Could you provide guidance on how to set up inheritance in models, particularly with MongoDB models generated using new Meteor.Collections? I am attempting to replicate some of the schemas from , and incorporating inheritance would greatly assist me in accurately modeling them.
If you're still exploring this topic, there are now updated documentation that provides support for this particular type of functionality. According to the revised docs:
// Implementation of an Animal class with document input in its constructor
Animal = function (doc) {
_.extend(this, doc);
};
_.extend(Animal.prototype, {
makeNoise: function () {
console.log(this.sound);
}
});
// Definition of a Collection utilizing Animal as its document model
Animals = new Mongo.Collection("Animals", {
transform: function (doc) { return new Animal(doc); }
});
// Instantiating an Animal and invoking its makeNoise method
Animals.insert({name: "raptor", sound: "roar"});
Animals.findOne({name: "raptor"}).makeNoise(); // outputs "roar"
When deciding on the inheritance model to use, consider the type of data you plan to store in your collections. If the classes are similar, it may be more efficient to combine them into one collection and include a special field like _type to differentiate between child classes.
Alternatively, you could create separate collections for each child class and have another collection dedicated to storing relationships between them.
In my opinion, the first approach is often quicker and simpler to implement.
To set up this kind of model definition, you might want to explore using the Meteor Astronomy package which can be found at https://github.com/jagi/meteor-astronomy
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