使用来自 ngInfiniteScroll 网站的“加载远程数据”示例,我尝试实现无限滚动。我的问题;
该函数nextPage()
被连续调用,直到没有更多的记录要加载(由 SQL 查询中的偏移值控制)。
我很感激对此的任何意见,因为我很迷茫。
提前致谢。
HTML
<tbody>
<div id="infinite_scroll" infinite-scroll='visits.nextPage()' infinite-scroll-disabled='visits.busy' infinite-scroll-distance='1'>
<tr ng-repeat="visit in visits.items" ng-class="{active: visit.uuid == data.detailItem.uuid}" ng-click="openDetailItem(visit.uuid)">
<td>{{visit.details.name}}</td>
<td>{{visit.created_at}}</td>
</tr>
</div>
</tbody>
Javascript - AngularJs 工厂
angular.module('app').factory('Visits', function(VisitResource) {
// new visits object
var Visits = function () {
this.items = [];
this.busy = false;
this.offset = 0;
};
Visits.prototype.nextPage = function () {
// busy - stop
if (this.busy == true) {
// DEBUG
console.log('busy test 1.1: ' + this.busy);
return;
} else {
// DEBUG
console.log('busy test 1.2: ' + this.busy);
}
// busy now
this.busy = true;
VisitResource.getVisitations({
limit: 500,
offset: this.offset
}, function (response) {
// stop loading if no data returned
if(response.data.length == 0) {
// DEBUG
console.log('busy test 2: ' + this.busy);
return;
} else {
// DEBUG
console.log('Payload: ' + response.data.length);
}
var _this = this;
angular.forEach(response.data, function (a_visit) {
_this.items.push(a_visit);
});
// set the last acquired record value
this.offset = this.items[this.items.length - 1].id;
// not busy
this.busy = false;
}.bind(this));
};
return Visits;
});