Index page: remove Mots-clés button, move export to bulk selection, fix ZipArchive error, move DB export to paramètres, sticky thead

- Remove 'Mots-clés' button from toolbar (redundant with admin sidebar tags)
- Replace export dialog with 'Exporter CSV' + 'Exporter fichiers' buttons in bulk selection bar
- Export dispatcher now accepts ?ids=1,2,3 for per-selection export
- All ExportController/Database methods accept optional thesisIds array
- Graceful error message when ZipArchive extension is missing on server
- Move DB export (SQLite download) to paramètres → Maintenance section
- Sticky table column headers (position: sticky, top: 0, z-index: 5) for index page table

app/public/admin/actions/export.php

@@ -21,6 +21,18 @@ $doCsv   = !empty($_GET['csv']);
 $doFiles = !empty($_GET['files']);
 $doDb    = !empty($_GET['db']);
 
+// Optional: filter by selected thesis IDs (bulk selection export)
+$idsRaw = $_GET['ids'] ?? '';
+$selectedIds = [];
+if ($idsRaw !== '') {
+    foreach (explode(',', $idsRaw) as $id) {
+        $id = (int) trim($id);
+        if ($id > 0) {
+            $selectedIds[] = $id;
+        }
+    }
+}
+
 if (!$doCsv && !$doFiles && !$doDb) {
     $doCsv = true;
 }
@@ -40,7 +52,7 @@ if ($doCsv) {
 
     $out = fopen('php://output', 'w');
     fputcsv($out, ExportController::CSV_HEADERS, ',', '"', '');
-    $rows = $controller->exportAllTheses();
+    $rows = $controller->exportAllTheses($selectedIds);
     foreach ($rows as $csvLine) {
         fputcsv($out, $csvLine, ',', '"', '');
     }
@@ -53,10 +65,14 @@ if ($doCsv) {
 }
 
 if ($doFiles) {
+    if (!class_exists('ZipArchive')) {
+        http_response_code(500);
+        exit('Module PHP <code>zip</code> non installé sur le serveur. Contactez l\'administrateur système (<code>apt install php8.4-zip</code>).');
+    }
     try {
-        $zipPath = $controller->createExportZip();
+        $zipPath = $controller->createExportZip($selectedIds);
         $fileSize = filesize($zipPath);
-        $fileCount = count($controller->getAllThesisFiles());
+        $fileCount = count($controller->getAllThesisFiles($selectedIds));
 
         AdminLogger::make()->logFilesExport($fileCount, (int)$fileSize);
 

app/public/assets/css/admin.css

@@ -74,6 +74,16 @@
     padding: 0 0 var(--space-2xl);
 }
 
+#admin-table-wrap table thead {
+    position: sticky;
+    top: 0;
+    z-index: 5;
+}
+
+#admin-table-wrap table thead th {
+    background: var(--bg-primary);
+}
+
 .admin-body main > table tbody tr:nth-child(even) {
     background: var(--bg-secondary);
 }

app/src/Controllers/ExportController.php

@@ -40,16 +40,17 @@ class ExportController
     // ── Files export ────────────────────────────────────────────────────
 
     /**
-     * Fetch all thesis file records with their thesis identifier.
+     * Fetch thesis file records with their thesis identifier.
      *
+     * @param int[] $thesisIds  Optional filter by thesis IDs.
      * @return list<array{id:int, thesis_id:int, identifier:?string, file_type:string,
      *                    file_path:string, file_name:string, file_size:?int,
      *                    mime_type:?string, description:?string, sort_order:int,
      *                    display_label:?string, file_hash:?string}>
      */
-    public function getAllThesisFiles(): array
+    public function getAllThesisFiles(array $thesisIds = []): array
     {
-        return $this->db->getAllThesisFilesForExport();
+        return $this->db->getAllThesisFilesForExport($thesisIds);
     }
 
     /**
@@ -58,12 +59,13 @@ class ExportController
      * The manifest maps identifier → { title, files: [{type, path, name, size, mime, hash, label}] }
      * and is used on restore to re-link files to DB records.
      *
+     * @param int[] $thesisIds  Optional filter by thesis IDs.
      * @return array
      */
-    public function buildExportManifest(): array
+    public function buildExportManifest(array $thesisIds = []): array
     {
-        $files   = $this->getAllThesisFiles();
-        $theses  = $this->db->getAllThesesForExport();
+        $files   = $this->getAllThesisFiles($thesisIds);
+        $theses  = $this->db->getAllThesesForExport($thesisIds);
 
