Add fix for #600

src/invidious/helpers/handlers.cr

@@ -225,3 +225,41 @@ class HTTP::Client
     response
   end
 end
+
+# https://github.com/will/crystal-pg/pull/171
+class PG::Statement < ::DB::Statement
+  protected def perform_query(args : Enumerable) : ResultSet
+    params = args.map { |arg| PQ::Param.encode(arg) }
+    conn = self.conn
+    conn.send_parse_message(@sql)
+    conn.send_bind_message params
+    conn.send_describe_portal_message
+    conn.send_execute_message
+    conn.send_sync_message
+    conn.expect_frame PQ::Frame::ParseComplete
+    conn.expect_frame PQ::Frame::BindComplete
+    frame = conn.read
+    case frame
+    when PQ::Frame::RowDescription
+      fields = frame.fields
+    when PQ::Frame::NoData
+      fields = nil
+    else
+      raise "expected RowDescription or NoData, got #{frame}"
+    end
+    ResultSet.new(self, fields)
+  rescue IO::Error
+    raise DB::ConnectionLost.new(connection)
+  end
+
+  protected def perform_exec(args : Enumerable) : ::DB::ExecResult
+    result = perform_query(args)
+    result.each { }
+    ::DB::ExecResult.new(
+      rows_affected: result.rows_affected,
+      last_insert_id: 0_i64 # postgres doesn't support this
+    )
+  rescue IO::Error
+    raise DB::ConnectionLost.new(connection)
+  end
+end