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hotomoe/src/cafy-id.ts
2018-05-02 18:06:16 +09:00

30 lines
583 B
TypeScript

import * as mongo from 'mongodb';
import { Query } from 'cafy';
export const isAnId = x => mongo.ObjectID.isValid(x);
export const isNotAnId = x => !isAnId(x);
/**
* ID
*/
export default class ID extends Query<mongo.ObjectID> {
constructor() {
super();
this.transform = v => {
if (isAnId(v) && !mongo.ObjectID.prototype.isPrototypeOf(v)) {
return new mongo.ObjectID(v);
} else {
return v;
}
};
this.push(v => {
if (!mongo.ObjectID.prototype.isPrototypeOf(v) && isNotAnId(v)) {
return new Error('must-be-an-id');
}
return true;
});
}
}