A Quick and Friendly Introduction to eZPersistentObject

Thursday 18 November 2010 9:11:37 am - 8 replies

Introduction

In this tutorial we will learn how to use CRUD features by extending eZPersistentObject class, so it will be possible to Create, Read, Update, and Delete objects in the database in a straightforward way, without writing SQL queries.

8 replies

Author	Message
Peter Keung	Thursday 18 November 2010 4:33:28 pm Great (and friendly) article, Thiago. http://www.mugo.ca Mugo Web, eZ Partner in Vancouver, Canada
Thiago Campos Viana	Thursday 18 November 2010 5:34:40 pm " Great (and friendly) article, Thiago. " Thanks! It could not be the best tutorial, but I think it has a good title! eZ Publish Certified Developer: http://auth.ez.no/certification/verify/376924 Twitter: http://twitter.com/tcv_br
Luca Realdi	Friday 19 November 2010 12:51:16 am Great tutorial! Thanks!
Richard Bayet	Sunday 21 November 2010 3:09:37 am Shouldn't the sample code include basic error handling (testing the result of eZPersistentObject::fetchObject against "null" before any further method call), given the intended audience ? ;)
Thiago Campos Viana	Sunday 21 November 2010 11:29:13 am " Shouldn't the sample code include basic error handling (testing the result of eZPersistentObject::fetchObject against "null" before any further method call), given the intended audience ? ;) " Yeah, we can do a simple: if($simpleObj!=null){ ... } eZ Publish Certified Developer: http://auth.ez.no/certification/verify/376924 Twitter: http://twitter.com/tcv_br
Romeo Antony	Monday 22 November 2010 1:47:26 pm Great work. Thanks for a lot for such a masterpiece.
Jérôme Vieilledent	Thursday 25 November 2010 2:09:32 am " Shouldn't the sample code include basic error handling (testing the result of eZPersistentObject::fetchObject against "null" before any further method call), given the intended audience ? ;) " Instead of Thiago reply, I'd rather something like : if( !$obj instanceof TutorialFriendshipObject ) { // Handle and log the error }
Geoff Bentley	Sunday 19 June 2011 3:53:23 am Great explanation - very thorough references - thanks!!

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eZ debug

Timing:	Jan 17 2025 21:16:04
Script start
Timing:	Jan 17 2025 21:16:04
Module start 'layout'
Timing:	Jan 17 2025 21:16:04
Module start 'content'
Timing:	Jan 17 2025 21:16:04
Module end 'content'
Timing:	Jan 17 2025 21:16:04
Script end

Main resources:

Total runtime	0.1663 sec
Peak memory usage	4,096.0000 KB
Database Queries	95

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0042	597.6094	152.1563
Module start 'layout'	0.0042	0.0025	749.7656	39.5391
Module start 'content'	0.0067	0.1582	789.3047	1,025.7813
Module end 'content'	0.1649	0.0013	1,815.0859	26.4766
Script end	0.1662		1,841.5625

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0029	1.7566	16	0.0002
Check MTime	0.0012	0.6940	16	0.0001
Mysql Total
Database connection	0.0005	0.2798	1	0.0005
Mysqli_queries	0.0913	54.9012	95	0.0010
Looping result	0.0007	0.4508	93	0.0000
Template Total	0.1447	87.0	2	0.0723
Template load	0.0019	1.1716	2	0.0010
Template processing	0.1427	85.8303	2	0.0714
Template load and register function	0.0001	0.0759	1	0.0001
states
state_id_array	0.0009	0.5713	2	0.0005
state_identifier_array	0.0008	0.5028	3	0.0003
Override
Cache load	0.0018	1.0643	45	0.0000
Sytem overhead
Fetch class attribute name	0.0011	0.6404	15	0.0001
Fetch class attribute can translate value	0.0006	0.3500	7	0.0001
class_abstraction
Instantiating content class attribute	0.0000	0.0159	16	0.0000
XML
Image XML parsing	0.0030	1.7834	7	0.0004
General
dbfile	0.0013	0.7877	48	0.0000
String conversion	0.0000	0.0052	4	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

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Usage	Requested template	Template	Template loaded
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Number of times templates used: 37 Number of unique templates used: 9

Time used to render debug report: 0.0001 secs