Ojs\JournalBundle\Entity\Issue::addIssueFile PHP Метод

    public function addIssueFile(IssueFile $issueFile)
    {
        if (!$this->issueFiles->contains($issueFile)) {
            $this->issueFiles->add($issueFile);
            $issueFile->setIssue($this);
        }
        return $this;
    }

 /**
  * Set issue
  *
  * @param Issue $issue
  * @return IssueFile
  */
 public function setIssue(Issue $issue)
 {
     $this->issue = $issue;
     $issue->addIssueFile($this);
     return $this;
 }