open-webui / backend /open_webui /apps /webui /internal /migrations /006_migrate_timestamps_and_charfields.py
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GitHub deploy: 15b91d5242cbef8844a8eab8fc0885f7cc0f3f13
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"""Peewee migrations -- 006_migrate_timestamps_and_charfields.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."""
# Alter the tables with timestamps
migrator.change_fields(
"chatidtag",
timestamp=pw.BigIntegerField(),
)
migrator.change_fields(
"document",
timestamp=pw.BigIntegerField(),
)
migrator.change_fields(
"modelfile",
timestamp=pw.BigIntegerField(),
)
migrator.change_fields(
"prompt",
timestamp=pw.BigIntegerField(),
)
migrator.change_fields(
"user",
timestamp=pw.BigIntegerField(),
)
# Alter the tables with varchar to text where necessary
migrator.change_fields(
"auth",
password=pw.TextField(),
)
migrator.change_fields(
"chat",
title=pw.TextField(),
)
migrator.change_fields(
"document",
title=pw.TextField(),
filename=pw.TextField(),
)
migrator.change_fields(
"prompt",
title=pw.TextField(),
)
migrator.change_fields(
"user",
profile_image_url=pw.TextField(),
)
def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
"""Write your rollback migrations here."""
if isinstance(database, pw.SqliteDatabase):
# Alter the tables with timestamps
migrator.change_fields(
"chatidtag",
timestamp=pw.DateField(),
)
migrator.change_fields(
"document",
timestamp=pw.DateField(),
)
migrator.change_fields(
"modelfile",
timestamp=pw.DateField(),
)
migrator.change_fields(
"prompt",
timestamp=pw.DateField(),
)
migrator.change_fields(
"user",
timestamp=pw.DateField(),
)
migrator.change_fields(
"auth",
password=pw.CharField(max_length=255),
)
migrator.change_fields(
"chat",
title=pw.CharField(),
)
migrator.change_fields(
"document",
title=pw.CharField(),
filename=pw.CharField(),
)
migrator.change_fields(
"prompt",
title=pw.CharField(),
)
migrator.change_fields(
"user",
profile_image_url=pw.CharField(),
)