Re: [REPLACE] inside [FOUNDITEMS]
This WebDNA talk-list message is from 1998
It keeps the original formatting.
numero = 19175
interpreted = N
texte = It's all because you're using the devil's SKU :-)Seriously, as far as I know, that's the way it's always worked. A [search] generates it's own internal table of found items, idexed by their position in the database (row #). The [founditems] context loops through that internal table, and pulls the values from the specified row. Niether [search] nor [founditems] have any memory (term used loosely) of the state of these records at the time of the search.Since all changes are RAM-based and _instantanious_, the behaivior that you described is normal and expected.As has been discussed several times on this list, using [delete] inside [founditems] will really screw things up. Don't even think about going there.-DaveAt 3:34 PM 7/29/98, Michael Winston wrote: >2.1.6 through 3.0b4, MAC PI > >I discovered something today and I'm not sure if it's a bug or a feature: > >Let's say I have a record with SKU=666 and INV=30, > >[SEARCH db=my.db&eqSKUdatarq=666] >[FOUNDITEMS] >[INV]
>[REPLACE db=my.db&eqSKUdatarq=666]INV=100[/REPLACE] >[INV] >[/FOUNDITEMS] >[/SEARCH] > >returns: >30 >100 > >I expected: >30 >30 > >I never expected that the [REPLACE] would change my [FOUNDITEMS] results. >I thought it would replace the value in the database but leave the returned >values of my [SEARCH] untouched. This could (and has) caused quite a few >logic errors in some scripts. > >Has this been going on for long? > >Michael > >Michael Winston *By e-mail!: michaelw@dhorse.com >Internet Coordinator *By web!: http://www.dhorse.com/ >Dark Horse Comics, Inc. *By fax!: 503/654/9440 o--------------- Dave MacLeay --+ o----------- Digital Frontier --+ o--- dave@digitalfrontier.com --+
Associated Messages, from the most recent to the oldest:
It's all because you're using the devil's SKU :-)Seriously, as far as I know, that's the way it's always worked. A
[search] generates it's own internal table of found items, idexed by their position in the database (row #). The
[founditems] context loops through that internal table, and pulls the values from the specified row. Niether
[search] nor
[founditems] have any memory (term used loosely) of the state of these records at the time of the search.Since all changes are RAM-based and _instantanious_, the behaivior that you described is normal and expected.As has been discussed several times on this list, using
[delete] inside
[founditems] will really screw things up. Don't even think about going there.-DaveAt 3:34 PM 7/29/98, Michael Winston wrote: >2.1.6 through 3.0b4, MAC PI > >I discovered something today and I'm not sure if it's a bug or a feature: > >Let's say I have a record with SKU=666 and INV=30, > >[SEARCH db=my.db&eqSKUdatarq=666] >
[founditems] >[INV]
>[REPLACE db=my.db&eqSKUdatarq=666]INV=100[/REPLACE] >[INV] >[/FOUNDITEMS] >[/SEARCH] > >returns: >30 >100 > >I expected: >30 >30 > >I never expected that the [replace] would change my [founditems] results. >I thought it would replace the value in the database but leave the returned >values of my [search] untouched. This could (and has) caused quite a few >logic errors in some scripts. > >Has this been going on for long? > >Michael > >Michael Winston *By e-mail!: michaelw@dhorse.com >Internet Coordinator *By web!: http://www.dhorse.com/ >Dark Horse Comics, Inc. *By fax!: 503/654/9440 o--------------- Dave MacLeay --+ o----------- Digital Frontier --+ o--- dave@digitalfrontier.com --+
Dave MacLeay
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