Model: Add status versioning and update study version to 0.0.10.

src/Model/Saved.py

@@ -22,10 +22,19 @@ logger = logging.getLogger()
 
 
 class SavedStatus(object):
-    def __init__(self):
+    def __init__(self, version=0):
         super(SavedStatus, self).__init__()
+        self._version = version
         self._saved = True
 
+    @property
+    def version(self):
+        return self._version
+
+    @version.setter
+    def version(self, version):
+        self._version = version
+
     def is_saved(self):
         return self._saved
 
@@ -34,5 +43,11 @@ class SavedStatus(object):
         self._saved = True
 
     def modified(self):
-        # logger.debug("model status set as modified")
+        if self._saved:
+            self._version += 1
+
+        logger.debug(
+            "STATUS: Model status set as modified " +
+            f"at version {self._version}"
+        )
         self._saved = False

src/Model/Study.py

@@ -41,7 +41,7 @@ class Study(SQLModel):
 
     def __init__(self, filename=None, init_new=True):
         # Metadata
-        self._version = "0.0.9"
+        self._version = "0.0.10"
         self.creation_date = datetime.now()
         self.last_modification_date = datetime.now()
         self.last_save_date = datetime.now()
@@ -209,7 +209,12 @@ class Study(SQLModel):
     def _create(self):
         # Info (metadata)
         self.execute(
-            "CREATE TABLE info(key TEXT NOT NULL UNIQUE, value TEXT NOT NULL)")
+            "INSERT INTO info VALUES ('study_release', '0')"
+        )
+
+        self.execute(
+            "CREATE TABLE info(key TEXT NOT NULL UNIQUE, value TEXT NOT NULL)"
+        )
         self.execute(
             "INSERT INTO info VALUES ('version', " +
             f"'{self._db_format(self._version)}')",
@@ -218,19 +223,20 @@ class Study(SQLModel):
         self.execute("INSERT INTO info VALUES ('name', '')")
         self.execute("INSERT INTO info VALUES ('description', '')")
         self.execute(
-            f"INSERT INTO info VALUES ('time_system', '{self._time_system}')")
+            f"INSERT INTO info VALUES ('time_system', '{self._time_system}')"
+        )
         self.execute(
-            f"INSERT INTO info VALUES ('date', " +
-            "'{self._date.timestamp()}')"
+            "INSERT INTO info VALUES ('date', " +
+            f"'{self._date.timestamp()}')"
         )
 
         self.execute(
-            f"INSERT INTO info VALUES ('creation_date', " +
-            "'{self.creation_time.timestamp()}')"
+            "INSERT INTO info VALUES ('creation_date', " +
+            f"'{self.creation_date.timestamp()}')"
         )
         self.execute(
-            f"INSERT INTO info VALUES ('last_save_date', " +
-            "'{self.last_save_time.timestamp()}')"
+            "INSERT INTO info VALUES ('last_save_date', " +
+            f"'{self.last_save_date.timestamp()}')"
         )
 
         self._create_submodel()
@@ -245,6 +251,12 @@ class Study(SQLModel):
 
         logger.debug("Update database")
 
+        major, minor, release = version[0].split('.')
+        if major == "0" and minor == "0" and int(release) < 10:
+            self.execute(
+                "INSERT INTO info VALUES ('study_release', '0')"
+            )
+
         if self._update_submodel(version[0]):
             self.execute(
                 f"UPDATE info SET value='{self._version}' WHERE key='version'"
@@ -258,6 +270,9 @@ class Study(SQLModel):
     def _load(cls, filename):
         new = cls(init_new=False, filename=filename)
 
+        version = new.execute("SELECT value FROM info WHERE key='study_release'")[0]
+        new.status.version = int(version)
+
         # TODO: Load metadata
         new.name = new.execute("SELECT value FROM info WHERE key='name'")[0]
         new.description = new.execute(
@@ -292,6 +307,11 @@ class Study(SQLModel):
     def _save(self, progress=None):
         progress = progress if progress is not None else lambda: None
 
+        self.execute(
+            "INSERT INTO info VALUES ('study_release', "+
+            f"'{self.status.version}')"
+        )
+
         self.execute(
             f"UPDATE info SET " +
             f"value='{self._db_format(self.name)}' WHERE key='name'"