add field to store if a series has been modified

atlas/models.py

@@ -479,6 +479,11 @@ class SeriesImage(SeriesImageBase):
         help_text="Reference to the object that has replaced this one.",
     )
 
+    removed = models.BooleanField(
+        default=False,
+        help_text="Set to true if the file this object refers to has been removed (either from series truncation or merging)",
+    )
+
     def get_dicom_data(self):
         try:
             with pydicom.dcmread(self.image) as d:
@@ -558,6 +563,15 @@ class Series(SeriesBase):
         related_name="series",
     )
 
+
+    class SeriesModifiedChocies(models.TextChoices):
+        NO = "NO", "Not modified",
+        TR = "TR", "Truncated",
+        RE = "RE", "Resliced/resampled",
+
+
+    modified = models.CharField(max_length=2, default=SeriesModifiedChocies.NO, choices=SeriesModifiedChocies.choices)
+
     series_instance_uid = models.CharField(max_length=255, blank=True, null=True)
 
     # findings = models.TextField(null=True, blank=True, help_text="Findings on the series / stack")