[tracker/class-signal: 34/39] libtracker-data: Add support for tracker:subject() to SPARQL engine
- From: Philip Van Hoof <pvanhoof src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [tracker/class-signal: 34/39] libtracker-data: Add support for tracker:subject() to SPARQL engine
- Date: Wed, 25 Aug 2010 08:40:09 +0000 (UTC)
commit b06aa90541bd572f37f36ac76d46ffd9ed84fd79
Author: Philip Van Hoof <philip codeminded be>
Date: Tue Aug 24 14:46:50 2010 +0200
libtracker-data: Add support for tracker:subject() to SPARQL engine
src/libtracker-data/tracker-sparql-expression.vala | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
---
diff --git a/src/libtracker-data/tracker-sparql-expression.vala b/src/libtracker-data/tracker-sparql-expression.vala
index 064217b..5ab9663 100644
--- a/src/libtracker-data/tracker-sparql-expression.vala
+++ b/src/libtracker-data/tracker-sparql-expression.vala
@@ -567,6 +567,19 @@ class Tracker.Sparql.Expression : Object {
}
return PropertyType.INTEGER;
+ } else if (uri == TRACKER_NS + "subject") {
+
+ if (current () == SparqlTokenType.INTEGER) {
+ next ();
+ sql.append ("(SELECT Uri FROM Resource WHERE ID = ?)");
+ var binding = new LiteralBinding ();
+ binding.literal = get_last_string ();
+ query.bindings.append (binding);
+ } else {
+ throw get_error ("expected ID");
+ }
+
+ return PropertyType.STRING;
} else if (uri == TRACKER_NS + "cartesian-distance") {
sql.append ("SparqlCartesianDistance(");
translate_expression (sql);
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