Define Action Behavior with Apex Controller Class and Methods

Define an Apex controller class and methods that generate a list of accounts shown in the table widget, create an opportunity for each account, and return the progress of each task.

1. From setup, enter Apex Classes in the Quick Find box.
2. Select Apex Classes.
3. Click New.
   
4. Add the following code.

   public class CreateOpportunitiesController {
       public string query{get; set;}
    
   /* To determine the records to perform the bulk action on, extract the SAQL query */
       public PageReference init() {
           query = ApexPages.currentPage().getParameters().get('query');
           return null;
       }
   
   /* Takes the account records from the SAQL query, creates an opportunity for each account, and then returns a map between account ID and new opportunity name. Note: Account.Name and AccountId referenced below refer to the dataset field names. Update them to match your dataset fields. */
       @RemoteAction
       public static Map<String, String> create(List <Map<String, String>> accountRecords) {
           Map<String, String> result = new Map<String, String>();
   
   
           List<Opportunity> opps = new List<Opportunity>();
           for (Map<String, String> accountRecord : accountRecords) {
           
               String name = accountRecord.get('Account.Name') + ' - Sprint Review - 12/2';
               String accountId = accountRecord.get('AccountId');
               result.put(accountId, name);
               Opportunity opp = new Opportunity(
   /* You can set different fields from the Opportunity object than those listed below, like Amount. */
                   Name = name,
                   Type ='New Customer',
                   AccountId = Id.valueOf(accountId),
                   CloseDate=Date.valueOf('2016-12-31'),
                   StageName='Prospecting'); 
               opps.add(opp);
           }
           insert opps;
           return result;
       }
   }

5. Click Save.