diff --git a/freebies.db b/freebies.db new file mode 100644 index 000000000..d654e15a0 Binary files /dev/null and b/freebies.db differ diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..72cc7e582 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,16 @@ -#!/usr/bin/env python3 - from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker +from models import Company, Dev, Freebie + + +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() -from models import Company, Dev if __name__ == '__main__': - engine = create_engine('sqlite:///freebies.db') + import ipdb; ipdb.set_trace() + + session.close() + print("Session closed.") \ No newline at end of file diff --git a/lib/migrations/versions/create_freebies_table.py b/lib/migrations/versions/create_freebies_table.py new file mode 100644 index 000000000..6acddb9dd --- /dev/null +++ b/lib/migrations/versions/create_freebies_table.py @@ -0,0 +1,32 @@ +"""create freebies table + +Revision ID: abc123456789 + +Revises: 5f72c58bf48c + +Create Date: 2025-03-01 12:00:00.000000 + +""" + +from alembic import op +import sqlalchemy as sa + +revision = 'abc123456789' + +down_revision = '5f72c58bf48c' + +branch_labbels = None +depends_on = None + +def upgrade() -> None: + op.create_table('freebies', + sa.Column('id', sa.Integer(), nullable=False), + sa.Column('item_name', sa.String(), nullable=True), + sa.Column('value', sa.Integer(), nullable=True), + sa.Column('dev_id', sa.Integer(), sa.ForeignKey('devs.id'), nullable=True), + sa.Column('company_id', sa.Integer(), sa.ForeignKey('companies.id'), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + + def downgrade() -> None: + op.drop_table('freebies') \ No newline at end of file diff --git a/lib/models.py b/lib/models.py index 2681bee5a..44ef76b56 100644 --- a/lib/models.py +++ b/lib/models.py @@ -11,19 +11,70 @@ class Company(Base): __tablename__ = 'companies' - id = Column(Integer(), primary_key=True) name = Column(String()) founding_year = Column(Integer()) + freebies = relationship("Freebie", back_populates= "company") + devs = relationship("Dev", secondary="freebies", back_populates= "companies", overlaps= "freebies") + def __repr__(self): return f'' + + def give_freebie(self, dev, item_name, value): + freebie = Freebie(item_name=item_name, value=value, dev=dev, company=self) + return freebie + + @classmethod + def oldest_company(cls): + from sqlalchemy import create_engine + from sqlalchemy.orm import sessionmaker + engine = create_engine('sqlite:///freebies.db') + Session = sessionmaker(bind=engine) + session = Session() + oldest = session.query(cls).order_by(cls.founding_year).first() + session.close() + return oldest + class Dev(Base): __tablename__ = 'devs' - id = Column(Integer(), primary_key=True) - name= Column(String()) + name = Column(String()) + + freebies = relationship("Freebie", back_populates="dev", overlaps="companies") + companies = relationship("Company", secondary="freebies", back_populates="devs", overlaps= "freebies") def __repr__(self): return f'' + + def received_one(self, item_name): + for freebie in self.freebies: + if freebie.item_name == item_name: + return True + return False + + def give_away(self, other_dev, freebie): + if freebie in self.freebies: + freebie.dev = other_dev + return True + return False + + + +class Freebie(Base): + __tablename__ = 'freebies' + id = Column(Integer(), primary_key=True) + item_name = Column(String()) + value = Column(Integer()) + dev_id = Column(Integer, ForeignKey('devs.id')) + company_id = Column(Integer(), ForeignKey('companies.id')) + + dev = relationship("Dev", back_populates="freebies", overlaps="companies,devs") + company = relationship("Company", back_populates="freebies", overlaps="companies,devs") + + def __repr__(self): + return f'' + + def print_details(self): + return f"{self.dev.name} owns a {self.item_name} from {self.company.name}" \ No newline at end of file diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..5df22b1df 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,44 @@ #!/usr/bin/env python3 # Script goes here! +#!/usr/bin/env python3 +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker +from models import Base, Company, Dev, Freebie + +engine = create_engine('sqlite:///freebies.db') +Base.metadata.create_all(engine) +Session = sessionmaker(bind=engine) +session = Session() + +session.query(Freebie).delete() +session.query(Dev).delete() +session.query(Company).delete() + +company1 = Company(name="Coca cola", founding_year=1988) +company2 = Company(name="Pepsi", founding_year=1980) +company3 = Company(name="Nvida", founding_year=1980) +session.add(company1) +session.add(company2) +session.add(company3) + +dev1 = Dev(name="John") +dev2 = Dev(name="Janet") +dev3 = Dev(name="Ken") +session.add(dev1) +session.add(dev2) +session.add(dev3) + +session.commit() + +Freebie1 = Freebie(item_name= "T-shirt", value=15, dev=dev1, company= company1) +Freebie2 = Freebie(item_name= "Mug", value=10, dev=dev2, company=company2) +Freebie3 = Freebie(item_name= "Sticker", value=5, dev=dev1, company=company2) +session.add(Freebie1) +session.add(Freebie2) +session.add(Freebie3) + +session.commit() +session.close() +print ("Data added successfully!") +