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Customizing the custom loop wordcamp 2012

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Welcome

         CUSTOMIZING THE CUSTOM LOOP




Code: http://github.com/jmarx/Wordcamp-NYC-2012

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Meet the guys
Alexander Sapountzis       Jeff Marx
•  Worked with             •  Worked with
   WordPress for 2           ...

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What is CBS Local?
Network of local sites for news and media,
 consolidating CBS' media content
• Radio
• TV
• News
• Orig...

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Customizing the custom loop wordcamp 2012

  1. 1. Welcome CUSTOMIZING THE CUSTOM LOOP Code: http://github.com/jmarx/Wordcamp-NYC-2012
  2. 2. Meet the guys Alexander Sapountzis Jeff Marx • Worked with • Worked with WordPress for 2 WordPress for 7 years Years • Worked a Gannet • Worked at Bloomberg Newspapers Businessweek • Snappy Dresser • He's the one with the beard
  3. 3. What is CBS Local? Network of local sites for news and media, consolidating CBS' media content • Radio • TV • News • Original Content www.cbslocal.com
  4. 4. We use WordPress!
  5. 5. After the five-minute install • • You get a cool theme • • Single Column Sidebar ...but it's boring We need to customize this so it's cool!
  6. 6. What comes next? • Featured Posts • Category Boxes • Cool stuff • Not boring!
  7. 7. How do we do this? (PAY ATTENTION, THIS WILL BE ON THE TEST)
  8. 8. The Global Query • Runs once on every page • Returns all relevant posts based on params o Home Page Query returns all posts o Category Page Query returns all for that category o Single Post Page Query returns a single, lonely post • Global query feeds default loop o default loop is hard coded on theme template files and contains post information from the global query • This comes built into WordPress
  9. 9. WordPress does all this for free ...what's the problem? Why bother with custom loops? Because you may need to: • Categorize content • use Custom Post Types • not have a boring site
  10. 10. Introduce The Loops • query_posts() • WP_Query • get_posts() Each is used in different ways, but you really only need one; WP_Query
  11. 11. query_posts() • Modifies the Global Query (that's bad) • Can cause unpredictable behavior • Will very likely be removed from WordPress (we hope soon) • Ignore tutorials that use this Remember: using query_posts() is like trying to hammer a nail in with your forehead; painful and messy
  12. 12. get_posts() • Safer but not ideal • Limited - Not as powerful or useful • Some template tags are not included This is like the little brother of WP_Query. It uses WP_Query behind the scenes, but hides quite a bit from you
  13. 13. WP_Query • Returns everything you need • Template tags will work • Plays nice with the Global Query • High in fiber query_posts() and get_posts() actually use this internally, but do other things that you don't want. Cut out the middle man!
  14. 14. Standard Loop Examples of the standard loop (before we make it all fancy) https://github.com/jmarx/Wordcamp-NYC- 2012/blob/master/twentyten_jeff/standard- loop.php
  15. 15. Custom Loop Examples  Homepage: https://github.com/jmarx/Wordcamp-NYC- 2012/blob/master/twentyten_jeff/loop-index.php  Sidebar: https://github.com/jmarx/Wordcamp-NYC- 2012/blob/master/twentyten_jeff/sidebar.php  Page https://github.com/jmarx/Wordcamp-NYC- 2012/blob/master/twentyten_jeff/page_dc.php
  16. 16. Performance Gotchas • Use caching and transients to improve performance • Limits load by minimizing database calls • Don't need too many loops on your site
  17. 17. Got Questions? @jeffreymarx @asapountzis Code Samples: https://github.com/jmarx/Wordcamp-NYC-2012

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