blow-data/lib/validators/unique.js

Data access layer for Blow.

'use strict';
const blow_query_1 = require('blow-query');
function uniqueFactory(model) {
    return function unique(propertyName) {
        const query = new blow_query_1.Query();
        query.equal(propertyName, this[propertyName]);
        return model.count(query.toJSON().where).map(c => {
            if (c === 0) {
                return;
            }
            return `'${propertyName}' does not have unique value`;
        });
    };
}
exports.uniqueFactory = uniqueFactory;