1 files changed, 44 insertions, 0 deletions
diff --git a/models/issue.go b/models/issue.go
index d97266b4ed..c89ffa7d0f 100644
--- a/models/issue.go
+++ b/models/issue.go
@@ -649,6 +649,20 @@ func (issue *Issue) changeStatus(e *xorm.Session, doer *User, repo *Repository,
 	if issue.IsClosed == isClosed {
 		return nil
 	}
+
+	// Check for open dependencies
+	if isClosed && issue.Repo.IsDependenciesEnabled() {
+		// only check if dependencies are enabled and we're about to close an issue, otherwise reopening an issue would fail when there are unsatisfied dependencies
+		noDeps, err := IssueNoDependenciesLeft(issue)
+		if err != nil {
+			return err
+		}
+
+		if !noDeps {
+			return ErrDependenciesLeft{issue.ID}
+		}
+	}
+
 	issue.IsClosed = isClosed
 	if isClosed {
 		issue.ClosedUnix = util.TimeStampNow()
@@ -1598,3 +1612,33 @@ func UpdateIssueDeadline(issue *Issue, deadlineUnix util.TimeStamp, doer *User)
 
 	return sess.Commit()
 }
+
+// Get Blocked By Dependencies, aka all issues this issue is blocked by.
+func (issue *Issue) getBlockedByDependencies(e Engine) (issueDeps []*Issue, err error) {
+	return issueDeps, e.
+		Table("issue_dependency").
+		Select("issue.*").
+		Join("INNER", "issue", "issue.id = issue_dependency.dependency_id").
+		Where("issue_id = ?", issue.ID).
+		Find(&issueDeps)
+}
+
+// Get Blocking Dependencies, aka all issues this issue blocks.
+func (issue *Issue) getBlockingDependencies(e Engine) (issueDeps []*Issue, err error) {
+	return issueDeps, e.
+		Table("issue_dependency").
+		Select("issue.*").
+		Join("INNER", "issue", "issue.id = issue_dependency.issue_id").
+		Where("dependency_id = ?", issue.ID).
+		Find(&issueDeps)
+}
+
+// BlockedByDependencies finds all Dependencies an issue is blocked by
+func (issue *Issue) BlockedByDependencies() ([]*Issue, error) {
+	return issue.getBlockedByDependencies(x)
+}
+
+// BlockingDependencies returns all blocking dependencies, aka all other issues a given issue blocks
+func (issue *Issue) BlockingDependencies() ([]*Issue, error) {
+	return issue.getBlockingDependencies(x)
+}