How to retrieve user data based on ID using Angular SDK

I have limited experience with the Angular SDK and lb-service, and I'm unsure about how to retrieve another user's information by their ID within a controller.

I am trying to implement a feature for displaying a friend list, where each user only stores the IDs of their friends. The account properties are defined as follows:

  "name": "account",
  "base": "User",
  "idInjection": true,
  "options": {
    "validateUpsert": true
  },
  "properties": {
    "email": {
      "type": "string",
      "required": true
    },
    "password": {
      "type": "string",
      "required": true
    },
    "firstName": {
      "type": "string",
      "required": true
    },
    "lastName": {
      "type": "string",
      "required": true
    },
    "gender": {
      "type": "string",
      "required": true,
      "default": "Male"
    },
    "contact": {
      "type": "number"
    },
    "friends": {
      "type": [
        "string"
      ]
    },
    "status": {
      "type": "string"
    }
  }
},

  "acls": [
    {
      "accessType": "READ",
      "principalType": "ROLE",
      "principalId": "$everyone",
      "permission": "ALLOW"
    },
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "$owner",
      "permission": "ALLOW"
    },
    {
      "accessType": "READ",
      "principalType": "ROLE",
      "principalId": "$unauthenticated",
      "permission": "DENY"
    },
    {
      "accessType": "*",
      "principalType": "ROLE",
      "principalId": "admin",
      "permission": "ALLOW"
    }
  ]

In the lb-services.js file, it seems that I can use the findById function to locate a user, but I am curious about how to query a friend's properties in order to obtain each user's information.

javascriptarraysangularjsmongodb

Answer №1

If you want to retrieve a user's details using an index-style ID, where the array 'friends' holds all user information, your query function should look like this:

function getUserById(id){
    return friends[id];
}

To fetch information for all users:

for(var i = 0; i < friends.length; i++){
    console.log(getUserById(i));
}

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