adb55fa965
* feat: Custom Length decorator for UTF-8 chars len * fix: Length decorator function return type
28 lines
693 B
TypeScript
28 lines
693 B
TypeScript
import { size } from "lodash";
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import { addAttributeOptions } from "sequelize-typescript";
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/**
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* A decorator that calculates size of the string based on lodash's size function.
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* particularly useful for strings with unicode characters of variable lengths.
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*/
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export function Length({
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msg,
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min,
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max,
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}: {
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msg?: string;
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min: number;
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max: number;
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}): (target: any, propertyName: string) => void {
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return (target: any, propertyName: string) =>
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addAttributeOptions(target, propertyName, {
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validate: {
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validLength(value: string) {
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if (size(value) > max || size(value) < min) {
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throw new Error(msg);
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}
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},
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},
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});
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}
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