diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c96..d2ca171de 100644 Binary files a/lib/freebies.db and b/lib/freebies.db differ diff --git a/lib/migrations/versions/fdf636364222_create_freebies_table.py b/lib/migrations/versions/fdf636364222_create_freebies_table.py new file mode 100644 index 000000000..78b4ea01f --- /dev/null +++ b/lib/migrations/versions/fdf636364222_create_freebies_table.py @@ -0,0 +1,37 @@ +"""create_freebies_table + +Revision ID: fdf636364222 +Revises: 5f72c58bf48c +Create Date: 2024-01-05 09:45:34.848811 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'fdf636364222' +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('dev_id', sa.Integer(), nullable=True), + sa.Column('company_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..f98d9e4b5 100644 --- a/lib/models.py +++ b/lib/models.py @@ -16,14 +16,60 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + devs = relationship('Dev', backref = 'company') + freebies = relationship('Freebie', backref = 'company') + 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, 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()) + freebies = relationship('Freebie', backref = 'dev') + + # Dev.companies returns a collection of all the companies that the Dev has collected freebies from. + companies = relationship('Company', secondary = 'freebies', 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 == self: + freebie.dev = other_dev + return True + else: + 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', backref = 'freebies') + company = relationship('Company', backref = 'freebies') + + def __repr__(self): + return f'Freebie(Item={self.item_name}, ' + \ + f'value={self.value})' + + def print_details(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..fb87c0602 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,21 @@ #!/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.bind = engine +DBSession = sessionmaker(bind = engine) +session = DBSession() + +# Create instances of Company, Dev, and Freebie +company = Company(name='Example Company', founding_year=2020) +dev = Dev(name='John Doe') +freebie = Freebie(item_name='Example Item', value=10, dev=dev, company=company) + +# Add instances to the session and commit +session.add_all([company, dev, freebie]) +session.commit() \ No newline at end of file