Feature: Newsarchive und Kalender inkl. Eintraege kopieren und Referenzen aktualisieren

composer.json

@@ -3,6 +3,24 @@
   "description": "Contao backend module to clone dummy pages, content elements, modules and rewire references.",
   "type": "contao-bundle",
   "license": "proprietary",
+  "keywords": [
+    "contao",
+    "contao-bundle",
+    "backend",
+    "dummy",
+    "migration",
+    "cloner"
+  ],
+  "homepage": "https://git.file-archive.de/webfarben/DummyCopier",
+  "support": {
+    "source": "https://git.file-archive.de/webfarben/DummyCopier",
+    "issues": "https://git.file-archive.de/webfarben/DummyCopier/issues"
+  },
+  "authors": [
+    {
+      "name": "Webfarben"
+    }
+  ],
   "require": {
     "php": "^8.1",
     "contao/core-bundle": "^4.13 || ^5.0",

contao/config/config.php

@@ -2,5 +2,5 @@
 
 $GLOBALS['BE_MOD']['system']['dummy_copier'] = [
     'callback' => Webfarben\DummyCopier\Backend\DummyCopierModule::class,
-    'icon' => 'bundles/acmedummycopier/icon.svg',
+    'icon' => 'bundles/dummycopier/icon.svg',
 ];

contao/templates/be_dummy_copier.html5

@@ -55,7 +55,47 @@
 
     <!-- Abschnitt 3: Quell-Verzeichnisse -->
     <div class="dc-section">
-      <h3>3. Quell-Verzeichnisse auswaehlen (optional)</h3>
+      <h3>3. Newsarchive auswaehlen (optional)</h3>
+      <p class="dc-hint">Ausgewaehlte Newsarchive und ihre Newsbeitraege werden kopiert.</p>
+      <p>
+        <label>Newsarchive (Mehrfachauswahl):<br>
+          <input class="dc-filter" type="text" data-filter-for="sourceNewsArchives" placeholder="Newsarchive filtern...">
+          <span class="dc-tools">
+            <button class="dc-button" type="button" data-select-all="sourceNewsArchives">Alle</button>
+            <button class="dc-button" type="button" data-select-none="sourceNewsArchives">Keine</button>
+          </span>
+          <select id="sourceNewsArchives" name="sourceNewsArchives[]" multiple size="8" style="width:100%;">
+            <?php foreach (($this->newsArchiveChoices ?? []) as $id => $label): ?>
+              <option value="<?= (int) $id; ?>" <?= in_array((int) $id, ($this->selected['sourceNewsArchives'] ?? []), true) ? 'selected' : ''; ?>><?= htmlspecialchars((string) $label, ENT_QUOTES, 'UTF-8'); ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
+      </p>
+    </div>
+
+    <!-- Abschnitt 4: Kalender -->
+    <div class="dc-section">
+      <h3>4. Kalender auswaehlen (optional)</h3>
+      <p class="dc-hint">Ausgewaehlte Kalender und ihre Events werden kopiert.</p>
+      <p>
+        <label>Kalender (Mehrfachauswahl):<br>
+          <input class="dc-filter" type="text" data-filter-for="sourceCalendars" placeholder="Kalender filtern...">
+          <span class="dc-tools">
+            <button class="dc-button" type="button" data-select-all="sourceCalendars">Alle</button>
+            <button class="dc-button" type="button" data-select-none="sourceCalendars">Keine</button>
+          </span>
+          <select id="sourceCalendars" name="sourceCalendars[]" multiple size="8" style="width:100%;">
+            <?php foreach (($this->calendarChoices ?? []) as $id => $label): ?>
+              <option value="<?= (int) $id; ?>" <?= in_array((int) $id, ($this->selected['sourceCalendars'] ?? []), true) ? 'selected' : ''; ?>><?= htmlspecialchars((string) $label, ENT_QUOTES, 'UTF-8'); ?></option>
+            <?php endforeach; ?>
+          </select>
+        </label>
+      </p>
+    </div>
+
+    <!-- Abschnitt 5: Quell-Verzeichnisse -->
+    <div class="dc-section">
+      <h3>5. Quell-Verzeichnisse auswaehlen (optional)</h3>
       <p class="dc-hint">Optionale Dateiverzeichnisse, die gespiegelt werden sollen.</p>
       <p>
         <label>Verzeichnisse (Mehrfachauswahl):<br>
@@ -75,7 +115,7 @@
 