         // Index theses by id for O(1) lookup
         $byId = [];
@@ -115,17 +117,18 @@ class ExportController
      * Returns the path to the temporary zip file. Caller is responsible
      * for unlink() after streaming.
      *
+     * @param  int[]   $thesisIds  Optional filter by thesis IDs.
      * @param  string|null $baseDir  Base directory path for files inside the zip.
      *                               Defaults to "files" (so files are at "files/theses/...").
      * @return string Absolute path to the generated zip file.
      * @throws Exception if zip creation fails.
      */
-    public function createExportZip(?string $baseDir = null): string
+    public function createExportZip(array $thesisIds = [], ?string $baseDir = null): string
     {
         $baseDir ??= 'files';
         $storageRoot = defined('STORAGE_ROOT') ? STORAGE_ROOT : APP_ROOT . '/storage';
-        $files = $this->getAllThesisFiles();
-        $manifest = $this->buildExportManifest();
+        $files = $this->getAllThesisFiles($thesisIds);
+        $manifest = $this->buildExportManifest($thesisIds);
 
         $tmpPath = tempnam(sys_get_temp_dir(), 'xamxam-export-');
         if ($tmpPath === false) {
@@ -214,12 +217,13 @@ class ExportController
      *
      * Uses batch queries (one per related table) to avoid N+1.
      *
+     * @param int[] $thesisIds  Optional filter by thesis IDs.
      * @return list<list<string>>   Each inner list has CSV_HEADERS_COUNT elements.
      */
-    public function exportAllTheses(): array
+    public function exportAllTheses(array $thesisIds = []): array
     {
         // 1) Base thesis data (includes license_name via migration; fallback to license_type from the view)
-        $theses = $this->db->getAllThesesForExport();
+        $theses = $this->db->getAllThesesForExport($thesisIds);
         if ($theses === []) {
             return [];
         }

app/src/Database.php

@@ -2540,9 +2540,12 @@ class Database
      * Fetch all theses (admin — includes unpublished) with every column
      * needed for the CSV export.
      */
-    public function getAllThesesForExport(): array
+    /**
+     * @param int[] $thesisIds  Optional filter by thesis IDs.
+     */
+    public function getAllThesesForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT
                 t.id, t.identifier, t.title, t.subtitle, t.year,
                 o.name       AS orientation,
@@ -2561,88 +2564,143 @@ class Database
             LEFT JOIN finality_types  ft ON t.finality_id     = ft.id
             LEFT JOIN access_types    at ON t.access_type_id  = at.id
             LEFT JOIN license_types   lt ON t.license_id      = lt.id
-            ORDER BY t.year DESC, t.title ASC
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE t.id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY t.year DESC, t.title ASC');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY t.year DESC, t.title ASC')->fetchAll();
     }
 
     /**
      * All thesis→author rows with author name and email.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisAuthorsForExport(): array
+    public function getAllThesisAuthorsForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT ta.thesis_id, a.name, a.email
             FROM thesis_authors ta
             JOIN authors a ON a.id = ta.author_id
-            ORDER BY ta.thesis_id, ta.author_order
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE ta.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY ta.thesis_id, ta.author_order');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY ta.thesis_id, ta.author_order')->fetchAll();
     }
 
     /**
      * All thesis→supervisor rows with name.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisSupervisorsForExport(): array
+    public function getAllThesisSupervisorsForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT ts.thesis_id, s.name, ts.role, ts.is_external, ts.is_ulb
             FROM thesis_supervisors ts
             JOIN supervisors s ON s.id = ts.supervisor_id
-            ORDER BY ts.thesis_id, ts.supervisor_order
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE ts.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY ts.thesis_id, ts.supervisor_order');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY ts.thesis_id, ts.supervisor_order')->fetchAll();
     }
 
     /**
      * All thesis→tag rows with tag name.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisTagsForExport(): array
+    public function getAllThesisTagsForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT tt.thesis_id, t.name
             FROM thesis_tags tt
             JOIN tags t ON t.id = tt.tag_id
-            ORDER BY tt.thesis_id, t.name
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE tt.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY tt.thesis_id, t.name');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY tt.thesis_id, t.name')->fetchAll();
     }
 
     /**
      * All thesis→language rows with language name.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisLanguagesForExport(): array
+    public function getAllThesisLanguagesForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT tl.thesis_id, l.name
             FROM thesis_languages tl
             JOIN languages l ON l.id = tl.language_id
-            ORDER BY tl.thesis_id, l.name
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE tl.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY tl.thesis_id, l.name');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY tl.thesis_id, l.name')->fetchAll();
     }
 
     /**
      * All thesis→format rows with format name.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisFormatsForExport(): array
+    public function getAllThesisFormatsForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT tf.thesis_id, ft.name
             FROM thesis_formats tf
             JOIN format_types ft ON ft.id = tf.format_id
-            ORDER BY tf.thesis_id, ft.name
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE tf.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY tf.thesis_id, ft.name');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY tf.thesis_id, ft.name')->fetchAll();
     }
 
