diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..c7fb2bdeb 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,9 @@ #!/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, session if __name__ == '__main__': - engine = create_engine('sqlite:///freebies.db') import ipdb; ipdb.set_trace() diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c96..65684d557 100644 Binary files a/lib/freebies.db and b/lib/freebies.db differ diff --git a/lib/freebies.db-journal b/lib/freebies.db-journal new file mode 100644 index 000000000..884e833ce Binary files /dev/null and b/lib/freebies.db-journal differ diff --git a/lib/migrations/versions/40e2319e8a51_add_print_details_method_to_freebie_.py b/lib/migrations/versions/40e2319e8a51_add_print_details_method_to_freebie_.py new file mode 100644 index 000000000..2a1004fca --- /dev/null +++ b/lib/migrations/versions/40e2319e8a51_add_print_details_method_to_freebie_.py @@ -0,0 +1,28 @@ +"""Add print_details Method to Freebie Model + +Revision ID: 40e2319e8a51 +Revises: de2c8c31ab7f +Create Date: 2023-08-19 17:19:54.653554 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '40e2319e8a51' +down_revision = 'de2c8c31ab7f' +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/migrations/versions/de2c8c31ab7f_fixed_back_populates.py b/lib/migrations/versions/de2c8c31ab7f_fixed_back_populates.py new file mode 100644 index 000000000..ec4ef64c6 --- /dev/null +++ b/lib/migrations/versions/de2c8c31ab7f_fixed_back_populates.py @@ -0,0 +1,28 @@ +"""fixed back_populates + +Revision ID: de2c8c31ab7f +Revises: e256848f0940 +Create Date: 2023-08-19 16:44:28.392322 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'de2c8c31ab7f' +down_revision = 'e256848f0940' +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/migrations/versions/e256848f0940_add_freebie_model.py b/lib/migrations/versions/e256848f0940_add_freebie_model.py new file mode 100644 index 000000000..96dc270ae --- /dev/null +++ b/lib/migrations/versions/e256848f0940_add_freebie_model.py @@ -0,0 +1,37 @@ +"""Add Freebie Model + +Revision ID: e256848f0940 +Revises: 5f72c58bf48c +Create Date: 2023-08-19 16:23:11.154674 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'e256848f0940' +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..b35a9da7d 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, desc +from sqlalchemy.orm import relationship, 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", @@ -9,6 +10,10 @@ Base = declarative_base(metadata=metadata) +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() + class Company(Base): __tablename__ = 'companies' @@ -16,8 +21,22 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship('Freebie', back_populates='company', cascade='all, delete-orphan') + devs = association_proxy('freebies', 'dev', creator=lambda de: Freebie(dev=de)) + def __repr__(self): return f'' + + def give_freebie(self, dev, item_name, value): + new_freebie = Freebie(item_name=item_name, value=value, company=self, dev=dev) + session.add(new_freebie) + session.commit() + return new_freebie + + @classmethod + def oldest_company(cls): + oldest_co = session.query(cls).order_by(cls.founding_year).first() + return oldest_co class Dev(Base): __tablename__ = 'devs' @@ -25,5 +44,44 @@ class Dev(Base): id = Column(Integer(), primary_key=True) name= Column(String()) + freebies = relationship('Freebie', back_populates='dev', cascade='all, delete-orphan') + companies = association_proxy('freebies', 'company', creator=lambda co: Freebie(company=co)) + def __repr__(self): return f'' + + def received_one(self, item_name): + for fb in [freebie.item_name for freebie in self.freebies]: + if fb == item_name: + return True + return False + + def give_away(self, dev, freebie): + if freebie in self.freebies: + session.query(Freebie).filter(Freebie.id == freebie.id).update({Freebie.dev_id: dev.id}) + print(f'{self.name} gave away their {freebie.item_name} to {dev.name}.') + else: + print(f'{self.name} does not have a {freebie.item_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')) + + company = relationship('Company', back_populates='freebies') + dev = relationship('Dev', back_populates='freebies') + + def __repr__(self): + return f'' + + def print_details(self): + return f'{self.dev.name} owns a {self.item_name} from {self.company.name}' + + +#import ipdb; ipdb.set_trace() diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..6a9a4062f 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,44 @@ #!/usr/bin/env python3 -# Script goes here! +from random import choice as rc +import random + +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker + +from models import Company, Dev, Freebie + +engine = create_engine('sqlite:///freebies.db') +Session = sessionmaker(bind=engine) +session = Session() + +co_names = ['Facebook', 'Instagram', 'MySpace', 'Reddit', 'Neighborly', 'Walmart', 'Target', 'CostCo'] +dev_names = ['Jake', 'Jerry', 'Jan', 'Mike', 'Bob', 'Chris', 'Jon', 'Sarah', 'Beth', 'Ben', 'Jill', 'Jake', 'Jennifer', 'Sam', 'Samantha', 'Eduardo', 'Amber', 'Melonie', 'Daryl', 'Chloe'] +fb_names = ['Shirt', 'Pants', 'Scarf', 'Socks', 'Face Mask', 'Tie', 'Jacket', 'Earings', 'Ring', 'Watch', 'Backpack', 'Draw String Bag', 'Umbrella'] + +def create_records(): + companies = [Company(name=co_names[i], founding_year=random.randint(1800,2000)) for i in range(8)] + devs = [Dev(name=rc(dev_names)) for i in range(500)] + freebies = [Freebie(item_name=rc(fb_names), value=random.randint(0, 100)) for i in range(2000)] + session.add_all(companies + devs + freebies) + session.commit() + return companies, devs, 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, devs, freebies = create_records() + companies, devs, freebies = relate_one_to_many(companies, devs, freebies)