Simple Chat Room in NodeJS, expressJS and mongoDB in Docker Swarm
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'use strict';
/*!
* returns discriminator by discriminatorMapping.value
*
* @param {Model} model
* @param {string} value
*/
module.exports = function getDiscriminatorByValue(model, value) {
let discriminator = null;
if (!model.discriminators) {
return discriminator;
}
for (const name in model.discriminators) {
const it = model.discriminators[name];
if (
it.schema &&
it.schema.discriminatorMapping &&
it.schema.discriminatorMapping.value == value
) {
discriminator = it;
break;
}
}
return discriminator;
};