From 87e2179a7f9201ae237546a76aab49e21aefbbfc Mon Sep 17 00:00:00 2001 From: Aspen Wilson Date: Sat, 10 Jun 2023 16:06:28 -0700 Subject: [PATCH] Completed lab --- lib/debug.py | 20 +++- lib/freebies.db | Bin 20480 -> 32768 bytes .../cdd7a444a408_added_company_dev_table.py | 34 +++++++ .../e9ab616974f8_added_freebie_table.py | 37 +++++++ .../versions/eac61359ad88_updates.py | 28 ++++++ lib/models.py | 76 +++++++++++++- lib/seed.py | 93 +++++++++++++++++- 7 files changed, 282 insertions(+), 6 deletions(-) create mode 100644 lib/migrations/versions/cdd7a444a408_added_company_dev_table.py create mode 100644 lib/migrations/versions/e9ab616974f8_added_freebie_table.py create mode 100644 lib/migrations/versions/eac61359ad88_updates.py diff --git a/lib/debug.py b/lib/debug.py index 4f922eb69..107f93f17 100644 --- a/lib/debug.py +++ b/lib/debug.py @@ -1,9 +1,25 @@ #!/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() + + first_freebie = session.query(Freebie).first() + Freebie.dev = session.query(Dev).filter(Dev.id == first_freebie.dev_id).all() + Freebie.company = session.query(Company).filter(Company.id == first_freebie.company_id).all() + + first_company = session.query(Company).first() + Company.freebies = Company.get_freebies(session) + Company.devs = [session.query(Dev).get(Freebie.dev_id) for Freebie in Company.freebies] + + first_dev = session.query(Dev).first() + Dev.freebies = Dev.get_freebies(session) + Dev.companies = [session.query(Company).get(Freebie.company_id) for Freebie in Dev.freebies] + + import ipdb; ipdb.set_trace() \ No newline at end of file diff --git a/lib/freebies.db b/lib/freebies.db index 12beb1c963e832db481e7a7493e3029e691ac4dc..c3832b4bf4a375faafe7ed807e983975ab28cf43 100644 GIT binary patch literal 32768 zcmeI432-D=dB=OE`}Hx?{d#7)dk(F%YDueWrIl7%uf4uk*Gj8vcO`k(>r1p|T2fo1 zZnwIg51U=soqi6KygBtYdbV1i>3V;}}>Y=?v-INaDIm?9W+gd-dUaUkS-{bu$G zPRf;3B}H0g@2|V3`@Qe|-~D|(Gkvd2fBga;u94`_wsy!pPj%(88FxFf=?pW}fqb z*%g!Or%u5&4MEE0^4enkCUQgl*eTQw9lK;6Ix;tQczl*5c}|Mm=G@q!vAMC?k+J!j z`Q+vtVdu2z4{wH|b0X|EFu_Oa@f`ms%}(PRJNWWV<_%m(&;e zADt&Fx$>V#dZC&ZiW2MIjxgzJ~S@|M)hb+XuAAbfi3I9R`LIpwvLIpwvLIpwv zLIpwvLIwW&3TT5I(-}QsyM?Mb;Vmz(TdwekKEN^E(FvYdZx<{gYZRF=XEItyS}c=M^l!Abc#*!!a$Ogc1d_T*~T$#(J|jyBZd)i9?G_o@{X+fPO0p;wt1*%m-CRX z@VwDN(m1i|lwB}55ZNsWA4!{}d}Bpt%UZI_tL8X-H^H@q_a&MGCA?MF9I9GHOL)-O zNfMX@Vaux)T=jjg>Ir{hG?B|=>kgD*sA!+I;Hwe7@V8ncDc!VFvd)V3Kxzl6x^c+B zoP?B##Sd!@i5hkY-2LX=~Fbw+ipo403V7_H8g}#x6ob5k8&NiGswIx`NN> z8mWN=XL%XEEdx4v8<5Wj(kUX-jI&aKY8kJTp@I5PvmZ|<$@N;Z08^{3S1go-hmr}B z@DQn6^GHxN|DdVFfJqzLMjk|gl9Yr$({a#@pjnX?Zu@1T$=6Z}(FvM!r2tKT-YZ!k ziA*F}fc9$6uRG;c;mKs21v8&a#)52p$8s%m!YUSpztAO;!?5Kq1&_MW z$Dlkpkz@9q(@rLA-z7D-B|NDMMyLo7Zzr!@a+S0baY<$u+EW0MlII?z2;Y`+)wIkP+I6Twhy&MTlaIxC^34zQVJ@& z3N8C-14_9;W4uR&*8(2`W^LY_2cTp>L03aQ14bNs;wSX52}0BX7B?1 z41XQG0FUDb@$cc^fN$`x;p^d%@Gn##R3KC!R3KC!R3KC!R3KC!R3KC!RN()k0*M^U zbO!rc6ZXA6eBmBvS*8sPCja1jNmLh3f=Acd*G zA!QDeXIQwSw%Z5K26(bkQ7GJe-Yb{QnS368-p|ReB_kkb-3v2sow8PJvj2Z=^qY+O zUG+2SN7Z*j{Qov}S)Ee%sZFYYe}JFCkKy|v`hP24!c%xZZp2aLJIWW8CzN+7zo~30 z*DE7RpQ6h@lb@GAEq_3MyZma|m#>o#%H47@{?quE;!nii6Mtj88n@yj@$R@D`+4lE zvA>DEKlVGZdtzSfcAdoO#Mwb)5^ zfQ9A@!i0an8Vcy!GS9R{B9ZB;>zd#a_0~$M5ve`Cbvc>ppQUZ?