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84 lines
1.6 KiB
84 lines
1.6 KiB
5 years ago
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'use strict';
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const objectIdSymbol = require('../helpers/symbols').objectIdSymbol;
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const utils = require('../utils');
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/*!
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* ignore
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*/
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module.exports = function shardingPlugin(schema) {
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schema.post('init', function() {
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storeShard.call(this);
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return this;
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});
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schema.pre('save', function(next) {
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applyWhere.call(this);
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next();
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});
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schema.pre('remove', function(next) {
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applyWhere.call(this);
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next();
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});
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schema.post('save', function() {
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storeShard.call(this);
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});
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};
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/*!
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* ignore
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*/
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function applyWhere() {
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let paths;
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let len;
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if (this.$__.shardval) {
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paths = Object.keys(this.$__.shardval);
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len = paths.length;
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this.$where = this.$where || {};
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for (let i = 0; i < len; ++i) {
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this.$where[paths[i]] = this.$__.shardval[paths[i]];
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}
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}
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}
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/*!
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* ignore
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*/
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module.exports.storeShard = storeShard;
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/*!
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* ignore
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*/
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function storeShard() {
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// backwards compat
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const key = this.schema.options.shardKey || this.schema.options.shardkey;
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if (!utils.isPOJO(key)) {
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return;
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}
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const orig = this.$__.shardval = {};
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const paths = Object.keys(key);
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const len = paths.length;
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let val;
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for (let i = 0; i < len; ++i) {
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val = this.$__getValue(paths[i]);
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if (val == null) {
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orig[paths[i]] = val;
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} else if (utils.isMongooseObject(val)) {
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orig[paths[i]] = val.toObject({ depopulate: true, _isNested: true });
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} else if (val instanceof Date || val[objectIdSymbol]) {
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orig[paths[i]] = val;
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} else if (typeof val.valueOf === 'function') {
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orig[paths[i]] = val.valueOf();
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} else {
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orig[paths[i]] = val;
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}
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}
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}
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