     /**
      * All thesis files for the file-export ZIP.
      * Includes every thesis_files column + the thesis identifier for manifest
      * construction.
+     * @param int[] $thesisIds  Optional filter.
      */
-    public function getAllThesisFilesForExport(): array
+    public function getAllThesisFilesForExport(array $thesisIds = []): array
     {
-        return $this->pdo->query('
+        $sql = '
             SELECT tf.*, t.identifier
             FROM thesis_files tf
             JOIN theses t ON t.id = tf.thesis_id
-            ORDER BY t.year DESC, t.title ASC, tf.sort_order ASC
-        ')->fetchAll();
+        ';
+        if ($thesisIds) {
+            $placeholders = implode(',', array_fill(0, count($thesisIds), '?'));
+            $sql .= " WHERE tf.thesis_id IN ($placeholders)";
+            $stmt = $this->pdo->prepare($sql . ' ORDER BY t.year DESC, t.title ASC, tf.sort_order ASC');
+            $stmt->execute($thesisIds);
+            return $stmt->fetchAll();
+        }
+        return $this->pdo->query($sql . ' ORDER BY t.year DESC, t.title ASC, tf.sort_order ASC')->fetchAll();
     }
 
     // ========================================================================

app/templates/admin/index-table.php

@@ -31,6 +31,8 @@ $sortArrow = function(string $col) use ($sortCol, $sortDir): string {
     <div class="admin-bulk-btns">
         <button type="button" class="btn btn--sm btn--green admin-btn-publish" onclick="confirmBulk('publish')">Publier</button>
         <button type="button" class="btn btn--sm btn--muted admin-btn-unpublish" onclick="confirmBulk('unpublish')">Dépublier</button>
+        <button type="button" class="btn btn--sm" onclick="confirmExport()">Exporter CSV</button>
+        <button type="button" class="btn btn--sm" onclick="confirmExportFiles()">Exporter fichiers</button>
         <button type="button" class="btn btn--sm btn--red admin-btn-delete" onclick="confirmBulk('delete')">Supprimer</button>
     </div>
 </div>

app/templates/admin/index.php

@@ -1,8 +1,11 @@
 <script>
 function toggleAll(src){document.querySelectorAll('input[name="selected_theses[]"]').forEach(cb=>cb.checked=src.checked);updateBulk();}
 function updateBulk(){const n=document.querySelectorAll('input[name="selected_theses[]"]:checked').length;const b=document.getElementById('bulk-actions');document.getElementById('selected-count').textContent=n;b.style.display=n>0?'flex':'none';}
-function confirmBulk(act){const n=document.querySelectorAll('input[name="selected_theses[]"]:checked').length;if(!n){document.getElementById('no-selection-dialog').showModal();return;}document.getElementById('bulk-action-input').value=act;if(act==='delete'){document.getElementById('bulk-delete-count').textContent=n;document.getElementById('bulk-delete-dialog').showModal();}else{document.getElementById('bulk-confirm-word').textContent=act==='publish'?'Publier':'Dépublier';document.getElementById('bulk-confirm-count').textContent=n;document.getElementById('bulk-confirm-dialog').showModal();}}
-function execBulk(){const a=document.getElementById('bulk-action-input').value;const f=document.getElementById('bulk-form');f.action = a==='delete' ? 'actions/delete.php' : 'actions/publish.php';const c=document.getElementById('bulk-checkboxes');c.innerHTML='';document.querySelectorAll('input[name="selected_theses[]"]:checked').forEach(cb=>{const inp=document.createElement('input');inp.type='hidden';inp.name='selected_theses[]';inp.value=cb.value;c.appendChild(inp);});f.submit();}
+function getSelectedIds(){return Array.from(document.querySelectorAll('input[name="selected_theses[]"]:checked')).map(cb=>cb.value);}
+function confirmBulk(act){const ids=getSelectedIds();if(!ids.length){document.getElementById('no-selection-dialog').showModal();return;}const n=ids.length;document.getElementById('bulk-action-input').value=act;if(act==='delete'){document.getElementById('bulk-delete-count').textContent=n;document.getElementById('bulk-delete-dialog').showModal();}else{document.getElementById('bulk-confirm-word').textContent=act=='publish'?'Publier':'Dépublier';document.getElementById('bulk-confirm-count').textContent=n;document.getElementById('bulk-confirm-dialog').showModal();}}
+function execBulk(){const a=document.getElementById('bulk-action-input').value;const f=document.getElementById('bulk-form');f.action = a=='delete' ? 'actions/delete.php' : 'actions/publish.php';const c=document.getElementById('bulk-checkboxes');c.innerHTML='';getSelectedIds().forEach(id=>{const inp=document.createElement('input');inp.type='hidden';inp.name='selected_theses[]';inp.value=id;c.appendChild(inp);});f.submit();}
+function confirmExport(){const ids=getSelectedIds();if(!ids.length){document.getElementById('no-selection-dialog').showModal();return;}window.location.href='/admin/actions/export.php?csv=1&ids='+ids.join(',');}
+function confirmExportFiles(){const ids=getSelectedIds();if(!ids.length){document.getElementById('no-selection-dialog').showModal();return;}window.location.href='/admin/actions/export.php?files=1&ids='+ids.join(',');}
 function confirmDelete(id,title){document.getElementById('delete-thesis-title').textContent=title;document.getElementById('delete-thesis-dialog').showModal();document.getElementById('delete-dialog-confirm').onclick=function(){document.getElementById('delete-form-'+id).submit();};}
 document.addEventListener('DOMContentLoaded',()=>{document.querySelectorAll('input[name="selected_theses[]"]').forEach(cb=>cb.addEventListener('change',updateBulk));});
 document.addEventListener('htmx:afterSwap',()=>{document.querySelectorAll('input[name="selected_theses[]"]').forEach(cb=>cb.addEventListener('change',updateBulk));updateBulk();});
@@ -31,7 +34,6 @@ document.addEventListener('htmx:afterSwap',()=>{document.querySelectorAll('input
             </div>
             <div class="admin-btn-group">
                 <a href="/admin/add.php" class="btn btn--primary btn--sm">+ Ajouter un TFE</a>
-                <a href="/admin/tags.php" class="btn btn--primary btn--sm">Mots-clés</a>
                 <?php if ($trashCount > 0): ?>
                 <a href="/admin/index.php?tab=trash" class="btn btn--sm <?= $tab === 'trash' ? 'btn--primary' : 'btn--secondary' ?>">
                     Corbeille (<?= $trashCount ?>)
@@ -47,10 +49,6 @@ document.addEventListener('htmx:afterSwap',()=>{document.querySelectorAll('input
                         onclick="document.getElementById('import-dialog').showModal()">
                     Importer
                 </button>
-                <button type="button" class="btn btn--primary btn--sm" id="export-dialog-btn"
-                        onclick="document.getElementById('export-dialog').showModal()">
-                    Exporter
-                </button>
             </div>
         </div>
 
