23 lines
619 B
JavaScript
23 lines
619 B
JavaScript
'use strict';
|
|
|
|
const get = require('../get');
|
|
|
|
module.exports = function applyReadConcern(schema, options) {
|
|
if (options.readConcern !== undefined) {
|
|
return;
|
|
}
|
|
|
|
// Don't apply default read concern to operations in transactions,
|
|
// because you shouldn't set read concern on individual operations
|
|
// within a transaction.
|
|
// See: https://www.mongodb.com/docs/manual/reference/read-concern/
|
|
if (options && options.session && options.session.transaction) {
|
|
return;
|
|
}
|
|
|
|
const level = get(schema, 'options.readConcern.level', null);
|
|
if (level != null) {
|
|
options.readConcern = { level };
|
|
}
|
|
};
|