Fix PDF document detection in declaration list

- Modified hasValidatedDocument() to check file system instead of database
- Added getValidatedPDFPath() method to get PDF file path
- Updated declaration list to show clickable PDF download links
- Added DownloadPDF translation in French and English
- PDF icons now link directly to downloadable PDF files
- Fixed issue where validated declarations didn't show PDF availability

core/class/declarationtva.class.php

@@ -1239,25 +1239,69 @@ class DeclarationTVA
      */
     public function hasValidatedDocument($declaration_id)
     {
-        // First check if the table exists
-        $sql_check = "SHOW TABLES LIKE '" . MAIN_DB_PREFIX . "declarationtva_documents'";
-        $result_check = $this->db->query($sql_check);
+        // Get declaration details
+        $sql = "SELECT declaration_number, status FROM " . MAIN_DB_PREFIX . "declarationtva_declarations 
+                WHERE rowid = " . (int)$declaration_id . " AND entity = " . $this->entity;
         
-        if (!$result_check || $this->db->num_rows($result_check) == 0) {
-            // Table doesn't exist, so no documents
+        $result = $this->db->query($sql);
+        if (!$result || $this->db->num_rows($result) == 0) {
             return false;
         }
         
-        $sql = "SELECT COUNT(*) as count 
-                FROM " . MAIN_DB_PREFIX . "declarationtva_documents dd
-                INNER JOIN " . MAIN_DB_PREFIX . "ecm_files ef ON dd.document_id = ef.rowid
-                WHERE dd.declaration_id = " . (int)$declaration_id . " 
-                AND dd.entity = " . $this->entity;
+        $obj = $this->db->fetch_object($result);
+        
+        // Only check for documents if declaration is validated
+        if ($obj->status != 'validated') {
+            return false;
+        }
+        
+        // Check if PDF file exists in the VAT declarations directory
+        $vat_declarations_dir = DOL_DATA_ROOT . '/documents/declarationtva/';
+        $year_dir = $vat_declarations_dir . date('Y') . '/';
+        $month_dir = $year_dir . date('m') . '/';
+        
+        // Look for PDF files with the declaration number
+        $pattern = $month_dir . 'CA3_' . $obj->declaration_number . '_*.pdf';
+        $files = glob($pattern);
+        
+        return !empty($files) && file_exists($files[0]);
+    }
+    
+    /**
+     * Get the PDF file path for a validated declaration
+     *
+     * @param int $declaration_id Declaration ID
+     * @return string|false PDF file path or false if not found
+     */
+    public function getValidatedPDFPath($declaration_id)
+    {
+        // Get declaration details
+        $sql = "SELECT declaration_number, status FROM " . MAIN_DB_PREFIX . "declarationtva_declarations 
+                WHERE rowid = " . (int)$declaration_id . " AND entity = " . $this->entity;
         
         $result = $this->db->query($sql);
-        if ($result && $this->db->num_rows($result) > 0) {
-            $obj = $this->db->fetch_object($result);
-            return $obj->count > 0;
+        if (!$result || $this->db->num_rows($result) == 0) {
+            return false;
+        }
+        
+        $obj = $this->db->fetch_object($result);
+        
+        // Only return path if declaration is validated
+        if ($obj->status != 'validated') {
+            return false;
+        }
+        
+        // Check if PDF file exists in the VAT declarations directory
+        $vat_declarations_dir = DOL_DATA_ROOT . '/documents/declarationtva/';
+        $year_dir = $vat_declarations_dir . date('Y') . '/';
+        $month_dir = $year_dir . date('m') . '/';
+        
+        // Look for PDF files with the declaration number
+        $pattern = $month_dir . 'CA3_' . $obj->declaration_number . '_*.pdf';
+        $files = glob($pattern);
+        
+        if (!empty($files) && file_exists($files[0])) {
+            return $files[0];
         }
         
         return false;

declarationtvaindex.php

@@ -149,7 +149,17 @@ if (empty($declarations)) {
             // Check if document exists
             $has_document = $declarationtva->hasValidatedDocument($d['rowid']);
             if ($has_document) {
-                print '<i class="fa fa-file-pdf-o text-success" title="' . $langs->trans("ValidatedPDFAvailable") . '"></i>';
+                $pdf_path = $declarationtva->getValidatedPDFPath($d['rowid']);
+                if ($pdf_path) {
+                    // Create a download link
+                    $relative_path = str_replace(DOL_DATA_ROOT, '', $pdf_path);
+                    $download_url = DOL_URL_ROOT . '/documents' . $relative_path;
+                    print '<a href="' . $download_url . '" target="_blank" title="' . $langs->trans("DownloadPDF") . '">';
+                    print '<i class="fa fa-file-pdf-o text-success"></i>';
+                    print '</a>';
+                } else {
+                    print '<i class="fa fa-file-pdf-o text-success" title="' . $langs->trans("ValidatedPDFAvailable") . '"></i>';
+                }
             } else {
                 print '<i class="fa fa-file-o text-muted" title="' . $langs->trans("NoDocument") . '"></i>';
             }

langs/en_US/declarationtva.lang

@@ -512,3 +512,4 @@ ValidatedDeclaration = Validated Declaration
 DraftDeclaration = Draft Declaration
 ValidatedPDFAvailable = Validated PDF Available
 NoDocument = No Document
+DownloadPDF = Download PDF

langs/fr_FR/declarationtva.lang

@@ -484,3 +484,4 @@ ValidatedDeclaration = Déclaration validée
 DraftDeclaration = Déclaration brouillon
 ValidatedPDFAvailable = PDF validé disponible
 NoDocument = Aucun document
+DownloadPDF = Télécharger le PDF