If I had to guess, I bet it's because none of the EOUtilities methods
do a fetchSpec.setIsDeep(true) and thus don't fetch on subclasses.
If you steal the code from that method and add the setIsDeep, maybe
that will work?
EOQualifier qualifier = EOQualifier.qualifierWithQualifierFormat
(format, args);
EOFetchSpecification fetchSpec = new EOFetchSpecification
(entityName, qualifier, null);
fetchSpec.setIsDeep(true);
NSArray results = ec.objectsWithFetchSpecification(fetchSpec);
On Feb 6, 2007, at 10:54 AM, Ken Anderson wrote:
Everyone,
I swear this has worked in the past - if I'm mistaken, please
remind me!
I have an entity (MemberRuleField) with a relationship to an
abstract entity (MemberRule). MemberRule (and it's sub-entities)
has a relationship called MemberCompanyRole (this defines what
company the rule is for). The inheritance structure is implemented
using horizontal inheritance (separate table for each concrete sub-
entity).
I would like to perform this query:
eos = EOUtilities.objectsWithQualifierFormat(ec, "MemberRuleField",
"memberRule.memberCompanyRole = %@", new NSArray(new Object[]
{memberCompanyRole}));
What I think this should do is create a query for every concrete
sub-entity. Instead, I get this:
SELECT t0.field_values, t0.long_field_values, t0.member_rule_oid,
t0.oid, t0.op, t0.rule_field_oid, t0.trans_id FROM
member_rule_field t0, null T1 WHERE T1.member_company_role_oid = ?
AND t0.member_rule_oid = T1.oid" withBindings: 1:11
(memberCompanyRoleOid)>
I only get one query, and the table name is NULL for the related
table. That unfortunately makes sense, because the memberRule
relationship points to the MemberRule entity, which is abstract and
does not have a table (yes I know, single table inheritance would
solve this problem...and vertical would probably solve it too).
Any thoughts? I would really prefer to use horizontal here...
Ken
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