     <!-- Abschnitt 4: Kopieroptionen -->
     <div class="dc-section">
-      <h3>4. Kopieroptionen</h3>
+      <h3>6. Kopieroptionen</h3>
       <p><label><input type="checkbox" name="includeContent" value="1" <?= ($this->selected['includeContent'] ?? true) ? 'checked' : ''; ?>> Artikel &amp; Inhaltselemente der Seiten mitkopieren</label></p>
       <p><label><input type="checkbox" name="copyModules" value="1" <?= ($this->selected['copyModules'] ?? true) ? 'checked' : ''; ?>> Module kopieren und in den kopierten Seiten neu verlinken</label></p>
       <p><label><input type="checkbox" name="copyDirectories" value="1" <?= ($this->selected['copyDirectories'] ?? false) ? 'checked' : ''; ?>> Ausgewaehlte Verzeichnisse in Ziel-Verzeichnis kopieren</label></p>
@@ -84,7 +124,7 @@
 
     <!-- Abschnitt 5: Ziel -->
     <div class="dc-section">
-      <h3>5. Ziel &amp; Benennung</h3>
+      <h3>7. Ziel &amp; Benennung</h3>
       <p>
         <label>Ziel-Elternseite (Pflichtfeld):<br>
           <select name="targetParentPage" required style="width:100%;">
@@ -115,9 +155,15 @@
           'copiedPages'       => $this->result->copiedPages,
           'copiedModules'     => $this->result->copiedModules,
           'copiedContent'     => $this->result->copiedContent,
+          'copiedNewsArchives'=> $this->result->copiedNewsArchives,
+          'copiedNewsItems'   => $this->result->copiedNewsItems,
+          'copiedCalendars'   => $this->result->copiedCalendars,
+          'copiedEvents'      => $this->result->copiedEvents,
           'copiedDirectories' => $this->result->copiedDirectories,
           'pageMap'           => $this->result->pageMap,
           'moduleMap'         => $this->result->moduleMap,
+          'newsArchiveMap'    => $this->result->newsArchiveMap,
+          'calendarMap'       => $this->result->calendarMap,
           'notes'             => $this->result->notes,
       ], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES), ENT_QUOTES, 'UTF-8'); ?></pre>
     <?php endif; ?>

src/Backend/DummyCopierModule.php

@@ -28,6 +28,8 @@ class DummyCopierModule extends BackendModule
         $this->Template->requestToken = $this->getCsrfToken();
         $this->Template->pageChoices = $this->getPageChoices($connection);
         $this->Template->moduleChoices = $this->getModuleChoices($connection);
+        $this->Template->newsArchiveChoices = $this->getNewsArchiveChoices($connection);
+        $this->Template->calendarChoices = $this->getCalendarChoices($connection);
         $this->Template->directoryChoices = $this->getDirectoryChoices();
 
         $targetParentPageId = $this->parseSingleIdInput(Input::postRaw('targetParentPage'));
@@ -36,6 +38,8 @@ class DummyCopierModule extends BackendModule
         $this->Template->selected = [
             'sourcePages' => $this->parseIdInput(Input::postRaw('sourcePages')),
             'sourceModules' => $this->parseIdInput(Input::postRaw('sourceModules')),
+            'sourceNewsArchives' => $this->parseIdInput(Input::postRaw('sourceNewsArchives')),
+            'sourceCalendars' => $this->parseIdInput(Input::postRaw('sourceCalendars')),
             'sourceDirectories' => $this->parsePathInput(Input::postRaw('sourceDirectories')),
             'targetParentPage' => $targetParentPageId,
             'targetDirectory' => trim((string) Input::post('targetDirectory')),
@@ -53,6 +57,8 @@ class DummyCopierModule extends BackendModule
         $options = new DummyCopyOptions(
             $this->parseIdInput(Input::postRaw('sourcePages')),
             $this->parseIdInput(Input::postRaw('sourceModules')),
+            $this->parseIdInput(Input::postRaw('sourceNewsArchives')),
+            $this->parseIdInput(Input::postRaw('sourceCalendars')),
             [],
             $this->parsePathInput(Input::postRaw('sourceDirectories')),
             $targetParentPageId,
@@ -74,10 +80,14 @@ class DummyCopierModule extends BackendModule
             $result = $copier->execute($options);
 
