Grails using dynamic finders with 3x+ logical arguments

Question

I sucessfully managed to search in the database using this dynamic finder from Hibernate:

def temp = User.findByNameAndStreet(\"name\", \"street\")
         


        

Answer 1

The Grails dynamic finders don't support more than two predicates. This is because it's not clear whether

User.findByNameAndAgeOrGender('foo', 12, 'm')

means this:

(name == 'foo' && age == 12) || gender == 'm'

or this:

name == 'foo' && (age == 12 || gender == 'm')

Admittedly if the predicates are always combined with And or Or.

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Update: since Grails 1.4 you can have an unlimited number of predicates if they're all combined with either And or Or

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Instead, you can use either findWhere or findAllWhere (depending on whether you want just the first result or all results). Both of these support an unlimited number of predicates which I assume are combined with And, for example:

User.findAllWhere(name: "foo", age: 12, gender: 'm')