How do I instruct SQLAlchemy to create SQLite FTS3 tables on create
I would like SQLAlchemy to create an FTS3 table during .create_all() . What special options do I need to add so it knows to CREATE VIRTUAL TABLE ... USING FTS3(tokenizer=...) ?
As I know to implement this futer you must improve sqlite dialect to change create_table behavior.
But you can use this quick, but ugly solution with "monkeypatching"
# ugly monkeypatch
from sqlalchemy.dialects.sqlite.base import SQLiteDDLCompiler
old_create_table = SQLiteDDLCompiler.visit_create_table
def new_create_table(*args, **kwargs):
sql = old_create_table(*args, **kwargs)
# TODO
# 1) check table with FTS3
# 2) change sql to CREATE VIRTUAL TABLE ... USING FTS3(tokenizer=...)
print 'SQL: %s' % sql
return sql
SQLiteDDLCompiler.visit_create_table = new_create_table
# end of ugly monkey patch
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy import schema, MetaData, Column, Integer
metadata = MetaData()
Base = declarative_base(metadata=metadata)
class MyModel(Base):
__tablename__ = 'table'
id = Column(Integer, primary_key=True)
if __name__ == '__main__':
from sqlalchemy import create_engine
engine = create_engine('sqlite:///', echo=True)
metadata.bind = engine
metadata.create_all()
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