diff --git a/lib/__pycache__/models.cpython-38.pyc b/lib/__pycache__/models.cpython-38.pyc new file mode 100644 index 000000000..16c57a00b Binary files /dev/null and b/lib/__pycache__/models.cpython-38.pyc differ diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..ab45f5a52 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,16 @@ #!/usr/bin/env python3 +from faker import Faker +import random + from sqlalchemy import create_engine -from models import Company, Dev +from models import Company, Dev, Freebie, session + +fake = Faker() if __name__ == '__main__': - engine = create_engine('sqlite:///freebies.db') - import ipdb; ipdb.set_trace() + engine = create_engine('sqlite:///:memory:') + + import ipdb + ipdb.set_trace() diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c96..eca0fc44c 100644 Binary files a/lib/freebies.db and b/lib/freebies.db differ diff --git a/lib/migrations/versions/0b2ba6f06d01_added_freebie_table.py b/lib/migrations/versions/0b2ba6f06d01_added_freebie_table.py new file mode 100644 index 000000000..f806f039d --- /dev/null +++ b/lib/migrations/versions/0b2ba6f06d01_added_freebie_table.py @@ -0,0 +1,39 @@ +"""Added freebie table + +Revision ID: 0b2ba6f06d01 +Revises: 5f72c58bf48c +Create Date: 2026-02-03 14:21:26.762025 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '0b2ba6f06d01' +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/migrations/versions/8806fa7f641d_updated_freebie_table_and_relationship_.py b/lib/migrations/versions/8806fa7f641d_updated_freebie_table_and_relationship_.py new file mode 100644 index 000000000..fc1b08ecb --- /dev/null +++ b/lib/migrations/versions/8806fa7f641d_updated_freebie_table_and_relationship_.py @@ -0,0 +1,28 @@ +"""Updated Freebie table and relationship columns in associated tables + +Revision ID: 8806fa7f641d +Revises: 0b2ba6f06d01 +Create Date: 2026-02-03 22:34:28.219506 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '8806fa7f641d' +down_revision = '0b2ba6f06d01' +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/models.py b/lib/models.py index 2681bee5a..4d4a199e4 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,6 +1,7 @@ -from sqlalchemy import ForeignKey, Column, Integer, String, MetaData -from sqlalchemy.orm import relationship, backref +from sqlalchemy import ForeignKey, Column, Integer, String, MetaData, create_engine +from sqlalchemy.orm import relationship, backref, sessionmaker from sqlalchemy.ext.declarative import declarative_base +from sqlalchemy.ext.associationproxy import association_proxy convention = { "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s", @@ -8,22 +9,87 @@ metadata = MetaData(naming_convention=convention) Base = declarative_base(metadata=metadata) +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() + class Company(Base): __tablename__ = 'companies' - + # attributes id = Column(Integer(), primary_key=True) name = Column(String()) founding_year = Column(Integer()) + # relationships + freebies = relationship('Freebie', back_populates='company') + devs = association_proxy('freebies', 'dev', + creator=lambda dev: Freebie(dev=dev)) + + # methods + # create new freebie instance & assign to comnpany and dev + def give_freebie(self, dev, item_name, value): + freebie = Freebie( + item_name=item_name, + value=value, + company=self, + dev=dev + ) + session.add(freebie) + session.commit() + return freebie + + def oldest_company(): + return session.query(Company).order_by(Company.founding_year).first() + def __repr__(self): return f'' + class Dev(Base): __tablename__ = 'devs' id = Column(Integer(), primary_key=True) - name= Column(String()) + name = Column(String()) + + # relationships + freebies = relationship('Freebie', back_populates='dev') + companies = association_proxy('freebies', 'company', + creator=lambda company: Freebie(company=company)) + + # methods + 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, dev, freebie): + if freebie.dev == self: + freebie.dev = dev + session.commit() def __repr__(self): return f'' + + +class Freebie(Base): + __tablename__ = 'freebies' + + id = Column(Integer(), primary_key=True) + item_name = Column(String()) + value = Column(Integer()) + + # relationships and association object + 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') + + # i have not idea what i am doing + def print_details(self): + print(f"{self.dev.name} owns a {self.item_name} from {self.company.name}") + + def __repr__(self): + return f'' diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..eb7b96bfa 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,74 @@ #!/usr/bin/env python3 +from faker import Faker +import random +from random import choice as rc +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker -# Script goes here! +from models import Company, Dev, Freebie + +fake = Faker() + +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() + + +def create_companies(): + companies = [ + Company( + name=fake.company(), + founding_year=fake.year(), + ) + for i in range(20)] + session.add_all(companies) + session.commit() + return companies + + +def create_devs(): + devs = [ + Dev( + name=fake.name() + ) + for i in range(40)] + session.add_all(devs) + session.commit() + return devs + + +def create_freebies(): + freebies = [ + Freebie( + item_name=fake.word(), + value=random.randint(0, 20) + ) + for i in range(100)] + session.add_all(freebies) + session.commit() + return freebies + + +def delete_records(): + session.query(Company).delete() + session.query(Dev).delete() + session.query(Freebie).delete() + session.commit() + + +def relate_one_to_many(companies, devs, freebies): + for freebie in freebies: + freebie.company = rc(companies) + freebie.dev = rc(devs) + + session.add_all(freebies) + session.commit() + return companies, devs, freebies + + +if __name__ == "__main__": + delete_records() + companies = create_companies() + devs = create_devs() + freebies = create_freebies() + companies, devs, freebies = relate_one_to_many(companies, devs, freebies)