added portfolio view

cao_blogr/alembic/versions/20230126_42a297861f20.py

@@ -0,0 +1,30 @@
+"""added relationship allocation-classe
+
+Revision ID: 42a297861f20
+Revises: 19d939dbc6d0
+Create Date: 2023-01-26 14:23:42.771763
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '42a297861f20'
+down_revision = '19d939dbc6d0'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('allocation', sa.Column('classe_id', sa.Unicode(length=45), nullable=True))
+    op.create_foreign_key(op.f('fk_allocation_classe_id_classes'), 'allocation', 'classes', ['classe_id'], ['classe'])
+    op.drop_column('allocation', 'classe')
+    # ### end Alembic commands ###
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('allocation', sa.Column('classe', sa.VARCHAR(length=45), nullable=False))
+    op.drop_constraint(op.f('fk_allocation_classe_id_classes'), 'allocation', type_='foreignkey')
+    op.drop_column('allocation', 'classe_id')
+    # ### end Alembic commands ###