I'm seeing some strange behaviour when building 3 distinct rowsets in
a single page. It appears that each rowset and its map methods is
being called more times than there are records selected.
For example take the following code:
// ************************************************************
CREATE THUMBNAIL ROWSET
************************************************************ //
write to console('images found=`records in selection([Images])`')
$map := """
imageURL: `idp.utils.GetThumbnailURlForImage`;
imageRecnum: `record number([Images])`;
"""
C_longint($rowSet)
$imageRowSet := RowSet.newFromSelection(->[Images];$map) ` Don't
need callback
$noOfThumbnails := $imageRowSet->rowCount // used later and in
javascript next/previous image
// ***************************************************************
END CREATE ROWSET
*************************************************************** //
// ************************************************************
CREATE CATALOGUE ROWSET
************************************************************ //
query([Catalogue Entry];[Catalogue Entry]PressMark; = ; [Items]
Pressmark) // just get catalogue types
write to console('Cats found=`records in selection([Catalogue
Entry])`')
$mapII := """
catShortRef: `[Catalogue Entry]shortRef`;
catTransformedXML:
`idp.utils.GetTransformedCatXMLBlob(->[Catalogue Entry]
ShortRef;"select_cat_oo_header.xsl")`;
"""
C_longint($CatRowSet)
$CatRowSet := RowSet.newFromSelection(->[Catalogue Entry];
$mapII) ` Don't need callback
// ************************************************************** END
CATALOGUE ROWSET
************************************************************* //
// **************************************************************
CREATE BIBLIO ROWSET
************************************************************* //
query([BibRef];[BibRef]PressMark; = ; [Items]Pressmark) // get
bibRef records
write to console('bibs found=`records in selection
([Bibliography])`')
$mapIII := """
bibTransformedXML:
`idp.utils.GetTransformedBiblioXMLBlob`
"""
C_longint($bibRowSet)
$bibRowSet := RowSet.newFromSelection(->[Bibliography];$mapIII)
` Don't need callback
// ****************************************************************
END BIBLIO ROWSET
************************************************************** //
Each of the map's methods have a write to console line just to track
how many times they are called. What I see in the Active4D Console is
as follows:
images found=2
GetThumbnailURlForImage
Cats found=1
GetTransformedCatXMLBlobCalled
bibs found=3
GetTransformedBiblioXMLBlobCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
GetTransformedCatXMLBlobCalled
GetTransformedCatXMLBlobCalled
GetTransformedBiblioXMLBlobCalled
GetTransformedBiblioXMLBlobCalled
GetTransformedBiblioXMLBlobCalled
GetTransformedBiblioXMLBlobCalled
GetThumbnailURlForImageCalled
GetThumbnailURlForImageCalled
So despite only 2 image records being loaded, the image map method
gets called 13 times. Catalogue Entry gets called 3 times but for
only 1 record. Bibliography gets called 5 times for 3 records.
if I change rowset to build with Cached selection then the figures
change again but are still incorrect.
What is going on here? Can I not create multiple rowsets in a single
page or am I doing something wrong. Any advice gratefully received!
Regards, Michael.
A4D v4.0.0.0 rc3, 4D 2004.2, Mac OS X 10.4.2
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