Skip to main content
R
remixed1231-Visitor
1-Visitor
June 18, 2018
Solved

How Can I Invalidate The List Widget Cache

  • June 18, 2018
  • 6 replies
  • 3178 views

I have 2 types of users

  • Managers - who can see all the data associated with any of their users Things
  • Users - who can only see the data associated to their Things

I have 2 mashups

  • Select User Mashup - this allows the Manager to select a User they want to see the data for
  • Display User Data Mashup - this is a separate Mashup that shows the data of the selected User

Managers can select to look at User data by selecting the user from a grid on the Select User Mashup. When a Manager does this, they will have a user property updated (that sets a Thing Name), so they can look at the data in the same way the user would. 

 

This is working well, except once a list widget is populated on the Display User Data Mashup, it does not get updated when I switch users. If I hit refresh on the browser the list widget content is updated to the appropriate user data. 

 

Is there anything I can do to invalidate the cache, so the correct data is displayed in the list widget?

Best answer by remixed123

The eventual solution was the access the user extension values problematically by creating a service, instead of passing the values using the Mashup. I did try using sessions and it had the exact same issue, you can also access these problematically to ensure the latest data is loaded. 

6 replies

M
mnarang5-Regular Member
5-Regular Member
June 19, 2018

Ideally this should not be the output .If you are running the service which is bringing up the data in the grid ,then ideally this service should be on event SelectedRowsChange of the service which is populating user's name in the drop down .So when ever the manager change the user name from the drop down the service which is bringing up the user data should be invoked and new data should be pumped in to the grid without even doing the refresh of mashup .I have a slimier setup as you are stating and it automatically updates the value in the grid after changing the Thingname in the drop down .

 

 

Thanks ,

Mukul Narang 

R
remixed1231-VisitorAuthor
1-Visitor
June 19, 2018

Thanks for the suggestion, I think you may have misunderstood my scenario.

 

It is the list widget (as a dropdown) which is not being refreshed and not the grid data. I call a dynamic service to populate this list widget, the input is a thing name "observationsThing" which is obtained from a user property. it is the content of the list widget that is being cached. 

 

Here is the code for the dynamic service

var params = {
 maxItems: 500 /* INFOTABLE */,
 startDate: undefined /* QUERY */,
 endDate : undefined,
 oldestFirst: false,
};

var result = Things[observationsThing].GetDataTableEntries(params);
 
var params = {
 t: result,
 columns: "session"
};

var result = Resources["InfoTableFunctions"].Distinct(params);
M
mnarang5-Regular Member
5-Regular Member
June 19, 2018

Will it be possible for you to attach mashup screenshot ? Specially the display user data mashup where the list (dropdown type) is getting updated only after a refresh ? And the display user data mashup is a mashup which opens up on a new window after selecting the user ? Or it is like a contained mashup ?

 

Thanks ,

Mukul Narang

 

Terms & ConditionsAccessibility statement