From 6d0f1dd9c58e26e1e42ae9299535d6510d0cb140 Mon Sep 17 00:00:00 2001 From: Immanuel Date: Thu, 5 Jun 2025 11:51:17 +0300 Subject: [PATCH 1/2] Setting up alembic --- lib/freebies.db | Bin 20480 -> 24576 bytes .../db3651352972_create_freebies_table.py | 32 ++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 lib/migrations/versions/db3651352972_create_freebies_table.py diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c963e832db481e7a7493e3029e691ac4dc..a5642547c4ad458efbc7b0f66b21f4e0f82eef2f 100644 GIT binary patch delta 539 zcmZozz}Rqrae}lUI|Bm)8xX?)%S0Vxadrm1yj{HfKNwhfVi@>&`FHZw^GWfdd){X$&bT~TFHQp@5qQ?N=U=jRqA z=2ha74hZt}bqtDB@OF(<(5TN$(F9rK?C%#G666T9Ng+8SH90#TY;$~GeqMZDYIAxvQCq8N-&05=?DHbODT0xr#D7Itw_QN~71a6F}K*5o@a e$di&}Y-Va`Y-(g_ZnR0^3qOj$A_Ij*4gvspt)21! delta 94 zcmZoTz}T>Wae}lUD+2=q2*UvLL>*&MRtCLzSzi7h3@m(74E((OJNfGQq&5o*EaTlQ e#dk}P$285{DB08^Db2(pd6U8yeiVU41_}T{Q53rX diff --git a/lib/migrations/versions/db3651352972_create_freebies_table.py b/lib/migrations/versions/db3651352972_create_freebies_table.py new file mode 100644 index 000000000..aba8a81b8 --- /dev/null +++ b/lib/migrations/versions/db3651352972_create_freebies_table.py @@ -0,0 +1,32 @@ +"""create freebies table + +Revision ID: db3651352972 +Revises: 5f72c58bf48c +Create Date: 2025-06-05 11:47:22.155610 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'db3651352972' +down_revision = '5f72c58bf48c' +branch_labels = None +depends_on = None + + +def upgrade(): + op.create_table( + "freebies", + sa.Column("id", sa.Integer, primary_key=True), + sa.Column("item_name", sa.String, nullable=False), + sa.Column("value", sa.Integer, nullable=False, default=0), + sa.Column("dev_id", sa.Integer, sa.ForeignKey("devs.id"), nullable=False), + sa.Column("company_id", sa.Integer, sa.ForeignKey("companies.id"), nullable=False), + sa.CheckConstraint("value >= 0", name="check_value_non_negative") + ) + + +def downgrade(): + op.drop_table("freebies") \ No newline at end of file From ce6008fca7aacac3871c9fe8f58c2e3da8bb9dd7 Mon Sep 17 00:00:00 2001 From: Immanuel Date: Thu, 5 Jun 2025 12:15:21 +0300 Subject: [PATCH 2/2] =?UTF-8?q?=E2=9C=85=20Final=20version:=20Freebie=20Tr?= =?UTF-8?q?acker=20complete?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- freebies.db | Bin 0 -> 16384 bytes lib/models.py | 55 ++++++++++++++++++++++++++++++++++++++++++-------- lib/seed.py | 31 ++++++++++++++++++++++++++-- 3 files changed, 76 insertions(+), 10 deletions(-) create mode 100644 freebies.db diff --git a/freebies.db b/freebies.db new file mode 100644 index 0000000000000000000000000000000000000000..03c0ab5411f34b1af5b7ac40a933efcdd38f22da GIT binary patch literal 16384 zcmeI&F>l&H6bJA-LxW6{UWY^|s-nCl5=d>Aet|gXLQttmjngWV<-n0zfQ^iUlo3@O z`jt9&?g!|QF5O%86Z8x+geatIqx?@g?)-ed_xRmp$*s4IAW_tf;(?#gEB2Ie&i08I zV@2Kbx@XPQlk3+!yK%=@WG}-n8+t)*<1-Vn*w6zS1Rwwb2tWV=5P$##AOL}fE%1@& z3Zj;z=0^s(|RULi*wN=MpN*`n#1e{8oX%$rR$+|s^_1xtG` z7N-e{m9|kRZEf*MWqJf@=CtRQ=x6n;WWO$+0^CF?Rwj>mp|rcpCu*8yUc-E1EajVr z?>Ot5NxRWS*a^aO?^5}3cFMO`lfIi9;wKY-^bZ;YAOHafKmY;|fB*y_009U<00Q?` zVBN^GZKF9@BKu@bPy#;UkPK=NTb|rB|*EV|n(m9y JhagV2{{j~N=q~^O literal 0 HcmV?d00001 diff --git a/lib/models.py b/lib/models.py index 2681bee5a..8a8e86ff4 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,29 +1,68 @@ from sqlalchemy import ForeignKey, Column, Integer, String, MetaData -from sqlalchemy.orm import relationship, backref +from sqlalchemy.orm import relationship from sqlalchemy.ext.declarative import declarative_base +# Naming convention for Alembic 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()) + id = Column(Integer, primary_key=True) + name = Column(String) + founding_year = Column(Integer) + + freebies = relationship("Freebie", back_populates="company", cascade="all, delete-orphan") + devs = relationship( + "Dev", + secondary="freebies", + back_populates="companies", + viewonly=True + ) + + def give_freebie(self, dev, item_name, value): + return Freebie(item_name=item_name, value=value, dev=dev, company=self) def __repr__(self): - return f'' + return f"" class Dev(Base): __tablename__ = 'devs' - id = Column(Integer(), primary_key=True) - name= Column(String()) + id = Column(Integer, primary_key=True) + name = Column(String) + + freebies = relationship("Freebie", back_populates="dev", cascade="all, delete-orphan") + companies = relationship( + "Company", + secondary="freebies", + back_populates="devs", + viewonly=True + ) def __repr__(self): return f'' + + +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"), nullable=False) + company_id = Column(Integer, ForeignKey("companies.id"), nullable=False) + + dev = relationship("Dev", back_populates="freebies") + company = relationship("Company", back_populates="freebies") + + def print_details(self): + return f"{self.dev.name} owns a {self.item_name} from {self.company.name}" + + def __repr__(self): + return f"" \ No newline at end of file diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..d1f494b0d 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,30 @@ -#!/usr/bin/env python3 +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker +from models import Base, Dev, Company, Freebie -# Script goes here! +engine = create_engine("sqlite:///freebies.db") +Session = sessionmaker(bind=engine) +session = Session() + +# Drop and re-create all tables +Base.metadata.drop_all(engine) +Base.metadata.create_all(engine) + +# Create Devs +ada = Dev(name="Ada Lovelace") +grace = Dev(name="Grace Hopper") + +# Create Companies +google = Company(name="Google", founding_year=1998) +openai = Company(name="OpenAI", founding_year=2015) + +# Create Freebies using give_freebie method +f1 = google.give_freebie(ada, "T-shirt", 25) +f2 = google.give_freebie(grace, "Sticker Pack", 5) +f3 = openai.give_freebie(ada, "Water Bottle", 15) + +# Add all to session +session.add_all([ada, grace, google, openai, f1, f2, f3]) +session.commit() + +print("✅ Seeded!") \ No newline at end of file