Before I even start trying, I am wondering how difficult it is to re-fashion an elaborate SELECT query (MySQL) into a Zend_Db_Select object. There are things like IF() containing nested CASE statements. Are there limits, for example, on how complicated a Zend_Db_Expr() can get?
I guess the other option is to create a view. The point is to have all the basic heavy lifting cleanly encapsulated and add more WHERE clauses programmatically.
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David Mintz
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