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"""Add access_request table to manage requests to access datastores.

Revision ID: 5e4a03ef0bf0
Revises: 41f6a59a61f2
Create Date: 2016-09-09 17:39:57.846309

"""
import sqlalchemy as sa
from alembic import op

# revision identifiers, used by Alembic.
revision = "5e4a03ef0bf0"
down_revision = "b347b202819b"


def upgrade():
    op.create_table(
        "access_request",
        sa.Column("created_on", sa.DateTime(), nullable=True),
        sa.Column("changed_on", sa.DateTime(), nullable=True),
        sa.Column("id", sa.Integer(), nullable=False),
        sa.Column("datasource_type", sa.String(length=200), nullable=True),
        sa.Column("datasource_id", sa.Integer(), nullable=True),
        sa.Column("changed_by_fk", sa.Integer(), nullable=True),
        sa.Column("created_by_fk", sa.Integer(), nullable=True),
        sa.ForeignKeyConstraint(["changed_by_fk"], ["ab_user.id"]),
        sa.ForeignKeyConstraint(["created_by_fk"], ["ab_user.id"]),
        sa.PrimaryKeyConstraint("id"),
    )


def downgrade():
    op.drop_table("access_request")