sales_order_place_after event not working

Question

I trying to execute my second observer which reacts to when Place order button has been clicked (sales_order_place_event). My first observer running good but second observer isn't. Could anybody tell me why? what am i doing wrong here?
config.xml

<events>
    <controller_front_init_before>
        <observers>
            <test_capture>
                <class>Foo_Test_Model_Observer</class>
                <method>capture</method>
                <type>singleton</type>
            </test_capture>
        </observers>
    </controller_front_init_before>
    <sales_order_place_after>
        <observers>
            <test_order>
                <class>Foo_Test_Model_Observer</class>
                <method>order</method>
                <type>singleton</type>
            </test_order>
        </observers>
    </sales_order_place_after>
</events>

Observer.php

class Foo_Test_Model_Observer {

    public function capture(Varien_Event_Observer $observer) {
        /*some code*/

    }

    public function order(Varien_Event_Observer $observer){

        echo __LINE__;exit;

    }
}

I tried to put my method in <controller_front_init_before> and run.. it works but my <sales_order_place_after> is not working

Answer 1

It happens in an ajax request, so you don't see the "echo" output in the frontend. If you inspect the response in the browser console you should see it.

I recommend to set up xdebug for step by step debugging. Then you can use a breakpoint instead of echo and exit. You also get information at runtime about variables and the call stack. It's really worth the initial effort.

Answer 2

You have set the same observer name: "test". Try changing xml like this:

<events>
        <controller_front_init_before>
            <observers>
                <test>
                    <class>Foo_Test_Model_Observer</class>
                    <method>capture</method>
                    <type>singleton</type>
                </test>
            </observers>
        </controller_front_init_before>
        <sales_order_place_after>
            <observers>
                <test_order>
                    <class>Foo_Test_Model_Observer</class>
                    <method>order</method>
                    <type>singleton</type>
                </test_order>
            </observers>
        </sales_order_place_after>
    </events>

Answer 3

Try this:
config.xml

<events>
    <controller_front_init_before>
        <observers>
            <foo_test_capture>
                <class>Foo_Test_Model_Observer</class>
                <method>testCapture</method>
            </foo_test_capture>
        </observers>
    </controller_front_init_before>
    <sales_order_place_after>
        <observers>
            <foo_test_order>
                <class>Foo_Test_Model_Observer</class>
                <method>testOrder</method>
            </foo_test_order>
        </observers>
    </sales_order_place_after>
</events>

Observer.php

class Foo_Test_Model_Observer
{

    public function testCapture(Varien_Event_Observer $observer) {
        echo 'testCapture';die;

    }

    public function testOrder(Varien_Event_Observer $observer){

        echo 'testOrder';die;

    }
}