it converts a django model to a sqlalchemy declaration
Project description
it converts a django model to a sqlalchemy declaration.
Requirements
Python: ? (not tested)
Django: 1.9 ~ 2.0 (not tested)
SQLAlchemy: 0.9 ~ 1.2 (not tested)
Installation
$ pip install d2aUsage
altogether
Example: you make models_sqla.py at a directory which models.py has been placed on.
And write like the following to the models_sqla.py:
from d2a import transfer from . import models transfer(models, globals())That’s all, you can import sqlalchemy declaration made from django model.
Example: demo/models.py and demo/models_sqla.py exist.
>>> from demo import models >>> models. # tab completion models.Author( models.Category( models.Sales( models.uuid models.Book( models.CategoryRelation( models.models >>> models.Book <class 'demo.models.Book'> >>> models.Book. # tab completion models.Book.DoesNotExist( models.Book.delete( models.Book.price models.Book.MultipleObjectsReturned( models.Book.description models.Book.refresh_from_db( models.Book.add_to_class( models.Book.from_db( models.Book.sales models.Book.author models.Book.full_clean( models.Book.save( models.Book.author_id models.Book.get_deferred_fields( models.Book.save_base( models.Book.category models.Book.id models.Book.serializable_value( models.Book.check( models.Book.mro( models.Book.title models.Book.clean( models.Book.objects models.Book.unique_error_message( models.Book.clean_fields( models.Book.pk models.Book.validate_unique( >>> from demo import models_sqla >>> models_sqla. # tab completion models_sqla.Author( models_sqla.BookCategory( models_sqla.CategoryRelation( models_sqla.models models_sqla.Book( models_sqla.Category( models_sqla.Sales( models_sqla.transfer( models_sqla.Book( models_sqla.CategoryRelation( models_sqla.models >>> models_sqla.Book <class 'd2a.alchemy.book'> >>> models_sqla.Book. # tab completion models_sqla.Book.author_id models_sqla.Book.description models_sqla.Book.metadata models_sqla.Book.price models_sqla.Book.category models_sqla.Book.id models_sqla.Book.mro( models_sqla.Book.title
single
You should write like the following:
>>> from d2a import declare >>> from demo.models import Sales >>> sales = declare(Sales) >>> sales <class 'd2a.alchemy.sales'> >>> sales.__table__ Table('sales', MetaData(bind=None), Column('id', BIGINT(), table=<sales>, primary_key=True, nullable=False), Column('book_id', CHAR(length=32), ForeignKey('book.id'), table=<sales>), Column('sold', DateTime(), table=<sales>), schema=None)
Links
History
- 0.0.1:
first release (2017-12-27)
- 0.0.2:
it supported m2m field.
it limited django version less than 1.9.
- 0.0.3:
it got easy to declare custom field.
transfer method can define secondary table.
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