*6P#x|lB1y0DZ0*pF^Qm3#tv(3>b>Tcbcioda1 zjca?e+bqxYKw98|bxOn&OP$$?7d9X#MFsX{qPHp$Ua^);FNkiFjY;j`NKgwKm~{M!7F{JJ0Na)X#ds z4>=_mdfO6vGPluZ#%=Jq7a%481H0#TWO_5V(hr6}iAIu`T-b|HzB1MQOP(0h5wTWkVXHUavp6Q4DN2=h*28ZvcS6PAV%T-h9(Kl(8 z4Et56bnw30B|Wt}cZynE4+#**w*?;HMtQeUsfz-aU|1)C3s&2mE7K>AJNdE){$X=y zrQ*PV-IUtBqr@`>`bgf zmXZ{KX%T`YP^wO?NHUZn5SW1pMAw2t)6wb~~!6u$s*3dbt- z2_3pajV7}dM0dckzt$#nG^|qT>od&+1g4u zT@dnc1bJ73O_Q1N`=E~K62U3vz0)nZwsfJ^39Y=hWJ1d#@fb1Imd>B;oUo*z-8^Ts zWtT4K22-xHvRZD`+j17I!(jS73Nf&A|=BOESUV+5Nf=0R{+L${=bEHa`qZLryob>zTY-8pq zEj&cbRy-JY7p!X0^9Q)b%#m702*QZlWqb-Krq%fi8=jHO-T|&TB!K0?HkFQJ_a{Sk;o7% zDaT=K03k|zHa$vnJTue`S4yjUvf0KFp4ks(pSQTJ1ys8;sbMq9hG z5~YPA`31}E)6;Q9jfSgg11yb;g2eNi770Jf znvuDZK2%=_)4`854C4x_1QnD9SQ`vOznt1cV#;K)g#kIM8`;Zf)t(8P!C(gsu|?PQ zOX>Y{Wc)s1Tkz9ZlBnwk=v6wljKe6s)tS?Cm(bQmS|$72Ysn|Z7#OW@Y&;m3U z*m04_f3aw=*yyZTTMIjrK~)hHqk~>P3eypkAsDjuW|ee%Jryz#m_vE5RJQt3N_H2` zci#3_9M2>}30aYJiHg=%8;PL*&`#AARkT)mu{NlVTh)G1PPfpsr(g>Rq1{?oT9>mX zO&bPTzgjfMN*j*rZCR=yYt7KYpl^=&ma{@bvsg~=q{)yC9T_Hqp2MZ(h9=rUj#_0O zHeWQ5zG_>AY$~2@JS!XQZ2k3883yVVAsS2Xps9@$lNP*9w*;ec6N=>;AT^PU{-fkH2y;4cVQZ`*z68h4N z=ayH<@}`=KNg0E-k-6HePdkW`k#wDQw4s8v4mQGyr=;_uq0t(gb@H%7rM)3=^1QCnT48^oiuLWQLA!<=~(w!56fX|NAyf$lnI(f2{7ZLD!R>;lN< zpl16pv?`qC^ccMgrn~iWX1H{H15kTU1vV7<)ozx{!TO)9cx%%dOnNZ?!>cNi$m+E{ zzlpO~^~dV>)NiW)sQ$hBIrWq9F2JMe2i5nf_p5)P{;v8a_4VqnsoUz7T2hPfZop0I z33xx?usW<>u3n_>Q9Iy0fvlQTV=4=83;Y;=7e9}`f}h5p#(#~Uz#qo%#}D9l;&`3E z1Kca1I|(#&2SE(oPQaqu0R1ewl|VyVfWA1Y63FN@U{3;V0(vv(6oG;&1UatEMx-88 zf|DKv`GDOrx`jYP8w4rj5oD1I=$6nr0f&l!E(NUtIz@CdL6UPItxmKGCmkAEArR0q zpj|>X0gDQNT{6l8+Hz=#Aciag1HFtuM~eg)-2`YAxf>zLR&)b7iKFWYICLGLML;JB zFuIlip%VmAbR1wt(KUePC|V$hp?LxY%>j0b=op|0p`(DtC^|xrMY9APnjy%bX@Ufr z0_>2vNwA>-9fp$z4ov`Z3K}O6(IJ8)8Uti`G)j==M&SMo8itc}6b%vR=pccDt_HxK z{3-$sT}fb|D+qLSIY8IZWdtI+lpu!=0JJo^gg`|X6BuYeK^9#ENO5Q%AgQB40u2oi z#L!*>g!&0s)CWl9&>jLE^#ar+>H%OL?IuW~ZUPo{0Tcms5@b;aK?=1Kh-eo<6tw|l z5w#NNsD(g4CILpx1ZlJr5Ko~dKrD(H2@u*r5JwFJNt6RfBFYkAlp%G=HS?yH&)l1Y2{ssOXyese%RfS#u$MLiH3-~Gc z&435+!}vb@HvDG%di*N**1#tA@CrVHPvCL9h%dqYu;pl}D8al~=<)|6R&E;7x;VrK(u4&%Z@EsT@-dE0-!mN-OO1843eNO-khyWv;?=@S;jjIXLZ6N&$DvKBaaGWom;m>jmtVTuN>|V3$%1 z*eR}2CT|Xs?R0|E4sDfESP9rJEmN{~z+G}7U|TLv8C#+>EK2=llz1^M`BXrjPX None: + # ### commands auto generated by Alembic - please adjust! ### + op.create_table('company_dev', + sa.Column('company_id', sa.Integer(), nullable=False), + sa.Column('dev_id', sa.Integer(), nullable=False), + sa.ForeignKeyConstraint(['company_id'], ['companies.id'], name=op.f('fk_company_dev_company_id_companies')), + sa.ForeignKeyConstraint(['dev_id'], ['devs.id'], name=op.f('fk_company_dev_dev_id_devs')), + sa.PrimaryKeyConstraint('company_id', 'dev_id') + ) + # ### end Alembic commands ### + + +def downgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + