// filter with data from database not working
app.filter('position', function($http, dbOperations) {
console.log(dbOperations.getAccessPosition());
var positions = []; //[{name:"cashier",id:1},{name:"operator",id:2}];
// get the object array from database with name and id
dbOperations.views("getPositions", "").then(function(res) {
positions = res; // this is the desired value: [{name:"cashier",id:1},{name:"operator",id:2}]
});
var poitionName = "";
return function(positionNum) {
positions.forEach(function(p) {
if (p.id == positionNum) {
poitionName = p.name;
return false;
}
});
return poitionName;
}
});
app.service('dbOperations', function($http) {
this.getAccessPosition = function() {
return $http({
method: "POST",
url: "/common/functions.php",
data: {
'process': "getAccessPosition",
'data': ""
}
}).then(function success(res) {
return res;
}, function myError(response) {
// console.log("Error");
});
}
});
当我在console.log的位置时,它打印出我需要的数据。但过滤器无法正常工作。也许是因为数据来自数据库而且还在等待回应。 dbOperations是服务中的,我使用$ http。 请帮我解决一下这个。谢谢。
答案 0 :(得分:0)
在服务中,只需返回http请求,而不是解开承诺。
app.service('dbOperations', function($http) {
this.getAccessPosition = function() {
return $http({
method: "POST",
url: "/common/functions.php",
data: {
'process': "getAccessPosition",
'data': ""
}
})
}
});
过滤器中的在回调函数内执行服务调用。
app.filter('position', function($http, dbOperations) {
console.log(dbOperations.getAccessPosition());
var positions = []; //[{name:"cashier",id:1},{name:"operator",id:2}];
var poitionName = "";
return function(positionNum) {
dbOperations.views("getPositions", "").then(function(res) {
positions = res.data;
positions.forEach(function(p) {
if (p.id == positionNum) {
poitionName = p.name;
return false;
}
});
return poitionName;
});
}
});