René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"database list query with multiple Subject parameters","articleBody":"Here's a plunker of what I'm trying to do, and it has the issues I'm seeing with needing to perform a search twice before getting results back\nhttp://plnkr.co/edit/HaWIwkhPWz08qJT6mYuJ?p=preview\n\nBasically I have composite keys so I can search multiple fields with a single query, and based on the search terms supplied I need to change which key I search on. So I'm setting query.orderByChild and query.equalTo to two different Subject variables and calling next() on them both during a search.\n\nI dont know if there's a different way to accomplish this, but what I'm doing doesn't seem to work.\n\nI also tried setting the whole query object to a Subject variable and calling next on it (example next({orderByChild: 'state', equalTo: 0}), but that didnt work either.\n","author":{"url":"https://github.com/nelsonad","@type":"Person","name":"nelsonad"},"datePublished":"2016-10-08T08:20:46.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/603/angularfire/issues/603"}