diff --git a/lib/freebies.db b/lib/freebies.db deleted file mode 100644 index 12beb1c96..000000000 Binary files a/lib/freebies.db and /dev/null differ diff --git a/lib/migrations/versions/52061ccfa385_first.py b/lib/migrations/versions/52061ccfa385_first.py new file mode 100644 index 000000000..ddfb7c051 --- /dev/null +++ b/lib/migrations/versions/52061ccfa385_first.py @@ -0,0 +1,28 @@ +"""first + +Revision ID: 52061ccfa385 +Revises: aae5e6efadd3 +Create Date: 2025-05-25 18:31:45.854663 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '52061ccfa385' +down_revision = 'aae5e6efadd3' +branch_labels = None +depends_on = None + + +def upgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + pass + # ### end Alembic commands ### + + +def downgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + pass + # ### end Alembic commands ### diff --git a/lib/migrations/versions/aae5e6efadd3_first.py b/lib/migrations/versions/aae5e6efadd3_first.py new file mode 100644 index 000000000..9726c0d12 --- /dev/null +++ b/lib/migrations/versions/aae5e6efadd3_first.py @@ -0,0 +1,37 @@ +"""first + +Revision ID: aae5e6efadd3 +Revises: 5f72c58bf48c +Create Date: 2025-05-25 18:27:35.448085 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'aae5e6efadd3' +down_revision = '5f72c58bf48c' +branch_labels = None +depends_on = None + + +def upgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + 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('company_id', sa.Integer(), nullable=True), + sa.Column('dev_id', sa.Integer(), nullable=True), + sa.ForeignKeyConstraint(['company_id'], ['companies.id'], name=op.f('fk_freebies_company_id_companies')), + sa.ForeignKeyConstraint(['dev_id'], ['devs.id'], name=op.f('fk_freebies_dev_id_devs')), + sa.PrimaryKeyConstraint('id') + ) + # ### end Alembic commands ### + + +def downgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + op.drop_table('freebies') + # ### end Alembic commands ### diff --git a/lib/models.py b/lib/models.py index 2681bee5a..dbd283671 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,5 +1,5 @@ from sqlalchemy import ForeignKey, Column, Integer, String, MetaData -from sqlalchemy.orm import relationship, backref +from sqlalchemy.orm import relationship from sqlalchemy.ext.declarative import declarative_base convention = { @@ -9,6 +9,12 @@ Base = declarative_base(metadata=metadata) +class CompanyDev(Base): + __tablename__ = 'company_dev' + + company_id = Column(Integer, ForeignKey('companies.id'), primary_key=True) + dev_id = Column(Integer, ForeignKey('devs.id'), primary_key=True) + class Company(Base): __tablename__ = 'companies' @@ -16,14 +22,55 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship('Freebie', back_populates='company') + devs = relationship('Dev', secondary='company_dev', back_populates='companies') + def __repr__(self): return f'' + def give_freebie(self, dev, item_name, value): + freebie = Freebie( + item_name=item_name, + value=value, + company_id=self.id, + dev_id=dev.id + ) + return freebie + + @classmethod + def oldest_company(cls, session): + return session.query(cls).order_by(cls.founding_year).first() + class Dev(Base): __tablename__ = 'devs' id = Column(Integer(), primary_key=True) - name= Column(String()) + name = Column(String()) + + freebies = relationship('Freebie', back_populates='dev') + companies = relationship('Company', secondary='company_dev', back_populates='devs') def __repr__(self): return f'' + + def received_one(self, item_name): + return any(freebie.item_name == item_name for freebie in self.freebies) + + def give_away(self, other_dev, freebie): + if freebie.dev_id == self.id: + freebie.dev_id = other_dev.id + +class Freebie(Base): + __tablename__ = 'freebies' + + id = Column(Integer, primary_key=True) + item_name = Column(String) + value = Column(Integer) + company_id = Column(Integer, ForeignKey('companies.id')) + dev_id = Column(Integer, ForeignKey('devs.id')) + + company = relationship('Company', back_populates='freebies') + dev = relationship('Dev', back_populates='freebies') + + def printer(self): + return f'{self.dev.name} owns a {self.item_name} from {self.company.name}' diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..5c2399952 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,49 @@ #!/usr/bin/env python3 # Script goes here! + +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() + +if __name__ == '__main__': + company = Company(name="Safaricom", founding_year = 1997) + session.add(company) + session.commit() + + dev = Dev(name = "Mike") + session.add(dev) + session.commit() + + freebie = company.give_freebie(dev, "Laptop", 1500 ) + session.add(freebie) + + session.commit() + + + # Tests(Uncomment them then run seed.py in the terminal) + + + + # print(freebie.printer()) + + # oldest = Company.oldest_company(session) + # print(f'The oldest company is {oldest.name} founded in {oldest.founding_year}') + + # has_laptop = dev.received_one('Laptop') + # print(f'Did {dev.name} receive a Laptop? {has_laptop}') + + # new_dev = Dev(name='Jane Smith') + # session.add(new_dev) + # session.commit() + # dev.give_away(new_dev, freebie) + # session.commit() + # print(freebie.printer()) +