[grilo-plugins/wip/carlosg/tracker-last-modification-date] tracker3: Coalesce nie:contentLastModified and nfo:fileLastModified

[Carlos Garnacho <carlosg src gnome org>]

commit e41c444073fc24f1deb073d80e9513e7448388bf
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Aug 27 12:40:08 2020 +0200

    tracker3: Coalesce nie:contentLastModified and nfo:fileLastModified
    
    The former refers to the last modification date as coming from the file
    metadata, the latter comes from struct stat's mtime. Coalesce both when
    querying, with a preference for the metadata source.
    
    Fixes: https://gitlab.gnome.org/GNOME/grilo-plugins/-/issues/74

 src/tracker3/grl-tracker-utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/tracker3/grl-tracker-utils.c b/src/tracker3/grl-tracker-utils.c
index 9680da9c..13f313f9 100644
--- a/src/tracker3/grl-tracker-utils.c
+++ b/src/tracker3/grl-tracker-utils.c
@@ -255,7 +255,7 @@ grl_tracker_setup_key_mappings (void)
 
   insert_key_mapping_with_setter (GRL_METADATA_KEY_MODIFICATION_DATE,
                                   "lastModified",
-                                  "nie:contentLastModified(?urn)",
+                                  "COALESCE(nie:contentLastModified(?urn), (select ?lm { ?urn 
nie:isStoredAs/nfo:fileLastModified ?lm }))",
                                   GRL_TYPE_FILTER_ALL,
                                   set_date);