refactor: xblock api upstream info and course details api

cms/djangoapps/contentstore/rest_api/v1/serializers/course_details.py

@@ -53,6 +53,7 @@ class CourseDetailsSerializer(serializers.Serializer):
     pre_requisite_courses = serializers.ListField(child=CourseKeyField())
     run = serializers.CharField()
     self_paced = serializers.BooleanField()
+    has_changes = serializers.BooleanField()
     short_description = serializers.CharField(allow_blank=True)
     start_date = serializers.DateTimeField()
     subtitle = serializers.CharField(allow_blank=True)

cms/djangoapps/contentstore/rest_api/v1/serializers/vertical_block.py

@@ -125,7 +125,7 @@ class UpstreamLinkSerializer(serializers.Serializer):
     error_message = serializers.CharField(allow_null=True)
     ready_to_sync = serializers.BooleanField()
     downstream_customized = serializers.ListField(child=serializers.CharField(), allow_empty=True)
-    has_top_level_parent = serializers.BooleanField()
+    top_level_parent_key = serializers.CharField(allow_null=True)
     ready_to_sync_children = UpstreamChildrenInfoSerializer(many=True, required=False)
 
 

cms/djangoapps/contentstore/rest_api/v1/views/tests/test_vertical_block.py

@@ -323,7 +323,7 @@ def test_children_content(self):
                     "version_declined": None,
                     "error_message": None,
                     "ready_to_sync": True,
-                    "has_top_level_parent": False,
+                    "top_level_parent_key": None,
                     "downstream_customized": [],
                 },
                 "user_partition_info": expected_user_partition_info,

cms/djangoapps/contentstore/rest_api/v2/views/tests/test_downstreams.py

@@ -50,7 +50,7 @@ def _get_upstream_link_good_and_syncable(downstream):
         version_declined=downstream.upstream_version_declined,
         error_message=None,
         downstream_customized=[],
-        has_top_level_parent=False,
+        top_level_parent_key=None,
         upstream_name=downstream.upstream_display_name,
     )
 

cms/djangoapps/contentstore/tasks.py

@@ -35,7 +35,7 @@
 from olxcleaner.reporting import report_error_summary, report_errors
 from opaque_keys import InvalidKeyError
 from opaque_keys.edx.keys import CourseKey, UsageKey
-from opaque_keys.edx.locator import LibraryContainerLocator, LibraryLocator, BlockUsageLocator
+from opaque_keys.edx.locator import LibraryContainerLocator, LibraryLocator
 from openedx_events.content_authoring.data import CourseData
 from openedx_events.content_authoring.signals import COURSE_RERUN_COMPLETED
 from organizations.api import add_organization_course, ensure_organization
@@ -1641,11 +1641,7 @@ def handle_create_xblock_upstream_link(usage_key):
         return
     if xblock.top_level_downstream_parent_key is not None:
         block_key = BlockKey.from_string(xblock.top_level_downstream_parent_key)
-        top_level_parent_usage_key = BlockUsageLocator(
-            xblock.course_id,
-            block_key.type,
-            block_key.id,
-        )
+        top_level_parent_usage_key = block_key.to_usage_key(xblock.course_id)
         try:
             ContainerLink.get_by_downstream_usage_key(top_level_parent_usage_key)
         except ContainerLink.DoesNotExist:

cms/djangoapps/contentstore/xblock_storage_handlers/view_handlers.py

@@ -1202,6 +1202,9 @@ def create_xblock_info(  # lint-amnesty, pylint: disable=too-many-statements
                 "edited_on": get_default_time_display(xblock.subtree_edited_on)
                 if xblock.subtree_edited_on
                 else None,
+                "edited_on_raw": str(xblock.subtree_edited_on)
+                if xblock.subtree_edited_on
+                else None,
                 "published": published,
                 "published_on": published_on,
                 "studio_url": xblock_studio_url(xblock, parent_xblock),
@@ -1331,7 +1334,7 @@ def create_xblock_info(  # lint-amnesty, pylint: disable=too-many-statements
             # Disable adding or removing children component if xblock is imported from library
             xblock_actions["childAddable"] = False
             # Enable unlinking only for top level imported components
-            xblock_actions["unlinkable"] = not upstream_info["has_top_level_parent"]
+            xblock_actions["unlinkable"] = not upstream_info["top_level_parent_key"]
 
         if is_xblock_unit:
             # if xblock is a Unit we add the discussion_enabled option

cms/lib/xblock/upstream_sync.py

@@ -86,7 +86,7 @@ class UpstreamLink:
     version_declined: int | None  # Latest version which the user has declined to sync with, if any.
     error_message: str | None  # If link is valid, None. Otherwise, a localized, human-friendly error message.
     downstream_customized: list[str] | None  # List of fields modified in downstream
-    has_top_level_parent: bool  # True if this Upstream link has a top-level parent
+    top_level_parent_key: str | None  # key of top-level parent if Upstream link has a one.
 
