Description

This plugin allows you to use predefined calculated callbacks or register any callback you want to perform any calculations with data outputed by Dynamic Field widget.

Default callbacks:

• increase_value_by_percentage - increase default value of Dynamic Fild widget to spcified number of percents.
• decrease_value_by_percentage - decrease default value of Dynamic Fild widget to spcified number of percents.
• sum_fields - retruns sum of default field and any additional fields you want.
• fields_diff - retruns difference of default field and any additional fields you want.
• mupltiple_fields - retruns the result of multiplying of default field and any additional fields you want.

Config example

This code should be added into functions.php file of active theme:

add_filter( 'jet-engine-calculated-callback/config', function( $callbacks = array() ) {

    /**
     * Dynamic total price depending on guests number
     * $field_value - is default price per guest for example
     */
    $callbacks['custom_callback'] = function( $field_value ) {

        $additional_field       = 'guests-number';
        $additional_field_value = jet_engine()->listings->data->get_meta( $additional_field );
        $result                 = 0;

        if ( $additional_field_value >= 10 ) {
            $result = $field_value * $additional_field_value - $field_value * $additional_field_value * 0.2;
        } elseif ( 5 <= $additional_field_value && $additional_field_value < 10 ) {
            $result = $field_value * $additional_field_value - $field_value * $additional_field_value * 0.1;
        } else {
            $result = $field_value * $additional_field_value;
        }

        return $result;

    };

    return $callbacks;

} );

Where:

• $field_value - is value of the field selected in Dynamic Filed widget settings.
• $callbacks - is all registered custom callbacks list.
• body of custom_callback funtion - is any calculations you want to perform.