Add optional series MainDicomTags

pyorthanc/resources/series.py

@@ -3,7 +3,7 @@
 
 from .instance import Instance
 from .resource import Resource
-from .. import util
+from .. import errors, util
 
 
 class Series(Resource):
@@ -105,6 +105,27 @@ def series_number(self) -> str:
         """
         return self.get_main_information()['MainDicomTags']['SeriesNumber']
 
+    @property
+    def performed_procedure_step_description(self):
+        try:
+            return self.get_main_information()['MainDicomTags']['PerformedProcedureStepDescription']
+        except KeyError:
+            raise errors.OptionalTagDoesNotExistError(f'{self} has no PerformedProcedureStepDescription tag.')
+
+    @property
+    def protocol_name(self):
+        try:
+            return self.get_main_information()['MainDicomTags']['ProtocolName']
+        except KeyError:
+            raise errors.OptionalTagDoesNotExistError(f'{self} has no ProtocolName tag.')
+
+    @property
+    def station_name(self):
+        try:
+            return self.get_main_information()['MainDicomTags']['StationName']
+        except KeyError:
+            raise errors.OptionalTagDoesNotExistError(f'{self} has no StationName tag.')
+
     @property
     def is_stable(self):
         return self.get_main_information()['IsStable']

tests/test_series.py

@@ -4,6 +4,7 @@
 
 import pytest
 
+from pyorthanc import errors
 from .conftest import LABEL_SERIES
 from .data import a_series
 
@@ -22,6 +23,13 @@ def test_attributes(series):
     assert series.instances != []
     assert str(series) == f'Series({a_series.IDENTIFIER})'
 
+    with pytest.raises(errors.OptionalTagDoesNotExistError):
+        series.performed_procedure_step_description
+    with pytest.raises(errors.OptionalTagDoesNotExistError):
+        series.protocol_name
+    with pytest.raises(errors.OptionalTagDoesNotExistError):
+        series.station_name
+
 
 def test_zip(series):
     result = series.get_zip()