Merge pull request #17451 from mitodl/fix_outline_aq_course_structure_api

Fixed edX block structure api to load override data

openedx/core/djangoapps/content/block_structure/block_structure.py

@@ -466,6 +466,22 @@ class BlockStructureBlockData(BlockStructure):
         block_data = self._block_data_map.get(usage_key)
         return getattr(block_data, field_name, default) if block_data else default
 
+    def override_xblock_field(self, usage_key, field_name, override_data):
+        """
+        Set value of the XBlock field for the requested block for the requested field_name;
+
+        Arguments:
+            usage_key (UsageKey) - Usage key of the block whose xBlock
+                field is requested.
+
+            field_name (string) - The name of the field that is
+                requested.
+
+            override_data (object) - The data you want to set
+        """
+        block_data = self._block_data_map.get(usage_key)
+        setattr(block_data, field_name, override_data)
+
     def get_transformer_data(self, transformer, key, default=None):
         """
         Returns the value associated with the given key from the given

openedx/core/djangoapps/content/block_structure/tests/test_block_structure.py

@@ -1,6 +1,7 @@
 """
 Tests for block_structure.py
 """
+from datetime import datetime
 # pylint: disable=protected-access
 from collections import namedtuple
 from copy import deepcopy
@@ -156,6 +157,45 @@ class TestBlockStructureData(TestCase, ChildrenMapTestMixin):
                     block.field_map.get(field),
                 )
 
+    def test_xblock_field_override(self):
+        # block field override test cases
+        attribute = {
+            "start": datetime(2017, 3, 23, 16, 38, 46, 271475),
+            "display_name": "Foo block",
+            "due": datetime(2017, 5, 23, 16, 38, 46, 271475)
+        }
+        override_due_date = datetime(2018, 2, 23, 16, 38, 46, 271475)
+        block = MockXBlock("Foo", attribute)
+
+        # add each block
+        block_structure = BlockStructureModulestoreData(root_block_usage_key=0)
+        block_structure._add_xblock(block.location, block)
+        block_structure._get_or_create_block(block.location)
+
+        fields = attribute.keys()
+        block_structure.request_xblock_fields(*fields)
+
+        # collect fields
+        block_structure._collect_requested_xblock_fields()
+
+        # verify values of collected fields
+        bs_block = block_structure[block.location]
+        for field in fields:
+            self.assertEquals(
+                getattr(bs_block, field, None),
+                block.field_map.get(field),
+            )
+
+        block_structure.override_xblock_field(
+            block.location,
+            "due",
+            override_due_date
+        )
+        self.assertEquals(
+            block_structure.get_xblock_field(block.location, "due", None),
+            override_due_date
+        )
+
     @ddt.data(
         *itertools.product(
             [True, False],