I have a question about how to just get a certain element of an array using MongoDB and MeteorJS. I have the following schema for the user document:
bankList:[
{
id: "34567890987654345678",
name: "xfgchjbkn",
type: "credit"
},
{
id: "09876543456789098767"
name: "65789876t8",
type: "debit"
}
]
I first subscribe to only part of the fields in the array, specifically I gather a list of all the ids. Then I have an edit screen that should subscribe to all of the fields for a specific element in the array with a matching id. I do not want to expose the rest of the array just the single element. Currently, I use the following to first gather a list of just the ids:
Meteor.users.find({_id: this.userId},
{fields:{'bankList.id': 1}});
And the following publication-subscription method to get just a specific element's information:
Publication:
Meteor.publish("userBankAdvanced", function(bankId){
check(bankId,String);
if(this.userId){
return Meteor.users.find({_id:this.userId,"bankList.id": bankId}, {'bankList.$': 1});
}else{
this.ready();
}
});
Subscription:
this.route('edit_account', {
path: '/edit/account/',
waitOn: function(){
if(Session.get("bankId")){
return Meteor.subscribe('userBankAdvanced',Session.get("bankId"));
}
return null;
},
data: function(){
if(Session.get("bankId")){
return Meteor.users.findOne();
}
return null;
},
onBeforeAction: function(){
beforeHooks.isRevise(Session.get("bankId"));
}
});
The subscription method returns all of the elements of the array with all of the information. I want, for example, just this (not the entire list with all of the information):
bankList:[
{
id: "34567890987654345678",
name: "xfgchjbkn",
type: "credit"
}]