op.drop_table('company_dev') + # ### end Alembic commands ### diff --git a/lib/migrations/versions/e9ab616974f8_added_freebie_table.py b/lib/migrations/versions/e9ab616974f8_added_freebie_table.py new file mode 100644 index 000000000..e73866032 --- /dev/null +++ b/lib/migrations/versions/e9ab616974f8_added_freebie_table.py @@ -0,0 +1,37 @@ +"""Added freebie table + +Revision ID: e9ab616974f8 +Revises: 5f72c58bf48c +Create Date: 2023-06-10 12:56:14.120957 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'e9ab616974f8' +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/migrations/versions/eac61359ad88_updates.py b/lib/migrations/versions/eac61359ad88_updates.py new file mode 100644 index 000000000..6d2c07b15 --- /dev/null +++ b/lib/migrations/versions/eac61359ad88_updates.py @@ -0,0 +1,28 @@ +"""updates + +Revision ID: eac61359ad88 +Revises: cdd7a444a408 +Create Date: 2023-06-10 15:35:46.809855 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = 'eac61359ad88' +down_revision = 'cdd7a444a408' +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..dde191655 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,4 +1,4 @@ -from sqlalchemy import ForeignKey, Column, Integer, String, MetaData +from sqlalchemy import ForeignKey, Column, Integer, String, MetaData, Table from sqlalchemy.orm import relationship, backref from sqlalchemy.ext.declarative import declarative_base @@ -9,6 +9,14 @@ Base = declarative_base(metadata=metadata) +company_dev = Table( + 'company_dev', + Base.metadata, + Column('company_id', ForeignKey('companies.id'), primary_key=True), + Column('dev_id', ForeignKey('devs.id'), primary_key=True), + extend_existing=True, +) + class Company(Base): __tablename__ = 'companies' @@ -16,14 +24,76 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + devs = relationship('Dev', secondary=company_dev, back_populates='companies') + freebies = relationship('Freebie', backref=backref('company'), cascade='all, delete-orphan') + def __repr__(self): - return f'' + return f'' + + @classmethod + def get_freebies(cls, session): + first_company = session.query(cls).first() + return session.query(Freebie).filter(Freebie.company_id == first_company.id).all() + + @property + def dev_names(self): + return [dev.name for dev in self.devs] + + def give_freebie(self, dev, item_name, value): + new_freebie = Freebie(item_name=item_name, value=value, company=self, dev=dev) + return new_freebie + + 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()) + + companies = relationship('Company', secondary=company_dev, back_populates='devs') + freebies = relationship('Freebie', backref=backref('dev'), cascade='all, delete-orphan') + + def __repr__(self): + return f'' + + @classmethod + def get_freebies(cls, session): + first_dev = session.query(cls).first() + return session.query(Freebie).filter(Freebie.dev_id == first_dev.id).all() + + @property + def company_names(self): + return [company.name for company in self.companies] + + 