,#Dinner_Latitude").val(NerdDinner._points[0].Latitude.toString());
    $("#Longitude,#Dinner_Longitude").val(NerdDinner._points[0].Longitude.toString());
}

Answer 2

My problem was that none of the values in the edit page were persisted. It was an issue in DinnersController.cs.

I changed

UpdateModel(dinner, "Dinner");

to

UpdateModel(dinner);

It seemed that the problem was that the controller code was expecting keys named Dinner.Id, Dinner.Title, etc. but the keys were actually named just Id and Title (etc.).