Newscoop\Service\Implementation\ThemeManagementServiceLocal::assignTheme PHP Method

    public function assignTheme(Theme $theme, Publication $publication, $cli = false)
    {
        Validation::notEmpty($theme, 'theme');
        Validation::notEmpty($publication, 'publication');
        // We have to check if there is no other theme by the new theme name.
        foreach ($this->getThemes($publication) as $th) {
            /* @var $th Theme */
            if (trim($th->getName()) === trim($theme->getName())) {
                if ($this->getThemePublication($th) != NULL) {
                    if ($cli) {
                        return false;
                    }
                    throw new DuplicateNameException();
                } else {
                    $thPath = $th->getPath();
                    $this->rrmdir($this->toFullPath($thPath));
                }
            }
        }
        $themeFolder = $this->getNewThemeFolder(self::FOLDER_PUBLICATION_PREFIX . $publication->getId() . '/');
        $themeFullFolder = $this->toFullPath($themeFolder);
        try {
            $this->copy($this->toFullPath($theme), $themeFullFolder);
            // Reset the theme configs cache so also the new theme will be avaialable
            $this->cacheThemeConfigs = NULL;
            // We need to persist the theme ouput setting for the new publication theme
            $em = $this->getManager();
            $pathRsc = $this->getSyncResourceService()->getThemePath($themeFolder);
            // Persist the coresponding ouput settings theme to the database
            $outSets = $this->loadOutputSettings($themeFolder);
            foreach ($outSets as $outSet) {
                /* @var $outSet OutputSettings */
                $qb = $em->createQueryBuilder();
                $qb->select('th')->from(OutputSettingsTheme::NAME, 'th');
                $qb->where('th.publication = :publication');
                $qb->andWhere('th.themePath = :themePath');
                $qb->andWhere('th.output = :output');
                $qb->setParameter('publication', $publication);
                $qb->setParameter('themePath', $pathRsc);
                $qb->setParameter('output', $outSet->getOutput());
                $result = $qb->getQuery()->getResult();
                if (count($result) > 0) {
                    $outTh = $result[0];
                } else {
                    $outTh = new OutputSettingsTheme();
                    $outTh->setPublication($publication);
                    $outTh->setThemePath($pathRsc);
                    $outTh->setOutput($outSet->getOutput());
                }
                $this->syncOutputSettings($outTh, $outSet);
                $issueOutSettings = $this->getOutputSettingIssueService();
                foreach ($issueOutSettings->getUnthemedIssues($publication) as $issue) {
                    $outIssueTh = new OutputSettingsIssue();
                    $outIssueTh->setIssue($issue);
                    $outIssueTh->setThemePath($pathRsc);
                    $outIssueTh->setOutput($outSet->getOutput());
                    $em->persist($outIssueTh);
                }
                $em->persist($outTh);
            }
            $em->flush();
        } catch (\Exception $e) {
            $this->rrmdir($themeFullFolder);
            throw $e;
        }
        return $this->loadThemeByPath($themeFolder);
    }