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Hierarquia multinível de dados ember com sempre incorporado


Ainda há algumas correções de bugs no ember-rails:Sofremos por causa da função 
extractEmbeddedBelongsTo: function(loader, relationship, data, parent, prematerialized)     {
var reference = this.extractRecordRepresentation(loader, relationship.type, data, true);
prematerialized[relationship.key] = reference;

// If the embedded record should also be saved back when serializing the parent,
// make sure we set its parent since it will not have an ID.
var embeddedType = this.embeddedType(parent.type, relationship.key);
if (embeddedType === 'always') {
  reference.parent = parent;
}

}

A relação BelongsTo está pulando a extração de objetos incorporados. O errado está aqui:
extractEmbeddedBelongsTo: function(loader, relationship, data, parent, prematerialized) {
var reference = loader.sideload(relationship.type, data);
prematerialized[relationship.key] = reference;

// If the embedded record should also be saved back when serializing the parent,
// make sure we set its parent since it will not have an ID.
var embeddedType = this.embeddedType(parent.type, relationship.key);
if (embeddedType === 'always') {
  reference.parent = parent;
}

}