"""add_project_title_field

Revision ID: ef097a0b1f3a
Revises: d9be27212164
Create Date: 2020-07-30 12:09:37.016997

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = 'ef097a0b1f3a'
down_revision = 'd9be27212164'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    conn = op.get_bind()

    op.add_column('Project', sa.Column('title', sa.String(), nullable=True))

    conn.execute('''
        UPDATE "Project" as project
        SET title=project_type.name
        FROM "ProjectType" as project_type
        WHERE project_type.id = project.project_type_id
    ''')

    op.alter_column('Project', 'title', existing_type=sa.String(), nullable=False)
    op.drop_constraint('fk_Project_project_type_id_ProjectType', 'Project', type_='foreignkey')
    op.drop_column('Project', 'project_type_id')
    op.drop_table('ProjectType')
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('ProjectType',
                    sa.Column('id', sa.INTEGER(), server_default=sa.text('nextval(\'"ProjectType_id_seq"\'::regclass)'),
                              autoincrement=True, nullable=False),
                    sa.Column('name', sa.VARCHAR(), autoincrement=False, nullable=False),
                    sa.PrimaryKeyConstraint('id', name='pk_ProjectType')
                    )
    op.add_column('Project', sa.Column('project_type_id', sa.INTEGER(), autoincrement=False, nullable=False))
    op.create_foreign_key('fk_Project_project_type_id_ProjectType', 'Project', 'ProjectType', ['project_type_id'], ['id'])
    op.drop_column('Project', 'title')
    # ### end Alembic commands ###