33 lines
1003 B
JavaScript
33 lines
1003 B
JavaScript
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import EmbeddedCollection from "./embedded-collection.mjs";
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/**
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* This class provides a {@link Collection} wrapper around a singleton embedded Document so that it can be interacted
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* with via a common interface.
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*/
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export default class SingletonEmbeddedCollection extends EmbeddedCollection {
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/** @inheritdoc */
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set(key, value) {
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if ( this.size && !this.has(key) ) {
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const embeddedName = this.documentClass.documentName;
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const parentName = this.model.documentName;
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throw new Error(`Cannot create singleton embedded ${embeddedName} [${key}] in parent ${parentName} `
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+ `[${this.model.id}] as it already has one assigned.`);
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}
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return super.set(key, value);
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}
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/* -------------------------------------------- */
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/** @override */
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_set(key, value) {
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this.model._source[this.name] = value?._source ?? null;
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}
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/* -------------------------------------------- */
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/** @override */
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_delete(key) {
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this.model._source[this.name] = null;
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}
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}
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