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.dev == self: + freebie.dev = dev + +class Freebie(Base): + __tablename__ = 'freebies' + + id = Column(Integer(), primary_key =True) + item_name= Column(String()) + value = Column(Integer()) + + dev_id = Column(ForeignKey('devs.id')) + company_id = Column(ForeignKey('companies.id')) + def __repr__(self): - return f'' + return f'Freebie(id:{self.id}, ' + \ + f'Name:{self.item_name}, ' + \ + f'company_id:{self.company_id}, ' + \ + f'dev_id:{self.dev_id})' + + def print_details(self, session): + dev_name = session.query(Dev.name).filter(Dev.id == self.dev_id).scalar() + company_name = session.query(Company.name).filter(Company.id == self.company_id).scalar() + return f'{dev_name} owns a {self.item_name} from {company_name}' + + diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..a3ea96cef 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,94 @@ #!/usr/bin/env python3 +from faker import Faker +import random +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker -# Script goes here! +from models import Company, Dev, Freebie + +fake = Faker() + +if __name__ == '__main__': + + engine = create_engine('sqlite:///freebies.db') + Session = sessionmaker(bind=engine) + session = Session() + + session.query(Company).delete() + session.query(Dev).delete() + session.query(Freebie).delete() + + fake = Faker() + + companies = [] + for i in range(50): + company = Company( + name = fake.name(), + founding_year = random.randint(1965,2023) + ) + + # add and commit individually to get IDs back + session.add(company) + session.commit() + + companies.append(company) + + devs = [] + for i in range(25): + dev = Dev( + name=fake.name(), + ) + + session.add(dev) + session.commit() + + devs.append(dev) + + freebies = [] + for company in companies: + for i in range(random.randint(1,5)): + dev = random.choice(devs) + if company not in dev.companies: + dev.companies.append(company) + session.add(dev) + session.commit() + + freebie = Freebie( + item_name=fake.name(), + value=random.randint(0, 50), + company_id=company.id, + dev_id=dev.id, + ) + + freebies.append(freebie) + + session.bulk_save_objects(freebies) + session.commit() + session.close() + +# def delete_records(): +# session.query(Company).delete() +# session.query(Dev).delete() +# session.query(Freebie).delete() +# session.commit() + +# def create_records(): +# companies = [Company() for i in range(100)] +# devs = [Dev() for i in range(1000)] +# freebies = [Freebie() for i in range(500)] +# session.add_all(companies + devs + freebies) +# session.commit() +# return companies, devs, freebies + +# def relate_records(companies, devs, freebies): +# for freebie in freebies: +# freebie.company = rc(companies) +# freebie.dev = rc(devs) + +# session.add_all(freebies) +# session.commit() + +# if __name__ == '__main__': +# delete_records() +# companies, devs, freebies = create_records() +# relate_records(companies, devs, freebies) \ No newline at end of file