我已经完成了this issue，但是，我遇到了应用过滤器奇怪触发的问题。让我试着向你解释一下。第一个过滤请求如下：
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7 OPTIONS 200 xhr angular.js:11881 505 B 17 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7 GET 200 xhr Other 15.3 KB 92 ms
我们有选择权，而且我们已经获得，很好。接下来，我们应用第二个过滤器，请求如下：
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7 GET 200 xhr angular.js:11881 15.3 KB 94 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231 OPTIONS 200 xhr angular.js:11881 505 B 21 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231 GET 200 xhr Other 15.8 KB 48 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7 OPTIONS 200 xhr angular.js:11881 505 B 22 ms
由于某种原因，请求被解雇了两次。接下来，我们应用第三个过滤器，请求如下：
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231 OPTIONS 200 xhr angular.js:11881 505 B 18 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231;statusId==5 OPTIONS 200 xhr angular.js:11881 505 B 19 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231 GET 200 xhr Other 15.8 KB 43 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7;studyId==231;statusId==5 GET 200 xhr Other 1.1 KB 27 ms
?$orderby=id-&pageSize=25&pageNbr=1&$filter=eventTypeId==7 GET 200 xhr Other 15.3 KB 95 ms
我们可以看到请求再次触发两次，但在最后它只发送了一个额外的请求，只有第一个过滤器。
有人可以向我解释我的错误在哪里吗？提前致谢。 我的过滤器代码：
gridApi.core.on.filterChanged( $scope, function() {
// Declare vars
var grid = this.grid;
var columns = grid.columns;
$scope.columnTitle = grid.columns[1].filters[0].term;
$scope.columnDesc = grid.columns[2].filters[0].term;
var columnType = grid.columns[3].filters[0].term;
var columnStudy = grid.columns[4].filters[0].term;
var columnPriority = grid.columns[5].filters[0].term;
var columnSeverity = grid.columns[6].filters[0].term;
var columnStatus = grid.columns[7].filters[0].term;
var columnCreatedDate = grid.columns[8].filters[0].term;
var columnModifiedDate = grid.columns[9].filters[0].term;
// Create request for selectable filters
var query = [];
var string;
function request (id, param) {
if(param === "title==" || param === "description=="){
query.push(param + "*" + id + "*")
} else {
query.push(param + id);
}
if (query.length <= 1){
return query
} else {
string = query.join(";");
return string;
}
}
// Define behavior for cancel filtering
$scope.isfilterclear = true;
angular.forEach(columns, function( col ) {
if(col.filters[0].term){
$scope.isfilterclear = false;
}
});
if($scope.isfilterclear) {
$timeout(function() {
$rootScope.refresh()
},500);
}
// Filter behavior for columns
if($scope.columnTitle) {
$scope.$watch('columnTitle', function (newVal, oldVal) {
// filterOptions.filterParam = 'title==*' + newVal + "*";
filterOptions.filterParam = request(newVal, 'title==*');
}, true);
getData()
}
if($scope.columnDesc) {
$scope.$watch('columnDesc', function (newVal, oldVal) {
// filterOptions.filterParam = 'description==*' + newVal + "*";
filterOptions.filterParam = request(newVal, 'description==');
}, true);
getData()
}
if(columnType) {
filterOptions.filterParam = request(columnType, 'eventTypeId==');
getData();
}
if(columnStudy) {
filterOptions.filterParam = request(columnStudy, 'studyId==');
getData();
}
if(columnPriority) {
filterOptions.filterParam = request(columnPriority, 'priorityId==');
getData();
}
if(columnSeverity) {
filterOptions.filterParam = request(columnSeverity, 'severityId==');
getData();
}
if(columnStatus) {
filterOptions.filterParam = request(columnStatus, 'statusId==');
getData();
}
if(columnCreatedDate){
filterOptions.filterParam = request($rootScope.setFilterDate, 'occuredDate>=');
getData()
}
if(columnModifiedDate){
filterOptions.filterParam = request($rootScope.setFilterDate, 'occuredDate>=');
getData()
}
});
答案 0 :(得分：1)
您在每个列过滤器中调用getData()，这就是您的请求触发两次或更多次的原因。取出你的功能：
// Filter behavior for columns
if($scope.columnTitle) {
$scope.$watch('columnTitle', function (newVal, oldVal) {
filterOptions.filterParam = request(newVal, 'title==*');
}, true);
}
if($scope.columnDesc) {
$scope.$watch('columnDesc', function (newVal, oldVal) {
filterOptions.filterParam = request(newVal, 'description==');
}, true);
}
if(columnType) {
filterOptions.filterParam = request(columnType, 'eventTypeId==');
}
if(columnStudy) {
filterOptions.filterParam = request(columnStudy, 'studyId==');
}
if(columnPriority) {
filterOptions.filterParam = request(columnPriority, 'priorityId==');
}
if(columnSeverity) {
filterOptions.filterParam = request(columnSeverity, 'severityId==');
}
if(columnStatus) {
filterOptions.filterParam = request(columnStatus, 'statusId==');
}
if(columnCreatedDate){
filterOptions.filterParam = request($rootScope.setFilterDate, 'occuredDate>=');
}
if(columnModifiedDate){
filterOptions.filterParam = request($rootScope.setFilterDate, 'occuredDate>=');
}
getData();