Using kernel classes in custom extension/datatype

Next topic

Author	Message
Emil Lazaro	Thursday 18 October 2007 10:16:09 am I am trying to create a new datatype, where I would need some simple price validation. I am new to eZPublish, so I am not sure whether I am allowed to use another datatype in my datatype, or even call some of the basic classes. I noticed while looking at the existing datatypes that ezprice for example is using the eZSimplePrice class, just not sure if this is a good practice, or even if it's possible. The alternative is to write my own function in the new class, but then this will leave it out of synch with the rest of the site. Any advice or input would be would be useful - thanks
Damien Pobel	Thursday 18 October 2007 10:51:55 am Hi Emil, You can use classes, functions from eZ Publish kernel in extensions and for most types of extension you have to do that. For example, for a custom datatype, you have to define a class which should look like : <?php include_once( "kernel/classes/ezdatatype.php" ); class yourDatatype extends eZDatatype { } ?> Remember to always include files from the root of your eZ Publish installation. Damien Planet eZ Publish.fr : http://www.planet-ezpublish.fr Certification : http://auth.ez.no/certification/verify/372448 Publications about eZ Publish : http://pwet.fr/tags/keywords/weblog/ez_publish
Emil Lazaro	Thursday 18 October 2007 12:02:38 pm Thanks, does that apply to the classes of the core extensions and datatypes, i.e. instead of using \kernel\shop\classes/ezsimpleprice.php, can I use the class in /kernel/classes/datatypes/ezprice/ezpricetype.php ?

Author

Message

Thursday 18 October 2007 10:16:09 am

I am trying to create a new datatype, where I would need some simple price validation. I am new to eZPublish, so I am not sure whether I am allowed to use another datatype in my datatype, or even call some of the basic classes. I noticed while looking at the existing datatypes that ezprice for example is using the eZSimplePrice class, just not sure if this is a good practice, or even if it's possible. The alternative is to write my own function in the new class, but then this will leave it out of synch with the rest of the site.
Any advice or input would be would be useful - thanks

Damien Pobel

Thursday 18 October 2007 10:51:55 am

Hi Emil,

You can use classes, functions from eZ Publish kernel in extensions and for most types of extension you have to do that. For example, for a custom datatype, you have to define a class which should look like :

<?php
include_once( "kernel/classes/ezdatatype.php" );

class yourDatatype extends eZDatatype
{

}
?>

Remember to always include files from the root of your eZ Publish installation.

Damien
Planet eZ Publish.fr : http://www.planet-ezpublish.fr
Certification : http://auth.ez.no/certification/verify/372448
Publications about eZ Publish : http://pwet.fr/tags/keywords/weblog/ez_publish

Emil Lazaro

Thursday 18 October 2007 12:02:38 pm

Thanks,

does that apply to the classes of the core extensions and datatypes, i.e. instead of using \kernel\shop\classes/ezsimpleprice.php, can I use the class in /kernel/classes/datatypes/ezprice/ezpricetype.php ?

eZ debug

Timing:	Jan 18 2025 22:20:09
Script start
Timing:	Jan 18 2025 22:20:09
Module start 'layout'
Timing:	Jan 18 2025 22:20:09
Module start 'content'
Timing:	Jan 18 2025 22:20:10
Module end 'content'
Timing:	Jan 18 2025 22:20:10
Script end

Main resources:

Total runtime	0.7965 sec
Peak memory usage	4,096.0000 KB
Database Queries	57

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0057	588.0469	152.6406
Module start 'layout'	0.0057	0.0026	740.6875	39.4922
Module start 'content'	0.0083	0.7867	780.1797	533.3828
Module end 'content'	0.7951	0.0014	1,313.5625	12.1250
Script end	0.7964		1,325.6875

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0029	0.3654	16	0.0002
Check MTime	0.0013	0.1592	16	0.0001
Mysql Total
Database connection	0.0011	0.1371	1	0.0011
Mysqli_queries	0.7549	94.7827	57	0.0132
Looping result	0.0005	0.0667	55	0.0000
Template Total	0.7661	96.2	2	0.3830
Template load	0.0018	0.2246	2	0.0009
Template processing	0.7643	95.9587	2	0.3821
Template load and register function	0.0003	0.0319	1	0.0003
states
state_id_array	0.0011	0.1343	1	0.0011
state_identifier_array	0.0009	0.1176	2	0.0005
Override
Cache load	0.0015	0.1846	14	0.0001
Sytem overhead
Fetch class attribute can translate value	0.0007	0.0940	2	0.0004
Fetch class attribute name	0.0014	0.1768	4	0.0004
XML
Image XML parsing	0.0006	0.0751	2	0.0003
class_abstraction
Instantiating content class attribute	0.0000	0.0012	4	0.0000
General
dbfile	0.0008	0.0950	16	0.0000
String conversion	0.0000	0.0011	4	0.0000
Note: percentages do not add up to 100% because some accumulators overlap

Templates used to render the page:

Usage	Requested template	Template	Template loaded
1	node/view/full.tpl	full/forum_topic.tpl	extension/sevenx/design/simple/override/templates/full/forum_topic.tpl
3	content/datatype/view/ezxmltext.tpl	<No override>	extension/community_design/design/suncana/templates/content/datatype/view/ezxmltext.tpl
1	content/datatype/view/ezxmltags/line.tpl	<No override>	design/standard/templates/content/datatype/view/ezxmltags/line.tpl
4	content/datatype/view/ezxmltags/paragraph.tpl	<No override>	extension/ezwebin/design/ezwebin/templates/content/datatype/view/ezxmltags/paragraph.tpl
1	content/datatype/view/ezimage.tpl	<No override>	extension/sevenx/design/simple/templates/content/datatype/view/ezimage.tpl
1	content/datatype/view/ezxmltags/literal.tpl	<No override>	extension/community/design/standard/templates/content/datatype/view/ezxmltags/literal.tpl
1	print_pagelayout.tpl	<No override>	extension/community/design/community/templates/print_pagelayout.tpl
Number of times templates used: 12 Number of unique templates used: 7

Time used to render debug report: 0.0001 secs