You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
1.6 KiB
84 lines
1.6 KiB
4 years ago
|
'use strict';
|
||
|
|
|
||
|
|
const objectIdSymbol = require('../helpers/symbols').objectIdSymbol;
|
||
|
|
const utils = require('../utils');
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = function shardingPlugin(schema) {
|
||
|
|
schema.post('init', function() {
|
||
|
|
storeShard.call(this);
|
||
|
|
return this;
|
||
|
|
});
|
||
|
|
schema.pre('save', function(next) {
|
||
|
|
applyWhere.call(this);
|
||
|
|
next();
|
||
|
|
});
|
||
|
|
schema.pre('remove', function(next) {
|
||
|
|
applyWhere.call(this);
|
||
|
|
next();
|
||
|
|
});
|
||
|
|
schema.post('save', function() {
|
||
|
|
storeShard.call(this);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
function applyWhere() {
|
||
|
|
let paths;
|
||
|
|
let len;
|
||
|
|
|
||
|
|
if (this.$__.shardval) {
|
||
|
|
paths = Object.keys(this.$__.shardval);
|
||
|
|
len = paths.length;
|
||
|
|
|
||
|
|
this.$where = this.$where || {};
|
||
|
|
for (let i = 0; i < len; ++i) {
|
||
|
|
this.$where[paths[i]] = this.$__.shardval[paths[i]];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports.storeShard = storeShard;
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
function storeShard() {
|
||
|
|
// backwards compat
|
||
|
|
const key = this.schema.options.shardKey || this.schema.options.shardkey;
|
||
|
|
if (!utils.isPOJO(key)) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const orig = this.$__.shardval = {};
|
||
|
|
const paths = Object.keys(key);
|
||
|
|
const len = paths.length;
|
||
|
|
let val;
|
||
|
|
|
||
|
|
for (let i = 0; i < len; ++i) {
|
||
|
|
val = this.$__getValue(paths[i]);
|
||
|
|
if (val == null) {
|
||
|
|
orig[paths[i]] = val;
|
||
|
|
} else if (utils.isMongooseObject(val)) {
|
||
|
|
orig[paths[i]] = val.toObject({ depopulate: true, _isNested: true });
|
||
|
|
} else if (val instanceof Date || val[objectIdSymbol]) {
|
||
|
|
orig[paths[i]] = val;
|
||
|
|
} else if (typeof val.valueOf === 'function') {
|
||
|
|
orig[paths[i]] = val.valueOf();
|
||
|
|
} else {
|
||
|
|
orig[paths[i]] = val;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|