how to know if a variable is set?

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Author	Message
marc marc	Thursday 16 October 2008 8:21:28 am Hello everybody, i would like to show a textfield and its title in an article only if this field is set, that means if theres is no text in the textfield, the title won't appear. i know in PHP there is the 'isset' condition that return true if the variable is not empty, but i didnt find anything in ezpublish that is similar. thank you for your help.
justin kazadi	Thursday 16 October 2008 8:40:51 am Hi, if you want to know if an attribute named title for exemple is set you can use this: {if $node.data_map.title.has_content} {do same thing} {/if} The theory is when we know everything and nothing works. The practice is when everything works and nobody knows why. If the practice and theory are met, nothing works and we do not know why. Albert Einstein
Piotrek Karaś	Thursday 16 October 2008 10:31:35 am Justin, If you explicitly refer in a conditional statement to an inexistent variable, a warning or a notice will be thrown. This is exactly why isset-like functions exist, and eZ has those as well: http://ez.no/doc/ez_publish/technical_manual/4_0/reference/template_operators/variable_and_type_handling/is_set http://ez.no/doc/ez_publish/technical_manual/4_0/reference/template_operators/variable_and_type_handling http://ez.no/doc/ez_publish/technical_manual/4_0/reference/template_operators/data_and_information_extraction/ezhttp_hasvariable http://ez.no/doc/ez_publish/technical_manual/4_0/reference/template_operators/data_and_information_extraction/ezini_hasvariable ... Hope this helps, Cheers, Piotrek -- Company: mediaSELF Sp. z o.o., http://www.mediaself.pl eZ references: http://ez.no/partners/worldwide_partners/mediaself eZ certified developer: http://ez.no/certification/verify/272585 eZ blog: http://ez.ryba.eu
marc marc	Friday 17 October 2008 1:27:40 am thank you for your help, i try right now

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eZ debug

Timing:	Jan 18 2025 11:02:11
Script start
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Module start 'layout'
Timing:	Jan 18 2025 11:02:11
Module start 'content'
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Module end 'content'
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Script end

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Peak memory usage	2,048.0000 KB
Database Queries	3

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0056	589.3516	152.6250
Module start 'layout'	0.0056	0.0024	741.9766	39.4453
Module start 'content'	0.0080	0.0042	781.4219	93.4609
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Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0025	17.6854	14	0.0002
Check MTime	0.0011	7.5863	14	0.0001
Mysql Total
Database connection	0.0014	9.6203	1	0.0014
Mysqli_queries	0.0019	13.3235	3	0.0006
Looping result	0.0000	0.0798	1	0.0000
Template Total	0.0015	10.5	1	0.0015
Template load	0.0007	5.2194	1	0.0007
Template processing	0.0007	5.2058	1	0.0007
Override
Cache load	0.0005	3.7812	1	0.0005
General
dbfile	0.0003	1.9271	8	0.0000
String conversion	0.0000	0.0696	4	0.0000
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Templates used to render the page:

Usage	Requested template	Template	Template loaded	Edit	Override
1	print_pagelayout.tpl	<No override>	extension/community/design/community/templates/print_pagelayout.tpl
Number of times templates used: 1 Number of unique templates used: 1

Time used to render debug report: 0.0001 secs