This slide has been shown at WordPress Sydney Meetup in 11/Jun/2015. The demo is on github https://github.com/leocaseiro/ACF-Movie-Demo

1. bit.ly/wpsydacf
@leocaseiro
ACF
ADVANCED CUSTOM FIELDS FOR WP - 101
http://bit.ly/wpsydacf
By /Leo Caseiro @leocaseiro

2. WHO AM I
Brazilian - Web Developer at - -IDM Renet IPMG
Translator: /WordPress PT-BR Tuts+
Community: /BR WP Forum WordPress Stackoverflow
WordPress Plugin Developer

3. WHY WP IS AWESOME?

4. NATIVE WP CUSTOM FIELDS

5. NATIVE WP CUSTOM FIELDS = MESS

6. ADVANCED CUSTOM FIELDS

7. ACF: TYPES OF FIELDS 4.4.2 (FREE)

8. ACF: FEATURES - VALIDATION

9. ACF: FEATURES - CONDITIONAL LOGIC

10. ACF: FEATURES - PREFIX - SUFIX - PLACEHOLDER

11. ACF: RELATIONAL

12. ACF: JQUERY - GMAPS, DATE PICKER, COLOR PICKER

13. ACF: NEED MORE? (EXTENSIONS)

14. ACF: STEP BY STEP - MOVIE DATABASE SITE

15. ACF: STEP BY STEP - MOVIE DB - TAB DETAILS

16. ACF: STEP BY STEP - CLASSIFICATION

17. ACF: STEP BY STEP - PREFIX, SUFIX AND PLACEHOLDER

18. ACF: STEP BY STEP - RELATIONAL

19. ACF: STEP BY STEP - CONDITIONAL LOGIC

20. ACF: STEP BY STEP - COUNTRY ACTOR + MOVIE

21. FRONTEND - DEMO https://github.com/leocaseiro/acf-movie-demo

22. SHOW ME SOME CODE
<p><?php the_field('country'); ?></p>
<?php $subtitle = get_field('country'); echo $subtitle; ?>
<?php
//get_post_meta() works, better to use the_field() and get_field()
echo get_post_meta( get_the_ID(), 'country', true );
?>
ACF documentation

23. FRONTEND - FROM DATEPICKER TO DATE I18N
<?php
$release_date = get_field( 'release_date' ); //Format: yyyymmdd
echo date_i18n( 'l, F j, Y', strtotime( $release_date ) );
?>
https://codex.wordpress.org/Function_Reference/date_i18n

24. FRONTEND - CONDITIONAL LOGIC
<?php if ( get_field( 'has_video' ) ) : ?>
<h3>Trailer</h3>
<?php the_field('trailer'); //oEmbed ?>
<hr>
<?php endif; ?>
http://www.advancedcustomfields.com/resources/code-examples/#using-conditional statements

25. FRONTEND - RELATIONAL PARENT (MOVIE)
<ul>
<?php $cast = get_field('cast');
foreach( $cast as $post): // var must be called $post (IMPORTANT)
setup_postdata( $post ); ?>
<li>
<a href="<?php the_permalink(); ?>">
<?php the_title(); ?>
<?php the_post_thumbnail(); ?>
</a>
</li>
<?php wp_reset_postdata(); // IMPORTANT - reset the $post object
// so the rest of the page works correctly
endforeach;
?>
</ul>
http://www.advancedcustomfields.com/resources/code-examples/#using-conditional statements

26. FRONTEND - RELATIONAL CHILD (ACTOR)
get_posts()
<?php
$movies = get_posts( array(
'post_type' => 'movie',
'meta_query' => array(
array(
'key' => 'cast', // Field Name (ACF)
'value' => '"' . get_the_ID() . '"', //Leave ""
'compare' => 'LIKE'
)
)
));
?>
http://www.advancedcustomfields.com/resources/tutorials/querying-relationship-fields/

27. FRONTEND - RELATIONAL CHILD (ACTOR)
Show parents related
<ul>
<?php $movies = get_posts(...); //See Previous Slide
foreach( $movies as $post): // var must be called $post (IMPORTANT)
setup_postdata( $post ); ?>
<li>
<a href="<?php the_permalink(); ?>">
<?php the_title(); ?>
<?php the_post_thumbnail(); ?>
</a>
</li>
<?php wp_reset_postdata(); // IMPORTANT - reset the $post object
// so the rest of the page works correctly
endforeach;
?>
</ul>
http://www.advancedcustomfields.com/resources/tutorials/querying-relationship-fields/

28. WHY ACF?
Doesn't create MySQL table
User Interface
900,000+
WP Way
Documentation
Support
similar Plugins at http://comparewp.org/

29. GO ACF PRO V5

30. ACF PRO - EXTRAS
Local JSON
Fields in Comments, Widget, Users
Validation PHP + AJAX
acf_form()

31. BEYOND THIS TALK
WordPress Plugins: Advanced Custom Fields
Jared Novack: Advanced Advanced Custom Fields
Using Advanced Custom Fields within a WordPress Custom Theme
Elliot Condon talks - WP Melbourne:
Story of Advanced Custom Field - May 2013
ACF 5 Walk-through - May 2014

32. ADVANCED USE
Actions and Filters
Creating a new field type
Extensions
ACF to WP-API Plugin
Local JSON
Syncronized JSON
http://www.advancedcustomfields.com/resources/

33. QUESTIONS?

34. CHEERS MATE!
By /Leo Caseiro @leocaseiro