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POHow to add an item to a collection in RacerJs DerbyJs?
 

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  1. POHow to add an item to a collection in RacerJs DerbyJs?
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    <p>I want to add an item to a collection using RacerJs/DerbyJs, but it just doesn't work. I must be really overlooking something...</p> <p>What I tried</p> <pre><code>model.set('news', [ { text: "something" } ]); </code></pre> <p>And that <em>does</em> set a news-item. However, when I do this <em>another</em> time, it will just overwrite the existing item, and <em>not</em> add a new one. How to do that? </p> <p><code>model.push('news', {text:"someText"})</code> also fails with "Object is not an array". </p> <p>Basically, I just want the most basic version of a "post an update and show on 'wall' app", without any rooms nor making use of Arrays. Just one collection, and that's it.</p> <p>Stacktrace of the <code>.push()</code> variant:</p> <pre>Wed May 22 2013 09:35:24 GMT+0200 (W. Europe Daylight Time) (23168) d7564d2d-f23 8-4ce0-a0a2-6e376e9b5cb1 ? ver: 0 - push 'news', { text: 'adsf' } C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\ Memory.js:185 throw new TypeError(arr + ' is not an Array'); ^ TypeError: [object Object] is not an Array at Object.arrayLookupSet [as _arrayLookupSet] (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Memory.js:185:11) at Object.applyArrayMethod [as _applyArrayMethod] (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Memory.js:145:18) at Object.push (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Memory.js:118:15) at applyTxn (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\transaction.js:114:32) at Object.exports.applyTxnToDoc (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\transaction.js:126:3) at Function.QueryInterface.publish (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\pubsub-memory\channel-interface-query.js:25:24) at PubSub.publish (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\pubSub\PubSub.js:63:10) at Store.module.exports.proto.publish (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\pubSub\pubSub.Store.js:174:20) at publish (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:230:15) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:7:26) at module.exports.events.middleware.txn (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:220:11) at Store._sendToDb.lockingDone (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Store.js:294:12) at mergeAll.setupRoutes (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\db-memory\index.js:70:13) at DbMemory.mergeAll.get (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\db-memory\index.js:44:5) at mergeAll.setupRoutes (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\db-memory\index.js:62:16) at DbMemory.mergeAll.get (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\db-memory\index.js:44:5) at mergeAll.setupRoutes (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\adapters\db-memory\index.js:60:14) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Store.js:321:15) at Store._sendToDb (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\Store.js:324:10) at writeToDb (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:216:15) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:7:26) at serialEmitPrep (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:125:9) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:7:26) at incrVer (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\modes\lww.js:18:12) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:7:26) at Object.module.exports.events.init.store.eachContext.context.guardWrite (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\accessControl\accessControl.Store.js:54:51) at accessController (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:103:17) at next (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:7:26) at Object.run (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\middleware.js:10:12) at Socket.module.exports.events.socket (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\txns\txns.Store.js:267:26) at Socket.racer.log.sockets.sockets.on.socket.on (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\lib\log.server.js:150:20) at Socket.EventEmitter.emit [as $emit] (events.js:91:17) at SocketNamespace.handlePacket (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\namespace.js:335:22) at Manager.onClientMessage (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\manager.js:488:38) at WebSocket.Transport.onMessage (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transport.js:387:20) at Parser. (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:39:10) at Parser.EventEmitter.emit (events.js:88:17) at opcodeHandlers.1.finish (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:288:16) at Parser.opcodeHandlers.1.expectData [as expectHandler] (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:299:15) at Parser.add (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:466:24) at Parser.expect (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:499:10) at Parser.opcodeHandlers.1.expectData (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:298:18) at Parser.add (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:466:24) at Parser.expect (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:499:10) at opcodeHandlers.1.expectData (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:296:16) at opcodeHandlers.1 (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:313:9) at Parser.processPacket (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:533:8) at Parser.add (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:466:24) at Socket.WebSocket.onSocketConnect (C:\xampp\htdocs\Derbyjs\KnowEdge\app1\node_modules\derby\node_modules\racer\node_modules\socket.io\lib\transports\websocket\hybi-16.js:141:17) at Socket.EventEmitter.emit (events.js:88:17) at TCP.onread (net.js:396:14)</pre>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USSLaks
    1. USWillem Mulder
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    2. PO
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    1. This table or related slice is empty.
    1. COWhat's the stack trace?
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      1. POHow to add an item to a collection in RacerJs DerbyJs?
      1. USSLaks
    2. COThanks for checking; I updated the question with the stacktrace!
      singulars
      1. POHow to add an item to a collection in RacerJs DerbyJs?
      1. USWillem Mulder
 

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