Page Access Counter and Last Viewed ?

Q - I have a VF page, how can I check how many users have viewed my page and who has viewed  last ?

Currently we don't have a standard functionality on Salesforce to get this. We can do this through Apex Controller and VF page.

We can create a field to save the number of time page accessed and a field to save the user who accessed  the page last.

Create custom fields in Account -

1. PageCount - Number Type
2. Last VIewed By - Text Type

Create a Controller - 

public class VFC_AccountPageViewCounter {

    public Account acc {get;set;}

    public User us {get;set;}

    public decimal count;

     

    public VFC_AccountPageViewCounter(ApexPages.StandardController controller){}

    

    public pagereference updateCount() {

        acc = [SELECT Id, bibhuotalightn__PageCount__c FROM Account Where Id =: ApexPages.currentPage().getParameters().get('Id')];

        us = [SELECT name from User where Id=:Userinfo.getUserId()];

        if(acc.bibhuotalightn__PageCount__c==null) {

            acc.bibhuotalightn__PageCount__c = 1;

            acc.bibhuotalightn__Last_Viewed_By__c = us.Name;            

        }

        else {

            acc.bibhuotalightn__PageCount__c += 1;

            acc.bibhuotalightn__Last_Viewed_By__c = us.Name;

        }

        update acc;

        return null;

    }

}

Create a VF Page-

Question - Why can't you write your logic inside Construcotr ? What is the need of a method again ?
Ans - As we can't write DML statement inside Constructor, we have to write a method for the logic to get the count and last viewed user details and can called the method on page load by using the page action attribute.