Adding new data to MongoDB alongside a corresponding key-value pair

Question

Adding new data to MongoDB alongside a corresponding key-value pair

I need to locate a specific object within an array, then insert additional data next to the matching key/value pair. Here is a sample scenario:

profile = [
   {
      data: 'value',
      array: [
         'one',
         'three'
      ]
   }
]

var i = 0;
var selector = 0;
_.each(profile, function(elem) {
    if (elem.data === 'value') {
        selector = i;
    }
    i++
}
profile[selector].array.push('two');

While this method works for adding to an array of objects/arrays, I'm looking for a way to achieve the same result using Meteor MongoDB. Is there a selector that allows me to pinpoint the correct array (based on a matching key/value pair) and then add new elements to the adjacent "array"?

javascript arrays mongodb meteor

Answer 1

Answer №1

If you have stored an object with a specific structure in mongodb, such as the following:

{
    profile : [
        {
            data: 'value',
            array: [
                'one',
                'three'
            ]
        }
    ]
}

You can utilize the following script in mongodb shell:

db.yourCollection.update(
    {"profile.data":"value"},
    {"$push":
        {
            "profile.$.array":"two"
        }
    }
);

This query locates the record where the profile's data property is set to "value" and appends "two" to the array property.

For more information, check out this resource: Mongodb $push in nested array

Answer 2

If you have stored an object with a specific structure in mongodb, such as the following:

{
    profile : [
        {
            data: 'value',
            array: [
                'one',
                'three'
            ]
        }
    ]
}

You can utilize the following script in mongodb shell:

db.yourCollection.update(
    {"profile.data":"value"},
    {"$push":
        {
            "profile.$.array":"two"
        }
    }
);

This query locates the record where the profile's data property is set to "value" and appends "two" to the array property.

For more information, check out this resource: Mongodb $push in nested array

Adding new data to MongoDB alongside a corresponding key-value pair

Answer №1

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