[コミュニティ管理] のインサイトへのカスタムアクションの作成

1public with sharing class DeleteAllActivityControllerExtension {
2
3    private List<Id> ids;
4    private String retURL;
5    private Database.DeleteResult[] deleteResult = null;
6    private Map<String, String> resultMap;
7    private String success = 'success';
8    private String failure = 'failure';
9    
10    public DeleteAllActivityControllerExtension(ApexPages.StandardController controller) {
11        resultMap = new Map<String, String>();
12        /* The IDs you select on the Insights page are stored in a comma separated string of IDs. 
13        This string is passed in a parameter called "idsList" */
14        String idsList = ApexPages.currentPage().getParameters().get('idsList'); 
15        //The return URL to the Insights page is passed in a parameter called "retURL"
16        retURL = ApexPages.currentPage().getParameters().get('retURL');
17        ids = idsList.split(',');
18    }
19    
20    public PageReference deleteAllActivity() {
21        deleteFeedPosts();
22        deleteFeedComments();
23        //Include these two lines of code to be redirected to the Insights page after you click the action.
24        PageReference retPage = new PageReference(retURL);
25        retPage.setRedirect(true);
26        Integer failureCount = calculateFailureCount();
27        Integer successCount = ids.size() - failureCount;
28        retPage.getParameters().put(success, String.valueOf(successCount));
29        retPage.getParameters().put(failure, String.valueOf(failureCount));
30        return retPage;
31   }
32   
33   private void deleteFeedPosts() {
34        List<FeedItem> feedItems = [Select Id, CreatedById FROM FeedItem WHERE CreatedById IN :ids];
35        deleteResult = Database.delete(feedItems, false);
36        //Update the resultMap with failures to calculate the failureCount
37        if(deleteResult != null) {
38            for(Integer i=0;i < deleteResult.size();i++) {
39                if (!deleteResult.get(i).isSuccess()) {
40                    for(Database.Error error : deleteResult.get(i).getErrors()) {
41                        resultMap.put(string.valueOf(feedItems.get(i).CreatedById), failure);
42                    }
43                }
44            }
45        }
46   }
47   
48   private void deleteFeedComments() {
49        List<FeedComment> feedComments = [Select Id, CreatedById FROM FeedComment WHERE CreatedById IN :ids];
50        deleteResult = Database.delete(feedComments, false);
51        //Update the resultMap with failures to calculate the failureCount
52        if(deleteResult != null) {
53            for(Integer i=0;i < deleteResult.size();i++) {
54                if (!deleteResult.get(i).isSuccess()) {
55                    for(Database.Error error : deleteResult.get(i).getErrors()) {
56                        resultMap.put(string.valueOf(feedComments.get(i).CreatedById), failure);
57                    }
58                }
59            }
60        }
61   }
62   
63   private Integer calculateFailureCount() {
64       Integer failureCount = 0;
65       for (String result : resultMap.values()) {
66            if (failure == result) {
67                failureCount++;
68            }
69        }
70        return failureCount;
71   }
72   
73}