Fix query syntax for PhotoAlbum children.

The nie:isLogicalPartOf(?x) syntax won't match against an id, so this
query would never return anything.  Instead return the contents
of the list rather than relying on a connection that may never
be established.

The same query will also return the contents of a Playlist, support
for which was mysteriously absent.

Reviewed-by: Christopher Adams <chris.adams@jollamobile.com>
(cherry picked from commit c473e738f884563e557e1d18fbb5fd515386325b)

Change-Id: Id448e06f8d183e064c8966b22d44414057a45f8a
Reviewed-by: Martin Jones <martin.jones@jollamobile.com>

3 files changed, 40 insertions, 8 deletions

diff --git a/src/gallery/tracker/qgallerytrackerchangenotifier.cpp b/src/gallery/tracker/qgallerytrackerchangenotifier.cpp
index f64f10d..d55af0c 100644
--- a/src/gallery/tracker/qgallerytrackerchangenotifier.cpp
+++ b/src/gallery/tracker/qgallerytrackerchangenotifier.cpp
@@ -74,7 +74,9 @@ void QGalleryTrackerChangeNotifier::graphUpdated(
     QString identifier(m_service);
     identifier.replace(QLatin1Char(':'), QLatin1Char('#'));
     if (className.endsWith(identifier)
-            || (m_service == QLatin1String("nmm:Artist") && className.endsWith(QLatin1String("nfo#Audio")))) {
+            || (m_service == QLatin1String("nmm:Artist") && className.endsWith("nfo#Audio"))
+            || (m_service == QLatin1String("nmm:Photo") && className.endsWith("nmm#ImageList"))
+            || (m_service == QLatin1String("nfo:Audio") && className.endsWith("nmm#Playlist"))) {
         emit itemsChanged(QGalleryTrackerSchema::serviceUpdateId(m_service));
     }
 }
diff --git a/src/gallery/tracker/qgallerytrackerschema.cpp b/src/gallery/tracker/qgallerytrackerschema.cpp
index bb76144..1a1117e 100644
--- a/src/gallery/tracker/qgallerytrackerschema.cpp
+++ b/src/gallery/tracker/qgallerytrackerschema.cpp
@@ -1242,12 +1242,16 @@ QDocumentGallery::Error QGalleryTrackerSchema::buildFilterQuery(
                 } else {
                     result = QDocumentGallery::ItemIdError;
                 }
-            } else if (itemTypes[index].itemType == QDocumentGallery::PhotoAlbum) {
-                if (qt_galleryItemTypeList[m_itemIndex].itemType == QDocumentGallery::Image) {
-                    filterStatement
-                            = QLatin1String("nie:isLogicalPartOf(?x)=<")
+            } else if (itemTypes[index].itemType == QDocumentGallery::PhotoAlbum
+                       || itemTypes[index].itemType == QDocumentGallery::Playlist) {
+                if ((qt_galleryItemTypeList[m_itemIndex].itemType == QDocumentGallery::Image
+                        && itemTypes[index].itemType == QDocumentGallery::PhotoAlbum)
+                        || (qt_galleryItemTypeList[m_itemIndex].itemType == QDocumentGallery::Audio
+                        && itemTypes[index].itemType == QDocumentGallery::Playlist)) {
+                    rootItemStatement = QLatin1String("{<")
                             + itemTypes[index].prefix.strip(rootItemId).toString()
-                            + QLatin1String(">");
+                            + QLatin1String("> nfo:hasMediaFileListEntry ?entry}");
+                    filterStatement = QLatin1String("nie:url(?x) = nfo:entryUrl(?entry)");
                 } else {
                     result = QDocumentGallery::ItemIdError;
                 }
diff --git a/tests/auto/qgallerytrackerschema_tracker/tst_qgallerytrackerschema.cpp b/tests/auto/qgallerytrackerschema_tracker/tst_qgallerytrackerschema.cpp
index 39f5a82..1c937ee 100644
--- a/tests/auto/qgallerytrackerschema_tracker/tst_qgallerytrackerschema.cpp
+++ b/tests/auto/qgallerytrackerschema_tracker/tst_qgallerytrackerschema.cpp
@@ -1561,7 +1561,8 @@ void tst_QGalleryTrackerSchema::queryResponseRootItem_data()
             <<  "SELECT ?x nie:url(?x) rdf:type(?x) "
                 "WHERE {"
                     "{?x rdf:type nmm:Photo}"
-                    "FILTER(nie:isLogicalPartOf(?x)=<photoAlbum:Camping>)"
+                    "{<photoAlbum:Camping> nfo:hasMediaFileListEntry ?entry}"
+                    "FILTER(nie:url(?x) = nfo:entryUrl(?entry))"
                 "} "
                 "GROUP BY ?x";
 
@@ -1572,7 +1573,32 @@ void tst_QGalleryTrackerSchema::queryResponseRootItem_data()
             <<  "SELECT ?x nie:url(?x) rdf:type(?x) "
                 "WHERE {"
                     "{?x rdf:type nmm:Photo}"
-                    "FILTER(nie:isLogicalPartOf(?x)=<photoAlbum:Camping>)"
+                    "{<photoAlbum:Camping> nfo:hasMediaFileListEntry ?entry}"
+                    "FILTER(nie:url(?x) = nfo:entryUrl(?entry))"
+                "} "
+                "GROUP BY ?x";
+
+    QTest::newRow("Playlist, All Image Descendants")
+            << QString::fromLatin1("Audio")
+            << QString::fromLatin1("playlist::playlist:mix")
+            << QGalleryQueryRequest::AllDescendants
+            <<  "SELECT ?x nie:url(?x) rdf:type(?x) "
+                "WHERE {"
+                    "{?x rdf:type nfo:Audio}"
+                    "{<playlist:mix> nfo:hasMediaFileListEntry ?entry}"
+                    "FILTER(nie:url(?x) = nfo:entryUrl(?entry))"
+                "} "
+                "GROUP BY ?x";
+
+    QTest::newRow("Playlist, Direct Audio Descendants")
+            << QString::fromLatin1("Audio")
+            << QString::fromLatin1("playlist::playlist:mix")
+            << QGalleryQueryRequest::DirectDescendants
+            <<  "SELECT ?x nie:url(?x) rdf:type(?x) "
+                "WHERE {"
+                    "{?x rdf:type nfo:Audio}"
+                    "{<playlist:mix> nfo:hasMediaFileListEntry ?entry}"
+                    "FILTER(nie:url(?x) = nfo:entryUrl(?entry))"
                 "} "
                 "GROUP BY ?x";