Im setting up my MongoDB models, and I have one models schema (Partition model) setup in such a way that one of the schema items (fields) is an array of items that follows another schema (Field schema)
Here's the Partition model (with the Partition schema and the Field schema):
// Partition model
module.exports = Mongoose => {
const Schema = Mongoose.Schema
// Field Schema
const fieldSchema = new Schema({
name: {
type: Schema.Types.String
}
})
// Partition Schema
const partitionSchema = new Schema({
name: {
type: Schema.Types.String
},
// `fields` is an array of objects that must follow the `fieldSchema`
fields: [ fieldSchema ]
})
return Mongoose.model( 'Partition', partitionSchema )
}
Then I have another model (Asset model), which has an attributes array, which holds objects that each have two items, _field and value. the _field needs to be an ID that will reference an item in the Partition models fields._id values.
Heres the Asset model:
// Asset model
module.exports = Mongoose => {
const Schema = Mongoose.Schema
const assetSchema = new Schema({
attributes: [{
// The attributes._field should reference one of the Partition field values
_field: {
type: Schema.Types.ObjectId,
ref: 'Partition.fields' // <-- THIS LINE
},
value: {
type: Schema.Types.Mixed,
required: true
}
}],
// Reference the partition ID this asset belongs to
_partition: {
type: Schema.Types.ObjectId,
ref: 'Partition'
}
})
return Mongoose.model( 'Asset', assetSchema )
}
Where I'm running into issues, is with the _field item in the Asset schema. Im not sure what I should set as the ref value, since its referencing a sub-schema (meaning the Field schema within the Partition schema)
I may have overlooked it in the docs, but I didn't see anything. How can I reference a models sub-schema, so when I populate that item in the query, it populates it with the sub-documents inside the Partition model documents?
Ive tried to reference the field documents as Partition.fields, which resulted in the error:
MissingSchemaError: Schema hasn't been registered for model "Partition.fields".
I tried the above ref value based on what I read from another SO thread, but it doesn't seem to work.