             Message::addConfirmation(sprintf(
-                'Fertig. Seiten: %d, Module: %d, Content: %d, Verzeichnisse: %d',
+                'Fertig. Seiten: %d, Module: %d, Content: %d, Newsarchive: %d, Newsbeitraege: %d, Kalender: %d, Events: %d, Verzeichnisse: %d',
                 $result->copiedPages,
                 $result->copiedModules,
                 $result->copiedContent,
+                $result->copiedNewsArchives,
+                $result->copiedNewsItems,
+                $result->copiedCalendars,
+                $result->copiedEvents,
                 $result->copiedDirectories
             ));
 
@@ -285,6 +295,50 @@ class DummyCopierModule extends BackendModule
         return $choices;
     }
 
+    /**
+     * @return array<int,string>
+     */
+    private function getNewsArchiveChoices(Connection $connection): array
+    {
+        $rows = $connection->fetchAllAssociative('SELECT id, title FROM tl_news_archive ORDER BY title');
+        $choices = [];
+
+        foreach ($rows as $row) {
+            $id = (int) ($row['id'] ?? 0);
+
+            if ($id < 1) {
+                continue;
+            }
+
+            $title = trim((string) ($row['title'] ?? ''));
+            $choices[$id] = sprintf('%s [ID %d]', $title !== '' ? $title : ('Newsarchiv ' . $id), $id);
+        }
+
+        return $choices;
+    }
+
+    /**
+     * @return array<int,string>
+     */
+    private function getCalendarChoices(Connection $connection): array
+    {
+        $rows = $connection->fetchAllAssociative('SELECT id, title FROM tl_calendar ORDER BY title');
+        $choices = [];
+
+        foreach ($rows as $row) {
+            $id = (int) ($row['id'] ?? 0);
+
+            if ($id < 1) {
+                continue;
+            }
+
+            $title = trim((string) ($row['title'] ?? ''));
+            $choices[$id] = sprintf('%s [ID %d]', $title !== '' ? $title : ('Kalender ' . $id), $id);
+        }
+
+        return $choices;
+    }
+
     private function normalizeHeadline($headline): string
     {
         if (\is_string($headline)) {

src/Service/DummyCopier.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace Webfarben\DummyCopier\Service;
 
+use Contao\StringUtil;
 use Doctrine\DBAL\Connection;
 use Symfony\Component\Filesystem\Filesystem;
 
@@ -29,6 +30,10 @@ final class DummyCopier
             $result->copiedModules = $options->copyModules ? $this->countRows('tl_module', $options->sourceModuleIds) : 0;
             $result->copiedContent = $this->estimateContentCount($options);
             $result->copiedDirectories = $options->copyDirectories ? \count($options->sourceDirectories) : 0;
+            $result->copiedNewsArchives = $this->countRows('tl_news_archive', $options->sourceNewsArchiveIds);
+            $result->copiedNewsItems = $this->countByPid('tl_news', 'pid', $options->sourceNewsArchiveIds);
+            $result->copiedCalendars = $this->countRows('tl_calendar', $options->sourceCalendarIds);
+            $result->copiedEvents = $this->countByPid('tl_calendar_events', 'pid', $options->sourceCalendarIds);
             $result->addNote('Dry-Run aktiv: Es wurden keine Daten geschrieben.');
 
             return $result;
@@ -49,6 +54,14 @@ final class DummyCopier
                 }
             }
 
+            if ($options->sourceNewsArchiveIds !== []) {
+                $result->newsArchiveMap = $this->copyNewsArchives($options->sourceNewsArchiveIds, $options->namePrefix, $result);
+            }
+
+            if ($options->sourceCalendarIds !== []) {
+                $result->calendarMap = $this->copyCalendars($options->sourceCalendarIds, $options->namePrefix, $result);
+            }
+
             if ($options->targetArticleId > 0) {
                 foreach ($options->sourceContentIds as $sourceContentId) {
                     $this->copySingleContent($sourceContentId, $options->targetArticleId, $result->moduleMap, $result);
@@ -57,6 +70,10 @@ final class DummyCopier
 
             $this->rewriteReferences($result);
 
