Function getTargetsFromPropRef

packages/db/src/query/compiler/lazy-targets.ts:128–160

(
  query: QueryIR,
  ref: PropRef,
)

}

function getTargetsFromPropRef(
  query: QueryIR,
  ref: PropRef,
): Array<LazyLoadTarget> {
  if (ref.path.length === 0) {
    return []
  }

  if (ref.path.length === 1) {
    const field = ref.path[0]!
    const selectedField = query.select?.[field]
    if (selectedField) {
      return getTargetsFromExpression(query, selectedField)
    }
    return []
  }

  const [alias, ...path] = ref.path
  const source = getSourceFromAlias(query, alias!)
  if (!source) {
    return []
  }

  if (source.type === `collectionRef`) {
    return [{ alias: source.alias, collection: source.collection, path }]
  }

  if (source.query.limit || source.query.offset) {
    return []
  }

  return getTargetsFromQueryRef(source.query, source.alias, ref)
}

function getSourceFromAlias(
  query: QueryIR,