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.
47 lines
1.0 KiB
47 lines
1.0 KiB
5 years ago
|
'use strict';
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = function selectPopulatedFields(query) {
|
||
|
|
const opts = query._mongooseOptions;
|
||
|
|
|
||
|
|
if (opts.populate != null) {
|
||
|
|
const paths = Object.keys(opts.populate);
|
||
|
|
const userProvidedFields = query._userProvidedFields || {};
|
||
|
|
if (query.selectedInclusively()) {
|
||
|
|
for (const path of paths) {
|
||
|
|
if (!isPathInFields(userProvidedFields, path)) {
|
||
|
|
query.select(path);
|
||
|
|
} else if (userProvidedFields[path] === 0) {
|
||
|
|
delete query._fields[path];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (query.selectedExclusively()) {
|
||
|
|
for (const path of paths) {
|
||
|
|
if (userProvidedFields[path] == null) {
|
||
|
|
delete query._fields[path];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/*!
|
||
|
|
* ignore
|
||
|
|
*/
|
||
|
|
|
||
|
|
function isPathInFields(userProvidedFields, path) {
|
||
|
|
const pieces = path.split('.');
|
||
|
|
const len = pieces.length;
|
||
|
|
let cur = pieces[0];
|
||
|
|
for (let i = 1; i < len; ++i) {
|
||
|
|
if (userProvidedFields[cur] != null) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
cur += '.' + pieces[i];
|
||
|
|
}
|
||
|
|
return userProvidedFields[cur] != null;
|
||
|
|
}
|