Victor Font replied 4 days ago

No. Javascript works in the browser. You do not have to submit. Did you update the code to match your the fields' HTML input ID?

Victor Font replied 4 days ago

If you copied the code from the KB and only changed the field HTML ids, then you missed at least one. This line is missing the semi-colon at the end: start_time = start_time.slice(0,5)

I'm not sure why you don't see a error specific to that line in the console. start_time will not have a value. Your code editor should have picked up the error, too. Are you using a code editor?

The rest of the code appears to be fine. It's a standard JavaScript date math calculation. As an FYI, you can't do date math directly on the value of a date or time field in JavaScript or PHP. Those fields need to be converted to timestamps where the magic and then converted back to readable text. I have my own functions for testing code and database performance with Formidable. I calculate mine to micro-seconds for performance tuning, and minutes for form display.

David Burley replied 4 days ago

so I found the issue causing the console error and it was definitely my fault I hadn't seen of the keys that needed changing. This is now working in that there are no errors but the field still isn't being populated.

So I have the start and end time fields as Time fields is this correct ?

What format should the results field be

Thanks for the assistance btw

David Burley replied 4 days ago

fixed it, I had to change the duration results field to be a text field

However, I now get the results in the format HH:MM I need the results in minutes. The code I used was:-

jQuery(document).ready(function($){

$('#field_hlbr1,#field_5v5lu').change(function(){

var start_time = $("#field_hlbr1").val();
var end_time = $("#field_5v5lu").val();

end_time = end_time.slice(0,5);
start_time = start_time.slice(0,5)

if(start_time !="" && end_time !=""){
start_time = start_time.split(":");
end_time = end_time.split(":");
var startDate = new Date(0, 0, 0, start_time[0], start_time[1], 0);
var endDate = new Date(0, 0, 0, end_time[0], end_time[1], 0);
var diff = endDate.getTime() - startDate.getTime();
var hours = Math.floor(diff / 1000 / 60 / 60);
diff -= hours * 1000 * 60 * 60;
var minutes = Math.floor(diff / 1000 / 60);
minutes = (minutes < 9 ? "00" : minutes);

console.log(hours + ":"+minutes);
$("#field_j16i2").val(hours + ":"+minutes);
$("#field_j16i2").change();
}
});
});

Any ideas how to modify to just show the results in minutes instead ?

David Burley replied 4 days ago

sorted, with the use of ChatGPT 😉

jQuery(document).ready(function($){

$('#field_nht2u, #field_nlr2b').change(function(){

var start_time = $("#field_nht2u").val();
var end_time = $("#field_nlr2b").val();

end_time = end_time.slice(0, 5); // Extract hours and minutes part
start_time = start_time.slice(0, 5); // Extract hours and minutes part

if(start_time !== "" && end_time !== ""){
start_time = start_time.split(":");
end_time = end_time.split(":");

var startDate = new Date(0, 0, 0, start_time[0], start_time[1], 0);
var endDate = new Date(0, 0, 0, end_time[0], end_time[1], 0);

// Calculate the difference in milliseconds
var diff = endDate.getTime() - startDate.getTime();

// Convert milliseconds to minutes
var totalMinutes = Math.floor(diff / 1000 / 60);

// Display total minutes in the input field
$("#field_8ynxl").val(totalMinutes);
$("#field_8ynxl").change();

console.log(totalMinutes + " minutes");
}
});
});