Andrus Adamchik <andrus <at> objectstyle.org> writes:
>
>
> On Jun 19, 2006, at 5:13 PM, Arturo Perez wrote:
>
> > Iterator i = articleCategory.getArticles().iterator();
> > while (i.hasNext()) {
> > ArticleCategoryLink acl = (ArticleCategoryLink)i.next();
> > ArticleMeta am = acl.getLatestArticle();
> > Article a = am.getArticle();
> > }
> >
> > The article is null but if I run an Expression I get what I expect:
> >
> > Expression exp =
> > ExpressionFactory.matchExp("activeArticle.categories.category",
> > category);
> > exp = exp.andExp(
> > Expression.fromString("latestArticle.article
> > activeArticle.article"));
>
> The last expression looks strange (I am surprised it compiles). What
> SQL is generated for the query?
>
> Andrus
>
>
It looks like the equal sign went away. It should be
"latestArticle.article = activeArticle.article"
That last expression is intended to limit results to the current articles.
Everything has backissues that should be ignored for the above. The SQL
is a 4-way join:
2006-06-19 12:25:21,249 [http-8316-Processor24] WARN
org.objectstyle.cayenne.access.QueryLogger- SELECT DISTINCT t0.ARTICLE_ID,
t0.ARTICLE_META_ID FROM ARTICLE t0, ARTICLE_META t1,
ARTICLE_CATEGORY_LINK t2, ARTICLE_META t3 WHERE t0.ARTICLE_ID =
t1.ACTIVE_ARTICLE_ID AND t1.ARTICLE_META_ID = t2.ARTICLE_META_ID AND
t0.ARTICLE_META_ID = t3.ARTICLE_META_ID AND ((t2.CATEGORY_ID = ?) AND
(t1.ACTIVE_ARTICLE_ID = t1.ACTIVE_ARTICLE_ID)) [bind: 1042]
2006-06-19 12:25:23,608 [http-8316-Processor24] WARN
org.objectstyle.cayenne.access.QueryLogger- === returned 91 rows. - took
2359 ms.
I suppose I should change the above to a matchInExp to cut down on the join
but I'm more concerned about the null. Although, looking at that SQL, the
last AND clause seems incorrect.
-arturo
This archive was generated by hypermail 2.0.0 : Mon Jun 19 2006 - 12:33:46 EDT