Disable fields in detail view form if a checkbox is checked

tablename-dv.js

$j(() => {
	// on checking or unchecking the 'Is absent' checkbox, disable/enable fields accordingly
	$j('#is_abscent').on('change', updateFieldsBasedOnAbsence);

	setTimeout(updateFieldsBasedOnAbsence, 400); // run after the page is fully loaded
})

const updateFieldsBasedOnAbsence = () => {
	// Change is_abscent to your actual checkbox field name
	const isAbsent = $j('#is_abscent').is(':checked');

	// disable/enable fields based on the absence checkbox
	// change the names of the fields to match the actual fields you want to disable
	$j('#nl_from, #nl_to, #dr_from, #dr_to, #mistakes, #warnings, #num_pages')
		.prop('disabled', isAbsent)
		.toggleClass('disabled', isAbsent);

	// the 2 fields below are defined in AppGini as option lists,
	// so they need special handling via select2
	$j('#new_lesson').select2(isAbsent ? 'disable' : 'enable');
	$j('#daily_revision').select2(isAbsent ? 'disable' : 'enable');

	// 'daily_progress_items' is a child table and we want to disable adding new records is checkbox checked
	// Change 'daily_progress_items' to actual child table name and 'progress_report' to actual lookup field name
	// that binds the child table to the parent one.
	$j('#panel_daily_progress_items-progress_report .btn-success').toggleClass('hidden', isAbsent);

	// empty the fields if the record is marked as absent
	if(isAbsent) {
		// change the field names below to match yours
		$j('#nl_from, #nl_to, #dr_from, #dr_to, #mistakes, #warnings, #num_pages')
			.val('');
		$j('#new_lesson, #daily_revision').select2('val', '');
	}
}