borinquenkid opened a new issue, #16811:
URL: https://github.com/apache/grails-core/issues/16811
Split from audit #16804 (finding F13).
### Problem Description
In Hibernate 5, where-query functions such as `Person.where {
upper(lastName) == 'SIMPSON' }` worked as documented in the GORM reference
manual.
In `grails-data-hibernate7`, `PredicateGenerator.handleCriterion()` does not
handle `FunctionCallingCriterion`, throwing `UnsupportedOperationException`.
### Expected Behavior
`PredicateGenerator` should support `FunctionCallingCriterion` by mapping
function names to JPA Criteria expressions:
- `lower` -> `criteriaBuilder.lower()`
- `upper` -> `criteriaBuilder.upper()`
- `trim` -> `criteriaBuilder.trim()`
- `length` -> `criteriaBuilder.length()`
- Other functions -> `criteriaBuilder.function(name, Integer.class, expr)`
And evaluate the resulting expression against the wrapped
`PropertyCriterion` (`equal`, `like`, `ilike`, `gt`, `ge`, `lt`, `le`, `in`).
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