feat: add completion indicator

models.py

@@ -48,6 +48,65 @@ class Assessment(db.Model):
 
     def __repr__(self):
         return f'<Assessment {self.title}>'
+    
+    @property
+    def grading_progress(self):
+        """Calcule le pourcentage de progression des notes saisies pour cette évaluation.
+        Retourne un dictionnaire avec les statistiques de progression."""
+        
+        # Obtenir tous les éléments de notation pour cette évaluation
+        total_elements = 0
+        completed_elements = 0
+        total_students = len(self.class_group.students)
+        
+        if total_students == 0:
+            return {
+                'percentage': 0,
+                'completed': 0,
+                'total': 0,
+                'status': 'no_students'
+            }
+        
+        # Parcourir tous les exercices et leurs éléments de notation
+        for exercise in self.exercises:
+            for grading_element in exercise.grading_elements:
+                total_elements += total_students
+                
+                # Compter les notes saisies (valeur non nulle et non vide)
+                completed_for_element = db.session.query(Grade).filter(
+                    Grade.grading_element_id == grading_element.id,
+                    Grade.value.isnot(None),
+                    Grade.value != '',
+                    Grade.value != '.'
+                ).count()
+                
+                completed_elements += completed_for_element
+        
+        if total_elements == 0:
+            return {
+                'percentage': 0,
+                'completed': 0,
+                'total': 0,
+                'status': 'no_elements'
+            }
+        
+        percentage = round((completed_elements / total_elements) * 100)
+        
+        # Déterminer le statut
+        if percentage == 0:
+            status = 'not_started'
+        elif percentage == 100:
+            status = 'completed'
+        else:
+            status = 'in_progress'
+        
+        return {
+            'percentage': percentage,
+            'completed': completed_elements,
+            'total': total_elements,
+            'status': status,
+            'students_count': total_students
+        }
 
 class Exercise(db.Model):
     id = db.Column(db.Integer, primary_key=True)