所以我有这个过滤器指令:
app.directive('filter', function(){
return {
restrict: 'E',
transclude: true,
scope: {
callFunc: '&'
},
template:
' <div>' +
' <div ng-transclude></div>' +
' </div>',
controller: function($scope, $element, $attrs){
this.getData = function() {
$scope.callFunc()
}
}
}
});
app.directive('positions', function(){
return {
require: '^filter',
scope: {
selectedPos: '='
},
template:
' Positions: {{selectedPos}}' +
' <ul>' +
' <li ng-repeat="pos in positions">' +
' <a href="#" ng-click="setPosition(pos); posRegData()">{{pos.name}}</a></a>' +
' </li>' +
' </ul>',
controller: function($scope, $element, $attrs){
$scope.positions = [
{name: '1'},
{name: '2'},
{name: '3'},
{name: '4'},
{name: '5'}
];
$scope.selectedPos = $scope.positions[0].name;
$scope.setPosition = function(pos){
$scope.selectedPos = pos.name;
};
},
link: function(scope, element, attrs, filterCtrl) {
scope.posRegData = function() {
filterCtrl.getData();
}
}
}
})
控制器:
app.controller('keyCtrl', ['$scope', function($scope) {
var key = this;
key.callFunc = function() {
key.value = key.selectedPos;
console.log(key.selectedPos)
}
}]);
主要问题是为什么控制器中的key.selectedPos
仅在第二次点击时获得正确的值?
这是plunker复制我的问题。
答案 0 :(得分:2)
您可以在致电callFunc()
时发送参数。
在ctrl:key.callFunc = function(filterParams)
中更新您的func,也不要忘记更新传递的方法call-func="key.callFunc(filterParams)
在filter directive
中将您的getData方法更改为:
this.getData = function(val) {
$scope.callFunc({filterParams: val})
}
在positions directive
中传递您需要的值:
scope.posRegData = function() {
filterCtrl.getData({position: scope.selectedPos});
}
现在在您的keyCtrl
中,您可以获得价值:
key.callFunc = function(filterParams) {
key.value = filterParams.position;
console.log(filterPrams.position)
}
这是一个有效的plunker
答案 1 :(得分:0)
您可以在$ rootScope上使用$ broadcast
控制器中的执行:
switch( rand() % 5 )
{
case 0:
strcpy( size, "XS" );
break;
case 1:
strcpy( size, "S" );
break;
// add code for remaining cases
}
然后在你的目标控制器中有一个监听器:
$rootScope.$broadcast('myEvent', $scope.selectedPos);
答案 2 :(得分:0)
正如所建议的那样,我认为孤立的范围有效:
app.directive('positions', function(){
return {
require: '^filter',
scope : {
selectedPos: '='
},
template:
'<button dropdown>' +
' {{selectedPos}}' +
' <ul class="dropdown-menu">' +
' <li ng-repeat="pos in positions">' +
' <a href="#" ng-click="setPosition(pos)">{{pos.name}}</a></a>' +
' </li>' +
' </ul>' +
'</button>',
controller: function($scope, $element, $attrs){
$scope.setPosition = function(pos){
$scope.selectedPos = pos.name;
};
$scope.positions = [
{name: '1'},
{name: '2'},
{name: '3'}
];
$scope.selectedPos = $scope.positions[0].name;
}
}
});