serialization and deserialization done

serializer.py

@@ -2,23 +2,48 @@ import json
 import subject
 
 
-class TempSubject:
+class TempSubjectSerialize:
+    def __init__(self, _subject):
+        self.name = _subject.name
+        self.main_subject = str(_subject.main_subject)
+        self.oral_exam = str(_subject.oral_exam)
+        self.grades = {}
+        for category in _subject.grades:
+            self.grades[category] = {}
+            for counter, grade in enumerate(_subject.grades[category][0]):
+                self.grades[category][str(counter)] = {
+                    "grade": str(grade.grade),
+                    "name": str(grade.name),
+                    "date": str(grade.date)
+                }
+            self.grades[category]["rating"] = _subject.grades[category][1]
+
+    def get_string(self):
+        string = self.__dict__
+        string = str(string)
+        string = string.replace("'", '"')
+        return string
+
+
+class TempSubjectDeserialize:
     def __init__(self, string):
         self.__dict__ = json.loads(string)
 
 
-def serialize(subject):
-    string = subject.__dict__
-    for category in string["grades"]:
-        for counter, grade in enumerate(string["grades"][category][0]):
-            string["grades"][category][0][counter] = grade.__dict__
+def serialize(_subject):
+    ser = TempSubjectSerialize(_subject)
+    string = ser.get_string()
     return str(string)
 
 
 def deserialize(string):
-    temp = TempSubject(string)
+    temp = TempSubjectDeserialize(string)
     _subject = subject.Subject(temp.name, bool(temp.main_subject), bool(temp.oral_exam))
     for category in temp.grades:
-        _subject.add_grade_category(category, temp.grades[category][1])
+        _subject.add_grade_category(category, temp.grades[category]['rating'])
+        for grade in temp.grades[category]:
+            if grade != "rating":
+                _subject.add_grade(category, subject.Grade(float(temp.grades[category][grade]["grade"]),  # the grade
+                                                           temp.grades[category][grade]["name"],  # the name of grade
+                                                           temp.grades[category][grade]["date"]))  # the date of grade
     return _subject
-

test.json

@@ -0,0 +1 @@
+{"name": "Deutsch", "main_subject": "False", "oral_exam": "True", "grades": {"schriftlich": {"0": {"grade": "13", "name": "KA1", "date": "2019-08-04 08:25:17.797803"}, "1": {"grade": "9", "name": "KA2", "date": "2019-08-04 08:25:17.797803"}, "rating": 2}, "mündlich": {"0": {"grade": "12", "name": "mündl 1. HJ", "date": "2019-08-04 08:25:17.797803"}, "rating": 1}}}