21 lines
776 B
Python
21 lines
776 B
Python
import sqlalchemy as sa
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from migrate.changeset.databases import sqlite,postgres,mysql,oracle
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from migrate.changeset import ansisql
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# Map SA dialects to the corresponding Migrate extensions
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dialects = {
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sa.engine.default.DefaultDialect : ansisql.ANSIDialect,
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sa.databases.sqlite.SQLiteDialect : sqlite.SQLiteDialect,
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sa.databases.postgres.PGDialect : postgres.PGDialect,
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sa.databases.mysql.MySQLDialect : mysql.MySQLDialect,
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sa.databases.oracle.OracleDialect : oracle.OracleDialect,
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}
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def get_engine_visitor(engine,name):
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return get_dialect_visitor(engine.dialect,name)
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def get_dialect_visitor(sa_dialect,name):
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sa_dialect_cls = sa_dialect.__class__
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migrate_dialect_cls = dialects[sa_dialect_cls]
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return migrate_dialect_cls.visitor(name)
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