diff --git a/synapse/storage/search.py b/synapse/storage/search.py
index cdf003502f..3cea2011fa 100644
--- a/synapse/storage/search.py
+++ b/synapse/storage/search.py
@@ -16,18 +16,13 @@
from twisted.internet import defer
from _base import SQLBaseStore
+from synapse.api.errors import SynapseError
from synapse.storage.engines import PostgresEngine, Sqlite3Engine
-from collections import namedtuple
+import logging
-"""The result of a search.
-Fields:
- rank_map (dict): Mapping event_id -> rank
- event_map (dict): Mapping event_id -> event
- pagination_token (str): Pagination token
-"""
-SearchResult = namedtuple("SearchResult", ("rank_map", "event_map", "pagination_token"))
+logger = logging.getLogger(__name__)
class SearchStore(SQLBaseStore):
@@ -42,7 +37,7 @@ class SearchStore(SQLBaseStore):
"content.body", "content.name", "content.topic"
Returns:
- SearchResult
+ list of dicts
"""
clauses = []
args = []
@@ -100,12 +95,103 @@ class SearchStore(SQLBaseStore):
for ev in events
}
- defer.returnValue(SearchResult(
+ defer.returnValue([
{
- r["event_id"]: r["rank"]
- for r in results
- if r["event_id"] in event_map
- },
- event_map,
- None
- ))
+ "event": event_map[r["event_id"]],
+ "rank": r["rank"],
+ }
+ for r in results
+ if r["event_id"] in event_map
+ ])
+
+ @defer.inlineCallbacks
+ def search_room(self, room_id, search_term, keys, limit, pagination_token=None):
+ """Performs a full text search over events with given keys.
+
+ Args:
+ room_id (str): The room_id to search in
+ search_term (str): Search term to search for
+ keys (list): List of keys to search in, currently supports
+ "content.body", "content.name", "content.topic"
+ pagination_token (str): A pagination token previously returned
+
+ Returns:
+ list of dicts
+ """
+ clauses = []
+ args = [search_term, room_id]
+
+ local_clauses = []
+ for key in keys:
+ local_clauses.append("key = ?")
+ args.append(key)
+
+ clauses.append(
+ "(%s)" % (" OR ".join(local_clauses),)
+ )
+
+ if pagination_token:
+ try:
+ topo, stream = pagination_token.split(",")
+ topo = int(topo)
+ stream = int(stream)
+ except:
+ raise SynapseError(400, "Invalid pagination token")
+
+ clauses.append(
+ "(topological_ordering < ?"
+ " OR (topological_ordering = ? AND stream_ordering < ?))"
+ )
+ args.extend([topo, topo, stream])
+
+ if isinstance(self.database_engine, PostgresEngine):
+ sql = (
+ "SELECT ts_rank_cd(vector, query) as rank,"
+ " topological_ordering, stream_ordering, room_id, event_id"
+ " FROM plainto_tsquery('english', ?) as query, event_search"
+ " NATURAL JOIN events"
+ " WHERE vector @@ query AND room_id = ?"
+ )
+ elif isinstance(self.database_engine, Sqlite3Engine):
+ sql = (
+ "SELECT rank(matchinfo(event_search)) as rank, room_id, event_id"
+ " topological_ordering, stream_ordering"
+ " FROM event_search"
+ " NATURAL JOIN events"
+ " WHERE value MATCH ? AND room_id = ?"
+ )
+ else:
+ # This should be unreachable.
+ raise Exception("Unrecognized database engine")
+
+ for clause in clauses:
+ sql += " AND " + clause
+
+ # We add an arbitrary limit here to ensure we don't try to pull the
+ # entire table from the database.
+ sql += " ORDER BY topological_ordering DESC, stream_ordering DESC LIMIT ?"
+
+ args.append(limit)
+
+ results = yield self._execute(
+ "search_rooms", self.cursor_to_dict, sql, *args
+ )
+
+ events = yield self._get_events([r["event_id"] for r in results])
+
+ event_map = {
+ ev.event_id: ev
+ for ev in events
+ }
+
+ defer.returnValue([
+ {
+ "event": event_map[r["event_id"]],
+ "rank": r["rank"],
+ "pagination_token": "%s,%s" % (
+ r["topological_ordering"], r["stream_ordering"]
+ ),
+ }
+ for r in results
+ if r["event_id"] in event_map
+ ])
|
