🎯 Super simple app with server code as a first step in understanding Jam

[Dean Babic]

Home is a Virtual table with nothing in it but a JS code and a template:

<!-- Home page start -->

<div class="home-view">

<div class="form-body">

<div class="row">

<div class="date"></div>

<div id="date"></div>

</div>

</div>

</div>

function on_view_form_created(item) {

var date = new Date(new Date().setMonth(new Date().getMonth() - 48));

$("#date").text(date);

}

It displays:

Now that we know how to "bind" the value to some DIV ID (date), we can calculate summary for some table. For example "test" table with f1 field and display it:

Here is a JS code:

function on_view_form_created(item) {

var total;

item.server("get_total", function (total, error) {

if (error) {

console.error("Error fetching total:", error);

return;

}

$("#date").text(total);

});

}

and the server:

def get_total(item):

result = 0;

copy = task.test.copy()

item.set_where(deleted=0)

copy.open(fields=['f1'],

funcs={'f1': 'sum'})

if copy.record_count():

result = copy.f1.value

return result; Thats it. D.