Learn how to create Joomla components without actually "creating Joomla components"

1. Creating Components
without “creating components”
Brad Markle
@bwmarkle
inmotionhosting.com

2. an “extension”
What is a component?

3. plugins / modules / components
What is an extension?

4. What is an extension?
Components
Plugins
Modules

5. Which Components come already
installed?

7. But… what if you need

8. ● wiki
● forum
● classifieds
● site map
● glossary page
● support / ticket system

9. OPTION 1/4
Core hack:Just find the correct php files and edit
them
My site needs a _______.

10. OPTION 2/4 - Download an extension
My site needs a _______.

12. OPTION 3/4 - Install additional software
My site needs a _______.

16. wiki.yourdomain.com
yourdomain.com/wiki
store.yourdomain.com
yourdomain.com/store

17. OPTION 4/4
BUILD IT!
My site needs a _______.

18. BUILD IT yourself
● Build a component ● Create a
template override

19. You’re not going to learn it in an hour
Component Development

21. Wha ha ha, excellent.
Oh, you can write PHP?

22. Where do they go?
Template Overrides

23. JOOMLA/components/ com_content/views/ article/tmpl/ default.php
TEMPLATE_NAME/html/ com_content/ article/
default.php

24. What are they named?
Template Overrides

25. default.php
Applied to all
*******.php
Applied on a case-by-
case basis

26. How are they activated?
Template Overrides

27. default.php
No action needed
*******.php
Edit Article
Options
Alternative
Layout

28. I use this stuff every day
Essential Techniques

29. // Get a db connection
$db = JFactory::getDbo();

30. id name email username
1 John Smith johnsmith@domain.example johnsmith
2 Magda Hellman magda_h@domain.example magdah
3 Yvonne de Gaulle ydg@domain.example ydegaulle
loadResult()

31. loadObject()
id name email username
1 John Smith johnsmith@domain.example johnsmith
2 Magda Hellman magda_h@domain.example magdah
3 Yvonne de Gaulle ydg@domain.example ydegaulle

32. loadObjectList()
id name email username
1 John Smith johnsmith@domain.example johnsmith
2 Magda Hellman magda_h@domain.example magdah
3 Yvonne de Gaulle ydg@domain.example ydegaulle

33. // get information on the current user
$user = JFactory::getUser();

34. Prints human-readable information about a variable
print_r

35. // Convert all applicable characters to HTML entities
htmlentities

36. <script>
// harmful code goes here
</script>
&lt;script&gt;
// harmful code goes here
&lt;/script&gt;

37. <input type=’text’ value=’Howdy ya’ll’ />

38. // because injections and 1064’s aren’t fun
addslashes

39. INERT INTO #__table
(`id`,`message`)
VALUES (null,’Howdy
Ya’ll’)

40. JRequest::getVar('option');
// com_content
JRequest::getVar('view');
// article
JRequest::getVar('id');
// 1

41. please work, please work, please work, please work, please work,
please work, please work, please work, please work, please work, please work
Live Demonstration