diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..929af93b4 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,38 @@ #!/usr/bin/env python3 + +from sqlalchemy import create_engine + +from models import Company, Dev, Freebie + from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker -from models import Company, Dev if __name__ == '__main__': engine = create_engine('sqlite:///freebies.db') - import ipdb; ipdb.set_trace() + Session = sessionmaker(bind=engine) + session = Session() + import ipdb + + + + + + dev1 = session.query(Dev).filter(Dev.name == "Brandy Anderson").first() + dev1 + # Dev(id=5, name=Brandy Anderson) + + freebie = session.query(Freebie).first() + freebie + # Freebie(id=1, item_name=what, value=80, company_id=1, dev_id=5) + + devs = session.query(Dev).first() + devs + # Dev(id=1, name=Kathleen Farmer) + + dev1.give_away(devs, freebie) + # freebie doesnot belong to the dev + # Freebie(id=1, item_name=what, value=80, company_id=1, dev_id=5) + + ipdb.set_trace() diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c96..5329e58f6 100644 Binary files a/lib/freebies.db and b/lib/freebies.db differ diff --git a/lib/migrations/versions/766cd3d59006_adds_freebie.py b/lib/migrations/versions/766cd3d59006_adds_freebie.py new file mode 100644 index 000000000..d59fbbf4a --- /dev/null +++ b/lib/migrations/versions/766cd3d59006_adds_freebie.py @@ -0,0 +1,37 @@ +"""adds freebie + +Revision ID: 766cd3d59006 +Revises: 5f72c58bf48c +Create Date: 2025-05-29 17:51:48.855250 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '766cd3d59006' +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..5888eb1ac 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,7 +1,45 @@ +# from sqlalchemy import ForeignKey, Column, Integer, String, MetaData +# from sqlalchemy.orm import relationship, backref +# from sqlalchemy.ext.declarative import declarative_base + +# convention = { +# "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s", +# } +# metadata = MetaData(naming_convention=convention) + +# Base = declarative_base(metadata=metadata) + +# class Company(Base): +# __tablename__ = 'companies' + +# id = Column(Integer(), primary_key=True) +# name = Column(String()) +# founding_year = Column(Integer()) + +# def __repr__(self): +# return f'' + +# class Dev(Base): +# __tablename__ = 'devs' + +# id = Column(Integer(), primary_key=True) +# name= Column(String()) + +# def __repr__(self): +# return f'' + + from sqlalchemy import ForeignKey, Column, Integer, String, MetaData from sqlalchemy.orm import relationship, backref from sqlalchemy.ext.declarative import declarative_base +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker + +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() + convention = { "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s", } @@ -9,6 +47,7 @@ Base = declarative_base(metadata=metadata) + class Company(Base): __tablename__ = 'companies' @@ -16,14 +55,82 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship('Freebie', backref=backref('company')) + + devs = relationship('Dev', secondary='freebies', + back_populates='companies', viewonly=True) + + def give_freebie(self, dev, item_name, value): + + print("give_freebie cold") + + feebie = Freebie(dev_id=dev.id, company_id=self.id, + item_name=item_name, value=value) + session.add(feebie) + session.commit() + return feebie + + @classmethod + def oldest_company(cls): + return session.query(Company).order_by(Company.founding_year).first() + def __repr__(self): - return f'' + return f'Company(id={self.id}, ' + \ + f'name={self.name}, ' + \ + f'founding-year={self.founding_year})' + class Dev(Base): __tablename__ = 'devs' id = Column(Integer(), primary_key=True) - name= Column(String()) + name = Column(String()) + + freebies = relationship('Freebie', backref=backref('dev')) + + companies = relationship( + 'Company', secondary='freebies', back_populates='devs', viewonly=True) + + def received_one(self, item_name): + + # return freebie.item_name == item_name for freebie in self.freebies + for freebie in self.freebies: + if freebie.item_name == item_name: + return True + return False + + def give_away(self, dev, freebie): + print("freebie doesnot belong to the dev") + if freebie.dev != self: + print("freebie doesnot belong to the dev") + return + freebie.dev = dev + return freebie + + def __repr__(self): + return f'Dev(id={self.id}, ' + \ + f'name={self.name})' + + +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')) + + def print_details(self): + return f"{self.dev.name} owns a {self.item_name} from {self.company.name}" def __repr__(self): - return f'' + return f'Freebie(id={self.id}, ' + \ + f'item_name={self.item_name}, ' + \ + f'value={self.value}, ' + \ + f'company_id={self.company_id}, ' + \ + f'dev_id={self.dev_id})' + + +session.close() diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..f8646084a 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,66 @@ #!/usr/bin/env python3 -# Script goes here! + +from faker import Faker +import random +from models import Company, Dev, Freebie + +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker + +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() + +companies = [] +for i in range(8): + company = Company( + name=fake.unique.company(), + founding_year=random.randint(1970, 2025) + ) + + session.add(company) + session.commit() + + companies.append(company) + +devs = [] +for i in range(8): + dev = Dev( + name=fake.name() + ) + + session.add(dev) + session.commit() + + devs.append(dev) + +freebies = [] +for company in companies: + for i in range(random.randint(1, 4)): + dev = random.choice(devs) + if company not in dev.companies: + dev.companies.append(company) + session.add(dev) + session.commit() + + freebie = Freebie( + item_name=fake.unique.word(), + value=random.randint(75, 520), + company_id=company.id, + dev_id=dev.id + ) + + freebies.append(freebie) + +session.bulk_save_objects(freebies) +session.commit() + +session.close()