32 lines
932 B
JavaScript
32 lines
932 B
JavaScript
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import {isBlank, isPresent} from 'angular2/src/facade/lang';
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import {List, ListWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
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import {ControlGroup, Control} from 'angular2/forms';
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export function required(c:Control) {
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return isBlank(c.value) || c.value === "" ? {"required" : true} : null;
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}
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export function nullValidator(c:Control) {
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return null;
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}
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export function compose(validators:List<Function>):Function {
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return function(c:Control) {
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return ListWrapper.reduce(validators, (res, validator) => {
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var errors = validator(c);
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return isPresent(errors) ? StringMapWrapper.merge(res, errors) : res;
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}, {});
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}
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}
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export function controlGroupValidator(c:ControlGroup) {
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var res = {};
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StringMapWrapper.forEach(c.controls, (control, name) => {
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if (isPresent(control.errors)) {
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res[name] = control.errors;
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}
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});
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return StringMapWrapper.isEmpty(res) ? null : res;
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}
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