Redmine

I have fixed this issue on my local redmine.

Add the following code after the 73 line of app/models/issue.rb

validate :closed_before_sub_issues

Add the closed_before_sub_issues method:

def closed_before_sub_issues
    closedIssueStatus = IssueStatus.find_by_is_closed true
    if closedIssueStatus && status_id == closedIssueStatus.id
      if descendants.any? { |childIssue| childIssue.status_id != closedIssueStatus.id}
        errors.add :status_id, :cant_close_before_sub_issues_closed
      end
    end
  end

Add error message in the en.yml:
cant_close_before_sub_issues_closed: can change the status to closed before the all the sub issue are not closed