Migration for LMSTerm

- Create the lms_term table
- Add the term_id column to the lms_course table

lms/migrations/versions/a8fd48c30957_create_the_lms_term_table.py

@@ -0,0 +1,61 @@
+"""Create the lms_term table."""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision = "a8fd48c30957"
+down_revision = "9be518500f7d"
+
+
+def upgrade() -> None:
+    op.create_table(
+        "lms_term",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("tool_consumer_instance_guid", sa.String(), nullable=True),
+        sa.Column("name", sa.String(), nullable=True),
+        sa.Column("starts_at", sa.DateTime(), nullable=True),
+        sa.Column("ends_at", sa.DateTime(), nullable=True),
+        sa.Column("key", sa.String(), nullable=False),
+        sa.Column("lms_id", sa.String(), nullable=True),
+        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.PrimaryKeyConstraint("id", name=op.f("pk__lms_term")),
+    )
+    op.create_index(op.f("ix__lms_term_key"), "lms_term", ["key"], unique=True)
+    op.create_index(op.f("ix__lms_term_lms_id"), "lms_term", ["lms_id"], unique=False)
+    op.create_index(
+        op.f("ix__lms_term_tool_consumer_instance_guid"),
+        "lms_term",
+        ["tool_consumer_instance_guid"],
+        unique=False,
+    )
+    op.add_column("lms_course", sa.Column("lms_term_id", sa.Integer(), nullable=True))
+    op.create_index(
+        op.f("ix__lms_course_lms_term_id"), "lms_course", ["lms_term_id"], unique=False
+    )
+    op.create_foreign_key(
+        op.f("fk__lms_course__lms_term_id__lms_term"),
+        "lms_course",
+        "lms_term",
+        ["lms_term_id"],
+        ["id"],
+        ondelete="cascade",
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint(
+        op.f("fk__lms_course__lms_term_id__lms_term"), "lms_course", type_="foreignkey"
+    )
+    op.drop_index(op.f("ix__lms_course_lms_term_id"), table_name="lms_course")
+    op.drop_column("lms_course", "lms_term_id")
+    op.drop_index(
+        op.f("ix__lms_term_tool_consumer_instance_guid"), table_name="lms_term"
+    )
+    op.drop_index(op.f("ix__lms_term_lms_id"), table_name="lms_term")
+    op.drop_index(op.f("ix__lms_term_key"), table_name="lms_term")
+    op.drop_table("lms_term")