salix/services/loopback/common/models/item.js

31 lines
960 B
JavaScript

let UserError = require('../helpers').UserError;
module.exports = function(Self) {
require('../methods/item/filter.js')(Self);
require('../methods/item/clone.js')(Self);
require('../methods/item/updateTaxes.js')(Self);
Self.validatesPresenceOf('name', {message: 'Cannot be blank'});
Self.validatesPresenceOf('originFk', {message: 'Cannot be blank'});
Self.observe('before save', async function(ctx) {
await Self.availableId(ctx);
});
Self.availableId = async function(ctx) {
if (ctx.isNewInstance) {
try {
let query = `SELECT i1.id + 1 as id FROM vn.item i1
LEFT JOIN vn.item i2 ON i1.id + 1 = i2.id
WHERE i2.id IS NULL ORDER BY i1.id LIMIT 1`;
let newId = await Self.rawSql(query);
ctx.instance.id = newId[0].id;
} catch (e) {
throw new UserError(e);
}
}
};
};