+            if ($options->copyModules) {
+                $this->rewriteModuleArchiveReferences($result);
+            }
+
             if ($options->copyDirectories) {
                 $this->copyDirectories($options, $result);
             }
@@ -149,11 +166,25 @@ final class DummyCopier
 
             $newArticleId = $this->insertRow('tl_article', $articleRow);
 
-            $contentIds = $this->connection->fetchFirstColumn('SELECT id FROM tl_content WHERE ptable = ? AND pid = ? ORDER BY sorting', ['tl_article', (int) $articleId]);
+            $this->copyArticleContentTree((int) $articleId, $newArticleId, $moduleMap, $result);
+        }
+    }
 
-            foreach ($contentIds as $contentId) {
+    /**
-                $this->copySingleContent((int) $contentId, $newArticleId, $moduleMap, $result);
+     * Copies top-level article content and all nested child elements recursively.
-            }
+     *
+     * @param array<int,int> $moduleMap
+     */
+    private function copyArticleContentTree(int $sourceArticleId, int $targetArticleId, array $moduleMap, DummyCopyResult $result): void
+    {
+        $visited = [];
+        $contentIds = $this->connection->fetchFirstColumn(
+            'SELECT id FROM tl_content WHERE ptable = ? AND pid = ? ORDER BY sorting',
+            ['tl_article', $sourceArticleId]
+        );
+
+        foreach ($contentIds as $contentId) {
+            $this->copyContentRecursive((int) $contentId, 'tl_article', $targetArticleId, $moduleMap, $result, $visited);
         }
     }
 
@@ -162,18 +193,34 @@ final class DummyCopier
      */
     private function copySingleContent(int $sourceContentId, int $targetArticleId, array $moduleMap, DummyCopyResult $result): void
     {
+        $visited = [];
+        $this->copyContentRecursive($sourceContentId, 'tl_article', $targetArticleId, $moduleMap, $result, $visited);
+    }
+
+    /**
+     * Recursively copies one content element and its children.
+     *
+     * @param array<int,int> $moduleMap
+     */
+    private function copyContentRecursive(int $sourceContentId, string $targetPtable, int $targetPid, array $moduleMap, DummyCopyResult $result, array &$visited): int
+    {
+        if (isset($visited[$sourceContentId])) {
+            return 0;
+        }
+
+        $visited[$sourceContentId] = true;
         $contentRow = $this->fetchRow('tl_content', $sourceContentId);
 
         if ($contentRow === null) {
             $result->addNote(sprintf('Content %d nicht gefunden, wurde uebersprungen.', $sourceContentId));
-            return;
+            return 0;
         }
 
         unset($contentRow['id']);
-        $contentRow['pid'] = $targetArticleId;
+        $contentRow['pid'] = $targetPid;
-        $contentRow['ptable'] = 'tl_article';
+        $contentRow['ptable'] = $targetPtable;
         $contentRow['tstamp'] = time();
-        $contentRow['sorting'] = $this->nextSorting('tl_content', 'pid', $targetArticleId, 'ptable', 'tl_article');
+        $contentRow['sorting'] = $this->nextSorting('tl_content', 'pid', $targetPid, 'ptable', $targetPtable);
 
         if (($contentRow['type'] ?? '') === 'module') {
             $oldModule = (int) ($contentRow['module'] ?? 0);
@@ -184,12 +231,24 @@ final class DummyCopier
         }
 
         $newContentId = $this->insertRow('tl_content', $contentRow);
+        $result->contentMap[$sourceContentId] = $newContentId;
         $result->copiedContent++;
         $result->copiedContentIds[] = $newContentId;
 
         if (isset($contentRow['jumpTo'], $result->pageMap[(int) $contentRow['jumpTo']])) {
             $this->connection->update('tl_content', ['jumpTo' => $result->pageMap[(int) $contentRow['jumpTo']]], ['id' => $newContentId]);
         }
+
+        $childIds = $this->connection->fetchFirstColumn(
+            'SELECT id FROM tl_content WHERE ptable = ? AND pid = ? ORDER BY sorting',
+            ['tl_content', $sourceContentId]
+        );
+
+        foreach ($childIds as $childId) {
+            $this->copyContentRecursive((int) $childId, 'tl_content', $newContentId, $moduleMap, $result, $visited);
+        }
+
+        return $newContentId;
     }
 
