rudeshark.net/src/misc/cafy-id.ts

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