@@ -244,43 +242,6 @@ document.addEventListener('htmx:afterSwap',()=>{document.querySelectorAll('input
     <?php endif; ?>
 </dialog>
 
-<!-- ══════════════════════════════════════════════════════════════
-     EXPORT DIALOG
-══════════════════════════════════════════════════════════════ -->
-<dialog id="export-dialog" class="admin-dialog admin-dialog--sm" aria-labelledby="export-dialog-title">
-    <div class="admin-dialog__header">
-        <h2 id="export-dialog-title">Exporter</h2>
-        <button type="button" class="admin-dialog__close" aria-label="Fermer"
-                onclick="document.getElementById('export-dialog').close()">&#x2715;</button>
-    </div>
-
-    <form method="get" action="/admin/actions/export.php" class="admin-form">
-        <div class="admin-form-group">
-            <label class="admin-checkbox-label">
-                <input type="checkbox" name="csv" value="1" checked>
-                CSV (tableau des métadonnées)
-            </label>
-        </div>
-        <div class="admin-form-group">
-            <label class="admin-checkbox-label">
-                <input type="checkbox" name="files" value="1" checked>
-                Fichiers (archive ZIP)
-            </label>
-        </div>
-        <div class="admin-form-group">
-            <label class="admin-checkbox-label">
-                <input type="checkbox" name="db" value="1">
-                Base de données (SQLite)
-            </label>
-        </div>
-        <div class="admin-form-footer">
-            <button type="submit" class="btn btn--primary">Exporter</button>
-            <button type="button" class="btn btn--secondary"
-                    onclick="document.getElementById('export-dialog').close()">Annuler</button>
-        </div>
-    </form>
-</dialog>
-
 <!-- ══════════════════════════════════════════════════════════════
      TMP CLEANUP DIALOG
 ══════════════════════════════════════════════════════════════ -->

app/templates/admin/parametres.php

@@ -65,6 +65,16 @@
                 </form>
             <?php endif; ?>
         </div>
+
+        <h3 style="margin-top:var(--space-l);margin-bottom:var(--space-xs);font-size:var(--step-0)">Export de la base de données</h3>
+        <p style="margin-bottom:var(--space-s)">
+            Télécharger une copie complète de la base de données SQLite
+            (<code>xamxam.db</code>) pour sauvegarde manuelle.
+        </p>
+        <form method="get" action="/admin/actions/export.php" class="param-form">
+            <input type="hidden" name="db" value="1">
+            <button type="submit" class="btn btn--primary">Télécharger la base de données</button>
+        </form>
     </section>
 
     <!-- ══════════════════════════════════════════════════════════════