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128 lines
3.6 KiB
128 lines
3.6 KiB
'use strict';
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const modifiedPaths = require('./common').modifiedPaths;
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const get = require('./get');
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/**
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* Applies defaults to update and findOneAndUpdate operations.
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*
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* @param {Object} filter
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* @param {Schema} schema
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* @param {Object} castedDoc
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* @param {Object} options
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* @method setDefaultsOnInsert
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* @api private
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*/
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module.exports = function(filter, schema, castedDoc, options) {
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options = options || {};
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const shouldSetDefaultsOnInsert =
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options.setDefaultsOnInsert != null ?
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options.setDefaultsOnInsert :
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schema.base.options.setDefaultsOnInsert;
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if (!options.upsert || !shouldSetDefaultsOnInsert) {
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return castedDoc;
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}
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const keys = Object.keys(castedDoc || {});
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const updatedKeys = {};
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const updatedValues = {};
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const numKeys = keys.length;
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const modified = {};
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let hasDollarUpdate = false;
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for (let i = 0; i < numKeys; ++i) {
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if (keys[i].startsWith('$')) {
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modifiedPaths(castedDoc[keys[i]], '', modified);
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hasDollarUpdate = true;
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}
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}
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if (!hasDollarUpdate) {
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modifiedPaths(castedDoc, '', modified);
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}
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const paths = Object.keys(filter);
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const numPaths = paths.length;
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for (let i = 0; i < numPaths; ++i) {
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const path = paths[i];
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const condition = filter[path];
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if (condition && typeof condition === 'object') {
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const conditionKeys = Object.keys(condition);
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const numConditionKeys = conditionKeys.length;
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let hasDollarKey = false;
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for (let j = 0; j < numConditionKeys; ++j) {
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if (conditionKeys[j].startsWith('$')) {
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hasDollarKey = true;
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break;
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}
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}
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if (hasDollarKey) {
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continue;
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}
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}
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updatedKeys[path] = true;
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modified[path] = true;
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}
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if (options && options.overwrite && !hasDollarUpdate) {
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// Defaults will be set later, since we're overwriting we'll cast
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// the whole update to a document
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return castedDoc;
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}
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schema.eachPath(function(path, schemaType) {
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// Skip single nested paths if underneath a map
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const isUnderneathMap = schemaType.path.endsWith('.$*') ||
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schemaType.path.indexOf('.$*.') !== -1;
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if (schemaType.$isSingleNested && !isUnderneathMap) {
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// Only handle nested schemas 1-level deep to avoid infinite
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// recursion re: https://github.com/mongodb-js/mongoose-autopopulate/issues/11
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schemaType.schema.eachPath(function(_path, _schemaType) {
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if (_path === '_id' && _schemaType.auto) {
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// Ignore _id if auto id so we don't create subdocs
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return;
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}
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const def = _schemaType.getDefault(null, true);
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if (!isModified(modified, path + '.' + _path) &&
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typeof def !== 'undefined') {
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castedDoc = castedDoc || {};
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castedDoc.$setOnInsert = castedDoc.$setOnInsert || {};
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castedDoc.$setOnInsert[path + '.' + _path] = def;
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updatedValues[path + '.' + _path] = def;
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}
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});
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} else {
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const def = schemaType.getDefault(null, true);
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if (!isModified(modified, path) && typeof def !== 'undefined') {
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castedDoc = castedDoc || {};
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castedDoc.$setOnInsert = castedDoc.$setOnInsert || {};
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if (get(castedDoc, path) == null) {
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castedDoc.$setOnInsert[path] = def;
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}
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updatedValues[path] = def;
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}
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}
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});
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return castedDoc;
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};
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function isModified(modified, path) {
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if (modified[path]) {
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return true;
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}
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const sp = path.split('.');
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let cur = sp[0];
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for (let i = 1; i < sp.length; ++i) {
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if (modified[cur]) {
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return true;
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}
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cur += '.' + sp[i];
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}
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return false;
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}
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