Hook up the UpdateIssuesComment function to various actions

The UpdateIssuesComment function is now being called when:
- a pull request is merged, so the pull request title or description can
open/close issues
- a new pull request is created, so it can reference an issue from its
title or description
- a new issue is created, so it can reference an issue from its title or
description
- a pull request or issue title or description is updated
- a comment is created or updated, so it can reference an issue from its
title or description

models/action.go

@@ -805,6 +805,10 @@ func MergePullRequestAction(doer *User, repo *Repository, pull *Issue, commits *
 		log.Error(4, "UpdateIssuesCommit: %v", err)
 	}
 
+	if err := UpdateIssuesComment(doer, repo, pull, nil, true); err != nil {
+		log.Error(4, "UpdateIssuesCommit: %v", err)
+	}
+
 	if err := notifyWatchers(x, &Action{
 		ActUserID: doer.ID,
 		ActUser:   doer,
@@ -826,6 +830,10 @@ func NewPullRequestAction(doer *User, repo *Repository, pull *Issue, commits *Pu
 		log.Error(4, "UpdateIssuesCommit: %v", err)
 	}
 
+	if err := UpdateIssuesComment(doer, repo, pull, nil, false); err != nil {
+		log.Error(4, "UpdateIssuesCommit: %v", err)
+	}
+
 	if err := NotifyWatchers(&Action{
 		ActUserID: doer.ID,
 		ActUser:   doer,
@@ -849,6 +857,30 @@ func CommitPullRequestAction(doer *User, repo *Repository, commits *PushCommits)
 		log.Error(4, "UpdateIssuesCommit: %v", err)
 	}
 
+	// no action added
+
+	return nil
+}
+
+// CreateOrUpdateCommentAction adds new action when creating or updating a comment.
+func CreateOrUpdateCommentAction(doer *User, repo *Repository, issue *Issue, comment *Comment) error {
+	if err := UpdateIssuesComment(doer, repo, issue, comment, false); err != nil {
+		log.Error(4, "UpdateIssuesComment: %v", err)
+	}
+
+	// no action added
+
+	return nil
+}
+
+// CreateOrUpdateIssueAction adds new action when creating a new issue or pull request.
+func CreateOrUpdateIssueAction(doer *User, repo *Repository, issue *Issue) error {
+	if err := UpdateIssuesComment(doer, repo, issue, nil, false); err != nil {
+		log.Error(4, "UpdateIssuesComment: %v", err)
+	}
+
+	// no action added
+
 	return nil
 }
 

models/issue.go

@@ -802,6 +802,10 @@ func (issue *Issue) ChangeTitle(doer *User, title string) (err error) {
 		go HookQueue.Add(issue.RepoID)
 	}
 
+	if err = CreateOrUpdateIssueAction(doer, issue.Repo, issue); err != nil {
+		return fmt.Errorf("CreateOrUpdateIssueAction: %v", err)
+	}
+
 	return nil
 }
 
@@ -867,6 +871,10 @@ func (issue *Issue) ChangeContent(doer *User, content string) (err error) {
 		go HookQueue.Add(issue.RepoID)
 	}
 
+	if err = CreateOrUpdateIssueAction(doer, issue.Repo, issue); err != nil {
+		return fmt.Errorf("CreateOrUpdateIssueAction: %v", err)
+	}
+
 	return nil
 }
 
@@ -1037,6 +1045,10 @@ func NewIssue(repo *Repository, issue *Issue, labelIDs []int64, assigneeIDs []in
 
 	UpdateIssueIndexer(issue.ID)
 
+	if err = CreateOrUpdateIssueAction(issue.Poster, issue.Repo, issue); err != nil {
+		return fmt.Errorf("CreateOrUpdateIssueAction: %v", err)
+	}
+
 	if err = NotifyWatchers(&Action{
 		ActUserID: issue.Poster.ID,
 		ActUser:   issue.Poster,

models/issue_comment.go

@@ -590,6 +590,10 @@ func CreateComment(opts *CreateCommentOptions) (comment *Comment, err error) {
 
 	if opts.Type == CommentTypeComment {
 		UpdateIssueIndexer(opts.Issue.ID)
+
+		if err = CreateOrUpdateCommentAction(comment.Poster, opts.Repo, opts.Issue, comment); err != nil {
+			return nil, err
+		}
 	}
 	return comment, nil
 }
@@ -758,6 +762,15 @@ func UpdateComment(doer *User, c *Comment, oldContent string) error {
 		return err
 	} else if c.Type == CommentTypeComment {
 		UpdateIssueIndexer(c.IssueID)
+
+		issue, err := GetIssueByID(c.IssueID)
+		if err != nil {
+			return err
+		}
+
+		if err = CreateOrUpdateCommentAction(c.Poster, issue.Repo, issue, c); err != nil {
+			return err
+		}
 	}
 
 	if err := c.LoadIssue(); err != nil {