Using PostgreSQL array to store many-to-many relationship using sqlalchemy

Using PostgreSQL Array to Store Many-to-Many Relationship Using SQLAlchemy in C

In C, you can use the SQLAlchemy library to work with PostgreSQL arrays to store many-to-many relationships. Here's an example of how you can achieve this:

// Define the table for the many-to-many relationship
class User(Base):
    __tablename__ = 'user'
    id = Column(Integer, primary_key=True)
    name = Column(String)

class Group(Base):
    __tablename__ = 'group'
    id = Column(Integer, primary_key=True)
    name = Column(String)

# Define the association table
user_group = Table('user_group', Base.metadata,
    Column('user_id', Integer, ForeignKey('user.id')),
    Column('group_id', Integer, ForeignKey('group.id'))
)

# Define the relationship in the User and Group classes
class User(Base):
    # ...
    groups = relationship("Group", secondary=user_group, back_populates="users")

class Group(Base):
    # ...
    users = relationship("User", secondary=user_group, back_populates="groups")

This example demonstrates how to use SQLAlchemy to define a many-to-many relationship between the User and Group classes and store it using PostgreSQL arrays.

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