@seges/angular-validators/src/app/validators/value/maxValue.ts

TypeScript 1.8.10

import { IValidator } from "../IValidator";

export interface IMaxValueAttrs extends ng.IAttributes {
    maxValue: string;
}

export class MaxValueValidator implements IValidator<void> {
    /**
     * Function to use outside angular validation.
     * @param value The value to check.
     * @param compareValue The maximum allowed value.
     */
    static validate(value: number, compareValue: number): boolean {
        if (!value || !compareValue) {
            return false;
        }

        return value <= compareValue;
    }

    /**
     * Validate if one value (number) is greater than other
     * Return true if value is greater than compare value. Otherwise return false
     * @param value: Value to check
     * @param attrs: ng.IAttributes
     */
    isValid(value: string, attrs?: IMaxValueAttrs): boolean {
        if (!value || !attrs.maxValue) {
            return false;
        }

        // The toString() is invoked to ensure it is actually a string we manipulate.
        // Input elements in IE pass values as strings while the model can pass values as numbers.
        // hence this workaround is required.
        let floatValue = value.toString().replace(",", ".");
        let floatMaxValue = attrs.maxValue.replace(",", ".");

        return parseFloat(floatValue) <= parseFloat(floatMaxValue);
    }
}