Previously on the blog
RSS feed
  1. Using POG with Flex
  2. Optimizing your web application
  3. Regenerating large objects
  4. PHP4 or PHP5
  5. New and Improved
  6. Evolution of a cube
  7. POG Museum
  8. POG 3.0 alpha
  9. Initial Performance results Part 2
  10. Initial performance results
  11. Proposal: POG 3.0 object model
  12. Suggest a feature
  13. A new year, A new POG release
  14. Many-Many relations
  15. POG 2.5 Released
  16. POG 2.5 beta
  17. Automatic table alignment
  18. New version: 2.1.2 released
  19. RSS should work well now
  20. RSS feed glitches
  21. What's new in 2.1.0
  22. PHP Objects 2.1.0 (preview)
  23. PHP Object relations FAQ
  24. PHP Object Relations
  25. Searching base64 encoded text
  26. How to debug POG-generated objects
  27. POG UI Tips
  28. Featuring Of Interest links
  29. PHP CRUD
  30. POG 2.0.1: A better code generator
  31. A look at the POG SOAP API
  32. POG 2.0.0 released
  33. Coming soon: Generate parent-child objects
  34. Generated abstraction v/s dynamic abstraction
  35. Zend Framework preview
  36. Coming soon: Generate Objects through SOAP
  37. Easily save images and files to a database
  38. PHP, Paypal & POG
  39. Five advanced Code Generator tips
  40. PHP Pagination using generated objects
  41. PHP Code Generator benchmarks
  42. Representing database objects using an AJAX Tree interface
  43. Using SETUP in a production environment
  44. Description of the generated object package
  45. Introducing PHP Object Generator version 1.6
  46. Using AJAX and PHP Object Generator
  47. When to use Object->SaveNew()
  48. Generating PHP objects in 2006
  49. Happy Holidays
  50. A short video of the POG Setup process
  51. A sneak peek at POG 1.6
  52. POG Tip: Field limits
  53. Previous versions.
  54. Searching the blog and tutorials sections
  55. Generating code with "Other" SQL data types
  56. Five general POG tips
  57. POG source code locations
  58. Microsoft SQL 2005 Express Edition
  59. Impatiently awaiting PHP 5.1 and PDO
  60. Php Object Generator goes open source
  61. POG generates PDO compatible code
  62. Oracle to offer free database
  63. POG Google group
  64. Database Wrappers and POG
  65. Revisions
  66. The generator blog
  67. An explanation of the 'Escape' function.
  68. Mirror, mirror
  69. Using POG to solve real world problems
  70. A php object-relational database tool
  71. A simple and flexible Object Oriented approach to PHP


Want more Php Object Generator?
Back to the Code Generator
The POG Google group
The POG tutorials/code samples
The POG mirror site




PHP Pagination using generated objects

written 4117 days ago

PHP pagination is often required when you need to create reporting views of your database tables. For example, let’s say you need to create a list of all guests attending a particular event. If you have a ‘Guest’ object, calling

$guest = new Guest();
$guestList = $guest -> GetList(array(array(“guestId”, “>”, 0)));

will return the complete guest list.

However, quite often, the number of results that match the conditions passed to GetList() is quite large, and you need to split your result set across many html pages. This is usually referred to as PHP paging or pagination.

If you were writing your own SQL queries to access your database, and wanted to limit your query result to 50, the query would look something like this:

select * from table guest where guestid > 0 Limit 0, 50.

where 0 is the offset and 50 is the limit. In the query above, mysql would return row 0 to 50 of the result set.

You can use the same concept and syntax with objects generated by POG. To get the first 50 guests from your guest list using the guest object, all you need to do is call

$guest = new Guest();
$guestList = $guest -> GetList(array(array(“guestId”, “>”, 0)), ‘’, true, “0, 50”);

In the above code, instead of passing a simple value to the $limit variable, we passed “0, 50” which allows us to specify the limit and offset of the objects we want. Note that passing “0,50” is equivalent to passing “50”.

So, if we were building a report with 50 guests per html page, the above query would give us the values for the first page. What about the second page? To obtain result set 50-100, we simply call

$guest = new Guest();
$guestList = $guest -> GetList(array(array(“guestId”, “>”, 0)), ‘’, true, “50, 50”);

This tells POG to return 50 results starting from row 50.

Therefore, the pattern can be summarized as follows:

Page 1 – $limit = “0, 50”
Page 2 – $limit = “50, 50”
Page 3 – $limit = “100, 50”
And so on.

As you can see, POG CRUD methods are simple, yet powerful enough to handle PHP pagination.

For a detailed documentation of the GetList CRUD method, please refer to the POG tutorials


How can I know the count of objects in database with pog? (pagination is clear)


elffikk    Oct 2, 09:58 AM    #

  Textile Help
About Php Object Generator
This is a weblog about the Php Object Generator (POG) project, OO PHP, databases and Php code generators in general.

Php Object Generator, (POG) is an open source PHP code generator which automatically generates clean & tested Object Oriented code for your PHP4/PHP5 application.

Subscribe to our RSS feed

Feedback, Feature Requests, Bugs to:
The POG Google group

Send us a Hello through email