public class NPSSurveyController{

/*
    Property that will hold all the NPS Follow-Ups
    associated with the current NPS Follow-Up.

    This iterable list can be used in apex:repeat,
    apex:pageBlockTable etc to display all the
    details contained in each entity(Case)
    within the List.
  */
  public List<NPS_Follow_Up__c> RelatedFollowUps
  {
    get;
    set;
  }

  /*
    Private Property that will hold the details of the
    Visit Preparation in the current context.

    This is not needed on the VF Page and hence marked as
    Private.
  */
  private NPS_Survey__c CurrentNPSSurvey
  {
    get;
    set;
  }

  /*ctor*/
  public NPSSurveyController(
    ApexPages.StandardController controller
  ) {

    /*
      Get the Visit Preparation record in
      the current context
    */
    CurrentNPSSurvey =
      (NPS_Survey__c)controller.getRecord();


    fetchRelatedFollowUps();

  }



  /*
    Execute a SOQL and fetch the related
    Follow-Ups and save it to the List
  */

    private void fetchRelatedFollowUps(){
    RelatedFollowUps =
      [
        SELECT
          Id,
          Name,
          Case__c,
          Division__c,
          Contact_Name__c,
          Comment_Category__c,
          Email_Address__c,
          Follow_Up_Type__c,
          General_Comments__c,
          HOT__c,
          No_Answer__c,
          NPS_CUR__c,
          NPS_Survey__c,
          Opportunity__c,
          Phone_Number__c,
          Phone_Number_From_CUR__c,
          Phone_Type__c,
          Q1_Response__c,
          Q2_Response__c,
          Q3_Response__c,
          Requested_Contact_Time__c,
          Sales_Journal__c
        FROM
          NPS_Follow_Up__c
        WHERE
          NPS_Survey__c =
            :CurrentNPSSurvey.Id
      ];
  }
}