     @property
     def is_upstream_deleted(self) -> bool:
@@ -153,7 +153,7 @@ def ready_to_sync(self) -> bool:
         from xmodule.modulestore.django import modulestore
 
         # If this component/container has top-level parent, so we need to sync the parent
-        if self.has_top_level_parent:
+        if self.top_level_parent_key:
             return False
 
         if isinstance(self.upstream_key, LibraryUsageLocatorV2):
@@ -222,6 +222,10 @@ def try_get_for_block(cls, downstream: XBlock, log_error: bool = True) -> t.Self
                     downstream.usage_key,
                     downstream.upstream,
                 )
+            if top_level_parent_key := getattr(downstream, "top_level_downstream_parent_key", None):
+                top_level_parent_key = str(
+                    BlockKey.from_string(top_level_parent_key).to_usage_key(downstream.usage_key.context_key)
+                )
             return cls(
                 upstream_ref=getattr(downstream, "upstream", None),
                 upstream_name=getattr(downstream, "upstream_display_name", None),
@@ -232,7 +236,7 @@ def try_get_for_block(cls, downstream: XBlock, log_error: bool = True) -> t.Self
                 version_declined=None,
                 error_message=str(exc),
                 downstream_customized=getattr(downstream, "downstream_customized", []),
-                has_top_level_parent=getattr(downstream, "top_level_downstream_parent_key", None) is not None,
+                top_level_parent_key=top_level_parent_key,
             )
 
     @classmethod
@@ -306,6 +310,10 @@ def get_for_block(cls, downstream: XBlock) -> t.Self:
                 )
             )
 
+        if top_level_parent_key := getattr(downstream, "top_level_downstream_parent_key", None):
+            top_level_parent_key = str(
+                BlockKey.from_string(top_level_parent_key).to_usage_key(downstream.usage_key.context_key)
+            )
         result = cls(
             upstream_ref=downstream.upstream,
             upstream_key=upstream_key,
@@ -316,7 +324,7 @@ def get_for_block(cls, downstream: XBlock) -> t.Self:
             version_declined=downstream.upstream_version_declined,
             error_message=None,
             downstream_customized=getattr(downstream, "downstream_customized", []),
-            has_top_level_parent=downstream.top_level_downstream_parent_key is not None,
+            top_level_parent_key=top_level_parent_key,
         )
 
         return result

cms/templates/studio_xblock_wrapper.html

@@ -25,7 +25,7 @@
 block_is_unit = is_unit(xblock)
 
 upstream_info = UpstreamLink.try_get_for_block(xblock, log_error=False)
-can_unlink = upstream_info.upstream_ref and not upstream_info.has_top_level_parent
+can_unlink = upstream_info.upstream_ref and not upstream_info.top_level_parent_key
 %>
 
 <%namespace name='static' file='static_content.html'/>

openedx/core/djangoapps/models/course_details.py

@@ -77,6 +77,7 @@ def __init__(self, org, course_id, run):
         self.self_paced = None
         self.learning_info = []
         self.instructor_info = []
+        self.has_changes = None
 
     @classmethod
     def fetch_about_attribute(cls, course_key, attribute):
@@ -127,6 +128,7 @@ def populate(cls, block):
         course_details.video_thumbnail_image_asset_path = course_image_url(block, 'video_thumbnail_image')
         course_details.language = block.language
         course_details.self_paced = block.self_paced
+        course_details.has_changes = modulestore().has_changes(block)
         course_details.learning_info = block.learning_info
         course_details.instructor_info = block.instructor_info
         course_details.title = block.display_name

xmodule/util/keys.py

@@ -3,10 +3,11 @@
 
 Consider moving these into opaque-keys if they generalize well.
 """
+from opaque_keys.edx.locator import BlockUsageLocator
 import hashlib
 from typing import NamedTuple, Self
 
-from opaque_keys.edx.keys import UsageKey
+from opaque_keys.edx.keys import UsageKey, CourseKey
 
 
 class BlockKey(NamedTuple):
@@ -40,6 +41,16 @@ def from_string(cls, s: str) -> Self:
             raise ValueError(f"Invalid string format for BlockKey: {s}")
         return cls(parts[0], parts[1])
 
+    def to_usage_key(self, course_key: CourseKey) -> UsageKey:
+        """
+        Converts this BlockKey into a UsageKey.
+        """
+        return BlockUsageLocator(
+            course_key,
+            self.type,
+            self.id,
+        )
+
 
 def derive_key(source: UsageKey, dest_parent: BlockKey) -> BlockKey:
     """