Added table release notifications and added business object (#192)

* Added table release notifications and added business object

* Added create release notification and email on display

* Update and delete release notifications

* display notifications in reverse order

* PR comments

Author: lumburovskalina

business_objects/release_notification.py

@@ -0,0 +1,60 @@
+from typing import List
+from ..models import ReleaseNotification
+from . import general
+from ..session import session
+from datetime import datetime
+
+
+def get(release_notification_id: str) -> ReleaseNotification:
+    return (
+        session.query(ReleaseNotification)
+        .filter(ReleaseNotification.id == release_notification_id)
+        .first()
+    )
+
+
+def get_all() -> List[ReleaseNotification]:
+    return (
+        session.query(ReleaseNotification)
+        .order_by(ReleaseNotification.created_at.desc())
+        .all()
+    )
+
+
+def create(
+    link: str,
+    config: str,
+    created_by: str,
+    with_commit: bool = False,
+) -> ReleaseNotification:
+    release_notification = ReleaseNotification(
+        link=link, config=config, created_by=created_by
+    )
+    general.add(release_notification, with_commit)
+    return release_notification
+
+
+def update(
+    notification_id: str,
+    link: str,
+    config: str,
+    with_commit: bool = False,
+) -> ReleaseNotification:
+    release_notification = get(notification_id)
+
+    if release_notification is None:
+        return
+
+    if link is not None:
+        release_notification.link = link
+    if config is not None:
+        release_notification.config = config
+
+    general.flush_or_commit(with_commit)
+    return release_notification
+
+
+def delete(notification_id: str, with_commit: bool = False):
+    release_notification = get(notification_id)
+    general.delete(release_notification, with_commit)
+    general.flush_or_commit(with_commit)

enums.py

@@ -176,6 +176,7 @@ class Tablenames(Enum):
     )
     SUMS_TABLE = "sums_table"
     ADMIN_QUERY_MESSAGE_SUMMARY = "admin_query_message_summary"
+    RELEASE_NOTIFICATION = "release_notification"
 
     def snake_case_to_pascal_case(self):
         # the type name (written in PascalCase) of a table is needed to create backrefs

models.py

@@ -2490,3 +2490,17 @@ class AdminQueryMessageSummary(Base):
     deleted_messages_by_user = Column(Integer, default=0)
     deleted_messages_by_system = Column(Integer, default=0)
     incognito_messages = Column(Integer, default=0)
+
+
+class ReleaseNotification(Base):
+    __tablename__ = Tablenames.RELEASE_NOTIFICATION.value
+    __table_args__ = {"schema": "global"}
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    created_at = Column(DateTime, default=sql.func.now())
+    created_by = Column(
+        UUID(as_uuid=True),
+        ForeignKey(f"{Tablenames.USER.value}.id", ondelete="SET NULL"),
+        index=True,
+    )
+    link = Column(String, nullable=False)
+    config = Column(JSON)  # e.g. {"en": {"headline":"", "description":""}, "de": {...}}