     private function rewriteReferences(DummyCopyResult $result): void
@@ -226,6 +285,183 @@ final class DummyCopier
                 $params
             );
         }
+
+        foreach ($result->contentMap as $oldContentId => $newContentId) {
+            $sourceAliasTarget = (int) $this->connection->fetchOne(
+                'SELECT cteAlias FROM tl_content WHERE id = ? AND type = ?',
+                [$oldContentId, 'alias']
+            );
+
+            if ($sourceAliasTarget < 1 || !isset($result->contentMap[$sourceAliasTarget])) {
+                continue;
+            }
+
+            $this->connection->update(
+                'tl_content',
+                ['cteAlias' => $result->contentMap[$sourceAliasTarget]],
+                ['id' => $newContentId, 'type' => 'alias']
+            );
+        }
+    }
+
+    private function rewriteModuleArchiveReferences(DummyCopyResult $result): void
+    {
+        if ($result->moduleMap === []) {
+            return;
+        }
+
+        foreach ($result->moduleMap as $newModuleId) {
+            $row = $this->fetchRow('tl_module', $newModuleId);
+
+            if ($row === null) {
+                continue;
+            }
+
+            $updates = [];
+
+            if (array_key_exists('news_archives', $row) && $result->newsArchiveMap !== []) {
+                $updates['news_archives'] = $this->remapSerializedIds((string) ($row['news_archives'] ?? ''), $result->newsArchiveMap);
+            }
+
+            if (array_key_exists('cal_calendar', $row) && $result->calendarMap !== []) {
+                $updates['cal_calendar'] = $this->remapSerializedIds((string) ($row['cal_calendar'] ?? ''), $result->calendarMap);
+            }
+
+            if ($updates !== []) {
+                $updates['tstamp'] = time();
+                $this->connection->update('tl_module', $updates, ['id' => $newModuleId]);
+            }
+        }
+    }
+
+    /**
+     * @param array<int> $sourceArchiveIds
+     *
+     * @return array<int,int>
+     */
+    private function copyNewsArchives(array $sourceArchiveIds, string $prefix, DummyCopyResult $result): array
+    {
+        $map = [];
+
+        foreach ($sourceArchiveIds as $sourceArchiveId) {
+            $archiveRow = $this->fetchRow('tl_news_archive', (int) $sourceArchiveId);
+
+            if ($archiveRow === null) {
+                $result->addNote(sprintf('Newsarchiv %d nicht gefunden, wurde uebersprungen.', $sourceArchiveId));
+                continue;
+            }
+
+            unset($archiveRow['id']);
+            $archiveRow['tstamp'] = time();
+
+            if (isset($archiveRow['title'])) {
+                $archiveRow['title'] = $this->prefixed((string) $archiveRow['title'], $prefix);
+            }
+
+            if (isset($archiveRow['jumpTo']) && isset($result->pageMap[(int) $archiveRow['jumpTo']])) {
+                $archiveRow['jumpTo'] = $result->pageMap[(int) $archiveRow['jumpTo']];
+            }
+
+            $newArchiveId = $this->insertRow('tl_news_archive', $archiveRow);
+            $map[(int) $sourceArchiveId] = $newArchiveId;
+            $result->copiedNewsArchives++;
+
+            $newsIds = $this->connection->fetchFirstColumn('SELECT id FROM tl_news WHERE pid = ? ORDER BY date, sorting, id', [(int) $sourceArchiveId]);
+
+            foreach ($newsIds as $newsId) {
+                $newsRow = $this->fetchRow('tl_news', (int) $newsId);
+
+                if ($newsRow === null) {
+                    continue;
+                }
+
