From 8440b7c30dc3dd169dd035d1074678000077f09e Mon Sep 17 00:00:00 2001
From: Till Tomczak <till.tmk@gmail.com>
Date: Sat, 10 May 2025 23:01:22 +0200
Subject: [PATCH] "Refactor database connection for improved data consistency
 (feat"

---
 __pycache__/app.cpython-313.pyc          | Bin 99666 -> 101152 bytes
 app.py                                   |  47 +++++++++++++++++++----
 utils/__pycache__/db_fix.cpython-313.pyc | Bin 3766 -> 4348 bytes
 utils/db_fix.py                          |  16 +++++++-
 4 files changed, 54 insertions(+), 9 deletions(-)

diff --git a/__pycache__/app.cpython-313.pyc b/__pycache__/app.cpython-313.pyc
index a6375f7b3e582894fa8c1b725340f035d4005a99..0543c2013356ea1aa3302593ca8959fa3d506688 100644
GIT binary patch
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diff --git a/app.py b/app.py
index 4670368..dffaac6 100644
--- a/app.py
+++ b/app.py
@@ -2026,6 +2026,7 @@ def admin_update_database():
 def get_mindmap_node(node_id):
     """Liefert die Mindmap-Daten für einen bestimmten Knoten und seine Subthemen."""
     try:
+        # Erkennen besonderer Knotennamen
         if node_id == 'root':
             # Hauptknoten (Wissen) abrufen
             wissen_node = MindMapNode.query.filter_by(name="Wissen").first()
@@ -2041,11 +2042,39 @@ def get_mindmap_node(node_id):
             
             # Alle direkten Kinder des Wissen-Knotens holen
             nodes = wissen_node.children.all()
-        else:
+            parent_node = wissen_node
+        elif node_id.isdigit():
             # Bestimmten Knoten und seine Kinder abrufen
-            parent_node = MindMapNode.query.get_or_404(node_id)
+            parent_node = MindMapNode.query.get_or_404(int(node_id))
+            nodes = parent_node.children.all()
+        else:
+            # Versuche, einen Knoten mit diesem Namen zu finden
+            parent_node = MindMapNode.query.filter_by(name=node_id.capitalize()).first()
+            
+            if not parent_node:
+                # Versuche, eine Kategorie mit diesem Namen zu finden
+                category = Category.query.filter(func.lower(Category.name) == func.lower(node_id)).first()
+                if category:
+                    # Finde oder erstelle einen Knoten für diese Kategorie
+                    parent_node = MindMapNode.query.filter_by(category_id=category.id).first()
+                    if not parent_node:
+                        parent_node = MindMapNode(
+                            name=category.name,
+                            description=category.description,
+                            color_code=category.color_code,
+                            category_id=category.id,
+                            is_public=True
+                        )
+                        db.session.add(parent_node)
+                        db.session.commit()
+                
+            if not parent_node:
+                # Fallback zum Wissen-Knoten
+                parent_node = MindMapNode.query.filter_by(name="Wissen").first()
+                if not parent_node:
+                    return jsonify({'error': 'Knoten nicht gefunden'}), 404
+            
             nodes = parent_node.children.all()
-            wissen_node = parent_node
         
         # Ergebnisdaten vorbereiten
         nodes_data = []
@@ -2053,10 +2082,10 @@ def get_mindmap_node(node_id):
         
         # Hauptknoten hinzufügen
         nodes_data.append({
-            'id': wissen_node.id,
-            'name': wissen_node.name,
-            'description': wissen_node.description or '',
-            'color_code': wissen_node.color_code or '#4299E1',
+            'id': parent_node.id,
+            'name': parent_node.name,
+            'description': parent_node.description or '',
+            'color_code': parent_node.color_code or '#4299E1',
             'is_center': True,
             'has_children': len(nodes) > 0
         })
@@ -2074,7 +2103,7 @@ def get_mindmap_node(node_id):
             
             # Verbindung zum Elternknoten hinzufügen
             edges_data.append({
-                'source_id': wissen_node.id,
+                'source_id': parent_node.id,
                 'target_id': node.id,
                 'strength': 0.8
             })
@@ -2086,6 +2115,8 @@ def get_mindmap_node(node_id):
         
     except Exception as e:
         print(f"Fehler beim Abrufen der Mindmap-Daten: {str(e)}")
+        import traceback
+        traceback.print_exc()
         return jsonify({
             'success': False,
             'error': 'Mindmap-Daten konnten nicht geladen werden'
diff --git a/utils/__pycache__/db_fix.cpython-313.pyc b/utils/__pycache__/db_fix.cpython-313.pyc
index f60885bf5d46833ba3d11e6aa1fd815253c72f47..ad2e95513a6c79ed1e4751d3008a6819558fbe3a 100644
GIT binary patch
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diff --git a/utils/db_fix.py b/utils/db_fix.py
index 2271457..6120092 100644
--- a/utils/db_fix.py
+++ b/utils/db_fix.py
@@ -11,19 +11,33 @@ import importlib.util
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app, db_path
+# Direkt den Datenbankpfad berechnen, statt ihn aus app.py zu importieren
+def get_db_path():
+    """Berechnet den absoluten Pfad zur Datenbank"""
+    basedir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+    return os.path.join(basedir, 'database', 'systades.db')
+
+# Import models direkt
 from models import db
 
 def ensure_db_dir():
     """Make sure the database directory exists."""
+    db_path = get_db_path()
     os.makedirs(os.path.dirname(db_path), exist_ok=True)
 
 def fix_database_schema():
     """Fix the database schema by adding missing columns."""
+    # Import Flask-App erst innerhalb der Funktion
+    from flask import Flask
+    from app import app
+    
     with app.app_context():
         # Ensure directory exists
         ensure_db_dir()
         
+        # Get database path
+        db_path = get_db_path()
+        
         # Check if database exists, create tables if needed
         if not os.path.exists(db_path):
             print("Database doesn't exist. Creating all tables from scratch...")