open-webui/backend/open_webui/internal/migrations/001_initial_schema.py
Timothy Jaeryang Baek d3d161f723 wip
2024-12-10 00:54:13 -08:00

255 lines
8.1 KiB
Python

"""Peewee migrations -- 001_initial_schema.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."""
# We perform different migrations for SQLite and other databases
# This is because SQLite is very loose with enforcing its schema, and trying to migrate other databases like SQLite
# will require per-database SQL queries.
# Instead, we assume that because external DB support was added at a later date, it is safe to assume a newer base
# schema instead of trying to migrate from an older schema.
if isinstance(database, pw.SqliteDatabase):
migrate_sqlite(migrator, database, fake=fake)
else:
migrate_external(migrator, database, fake=fake)
def migrate_sqlite(migrator: Migrator, database: pw.Database, *, fake=False):
@migrator.create_model
class Auth(pw.Model):
id = pw.CharField(max_length=255, unique=True)
email = pw.CharField(max_length=255)
password = pw.CharField(max_length=255)
active = pw.BooleanField()
class Meta:
table_name = "auth"
@migrator.create_model
class Chat(pw.Model):
id = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
title = pw.CharField()
chat = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "chat"
@migrator.create_model
class ChatIdTag(pw.Model):
id = pw.CharField(max_length=255, unique=True)
tag_name = pw.CharField(max_length=255)
chat_id = pw.CharField(max_length=255)
user_id = pw.CharField(max_length=255)
timestamp = pw.BigIntegerField()
class Meta:
table_name = "chatidtag"
@migrator.create_model
class Document(pw.Model):
id = pw.AutoField()
collection_name = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255, unique=True)
title = pw.CharField()
filename = pw.CharField()
content = pw.TextField(null=True)
user_id = pw.CharField(max_length=255)
timestamp = pw.BigIntegerField()
class Meta:
table_name = "document"
@migrator.create_model
class Modelfile(pw.Model):
id = pw.AutoField()
tag_name = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
modelfile = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "modelfile"
@migrator.create_model
class Prompt(pw.Model):
id = pw.AutoField()
command = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
title = pw.CharField()
content = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "prompt"
@migrator.create_model
class Tag(pw.Model):
id = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255)
user_id = pw.CharField(max_length=255)
data = pw.TextField(null=True)
class Meta:
table_name = "tag"
@migrator.create_model
class User(pw.Model):
id = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255)
email = pw.CharField(max_length=255)
role = pw.CharField(max_length=255)
profile_image_url = pw.CharField(max_length=255)
timestamp = pw.BigIntegerField()
class Meta:
table_name = "user"
def migrate_external(migrator: Migrator, database: pw.Database, *, fake=False):
@migrator.create_model
class Auth(pw.Model):
id = pw.CharField(max_length=255, unique=True)
email = pw.CharField(max_length=255)
password = pw.TextField()
active = pw.BooleanField()
class Meta:
table_name = "auth"
@migrator.create_model
class Chat(pw.Model):
id = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
title = pw.TextField()
chat = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "chat"
@migrator.create_model
class ChatIdTag(pw.Model):
id = pw.CharField(max_length=255, unique=True)
tag_name = pw.CharField(max_length=255)
chat_id = pw.CharField(max_length=255)
user_id = pw.CharField(max_length=255)
timestamp = pw.BigIntegerField()
class Meta:
table_name = "chatidtag"
@migrator.create_model
class Document(pw.Model):
id = pw.AutoField()
collection_name = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255, unique=True)
title = pw.TextField()
filename = pw.TextField()
content = pw.TextField(null=True)
user_id = pw.CharField(max_length=255)
timestamp = pw.BigIntegerField()
class Meta:
table_name = "document"
@migrator.create_model
class Modelfile(pw.Model):
id = pw.AutoField()
tag_name = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
modelfile = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "modelfile"
@migrator.create_model
class Prompt(pw.Model):
id = pw.AutoField()
command = pw.CharField(max_length=255, unique=True)
user_id = pw.CharField(max_length=255)
title = pw.TextField()
content = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "prompt"
@migrator.create_model
class Tag(pw.Model):
id = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255)
user_id = pw.CharField(max_length=255)
data = pw.TextField(null=True)
class Meta:
table_name = "tag"
@migrator.create_model
class User(pw.Model):
id = pw.CharField(max_length=255, unique=True)
name = pw.CharField(max_length=255)
email = pw.CharField(max_length=255)
role = pw.CharField(max_length=255)
profile_image_url = pw.TextField()
timestamp = pw.BigIntegerField()
class Meta:
table_name = "user"
def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
"""Write your rollback migrations here."""
migrator.remove_model("user")
migrator.remove_model("tag")
migrator.remove_model("prompt")
migrator.remove_model("modelfile")
migrator.remove_model("document")
migrator.remove_model("chatidtag")
migrator.remove_model("chat")
migrator.remove_model("auth")