Fetching several objects at a time

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Leif Arne Storset	Friday 02 June 2006 7:45:13 am Is it possible to fetch several objects in one operation? I have a list of object IDs, and need to fetch all of the corresponding objects. I'm thinking that iterating through the list, fetching each one separately, is woefully inefficient, with one SQL query for each iteration. It would be theoretically possible (in the general case) to fetch multiple objects in one query using the OR operator in SQL, but I'm not sure whether eZ publish's structure allows this, not to mention its template API. And before you ask, no, I am not trying to fetch children of multiple nodes (fetch ( 'content', 'list' )) - I want the objects themselves, not their node children. :) Leif Arne Storset

Author

Message

Leif Arne Storset

Friday 02 June 2006 7:45:13 am

Is it possible to fetch several objects in one operation?

I have a list of object IDs, and need to fetch all of the corresponding objects. I'm thinking that iterating through the list, fetching each one separately, is woefully inefficient, with one SQL query for each iteration.

It would be theoretically possible (in the general case) to fetch multiple objects in one query using the OR operator in SQL, but I'm not sure whether eZ publish's structure allows this, not to mention its template API.

And before you ask, no, I am not trying to fetch children of multiple nodes (fetch ( 'content', 'list' )) - I want the objects themselves, not their node children. :)

Leif Arne Storset

eZ debug

Timing:	Jan 18 2025 02:03:09
Script start
Timing:	Jan 18 2025 02:03:09
Module start 'layout'
Timing:	Jan 18 2025 02:03:09
Module start 'content'
Timing:	Jan 18 2025 02:03:09
Module end 'content'
Timing:	Jan 18 2025 02:03:09
Script end

Main resources:

Total runtime	0.0219 sec
Peak memory usage	4,096.0000 KB
Database Queries	3

Timing points:

Checkpoint	Start (sec)	Duration (sec)	Memory at start (KB)	Memory used (KB)
Script start	0.0000	0.0096	589.1328	152.6250
Module start 'layout'	0.0097	0.0037	741.7578	39.4453
Module start 'content'	0.0133	0.0064	781.2031	85.2422
Module end 'content'	0.0197	0.0021	866.4453	30.3047
Script end	0.0218		896.7500

Time accumulators:

Accumulator	Duration (sec)	Duration (%)	Count	Average (sec)
Ini load
Load cache	0.0033	15.1654	14	0.0002
Check MTime	0.0015	6.8587	14	0.0001
Mysql Total
Database connection	0.0011	4.8850	1	0.0011
Mysqli_queries	0.0037	16.7334	3	0.0012
Looping result	0.0000	0.0774	1	0.0000
Template Total	0.0017	8.0	1	0.0017
Template load	0.0011	4.9395	1	0.0011
Template processing	0.0007	3.0226	1	0.0007
Override
Cache load	0.0007	3.2647	1	0.0007
General
dbfile	0.0013	5.8500	8	0.0002
String conversion	0.0002	0.7229	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	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