bulk rename to flupdt, add CLI, add README, add .gitignore
Signed-off-by: ahuston-0 <aliceghuston@gmail.com>
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#!/usr/bin/env python3
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from sqlalchemy import Column, Integer, String, ForeignKey, Table
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from sqlalchemy.orm import relationship, backref
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from sqlalchemy.ext.declarative import declarative_base
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Base = declarative_base()
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author_publisher = Table(
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"author_publisher",
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Base.metadata,
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Column("author_id", Integer, ForeignKey("author.author_id")),
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Column("publisher_id", Integer, ForeignKey("publisher.publisher_id")),
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)
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book_publisher = Table(
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"book_publisher",
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Base.metadata,
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Column("book_id", Integer, ForeignKey("book.book_id")),
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Column("publisher_id", Integer, ForeignKey("publisher.publisher_id")),
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)
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class Author(Base):
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__tablename__ = "author"
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author_id = Column(Integer, primary_key=True)
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first_name = Column(String)
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last_name = Column(String)
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books = relationship("Book", backref=backref("author"))
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publishers = relationship(
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"Publisher", secondary=author_publisher, back_populates="authors"
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)
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class Book(Base):
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__tablename__ = "book"
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book_id = Column(Integer, primary_key=True)
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author_id = Column(Integer, ForeignKey("author.author_id"))
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title = Column(String)
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publishers = relationship(
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"Publisher", secondary=book_publisher, back_populates="books"
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)
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class Publisher(Base):
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__tablename__ = "publisher"
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publisher_id = Column(Integer, primary_key=True)
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name = Column(String)
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authors = relationship(
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"Author", secondary=author_publisher, back_populates="publishers"
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)
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books = relationship("Book", secondary=book_publisher, back_populates="publishers")
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