79 lines
2.9 KiB
Python
79 lines
2.9 KiB
Python
"""Peewee migrations -- 008_20250311_191232_add_session_model.py.
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Some examples (model - class or model name)::
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> Model = migrator.orm['table_name'] # Return model in current state by name
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> Model = migrator.ModelClass # Return model in current state by name
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> migrator.sql(sql) # Run custom SQL
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> migrator.run(func, *args, **kwargs) # Run python function with the given args
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> migrator.create_model(Model) # Create a model (could be used as decorator)
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> migrator.remove_model(model, cascade=True) # Remove a model
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> migrator.add_fields(model, **fields) # Add fields to a model
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> migrator.change_fields(model, **fields) # Change fields
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> migrator.remove_fields(model, *field_names, cascade=True)
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> migrator.rename_field(model, old_field_name, new_field_name)
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> migrator.rename_table(model, new_table_name)
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> migrator.add_index(model, *col_names, unique=False)
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> migrator.add_not_null(model, *field_names)
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> migrator.add_default(model, field_name, default)
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> migrator.add_constraint(model, name, sql)
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> migrator.drop_index(model, *col_names)
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> migrator.drop_not_null(model, *field_names)
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> migrator.drop_constraints(model, *constraints)
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"""
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from contextlib import suppress
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import peewee as pw
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from peewee_migrate import Migrator
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with suppress(ImportError):
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import playhouse.postgres_ext as pw_pext
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def migrate(migrator: Migrator, database: pw.Database, *, fake=False):
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"""Create the session table for storing application session information."""
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table_exists = False
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# Check if the table already exists
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try:
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database.execute_sql("SELECT id FROM session LIMIT 1")
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# If we reach here, the table exists
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table_exists = True
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except pw.OperationalError:
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# Table doesn't exist, safe to create
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pass
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# Create the Session model - this registers it in migrator.orm as 'Session'
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@migrator.create_model
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class Session(pw.Model):
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id = pw.AutoField()
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created_at = pw.DateTimeField()
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updated_at = pw.DateTimeField()
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start_time = pw.DateTimeField()
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command_line = pw.TextField(null=True)
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program_version = pw.TextField(null=True)
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machine_info = pw.TextField(null=True)
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class Meta:
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table_name = "session"
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# FIX: Explicitly register the model under the lowercase table name key
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# This ensures that later migrations can access it via either:
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# - migrator.orm['Session'] (class name)
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# - migrator.orm['session'] (table name)
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if 'Session' in migrator.orm:
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migrator.orm['session'] = migrator.orm['Session']
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# Only return after model registration is complete
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if table_exists:
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return
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def rollback(migrator: Migrator, database: pw.Database, *, fake=False):
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"""Remove the session table."""
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migrator.remove_model('session') |