Compare FIELD value befaore saving the form - Form API
If you want to compare a field value with it self it was changed or not, you can do it using $node->original in hook_node_presave
Here I am comparing if checkbox was newly checked or was already checked. :)
function custom_node_presave($node) {
if ($node->field_name == 1 && $node->original->field_name == 0) {
//Do the magic here...
}
}
Here I am comparing if checkbox was newly checked or was already checked. :)
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