On first sight it looks pretty simple, but the more I think of a solution the 
more confused I become. Can someone help me build a qualifier for entity 
"Document" please:

Model:

Document <--->>DocumentText<<--->Text

DocumentText is NOT a simple many2many join but has its own attributes. When I 
create a Document I assign a pre-defiend set of Text objects to it. This means 
I create a number of DocumentText objects each pointing to one Text. These 
DocumentText objects are presented to the user as a list of "attributes" of a 
Document. The user then specifies a textual comment (for the field 
DocumentText.COMMENT_KEY) and a status value (for DocumentText.STATUS_KEY) on 
any one or more of these DocumentText objects. Upon save I update those 2 or 3 
or 4... DocumentText objects accordingly. For many of them the user does not 
enter anything (status is a known default, comment is empty). This all works.

Now comes the qualifier to retrieve Documents: The user sees a D2WQueryPage for 
the document properties with an embedded property level query component that 
presents the full list of possible DocumentText objects with their status and 
comment fields. A typical scenario could be: the user wants to enter a comment 
query for the second assigned text (that's Text "A") and/or picks a query value 
for the status of the 7th assigned text (this could be Text "B"). Upon 
executing the query the user expects to retrieve a list of Documents that 
fulfill all given criteria. In this example the user wants to see all Documents 
where the assignment to Text "A" has comment "x" AND the assignment to Text "B" 
has status "y".

I have this working for the case where the user only gives one search criterium 
but I cannot figure out how to construct the qualifier for the combination. An 
OR qualifier returns all Documents where any one DocumentText is satisfied 
whereas an AND qualifier returns nothing. I do understand those two cases. Mind 
you the top level entity must be Document, because that's what the user works 
with and queries against. In my property level query component I have 
set-Methods for the status and the comment values on the DocumentText loopvar. 
These methods retrieve the displayGroup qualifier and manipulate it. But not 
knowing how the final qualifier should look I am at a loss.

Thanks for any help
---markus---




Markus Ruggiero
[email protected]
Check out the new book about Project Wonder and WebObjects on 
http://learningthewonders.com/







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