gear-orders/migrations/001_init.py

"""Peewee migrations -- 001_init.py.

Some examples (model - class or model name)::

    > Model = migrator.orm['table_name']            # Return model in current state by name
    > Model = migrator.ModelClass                   # Return model in current state by name

    > migrator.sql(sql)                             # Run custom SQL
    > migrator.run(func, *args, **kwargs)           # Run python function with the given args
    > migrator.create_model(Model)                  # Create a model (could be used as decorator)
    > migrator.remove_model(model, cascade=True)    # Remove a model
    > migrator.add_fields(model, **fields)          # Add fields to a model
    > migrator.change_fields(model, **fields)       # Change fields
    > migrator.remove_fields(model, *field_names, cascade=True)
    > migrator.rename_field(model, old_field_name, new_field_name)
    > migrator.rename_table(model, new_table_name)
    > migrator.add_index(model, *col_names, unique=False)
    > migrator.add_not_null(model, *field_names)
    > migrator.add_default(model, field_name, default)
    > migrator.add_constraint(model, name, sql)
    > migrator.drop_index(model, *col_names)
    > migrator.drop_not_null(model, *field_names)
    > migrator.drop_constraints(model, *constraints)

"""

from contextlib import suppress

import peewee as pw
from peewee_migrate import Migrator


with suppress(ImportError):
    import playhouse.postgres_ext as pw_pext


def migrate(migrator: Migrator, database: pw.Database, *, fake=False):
    """Write your migrations here."""
    
    @migrator.create_model
    class BaseModel(pw.Model):
        id = pw.AutoField()

        class Meta:
            table_name = "basemodel"

    @migrator.create_model
    class User(pw.Model):
        id = pw.AutoField()
        telegram_username = pw.TextField(unique=True)
        telegram_chat_id = pw.IntegerField()

        class Meta:
            table_name = "user"

    @migrator.create_model
    class DomSubUsers(pw.Model):
        id = pw.AutoField()
        dom = pw.ForeignKeyField(column_name='dom_id', field='id', model=migrator.orm['user'])
        sub = pw.ForeignKeyField(column_name='sub_id', field='id', model=migrator.orm['user'])

        class Meta:
            table_name = "dom_sub"
            indexes = [(('dom_id', 'sub_id'), True)]

    @migrator.create_model
    class Order(pw.Model):
        id = pw.AutoField()
        name = pw.TextField()
        weight = pw.IntegerField()
        repeat = pw.FloatField()

        class Meta:
            table_name = "order"

    @migrator.create_model
    class OrdersPool(pw.Model):
        id = pw.AutoField()
        name = pw.TextField()

        class Meta:
            table_name = "orders_pool"

    @migrator.create_model
    class PunishmentStatus(pw.Model):
        id = pw.AutoField()
        confirmed_at = pw.DateTimeField(null=True)
        created_at = pw.DateTimeField()
        mastodon_id = pw.TextField()
        text = pw.TextField()

        class Meta:
            table_name = "punishment_status"

    @migrator.create_model
    class OrderStatus(pw.Model):
        id = pw.AutoField()
        confirmed_at = pw.DateTimeField(null=True)
        created_at = pw.DateTimeField()
        due_at = pw.DateTimeField()
        mastodon_id = pw.TextField()
        punishment = pw.ForeignKeyField(column_name='punishment_id', field='id', model=migrator.orm['punishment_status'], null=True)
        text = pw.TextField()

        class Meta:
            table_name = "order_status"

    @migrator.create_model
    class Repeat(pw.Model):
        id = pw.AutoField()
        count = pw.IntegerField(default=0)
        orders = pw.TextField()
        probability = pw.FloatField()

        class Meta:
            table_name = "repeat"

    @migrator.create_model
    class SkipDay(pw.Model):
        id = pw.AutoField()
        date = pw.DateField(unique=True)

        class Meta:
            table_name = "skip_day"


def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
    """Write your rollback migrations here."""
    
    migrator.remove_model('skip_day')

    migrator.remove_model('repeat')

    migrator.remove_model('order_status')

    migrator.remove_model('punishment_status')

    migrator.remove_model('orders_pool')

    migrator.remove_model('order')

    migrator.remove_model('dom_sub')

    migrator.remove_model('user')

    migrator.remove_model('basemodel')