From 1dfe7302550cbbbaeee821a83397cb0896f59beb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Iv=C3=A1n=20L=C3=B3pez?= <lopez.ivan@gmail.com>
Date: Fri, 6 Sep 2013 20:07:55 +0200
Subject: [PATCH] GRAILS-10335 - Override Grails mappings for collections when
 property is mapped with a custom Hibernate UserType

---
 ...rTypeOverridesGrailsMapMappingTests.groovy | 38 ++++++++++++
 .../orm/hibernate/cfg/MapFakeUserType.groovy  | 60 +++++++++++++++++++
 2 files changed, 98 insertions(+)
 create mode 100644 test/unit/org/codehaus/groovy/grails/orm/hibernate/CustomUserTypeOverridesGrailsMapMappingTests.groovy
 create mode 100644 test/unit/org/codehaus/groovy/grails/orm/hibernate/cfg/MapFakeUserType.groovy

diff --git a/test/unit/org/codehaus/groovy/grails/orm/hibernate/CustomUserTypeOverridesGrailsMapMappingTests.groovy b/test/unit/org/codehaus/groovy/grails/orm/hibernate/CustomUserTypeOverridesGrailsMapMappingTests.groovy
new file mode 100644
index 0000000..60cb510
--- /dev/null
+++ b/test/unit/org/codehaus/groovy/grails/orm/hibernate/CustomUserTypeOverridesGrailsMapMappingTests.groovy
@@ -0,0 +1,38 @@
+package org.codehaus.groovy.grails.orm.hibernate
+
+import grails.persistence.Entity
+
+import org.codehaus.groovy.grails.orm.hibernate.cfg.MapFakeUserType
+
+class CustomUserTypeOverridesGrailsMapMappingTests extends AbstractGrailsHibernateTests {
+
+    void testUserTypeOverridesGrailsMapMappingTests() {
+        def d = new DomainUserTypeMappings()
+
+        d.myMap = [foo:"bar"]
+
+        assert d.save(flush:true) != null
+
+        // the map should not be mapped onto a join table but instead a single column
+        session.connection().prepareStatement("select my_map from domain_user_type_mappings").execute()
+
+        session.clear()
+
+        d = DomainUserTypeMappings.get(d.id)
+
+        assert d != null
+    }
+
+    @Override protected getDomainClasses() {
+        [DomainUserTypeMappings]
+    }
+}
+
+@Entity
+class DomainUserTypeMappings {
+    Map<String, String> myMap
+
+    static mapping = {
+        myMap type:MapFakeUserType
+    }
+}
\ No newline at end of file
diff --git a/test/unit/org/codehaus/groovy/grails/orm/hibernate/cfg/MapFakeUserType.groovy b/test/unit/org/codehaus/groovy/grails/orm/hibernate/cfg/MapFakeUserType.groovy
new file mode 100644
index 0000000..5475cf9
--- /dev/null
+++ b/test/unit/org/codehaus/groovy/grails/orm/hibernate/cfg/MapFakeUserType.groovy
@@ -0,0 +1,60 @@
+package org.codehaus.groovy.grails.orm.hibernate.cfg
+
+import java.io.Serializable
+import java.sql.PreparedStatement
+import java.sql.ResultSet
+import java.sql.SQLException
+import java.sql.Types
+import java.util.HashMap
+import java.util.Map
+
+import org.hibernate.HibernateException
+import org.hibernate.usertype.UserType
+
+public class MapFakeUserType implements UserType {
+
+    int[] sqlTypes() { Types.VARCHAR }
+    Class returnedClass() { MapFakeUserType }
+
+    public Object nullSafeGet(ResultSet rs, String[] names, owner) throws SQLException {
+        String name = rs.getString(names[0])
+        rs.wasNull() ? null : new MapFakeUserType(name: name)
+    }
+
+    public void nullSafeSet(PreparedStatement ps, value, int index) throws SQLException {
+        if (value == null) {
+            ps.setNull(index, Types.VARCHAR)
+        }
+        else {
+            ps.setString(index, value.name)
+        }
+    }
+
+    public boolean equals(Object x, Object y) throws HibernateException {
+        return x == y;
+    }
+
+    public int hashCode(Object x) throws HibernateException {
+        return x.hashCode();
+    }
+
+    public Object deepCopy(Object value) throws HibernateException {
+        return value;
+    }
+
+    public boolean isMutable() {
+        return false;
+    }
+
+    public Serializable disassemble(Object value) throws HibernateException {
+        return (Serializable)value;
+    }
+
+    public Object assemble(Serializable cached, Object owner) throws HibernateException {
+        return cached;
+    }
+
+    public Object replace(Object original, Object target, Object owner) throws HibernateException {
+        return original;
+    }
+}
\ No newline at end of file