0043_species_not_udf_model.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.db import migrations


class Migration(migrations.Migration):

    class RemoveSpeciesUdfs(migrations.RemoveField):

        def database_backwards(
                self, app_label, schema_editor, from_state, to_state):
            migrations.RunSQL(
                "ALTER TABLE treemap_species "
                "ADD COLUMN udfs hstore NOT NULL DEFAULT ''")

    dependencies = [
        ('treemap', '0042_auto_20170112_1603'),
    ]

    operations = [
        RemoveSpeciesUdfs(
            model_name='species',
            name='udfs',
        ),
    ]