Add new Mention model

h/migrations/versions/39cc1025a3a2_create_mention_table.py

@@ -0,0 +1,41 @@
+"""Add migration to create Mention table."""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "39cc1025a3a2"
+down_revision = "78d3d6fe1d42"
+
+
+def upgrade():
+    op.create_table(
+        "mention",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("annotation_id", sa.Integer(), nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=False),
+        sa.Column(
+            "created", sa.DateTime(), server_default=sa.text("now()"), nullable=False
+        ),
+        sa.Column(
+            "updated", sa.DateTime(), server_default=sa.text("now()"), nullable=False
+        ),
+        sa.ForeignKeyConstraint(
+            ["annotation_id"],
+            ["annotation_slim.id"],
+            name=op.f("fk__mention__annotation_id__annotation_slim"),
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["user_id"],
+            ["user.id"],
+            name=op.f("fk__mention__user_id__user"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk__mention")),
+    )
+    op.create_index(op.f("ix__mention_user_id"), "mention", ["user_id"], unique=False)
+
+
+def downgrade():
+    op.drop_index(op.f("ix__mention_user_id"), table_name="mention")
+    op.drop_table("mention")

h/models/__init__.py

@@ -33,6 +33,7 @@
 from h.models.group import Group, GroupMembership, GroupMembershipRoles
 from h.models.group_scope import GroupScope
 from h.models.job import Job
+from h.models.mention import Mention
 from h.models.organization import Organization
 from h.models.setting import Setting
 from h.models.subscriptions import Subscriptions
@@ -60,6 +61,7 @@
     "GroupMembership",
     "GroupScope",
     "Job",
+    "Mention",
     "Organization",
     "Setting",
     "Subscriptions",

h/models/mention.py

@@ -0,0 +1,32 @@
+import sqlalchemy as sa
+from sqlalchemy.orm import Mapped, mapped_column
+
+from h.db import Base
+from h.db.mixins import Timestamps
+from h.models import helpers
+
+
+class Mention(Base, Timestamps):  # pragma: nocover
+    __tablename__ = "mention"
+
+    id: Mapped[int] = mapped_column(sa.Integer, autoincrement=True, primary_key=True)
+
+    annotation_id: Mapped[int] = mapped_column(
+        sa.Integer,
+        sa.ForeignKey("annotation_slim.id", ondelete="CASCADE"),
+        nullable=False,
+    )
+    """FK to annotation_slim.id"""
+    annotation = sa.orm.relationship("AnnotationSlim")
+
+    user_id: Mapped[int] = mapped_column(
+        sa.Integer,
+        sa.ForeignKey("user.id", ondelete="CASCADE"),
+        nullable=False,
+        index=True,
+    )
+    """FK to user.id"""
+    user = sa.orm.relationship("User")
+
+    def __repr__(self) -> str:
+        return helpers.repr_(self, ["id", "annotation_id", "user_id"])