CODEWITHSUNDEEP
angularjsfilterloopback
Natu Myers
Natu Myers

Reputation: 496

Loopback + Angular: `findById` Error. Expected response to contain an object but got an array

I'm trying to apply a filter for a chat room that makes it so that I only see messages that have a foreign key relationship to that chat room displayed, so I'm trying to pass shownMessages to the view. How do I do this effectively? The current error I'm dealing with is Error: [$resource:badcfg] Error in resource configuration for actionfindById. Expected response to contain an object but got an array. I'm searching as best as I can and still, nothing to my avail.

  // for inside the room
  // node - injection order is extremely important
  .controller('InsideRoomController', ['$scope', '$q', 'ChatRoom', 'ChatMessage', '$stateParams', '$state', function($scope, $q,
      ChatRoom, ChatMessage,  $stateParams, $state) {
        // we include Chatroom as a param to the controller and func since we work with that to display it's contents
        // only show messages pertaining to that room
        $scope.shownMessages = [];

        ChatMessage
          .findById({ id: $stateParams.messagesInChat })
          .$promise
          .then(function(showMessages) { // once we query to find chat rooms
            $scope.shownMessages = shownMessages;
          });

  }])

relationsInChat is the name of the foriegn key relation I made in loopback between ChatRoom and ChatMessage which was generated in chat-room.json:

{
  "name": "ChatRoom",
  "base": "PersistedModel",
  "idInjection": true,
  "options": {
    "validateUpsert": true
  },
  "properties": {
    "name": {
      "type": "string",
      "required": true
    },
    "city": {
      "type": "string"
    }
  },
  "validations": [],
  "relations": {
    "ChatMessagers": {
      "type": "hasMany",
      "model": "ChatMessager",
      "foreignKey": ""
    },
    "chatMessages": {
      "type": "hasMany",
      "model": "ChatMessage",
      "foreignKey": "messagesInChat"
    }
  },
  "acls": [],
  "methods": {}
}

Edit: How do I get all messages belonging to the chat via foreign key? I'm trying to use stateparams but not sure how

Upvotes: 0

Views: 175

Answers (2)

Natu Myers
Natu Myers

Reputation: 496

I got what I needed. Needed an include filter! http://loopback.io/doc/en/lb2/Include-filter.html

  .controller('InsideRoomController', ['$scope', '$q', 'ChatRoom', 'ChatMessage', '$stateParams', '$state', function($scope, $q,
      ChatRoom, ChatMessage,  $stateParams, $state) {
        // we include Chatroom as a param to the controller and func since we work with that to display it's contents
        // only show messages pertaining to that room
        $scope.shownMessages = [];

        function getMsgs() {
          //User.find({where: {vip: true}, limit: 10}, cb);
          return (ChatRoom.find({include: ['ChatMessages']}))
        };

        $scope.shownMessages =  getMsgs();
        console.log($scope.shownMessages);
  }])

Upvotes: 0

Vineet Agrawal
Vineet Agrawal

Reputation: 156

Try printing $stateParams.messagesInChat value. As the error shows, it contains an array rather than object(means multiple value is present instead of single ID), but findByID accept only one value as you are finding the data for only one ID.

Upvotes: 1

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