Build Applications with Meteor

Defaults

Every time we insert a new item, we set the quantity to one manually, which is what we need when a user adds one product to the cart.

We can specify defaults in the schema and let it take care of it:

 quantity: {   type: Number,   defaultValue: 1,   optional: false },

In the cartInsert method, we can clean the document before inserting it:

 cartInsert: function(product) { CartCollection.schema.clean(product);

This will add the quantity field to the product document, which was not passed by the client.

Checks with the Schema:

cartInsert: function(product) { check( product, CartCollection.schema);

The way we've added the Schema is by importing the collection and then assigning the schema to it. Another, cleaner, way is to attach a schema ...