+                unset($newsRow['id']);
+                $newsRow['pid'] = $newArchiveId;
+                $newsRow['tstamp'] = time();
+
+                if (isset($newsRow['headline'])) {
+                    $newsRow['headline'] = $this->prefixed((string) $newsRow['headline'], $prefix);
+                }
+
+                if (isset($newsRow['alias']) && trim((string) $newsRow['alias']) !== '') {
+                    $newsRow['alias'] = $this->makeUniqueAliasInTable('tl_news', $this->prefixed((string) $newsRow['alias'], $prefix));
+                }
+
+                if (isset($newsRow['jumpTo']) && isset($result->pageMap[(int) $newsRow['jumpTo']])) {
+                    $newsRow['jumpTo'] = $result->pageMap[(int) $newsRow['jumpTo']];
+                }
+
+                $this->insertRow('tl_news', $newsRow);
+                $result->copiedNewsItems++;
+            }
+        }
+
+        return $map;
+    }
+
+    /**
+     * @param array<int> $sourceCalendarIds
+     *
+     * @return array<int,int>
+     */
+    private function copyCalendars(array $sourceCalendarIds, string $prefix, DummyCopyResult $result): array
+    {
+        $map = [];
+
+        foreach ($sourceCalendarIds as $sourceCalendarId) {
+            $calendarRow = $this->fetchRow('tl_calendar', (int) $sourceCalendarId);
+
+            if ($calendarRow === null) {
+                $result->addNote(sprintf('Kalender %d nicht gefunden, wurde uebersprungen.', $sourceCalendarId));
+                continue;
+            }
+
+            unset($calendarRow['id']);
+            $calendarRow['tstamp'] = time();
+
+            if (isset($calendarRow['title'])) {
+                $calendarRow['title'] = $this->prefixed((string) $calendarRow['title'], $prefix);
+            }
+
+            if (isset($calendarRow['jumpTo']) && isset($result->pageMap[(int) $calendarRow['jumpTo']])) {
+                $calendarRow['jumpTo'] = $result->pageMap[(int) $calendarRow['jumpTo']];
+            }
+
+            $newCalendarId = $this->insertRow('tl_calendar', $calendarRow);
+            $map[(int) $sourceCalendarId] = $newCalendarId;
+            $result->copiedCalendars++;
+
+            $eventIds = $this->connection->fetchFirstColumn('SELECT id FROM tl_calendar_events WHERE pid = ? ORDER BY startTime, sorting, id', [(int) $sourceCalendarId]);
+
+            foreach ($eventIds as $eventId) {
+                $eventRow = $this->fetchRow('tl_calendar_events', (int) $eventId);
+
+                if ($eventRow === null) {
+                    continue;
+                }
+
+                unset($eventRow['id']);
+                $eventRow['pid'] = $newCalendarId;
+                $eventRow['tstamp'] = time();
+
+                if (isset($eventRow['title'])) {
+                    $eventRow['title'] = $this->prefixed((string) $eventRow['title'], $prefix);
+                }
+
+                if (isset($eventRow['alias']) && trim((string) $eventRow['alias']) !== '') {
+                    $eventRow['alias'] = $this->makeUniqueAliasInTable('tl_calendar_events', $this->prefixed((string) $eventRow['alias'], $prefix));
+                }
+
+                if (isset($eventRow['jumpTo']) && isset($result->pageMap[(int) $eventRow['jumpTo']])) {
+                    $eventRow['jumpTo'] = $result->pageMap[(int) $eventRow['jumpTo']];
+                }
+
+                $this->insertRow('tl_calendar_events', $eventRow);
+                $result->copiedEvents++;
+            }
+        }
+
+        return $map;
     }
 
