How to reset $stateparam parameter value to null in angularjs? - angularjs

Question

This is my code.
.state('appSetting.studentList', { url: '/student', views: { 'list#appSetting': { templateUrl: appUrl + '/Student/List', controller: 'StudentCtrl' } } })
.state('appSetting.studentList.details', { url: '/:studentId', views: { 'details#appSetting': { templateUrl: appUrl + '/Student/Edit', controller: 'StudentEditCtrl' } } })
.state('appSetting.employeeList', { url: '/employee', views: { 'list#appSetting': { templateUrl: appUrl + '/Employee/List', controller: 'EmployeeCtrl' } } })
.state('appSetting.employeeList.details', { url: '/:employeeId', views: { 'details#appSetting': { templateUrl: appUrl + '/Employee/Edit', controller: 'EmployeeEditCtrl' } } })
I have a add button on layout , when user click the add button call the following function.
$scope.gotoAdd = function () {
if ($state.current.name.indexOf(".details") == -1) {
$state.go($state.current.name + ".details")
}
else {
var paramId = $state.current.url.slice(2);
$state.go($state.current.name, ({ studentId: "", reload: true }));
}
};
In the above code working fine, but when open employee page user click add button i want to empty of employeeId parameter. I have number of links so if condition is using lengthy process. The above variable paramId dynamically changed (one time "studentId" , "employeeId" ,..............) depends on current state.
I tried the following code but not working because paramId contains string value
$state.go($state.current.name, ({ paramId: "", reload: true }));

Answer 1

Why are you putting the second parameter in '( )' in $state.go().
Try
$state.go($state.current.next, {}, {reload: true});
or
$state.go($state.current.next, {paramId: ""}, {reload: true});

Answer 2

$scope.gotoAdd = function () {
if ($state.current.name.indexOf(".details") == -1) {
$state.go($state.current.name + ".details")
}
else {
for (var prop in $stateParams) {
if ($stateParams.hasOwnProperty(prop)) {
$stateParams[prop] = '';
}
}
$state.go($state.current.name,$stateParams, { reload: true });
}
};

Answer 3

$state.go can take an inherit boolean parameter that serve exactly for this purpose.
As of UI router 0.2.15 -probably an old version, the documentation states
inherit - {boolean=true}, If true will inherit url parameters from current url.
In fact, it reset not only url parameters, but all $stateParams to their default, like what they are in state definition.
This will keep only state params as passed through the params object and all other are set to default or deleted.
$state.go('target.state', params, {inherit: false});