CODEWITHSUNDEEP
javascriptmeteor
Octtavius
Octtavius

Reputation: 591

Get field value from mongoDB and assign to a var gives undefined

I am using MeteorJS and trying to get the value of a field from MongoDB and assign to a variable. But when want to print to console, it gives all the time 'undefined'. It works fine in HTML template, but i need to store the value in a var in .js file.

var num = ButtonsList.find({_id:'ZcLkjSwNGTpgHkoeq'});
    var n = num.button1;
    console.log("button number is: "+n);

The code below works fine by the way, if i want them to output in the browser. It outputs the buttons numbers in html using {{}} namespace. But as I said, i need to store the values in variables.

ButtonsList = new Meteor.Collection('list');

Template.theList.helpers({
'buttons': function(){
    //return ButtonsList.find().fetch();
    return ButtonsList.find('ZcLkjSwNGTpgHkoeq');
}
});

Upvotes: 1

Views: 1238

Answers (2)

WouldBeNerd
WouldBeNerd

Reputation: 687

Your using Find , doesnt that mean your getting multiple reccords back? Shouldnt you be using FindOne instead? otherwise youll get an array of objects which means youd have to use num[i].button1 to get to the value.

Upvotes: 1

Elie Steinbock
Elie Steinbock

Reputation: 5108

ButtonsList.find() returns a cursor.

ButtonsList.find().fetch() returns an array of buttons.

ButtonsList.findOne() returns will return a single button.

ButtonsList.findOne().fieldName will return the field fieldName of the button that was found.

The reason it works with the {{#each}} template block helper is that each blocks know how to iterate over cursors.

Upvotes: 2

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