From 4fa0da064b0b4b50b1414541b49a0e0093bdc310 Mon Sep 17 00:00:00 2001 From: Jeff Mbithi Date: Mon, 26 May 2025 21:06:24 +0300 Subject: [PATCH 1/2] completed code-challenge --- freebies.db | Bin 0 -> 16384 bytes lib/alembic.ini | 2 +- .../0418f0070819_create_freebies_table.py | 37 +++++++++++++++ lib/models.py | 44 ++++++++++++++++++ lib/seed.py | 27 +++++++++++ 5 files changed, 109 insertions(+), 1 deletion(-) create mode 100644 freebies.db create mode 100644 lib/migrations/versions/0418f0070819_create_freebies_table.py diff --git a/freebies.db b/freebies.db new file mode 100644 index 0000000000000000000000000000000000000000..d0beb94f3cf8c3a3be6d4c2dd94b55b75615de22 GIT binary patch literal 16384 zcmeI&F>ljA6bJA-JJ=*BJw&N8ps2@ylt|EpFMw-ZOGN4v+aPs7mgAgTD~VlPr&8I1 z#K+-lureYsu_IMX%-D&XG(og0mHsDP?)?06@8##oQk>V_D3d%)(y^cM=j1-2l)T`a z5TfO?lFxFe`R3|1EpJ@2YGmib`+AG_|*`%N9ncpADFqN_&$+L2;n6@xn!ChmwD|i{@ty(o2@Q&q*ePMH}=W^>!xBHam z;Y^Ob*dI&&*09Z&hFt{D{n130=|x~5&%NaVMI=bZr+$2~7Cp2(2ZnvbUx_2$iU#c> z)9hJ}Ya4lS9uB>-C2xLYv7GU}o-I22R`IpgJl^KE*b}y}OyTfZ&JD*c`|;-69A)L) zWx~qY%jBX!tsN+OV{3~}+cVyxaxv8v)_FhwBwg2BN2#@^_o&|3-lkJItFq`}u~Am) zEyCA4$MvFNGKmLKeC%CFKfU@W|L&%EH&@sX!hYo+7!ZH}1Rwwb2tWV=5P$##AOHaf z+)9BBr9zrYCyo;*2{Zls1}&~#8Jw6&da8e&zyDtn_M2Va${&cPApijgKmY;|fB*y_ z009U<00IzL6VMcuZ0;ugyHq6&V-y8)_TPN=g|MIOTfSgG00Izz00bZa0SG_<0uX=z z1R(I=3NTe8k0`CW&zzGe%^oTb6pcKlRca<-C?!9b95ZE;YUBy6R-G&ghBD=celWcA E2T!-zSO5S3 literal 0 HcmV?d00001 diff --git a/lib/alembic.ini b/lib/alembic.ini index 953863ddd..a256866c9 100644 --- a/lib/alembic.ini +++ b/lib/alembic.ini @@ -2,7 +2,7 @@ [alembic] # path to migration scripts -script_location = migrations +script_location = lib/migrations # template used to generate migration file names; The default value is %%(rev)s_%%(slug)s # Uncomment the line below if you want the files to be prepended with date and time diff --git a/lib/migrations/versions/0418f0070819_create_freebies_table.py b/lib/migrations/versions/0418f0070819_create_freebies_table.py new file mode 100644 index 000000000..b557c70e4 --- /dev/null +++ b/lib/migrations/versions/0418f0070819_create_freebies_table.py @@ -0,0 +1,37 @@ +"""Create freebies table + +Revision ID: 0418f0070819 +Revises: 5f72c58bf48c +Create Date: 2025-05-26 20:04:04.589254 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '0418f0070819' +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('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/models.py b/lib/models.py index 2681bee5a..b05823336 100644 --- a/lib/models.py +++ b/lib/models.py @@ -18,6 +18,19 @@ class Company(Base): def __repr__(self): return f'' + + @property + def devs(self): + return list({freebie.dev for freebie in self.freebies}) + + def give_freebie(self, dev, item_name, value): + freebie = Freebie(item_name=item_name, value=value, dev=dev, company=self) + return freebie + + @classmethod + def oldest_company(cls, session): + return session.query(cls).order_by(cls.founding_year).first() + class Dev(Base): __tablename__ = 'devs' @@ -27,3 +40,34 @@ class Dev(Base): def __repr__(self): return f'' + + @property + def companies(self): + return list({freebie.company for freebie in self.freebies}) + + def received_one(self, item_name): + return any(freebie.item_name == item_name for freebie in self.freebies) + + def give_away(self, other_dev, freebie): + if freebie in self.freebies: + freebie.dev = other_dev + + +class Freebie(Base): + __tablename__ = 'freebies' + + id = Column(Integer(), primary_key=True) + item_name = Column(String()) + value = Column(Integer()) + dev_id = Column(Integer(), ForeignKey('devs.id')) + company_id = Column(Integer(), ForeignKey('companies.id')) + + dev = relationship('Dev', backref=backref('freebies', cascade="all, delete-orphan")) + company = relationship('Company', backref=backref('freebies', cascade="all, delete-orphan")) + + 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..acd8c168e 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,30 @@ #!/usr/bin/env python3 # Script goes here! +from sqlalchemy import create_engine +from sqlalchemy.orm import Session +from models import Base, Company, Dev, Freebie + +# Open a session +with Session(engine) as session: + + # Create some companies + company1 = Company(name="TechCorp", founding_year=1999) + company2 = Company(name="InnoSoft", founding_year=2010) + session.add_all([company1, company2]) + session.commit() + + # Create some devs + dev1 = Dev(name="Alice") + dev2 = Dev(name="Bob") + session.add_all([dev1, dev2]) + session.commit() + + # Create some freebies associated with devs and companies + freebie1 = Freebie(item_name="Sticker Pack", value=5, dev=dev1, company=company1) + freebie2 = Freebie(item_name="Coffee Mug", value=15, dev=dev1, company=company2) + freebie3 = Freebie(item_name="T-Shirt", value=20, dev=dev2, company=company1) + session.add_all([freebie1, freebie2, freebie3]) + session.commit() + + print("data created successfully.") From 87c9dd3421d013d513219112057f2a924c8af46f Mon Sep 17 00:00:00 2001 From: Jeff Mbithi Date: Mon, 2 Jun 2025 12:52:09 +0300 Subject: [PATCH 2/2] modified seed.py --- lib/seed.py | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/lib/seed.py b/lib/seed.py index acd8c168e..abd804f2d 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -5,22 +5,26 @@ from sqlalchemy.orm import Session from models import Base, Company, Dev, Freebie -# Open a session +engine = create_engine("sqlite:///freebies.db") + +Base.metadata.create_all(engine) + + with Session(engine) as session: - # Create some companies + company1 = Company(name="TechCorp", founding_year=1999) company2 = Company(name="InnoSoft", founding_year=2010) session.add_all([company1, company2]) session.commit() - # Create some devs + dev1 = Dev(name="Alice") dev2 = Dev(name="Bob") session.add_all([dev1, dev2]) session.commit() - # Create some freebies associated with devs and companies + freebie1 = Freebie(item_name="Sticker Pack", value=5, dev=dev1, company=company1) freebie2 = Freebie(item_name="Coffee Mug", value=15, dev=dev1, company=company2) freebie3 = Freebie(item_name="T-Shirt", value=20, dev=dev2, company=company1)