我正在尝试使用angular.js进行我的第一次尝试,并且我在恢复网站的正确内容方面遇到了问题。页面内容通过AJAX接收(现在来自静态数据,后者来自数据库)。当我在id =“content”的元素中放置带有指令ng-repeat的块时,一切正常。结果是:
ID:1姓名:Apple ID:2名称:Microsoft
但是如果我使用javascript和AJAX动态地将元素放在内容中,我就无法显示正确的数据。结果是:
ID:{{firm.id}}姓名:{{firm.name}}
我尝试使用setTimeout()进行后续调用$ apply(),但它没有帮助。我试图在网上找到一个解决方案,但我找不到类似的例子。有谁知道问题出在哪里?非常感谢你的帮助。
Html代码:
<div ng-app="myApp">
<div id="main_controler" ng-controller="mainController">
<button onclick="get_page('1')">Page one</button>
<button onclick="get_page('2')">Page two</button><br /><br /><br />
<div id="content">
<div ng-repeat="firm in data.firms" style="width:100%">
ID: {{firm.id}} Name: {{firm.name}}
</div>
</div>
</div>
</div>
JavaScript代码:
var app = angular.module('myApp', []);
app.controller('mainController', function($scope, $http) {
$scope.get = function(a_number) {
var p_url = 'ajax_fce.php?num=' + a_number;
$http({
method: 'JSON',
url: p_url
}).success(function(data, status) {
$scope.data = data;
}).error(function(data, status) {
alert('Error');
});
}
$scope.get(1);
});
get_template_1 = function() {
return '<div ng-repeat="firm in data.firms" style="width:100%">'+
'ID: {{firm.id}} Name: {{firm.name}}'+
'</div> ';
}
get_template_2 = function() {
return '<div ng-repeat="person in data.persons" style="width:100%">'+
'Name: {{person.name}} Surname: {{person.surname}}'+
'</div> ';
}
load_template = function(page_id) {
var p_template = '';
if(page_id == 1) { p_template = get_template_1(); }
if(page_id == 2) { p_template = get_template_2(); }
return p_template;
}
get_page = function(page_id) {
$('#content').html(load_template(page_id));
angular.element(document.getElementById('main_controler')).scope().get(page_id);
angular.element(document.getElementById('main_controler')).scope().$apply();
}
PHP代码(AJAX):
$p_return = '';
if ($_GET['num'] == '1') {
$p_return = ' { "firms": [ { "id": "1", "name": "Apple" },
{ "id": "2", "name": "Microsoft" } ]}'; }
else if ($_GET['num'] == '2') {
$p_return = ' { "persons": [ { "name": "Steve", "surname": "Jobs" },
{ "name": "Bill", "surname": "Gates" } ]}';
}
echo $p_return;
答案 0 :(得分:2)
这是因为get_page函数不编译模板。 最简单的方法(对我而言)是: HTML代码:
<div ng-app="myApp">
<div id="main_controler" ng-controller="mainController">
<button ng-click="get(1)">Page one</button>
<button ng-click="get(2)">Page two</button><br /><br /><br />
<div id="content">
<div ng-show="number==1" ng-repeat="firm in data.firms" style="width:100%">
ID: {{firm.id}} Name: {{firm.name}}
</div>
<div ng-show="number==2" ng-repeat="person in data.persons" style="width:100%">
Name: {{person.name}} Surname: {{person.surname}}
</div>
</div>
</div>
</div>
javascript代码:
var app = angular.module('myApp', []);
app.controller('mainController', function($scope, $http) {
$scope.number = 0;
$scope.get = function(a_number) {
$scope.number = a_number;
var p_url = 'ajax_fce.php?num=' + a_number;
$http({
method: 'JSON',
url: p_url
}).success(function(data, status) {
$scope.data = data;
}).error(function(data, status) {
alert('Error');
});
}
$scope.get(1);
});
答案 1 :(得分:0)
第一个答案有一个小缺点。公司和个人列表的Html代码仍保留在原始html中。最初的目的是动态插入它。我终于找到了一个解决方案:
Compiling dynamic HTML strings from database
我为我的情况实施它。我只将html的模板从javascript移动到服务器。 Server现在通过Ajax提供html。
这就是我现在需要的东西:
Html代码:
<body ng-app="app">
<h1>Compile dynamic HTML</h1>
<div ng-controller="MyController">
<button ng-click="get(1)">Page one</button>
<button ng-click="get(2)">Page two</button><br /><br /><br />
<!-- <textarea ng-model="html"></textarea> -->
<div dynamic="html"></div>
</div>
</body>
Javascript代码:
var app = angular.module('app', []);
app.directive('dynamic', function ($compile) {
return {
restrict: 'A',
replace: true,
link: function (scope, ele, attrs) {
scope.$watch(attrs.dynamic, function(html) {
ele.html(html);
$compile(ele.contents())(scope);
});
}
};
});
app.controller('MyController', function($scope, $http) {
$scope.get = function(a_number) {
var p_url = 'ajax_fce.php?num=' + a_number;
$http({
method: 'JSON',
url: p_url
}).success(function(data, status) {
$scope.html = data.template;
$scope.data = data.data;
}).error(function(data, status) {
alert('Error');
});
}
$scope.get(1);
});
PHP代码:
echo '{"template": "'.get_template($_GET['num']).'", '.
'"data": '.(get_data($_GET['num'])).'}';
function get_data($a_template) {
if ($_GET['num'] == '1') {
$p_result = '{ "firms": [ { "id": "1", "name": "Apple" },
{ "id": "2", "name": "Microsoft" } ]}';
} else if ($_GET['num'] == '2') {
$p_result = ' { "persons": [ { "name": "Steve", "surname": "Jobs" },
{ "name": "Bill", "surname": "Gates" } ]}';
}
return $p_result;
}
function get_template($a_template) {
if ($_GET['num'] == '1') {
$p_result = '<div ng-repeat=\"firm in data.firms\" style=\"width:100%\"> ID: '.
'{{firm.id}} Name: {{firm.name}}</div>';
} else if ($_GET['num'] == '2') {
$p_result = '<div ng-repeat=\"person in data.persons\" style=\"width:100%\"> Name: '.
'{{person.name}} Surname: {{person.surname}}</div>';
}
return $p_result;
}
我回答了我自己的问题,但我希望这个例子可以帮助别人并节省他一些时间。