func executeItemQuery(con *Context, q *datastore.Query, limit int, cursorStr string) ([]Item, string, error) {
if cursor, err := datastore.DecodeCursor(cursorStr); err == nil {
q = q.Start(cursor)
}
var is = make([]Item, 0, limit)
var err error
t := q.Run(con.C)
for {
var i Item
_, err = t.Next(&i)
if err == datastore.Done {
break
}
is = append(is, i)
if err != nil {
con.Log.Errorf("Error fetching next item: %v", err)
return nil, "", err
}
}
var cursor datastore.Cursor
if cursor, err = t.Cursor(); err == nil {
return is, cursor.String(), nil
}
return nil, "", err
}
