Add ability to make neutral reviews

migrations/versions/dabd7ab14339_.py

@@ -0,0 +1,37 @@
+"""empty message
+
+Revision ID: dabd7ab14339
+Revises: aa53b4d36c50
+Create Date: 2023-04-15 01:18:53.212673
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'dabd7ab14339'
+down_revision = 'aa53b4d36c50'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.add_column('package_review', sa.Column('rating', sa.Integer(), nullable=True))
+    op.execute("""
+        UPDATE package_review SET rating = CASE
+           WHEN recommends THEN 5
+           ELSE 1
+        END;
+    """)
+    op.drop_column('package_review', 'recommends')
+    op.alter_column('package_review', 'rating', nullable=False)
+
+
+def downgrade():
+    op.add_column('package_review', sa.Column('recommends', sa.BOOLEAN(), autoincrement=False, nullable=True))
+    op.execute("""
+        UPDATE package_review SET recommends = rating >= 3;
+    """)
+    op.drop_column('package_review', 'rating')
+    op.alter_column('package_review', 'recommends', nullable=False)