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我需要在用Angular進行單擊後啓用/禁用按鈕。當用戶點擊「提交表單」時,它會發出http
請求。如果發生錯誤(在catch
內),我想重新啓用指令按鈕,以便用戶可以再次嘗試。我有一個使用controllerAs
語法和isolateScope
的指令。下面是我的代碼(在這裏簡化);在Angular的隔離範圍指令中禁用/重新啓用按鈕
myCtrl
父控制器(controllerAs是myCtrl
)
vm.submit = function() {
MyService
.update()
.then(function(res) {
// success
})
.catch(function(err) {
vm.error = true;
// error
});
};
父視圖與my-form
指令
<my-form form-submit='myCtrl.submit()'></my-form>
myForm
指令
function myForm() {
return {
restrict: 'E',
replace: true,
templateUrl: 'myform.html',
scope: {
formSubmit: '&',
},
require: ['form', 'myForm'],
link: function(scope, element, attrs, ctrls) {
var formCtrl = ctrls[0];
var directiveCtrl = ctrls[1];
scope.isButtonDisabled = false;
scope.submit = function() {
scope.submitted = true;
directiveCtrl.submit();
};
},
controller: function($scope, $element, $attrs) {
var vm = this;
// Submit parent function
vm.submit = function() {
vm.formSubmit();
};
},
controllerAs: 'myFormCtrl',
bindToController: true
};
}
angular.module('mymodule')
.directive('myForm', [ myForm ]);
myForm
指令模板
<form name='myForm' novalidate>
// form fields
<button ng-click='submit()' ng-disabled='isButtonDisabled'>Submit Form</button>
</form>