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54 lines
1.8 KiB
JavaScript
54 lines
1.8 KiB
JavaScript
'use strict';
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const get = require('../get');
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const getSchemaDiscriminatorByValue = require('../discriminator/getSchemaDiscriminatorByValue');
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/**
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* Like `schema.path()`, except with a document, because impossible to
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* determine path type without knowing the embedded discriminator key.
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*
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* @param {Document} doc
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* @param {String|String[]} path
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* @param {Object} [options]
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* @api private
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*/
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module.exports = function getEmbeddedDiscriminatorPath(doc, path, options) {
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options = options || {};
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const typeOnly = options.typeOnly;
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const parts = Array.isArray(path) ?
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path :
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(path.indexOf('.') === -1 ? [path] : path.split('.'));
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let schemaType = null;
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let type = 'adhocOrUndefined';
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const schema = getSchemaDiscriminatorByValue(doc.schema, doc.get(doc.schema.options.discriminatorKey)) || doc.schema;
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for (let i = 0; i < parts.length; ++i) {
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const subpath = parts.slice(0, i + 1).join('.');
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schemaType = schema.path(subpath);
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if (schemaType == null) {
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type = 'adhocOrUndefined';
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continue;
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}
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if (schemaType.instance === 'Mixed') {
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return typeOnly ? 'real' : schemaType;
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}
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type = schema.pathType(subpath);
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if ((schemaType.$isSingleNested || schemaType.$isMongooseDocumentArrayElement) &&
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schemaType.schema.discriminators != null) {
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const discriminators = schemaType.schema.discriminators;
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const discriminatorKey = doc.get(subpath + '.' +
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get(schemaType, 'schema.options.discriminatorKey'));
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if (discriminatorKey == null || discriminators[discriminatorKey] == null) {
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continue;
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}
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const rest = parts.slice(i + 1).join('.');
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return getEmbeddedDiscriminatorPath(doc.get(subpath), rest, options);
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}
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}
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// Are we getting the whole schema or just the type, 'real', 'nested', etc.
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return typeOnly ? type : schemaType;
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};
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