diff --git a/lib/connect.py b/lib/connect.py new file mode 100644 index 000000000..d6abe86d2 --- /dev/null +++ b/lib/connect.py @@ -0,0 +1,6 @@ +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker + +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() \ No newline at end of file diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c96..453de2816 100644 Binary files a/lib/freebies.db and b/lib/freebies.db differ diff --git a/lib/migrations/versions/5337fbaa6c34_added_models.py b/lib/migrations/versions/5337fbaa6c34_added_models.py new file mode 100644 index 000000000..ea82e9d60 --- /dev/null +++ b/lib/migrations/versions/5337fbaa6c34_added_models.py @@ -0,0 +1,37 @@ +"""Added models + +Revision ID: 5337fbaa6c34 +Revises: 5f72c58bf48c +Create Date: 2023-09-11 20:42:37.635829 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '5337fbaa6c34' +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..e615c2b0b 100644 --- a/lib/models.py +++ b/lib/models.py @@ -2,6 +2,8 @@ from sqlalchemy.orm import relationship, backref from sqlalchemy.ext.declarative import declarative_base +from connect import session + convention = { "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s", } @@ -16,6 +18,24 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship('Freebie', backref=backref('company')) + devs = relationship("Dev", secondary="freebies", back_populates="companies") + + def give_freebie(self, dev, item_name, value): + freebie = Freebie( + item_name=item_name, + value=value, + company_id = self.id, + dev_id = dev.id + ) + session.add(freebie) + session.commit() + + @classmethod + def oldest_company(cls): + company = session.query(cls).order_by(cls.founding_year).first() + return company + def __repr__(self): return f'' @@ -25,5 +45,41 @@ class Dev(Base): id = Column(Integer(), primary_key=True) name= Column(String()) + freebies = relationship('Freebie', backref=backref('dev')) + companies = relationship("Company", secondary="freebies", back_populates="devs") + + def give_away(self, dev, freebie): + if freebie.dev == self: + freebie.dev == dev + session.commit() + + + @classmethod + def received_one(cls, item_name): + dev = session.query(cls).filter_by(name=item_name).first() + if dev: + return True + else: + return False + def __repr__(self): return f'' + +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 print_details(self): + return f"{self.dev.name} owns a {self.item_name} from {self.company.name}" + + def __repr__(self): + + return f'Freebie(id={self.id})' \ No newline at end of file diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..45963bfa4 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,66 @@ #!/usr/bin/env python3 -# Script goes here! +#!/usr/bin/env python3 + +from faker import Faker +import random + +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker + +from models import Company, Dev, Freebie + +if __name__ == '__main__': + engine = create_engine('sqlite:///freebies.db') + Session = sessionmaker(bind=engine) + session = Session() + + session.query(Company).delete() + session.query(Dev).delete() + session.query(Freebie).delete() + + fake = Faker() + + years = [2000, 2001, 2002, 2003, 2004, 2005] + + companies = [] + for i in range(10): + company = Company( + name=fake.unique.name(), + founding_year=random.choice(years), + ) + + # add and commit individually to get IDs back + session.add(company) + session.commit() + + companies.append(company) + + devs = [] + for i in range(10): + dev = Dev( + name=fake.unique.name(), + ) + + # add and commit individually to get IDs back + session.add(dev) + session.commit() + + devs.append(dev) + + freebies = [] + for company in companies: + for i in range(random.randint(1,5)): + + freebie = Freebie( + item_name= fake.unique.name(), + value = random.randint(5, 100), + company_id=company.id, + dev_id = devs[i].id + ) + + freebies.append(freebie) + + session.bulk_save_objects(freebies) + session.commit() + session.close() \ No newline at end of file