From 57f6bfb68897c8b2ebd589ecfef26a2ab7e67b09 Mon Sep 17 00:00:00 2001 From: Victor Kinyanjui Ngigi Date: Wed, 28 May 2025 23:51:19 +0300 Subject: [PATCH] final commit --- lib/debug.py | 11 +++- lib/freebies.db | Bin 20480 -> 24576 bytes .../476da2a0424d_add_freebies_table.py | 37 ++++++++++++ .../versions/d49493c677f1_seeded_db.py | 28 +++++++++ lib/models.py | 56 +++++++++++++++++- lib/seed.py | 50 +++++++++++++++- 6 files changed, 178 insertions(+), 4 deletions(-) create mode 100644 lib/migrations/versions/476da2a0424d_add_freebies_table.py create mode 100644 lib/migrations/versions/d49493c677f1_seeded_db.py diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..75179ca50 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,16 @@ #!/usr/bin/env python3 from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker -from models import Company, Dev +from models import Company, Dev, Freebie if __name__ == '__main__': engine = create_engine('sqlite:///freebies.db') - import ipdb; ipdb.set_trace() + Session = sessionmaker(bind=engine) + session = Session() + + print(Company, Dev, Freebie) + + import ipdb + ipdb.set_trace() diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c963e832db481e7a7493e3029e691ac4dc..33c007c64b58e611239b313b1291e0d52a9f4cbe 100644 GIT binary patch delta 733 zcmaJ;L2DC17@eI>Hl!q(#;UDpi=&q|*ap%BLr=0Irhndt#I$;-Ai>n3e zW~tQ9zr(*#=3gMme?&wBfWD(oXmFUGe1jfc79(I8t`pN^jzKI3D>UflV&7(91mvM= zQQV;3CUdFZ!!>5-Vqa#32q?i*ZPoW_-yD)v-^#^Kh7rdA{X}2UF^@PxwP q0GBCa9=Rw&1SN0<3h|oRWwaZ43oi%~xCZ0#M#l_T*P%XvAO8Z2*3ftW delta 120 zcmZoTz}T>Wae}lUD+2=q2*UvLL>*&MRtCLzSzi7h3@m(74E((OJNfGQq&5o*EaTlQ r#dk}P$285{DB08^Db2(pd6U8yej#K5UXW1&K-Ks8Cr*%NL*)VhkJ1_o diff --git a/lib/migrations/versions/476da2a0424d_add_freebies_table.py b/lib/migrations/versions/476da2a0424d_add_freebies_table.py new file mode 100644 index 000000000..eaca1aa73 --- /dev/null +++ b/lib/migrations/versions/476da2a0424d_add_freebies_table.py @@ -0,0 +1,37 @@ +"""Add freebies table + +Revision ID: 476da2a0424d +Revises: 5f72c58bf48c +Create Date: 2025-05-28 22:41:17.544787 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '476da2a0424d' +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=False), + sa.Column('value', sa.Integer(), nullable=False), + 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/migrations/versions/d49493c677f1_seeded_db.py b/lib/migrations/versions/d49493c677f1_seeded_db.py new file mode 100644 index 000000000..dc9b3516a --- /dev/null +++ b/lib/migrations/versions/d49493c677f1_seeded_db.py @@ -0,0 +1,28 @@ +"""seeded db + +Revision ID: d49493c677f1 +Revises: 476da2a0424d +Create Date: 2025-05-28 23:15:48.931525 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'd49493c677f1' +down_revision = '476da2a0424d' +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..b83175a22 100644 --- a/lib/models.py +++ b/lib/models.py @@ -16,14 +16,68 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship( + 'Freebie', + backref=backref('company', lazy='joined') + ) + + devs = relationship( + 'Dev', + secondary='freebies', + viewonly=True, + backref='companies' + ) + def __repr__(self): return f'' + def give_freebie(self, dev, item_name, value): + from models import Freebie # optional if same file + new_freebie = Freebie( + item_name=item_name, + value=value, + company=self, + dev=dev + ) + return new_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', + backref=backref('dev', lazy='joined') + ) 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, dev, freebie): + if freebie in self.freebies: + freebie.dev = dev + + +class Freebie(Base): + __tablename__ = 'freebies' + + id = Column(Integer(), primary_key=True) + item_name = Column(String(), nullable=False) + value = Column(Integer(), nullable=False) + + dev_id = Column(Integer(), ForeignKey('devs.id')) + company_id = Column(Integer(), ForeignKey('companies.id')) + + def __repr__(self): + return f'' + + 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..483d2c188 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,51 @@ #!/usr/bin/env python3 -# Script goes here! +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', echo=False) + Session = sessionmaker(bind=engine) + session = Session() + + session.query(Company).delete() + session.query(Dev).delete() + session.query(Freebie).delete() + session.commit() + + # Create companies + c1 = Company(name='Tech Innovations Inc.', founding_year=2010) + c2 = Company(name='Eco Solutions Ltd.', founding_year=2015) + c3 = Company(name='HealthTech Corp.', founding_year=2018) + + # Create developers + d1 = Dev(name='Alice Johnson') + d2 = Dev(name='Bob Smith') + d3 = Dev(name='Charlie Brown') + # Add companies and developers to the session + session.add_all([c1, c2, c3]) + session.add_all([d1, d2, d3]) + # Commit the session to save companies and developers + session.commit() + + # Create freebies + f1 = Freebie(item_name='Smartphone', value=700, dev=d1, company=c1) + f2 = Freebie(item_name='Laptop', value=1200, dev=d2, company=c1) + f3 = Freebie(item_name='Eco-friendly Water Bottle', value=20, dev=d3, company=c2) + f4 = Freebie(item_name='Solar Charger', value=50, dev=d1, company=c2) + f5 = Freebie(item_name='Fitness Tracker', value=100, dev=d2, company=c3) + + # Add freebies to the session + session.add_all([f1, f2, f3, f4, f5]) + # Commit the session to save freebies + session.commit() + + print(f"{d1.name}'s freebies:") + for f in d1.freebies: + print(f" {f.item_name} for {f.company.name}") + + print(f"{d2.name}'s freebies:") + for f in d2.freebies: + print(f" {f.item_name} for {f.company.name}")