- The document discusses creating a Magento extension module called "Olctw_Phpconf" that outputs the text "hello world". - It goes through the process of creating the necessary files and configurations to define the module, block, controller, and template to display the text without code in the controller. - It demonstrates how to move the code from the controller into a block class, layout, and template to separate the code according to Magento standards.

1. by kiang @ phpconf taiwan 2013
Magento Extension

2. Who is kiang?
● Google “Finjon Kiang”
→ About 85,100 results (0.27 seconds) @ 00:42 today
● Taiwan PHP User Group
→ http://twpug.net
● Just This Computer Studio
→ http://olc.tw
● Just Play
→ http://travel.olc.tw

3. Why English?
Because my English is poor.
I need more practices,
Sorry for those who hate English.

4. Why Magento?
● 169,571 live websites using Magento today
→ http://trends.builtwith.com/shop/Magento
● Magento ran on 11% of the top 10K sites
→ http://trends.builtwith.com/shop
● Some customers said
“Hey, we want to use Magento”
...This is a real life

5. <?php echo 'hello world';

6. <?php echo 'hello world';
app/etc/modules/Olctw_Phpconf.xml
<?xml version="1.0"?>
<config>
<modules>
<Olctw_Phpconf>
<active>true</active>
<codePool>community</codePool>
</Olctw_Phpconf>
</modules>
</config>

7. <?php echo 'hello world';
app/code/
→ core
→ community
→ local

8. <?php echo 'hello world';
app/code/community/Olctw/Phpconf/
→ etc/config.xml
→ controllers/IndexController.php

9. <?php echo 'hello world';
etc/config.xml
<?xml version="1.0" encoding="UTF-8"?>
<config>
<frontend>
<routers>
<phpconf>
<use>standard</use>
<args>
<module>Olctw_Phpconf</module>
<frontName>phpconf</frontName>
</args>
</phpconf>
</routers>
</frontend>
</config>

10. <?php echo 'hello world';
controllers/IndexController.php
<?php
class Olctw_Phpconf_IndexController extends
Mage_Core_Controller_Front_Action {
public function indexAction() {
echo 'hello world';
}
}

11. <?php echo 'hello world';

12. <?php echo 'hello world';
controllers/IndexController.php
$this->loadLayout();
$block = $this->getLayout()->createBlock('core/text')-
>setText('hello world');
$this->getLayout()->getBlock('content')->append($block);
$this->renderLayout();

13. <?php echo 'hello world';

14. <?php echo 'hello world';
Move 'hello world' from controller to block

15. <?php echo 'hello world';
etc/config.xml
<global>
<blocks>
<Olctw_Phpconf>
<class>Olctw_Phpconf_Block</class>
</Olctw_Phpconf>
</blocks>
</global>

16. <?php echo 'hello world';
app/code/community/Olctw/Phpconf/
→ Block/Hello.php

17. <?php echo 'hello world';
Block/Hello.php
<?php
class Olctw_Phpconf_Block_Hello extends
Mage_Core_Block_Template {
protected function _toHtml() {
return 'hello world';
}
}

18. <?php echo 'hello world';
controllers/IndexController.php
$block = $this->getLayout()->createBlock('core/text')-
>setText('hello world');
→
$block = $this->getLayout()-
>createBlock('Olctw_Phpconf/hello');

19. <?php echo 'hello world';
put 'hello world' block into layout

20. <?php echo 'hello world';
controllers/IndexController.php
public function indexAction() {
$this->loadLayout();
$this->renderLayout();
}

21. <?php echo 'hello world';
etc/config.xml
<config>
<frontend>
<layout>
<updates>
<Olctw_Phpconf>
<file>olctw_phpconf.xml</file>
</Olctw_Phpconf>
</updates>
</layout>
</frontend>
</config>

22. <?php echo 'hello world';
app/design/frontend/base/default/layout/
→ olctw_phpconf.xml

23. <?php echo 'hello world';
olctw_phpconf.xml
<?xml version="1.0"?>
<layout version="0.1.0">
<phpconf_index_index>
<reference name="content">
<block type="Olctw_Phpconf/hello"></block>
</reference>
</phpconf_index_index>
</layout>

24. <?php echo 'hello world';
move 'hello world' to template

25. <?php echo 'hello world';
olctw_phpconf.xml
<block type="Olctw_Phpconf/hello"
template="olctw_phpconf/hello.phtml"></block>

26. <?php echo 'hello world';
app/design/frontend/base/default/template/
→ olctw_phpconf/hello.phtml

27. <?php echo 'hello world';
olctw_phpconf/hello.phtml
hello world

28. <?php echo 'hello world';
Block/Hello.php
<?php
class Olctw_Phpconf_Block_Hello extends
Mage_Core_Block_Template {
}

29. <?php echo 'hello world';
Interaction between block and template

30. <?php echo 'hello world';
Block/Hello.php
public function getStoreName() {
return Mage::app()->getStore()->getName();
}

31. <?php echo 'hello world';
olctw_phpconf/hello.phtml
hello world @ <?php echo $this->getStoreName(); ?>

32. <?php echo 'hello world';