Reapply "Merge pull request #416 from Open-Earth-Foundation/fix/missi…

…ng_columns_country_code_table"

This reverts commit d778773.

global-api/migrations/versions/949c5b9cc18d_ef_in_country_code_table.py

@@ -0,0 +1,30 @@
+"""EF_in_country_code_table
+
+Revision ID: 949c5b9cc18d
+Revises: 583858ff1aa8
+Create Date: 2024-04-03 10:24:31.131245
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '949c5b9cc18d'
+down_revision: Union[str, None] = '583858ff1aa8'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("country_code",
+                  sa.Column("emission_factor_value", sa.Float, nullable=True))
+    op.add_column("country_code",
+                  sa.Column("emission_factor_units",sa.String, nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column("country_code", "emission_factor_value")
+    op.drop_column("country_code", "emission_factor_units")