persist_data: add get_by_pattern method to API

- one can use get_by_pattern to get a list of values associated
with keys that match the specified pattern

Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/lib/bb/persist_data.py b/lib/bb/persist_data.py
index c69758dd5b234e9ca05df0b85cb47261f4c66591..994e61b0a6f9295d3504f7158947bb6cd4155328 100644 (file)
--- a/lib/bb/persist_data.py
+++ b/lib/bb/persist_data.py
@@ -125,6 +125,11 @@ class SQLTable(collections.MutableMapping):
 
         return len(self) < len(other)
 
+    def get_by_pattern(self, pattern):
+        data = self._execute("SELECT * FROM %s WHERE key LIKE ?;" %
+                             self.table, [pattern])
+        return [row[1] for row in data]
+
     def values(self):
         return list(self.itervalues())