我有以下服务器代码：
Meteor.startup(function () {
Meteor.publish("AllMessages",function() {
lists._ensureIndex( { location : "2d" } );
return lists.find();
});
});
Meteor.methods({
getListsWithinBounds: function(bounds) {
lists._ensureIndex( { location : "2d" } );
return lists.find( { "location": { "$within": { "$Box": [ [bounds.bottomLeftLng,bounds.bottomLeftLat],[bounds.topRightLng,bounds.topRightLat] ] } } } );
}
});
和这个客户端代码：
Meteor.startup(function () {
map = L.map('map_canvas').locate({setView: true,maxZoom: 21});
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png',{
attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors'
}).addTo(map);
bounds = {};
map.on('locationfound',function(e){
bounds.bottomLeftLat = map.getBounds()._southWest.lat;
bounds.bottomLeftLng = map.getBounds()._southWest.lng;
bounds.topRightLat = map.getBounds()._northEast.lat;
bounds.topRightLng = map.getBounds()._northEast.lng;
console.log(bounds);
Meteor.call("getListsWithinBounds",bounds,function(err,result) {
console.log('call'+result); // should log a LocalCursor pointing to the relevant lists
});
});
});
我上了我的服务器日志：
Internal exception while processing message { msg: 'method',method: 'getListsWithinBounds',params:
[ { bottomLeftLat: 50.05008477838258,bottomLeftLng: 0.384521484375,topRightLat: 51.63847621195153,topRightLng: 8.3221435546875 } ],id: '2' } undefined
但我不知道为什么……
解决方法
您无法返回Collection游标 – 它无法转换为EJSON对象.将查询结果作为数组返回.
例如
return Lists.find(...).fetch();