feat: add description column to MLModelSQL with default message (#190)

* feat: add description column to MLModelSQL with default message

* done formatting using black

alembic/versions/fa74fbe945fd_add_description_column_to_mlmodelsql.py

@@ -0,0 +1,28 @@
+"""Add description column to MLModelSQL
+
+Revision ID: fa74fbe945fd
+Revises: 12c0ccf6b825
+Create Date: 2025-01-19 18:19:45.306091
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'fa74fbe945fd'
+down_revision = '12c0ccf6b825'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('ml_model', sa.Column('description', sa.String(), server_default='No description provided.', nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('ml_model', 'description')
+    # ### end Alembic commands ###

pvsite_datamodel/sqlmodels.py

@@ -31,6 +31,9 @@ class MLModelSQL(Base, CreatedMixin):
     name = sa.Column(sa.String)
     version = sa.Column(sa.String)
 
+    # Add description with default message
+    description = sa.Column(sa.String, nullable=True, server_default="No description provided.")
+
     forecast_values: Mapped[List["ForecastValueSQL"]] = relationship(
         "ForecastValueSQL", back_populates="ml_model"
     )