congress.db.migration.
alter_column_if_exists
(table_name, column_name, **kwargs)¶Alter a column only if it exists in the schema.
congress.db.migration.
alter_enum
(table, column, enum_type, nullable)¶congress.db.migration.
create_table_if_not_exist_psql
(table_name, values)¶congress.db.migration.
drop_table_if_exists
(table_name)¶congress.db.migration.
raise_if_offline
(func)¶Decorator for raising if a function is called in offline mode.
congress.db.migration.
rename_table_if_exists
(old_table_name, new_table_name)¶congress.db.migration.
schema_has_column
(table_name, column_name)¶Check whether the specified column exists in the current schema.
This method cannot be executed in offline mode.
congress.db.migration.
schema_has_table
(table_name)¶Check whether the specified table exists in the current schema.
This method cannot be executed in offline mode.
congress.db.migration.
skip_if_offline
(func)¶Decorator for skipping migrations in offline mode.
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