new migration.

migrations/versions/9d0a2766befe_.py

@@ -0,0 +1,57 @@
+"""empty message
+
+Revision ID: 9d0a2766befe
+Revises: 34508ec90fd5
+Create Date: 2020-06-12 03:36:00.842824
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '9d0a2766befe'
+down_revision = '34508ec90fd5'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('diet_record',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('generated_at', sa.TIMESTAMP(), nullable=False),
+    sa.Column('owner_id', sa.Integer(), nullable=False),
+    sa.Column('diet', sa.JSON(), nullable=False),
+    sa.ForeignKeyConstraint(['owner_id'], ['users.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    op.alter_column('foods', 'author',
+               existing_type=sa.INTEGER(),
+               nullable=False,
+               existing_server_default=sa.text('1'))
+    op.alter_column('foods', 'created_at',
+               existing_type=postgresql.TIMESTAMP(),
+               nullable=True,
+               existing_server_default=sa.text("timezone('Asia/Tehran'::text, CURRENT_TIMESTAMP)"))
+    op.alter_column('posts', 'authorid',
+               existing_type=sa.INTEGER(),
+               nullable=False)
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.alter_column('posts', 'authorid',
+               existing_type=sa.INTEGER(),
+               nullable=True)
+    op.alter_column('foods', 'created_at',
+               existing_type=postgresql.TIMESTAMP(),
+               nullable=False,
+               existing_server_default=sa.text("timezone('Asia/Tehran'::text, CURRENT_TIMESTAMP)"))
+    op.alter_column('foods', 'author',
+               existing_type=sa.INTEGER(),
+               nullable=True,
+               existing_server_default=sa.text('1'))
+    op.drop_table('diet_record')
+    # ### end Alembic commands ###