     private function copyDirectories(DummyCopyOptions $options, DummyCopyResult $result): void
@@ -272,11 +508,16 @@ final class DummyCopier
     }
 
     private function makeUniqueAlias(string $baseAlias): string
+    {
+        return $this->makeUniqueAliasInTable('tl_page', $baseAlias);
+    }
+
+    private function makeUniqueAliasInTable(string $table, string $baseAlias): string
     {
         $alias = $this->slugify($baseAlias);
         $counter = 1;
 
-        while ((int) $this->connection->fetchOne('SELECT COUNT(*) FROM tl_page WHERE alias = ?', [$alias]) > 0) {
+        while ((int) $this->connection->fetchOne(sprintf('SELECT COUNT(*) FROM %s WHERE alias = ?', $table), [$alias]) > 0) {
             $alias = $this->slugify($baseAlias) . '-' . $counter;
             $counter++;
         }
@@ -326,9 +567,41 @@ final class DummyCopier
         return (int) $this->connection->fetchOne(sprintf('SELECT COUNT(*) FROM %s WHERE id IN (%s)', $table, $placeholders), $ids);
     }
 
+    private function countByPid(string $table, string $pidField, array $pidValues): int
+    {
+        if ($pidValues === []) {
+            return 0;
+        }
+
+        $placeholders = implode(',', array_fill(0, \count($pidValues), '?'));
+
+        return (int) $this->connection->fetchOne(sprintf('SELECT COUNT(*) FROM %s WHERE %s IN (%s)', $table, $pidField, $placeholders), $pidValues);
+    }
+
+    /**
+     * @param array<int,int> $idMap
+     */
+    private function remapSerializedIds(string $serialized, array $idMap): string
+    {
+        $values = StringUtil::deserialize($serialized, true);
+        $mapped = [];
+
+        foreach ($values as $value) {
+            $id = (int) $value;
+
+            if ($id < 1) {
+                continue;
+            }
+
+            $mapped[] = (string) ($idMap[$id] ?? $id);
+        }
+
+        return StringUtil::serialize($mapped);
+    }
+
     private function estimateContentCount(DummyCopyOptions $options): int
     {
-        $count = \count($options->sourceContentIds);
+        $count = $this->countContentTree(array_map('intval', $options->sourceContentIds));
 
         if (!$options->includeContent || $options->sourcePageIds === []) {
             return $count;
@@ -342,10 +615,55 @@ final class DummyCopier
         }
 
         $articlePlaceholders = implode(',', array_fill(0, \count($articleIds), '?'));
-
+        $rootContentIds = $this->connection->fetchFirstColumn(
-        return $count + (int) $this->connection->fetchOne(
+            sprintf('SELECT id FROM tl_content WHERE ptable = ? AND pid IN (%s)', $articlePlaceholders),
-            sprintf('SELECT COUNT(*) FROM tl_content WHERE ptable = ? AND pid IN (%s)', $articlePlaceholders),
             array_merge(['tl_article'], array_map('intval', $articleIds))
         );
+
+        if ($rootContentIds === []) {
+            return $count;
+        }
+
+        return $count + $this->countContentTree(array_map('intval', $rootContentIds));
+    }
+
+    /**
+     * Counts content roots and all nested descendants.
+     *
+     * @param array<int,int> $rootIds
+     */
+    private function countContentTree(array $rootIds): int
+    {
+        if ($rootIds === []) {
+            return 0;
+        }
+
+        $seen = [];
+        $queue = array_values(array_filter($rootIds, static fn (int $id): bool => $id > 0));
+
+        while ($queue !== []) {
+            $currentBatch = [];
+
+            foreach ($queue as $id) {
+                if (!isset($seen[$id])) {
+                    $seen[$id] = true;
+                    $currentBatch[] = $id;
+                }
+            }
+
+            if ($currentBatch === []) {
+                break;
+            }
+
+            $placeholders = implode(',', array_fill(0, \count($currentBatch), '?'));
+            $children = $this->connection->fetchFirstColumn(
+                sprintf('SELECT id FROM tl_content WHERE ptable = ? AND pid IN (%s)', $placeholders),
+                array_merge(['tl_content'], $currentBatch)
+            );
+
+            $queue = array_map('intval', $children);
+        }
+
+        return \count($seen);
     }
 }

src/Service/DummyCopyOptions.php

@@ -9,6 +9,8 @@ final class DummyCopyOptions
     public function __construct(
         public readonly array $sourcePageIds,
         public readonly array $sourceModuleIds,
+        public readonly array $sourceNewsArchiveIds,
+        public readonly array $sourceCalendarIds,
         public readonly array $sourceContentIds,
         public readonly array $sourceDirectories,
         public readonly int $targetParentPageId,

src/Service/DummyCopyResult.php

@@ -10,6 +10,10 @@ final class DummyCopyResult
     public int $copiedModules = 0;
     public int $copiedContent = 0;
     public int $copiedDirectories = 0;
+    public int $copiedNewsArchives = 0;
+    public int $copiedNewsItems = 0;
+    public int $copiedCalendars = 0;
+    public int $copiedEvents = 0;
 
     /** @var array<int,int> */
     public array $pageMap = [];
@@ -17,6 +21,15 @@ final class DummyCopyResult
     /** @var array<int,int> */
     public array $moduleMap = [];
 
+    /** @var array<int,int> */
+    public array $contentMap = [];
+
+    /** @var array<int,int> */
+    public array $newsArchiveMap = [];
+
+    /** @var array<int,int> */
+    public array $calendarMap = [];
+
     /** @var array<string> */
     public array $notes = [];