@russ-b/nestjs-common-tools/dist/class-transformer/to-boolean-from-string.decorator.js

NestJS utility tools

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseBooleanFromStringTransformer = void 0;
exports.ToBooleanFromString = ToBooleanFromString;
const class_transformer_1 = require("class-transformer");
function ToBooleanFromString() {
    return (0, class_transformer_1.Transform)(exports.parseBooleanFromStringTransformer);
}
const parseBooleanFromStringTransformer = ({ value, }) => normalizeBooleanFromString(value);
exports.parseBooleanFromStringTransformer = parseBooleanFromStringTransformer;
function normalizeBooleanFromString(value) {
    if (value === undefined) {
        return undefined;
    }
    if (typeof value === 'boolean') {
        return value;
    }
    if (typeof value === 'string') {
        const normalizedValue = value.trim().toLowerCase();
        if (normalizedValue === 'true') {
            return true;
        }
        if (normalizedValue === 'false') {
            return false;
        }
    }
    return value;
}
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