From 69c05f7b8ed1f474c4e7c4d1ac6e84c3387d007a Mon Sep 17 00:00:00 2001 From: Anthony Date: Tue, 27 May 2025 00:07:08 +0300 Subject: [PATCH] created the seed and the model file to run --- alembic.ini | 105 ++++++++++++++++++ freebies.db | Bin 0 -> 24576 bytes lib/models.py | 26 ++++- lib/seed.py | 15 ++- migrations/README | 1 + migrations/env.py | 79 +++++++++++++ migrations/script.py.mako | 24 ++++ .../35e0410db447_create_freebies_table.py | 50 +++++++++ 8 files changed, 297 insertions(+), 3 deletions(-) create mode 100644 alembic.ini create mode 100644 freebies.db create mode 100644 migrations/README create mode 100644 migrations/env.py create mode 100644 migrations/script.py.mako create mode 100644 migrations/versions/35e0410db447_create_freebies_table.py diff --git a/alembic.ini b/alembic.ini new file mode 100644 index 000000000..953863ddd --- /dev/null +++ b/alembic.ini @@ -0,0 +1,105 @@ +# A generic, single database configuration. + +[alembic] +# path to migration scripts +script_location = 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 +# see https://alembic.sqlalchemy.org/en/latest/tutorial.html#editing-the-ini-file +# for all available tokens +# file_template = %%(year)d_%%(month).2d_%%(day).2d_%%(hour).2d%%(minute).2d-%%(rev)s_%%(slug)s + +# sys.path path, will be prepended to sys.path if present. +# defaults to the current working directory. +prepend_sys_path = . + +# timezone to use when rendering the date within the migration file +# as well as the filename. +# If specified, requires the python-dateutil library that can be +# installed by adding `alembic[tz]` to the pip requirements +# string value is passed to dateutil.tz.gettz() +# leave blank for localtime +# timezone = + +# max length of characters to apply to the +# "slug" field +# truncate_slug_length = 40 + +# set to 'true' to run the environment during +# the 'revision' command, regardless of autogenerate +# revision_environment = false + +# set to 'true' to allow .pyc and .pyo files without +# a source .py file to be detected as revisions in the +# versions/ directory +# sourceless = false + +# version location specification; This defaults +# to migrations/versions. When using multiple version +# directories, initial revisions must be specified with --version-path. +# The path separator used here should be the separator specified by "version_path_separator" below. +# version_locations = %(here)s/bar:%(here)s/bat:migrations/versions + +# version path separator; As mentioned above, this is the character used to split +# version_locations. The default within new alembic.ini files is "os", which uses os.pathsep. +# If this key is omitted entirely, it falls back to the legacy behavior of splitting on spaces and/or commas. +# Valid values for version_path_separator are: +# +# version_path_separator = : +# version_path_separator = ; +# version_path_separator = space +version_path_separator = os # Use os.pathsep. Default configuration used for new projects. + +# the output encoding used when revision files +# are written from script.py.mako +# output_encoding = utf-8 + +sqlalchemy.url = sqlite:///freebies.db + + +[post_write_hooks] +# post_write_hooks defines scripts or Python functions that are run +# on newly generated revision scripts. See the documentation for further +# detail and examples + +# format using "black" - use the console_scripts runner, against the "black" entrypoint +# hooks = black +# black.type = console_scripts +# black.entrypoint = black +# black.options = -l 79 REVISION_SCRIPT_FILENAME + +# Logging configuration +[loggers] +keys = root,sqlalchemy,alembic + +[handlers] +keys = console + +[formatters] +keys = generic + +[logger_root] +level = WARN +handlers = console +qualname = + +[logger_sqlalchemy] +level = WARN +handlers = +qualname = sqlalchemy.engine + +[logger_alembic] +level = INFO +handlers = +qualname = alembic + +[handler_console] +class = StreamHandler +args = (sys.stderr,) +level = NOTSET +formatter = generic + +[formatter_generic] +format = %(levelname)-5.5s [%(name)s] %(message)s +datefmt = %H:%M:%S diff --git a/freebies.db b/freebies.db new file mode 100644 index 0000000000000000000000000000000000000000..984c6e7b52bf69e5e99172139bd6650ad7b564cf GIT binary patch literal 24576 zcmeI&O^*^W7zgl{mqk#(%Z9{+Y%iNI!I)jacrtM$-Ia)gJD|xPOfxXWOqLl|-r}AN zoA{yhQ+f1g3k)z5UE`Jf8=5K4bo%mZ=g>gsqUB8`8;r)jGi5dMkWflqGDZkVt9+nx zm{O{sbC_sYxZ|28PeeIi{6*3aevo3m_`UG8@JJPrAOHafKmY;|fB*y_009X6hrsQ} zbf#1;({K5y(;LdcSjwI!C*k#=VRN&~S=W5k;w+4^N-pcUtZ8-mIk%bB?lS9rtM!%!3d1p7@n)W4o!!KFIa}8aq z(Y88W+f<#i!IcPyB(_bii)t3^tZnn=xuu`4Y%3Vd=4agIR)crgDy%F2ql4Axgt|oA zUBx49F6-##az;OuDIFftg|Xz-H*`)%SXb5mN*dRUqvVXm{bZ(ebVL_&*~?~1n?fqm z-zI#=I>tL4jAnuB1)s!?bjG_&`G?UMG*hZp>1}p78fPf|p4S(1Ii7fOI2!5jmW0k*%Gl9#PwC5MTWT3o?4z4iG$Kbl@c#-<(J9lq1wK}nN3H_ z?;_sVX)KUbFWNo*vgK8##h*ldkRSj72tWV=5P$##AOHafKmY;|*b{*QO&r&r$&>o& ziQB8!pXb!PaQ@$u#lz{} zfB*y_009U<00Izz00bbg#{xM2@A2YdY7l?`1Rwwb2tWV=5P$##AOL~20M7r|3J`z* W1Rwwb2tWV=5P$##AOL~=7x)deNfbZ; literal 0 HcmV?d00001 diff --git a/lib/models.py b/lib/models.py index 2681bee5a..e08caf15a 100644 --- a/lib/models.py +++ b/lib/models.py @@ -1,6 +1,6 @@ from sqlalchemy import ForeignKey, Column, Integer, String, MetaData -from sqlalchemy.orm import relationship, backref -from sqlalchemy.ext.declarative import declarative_base +from sqlalchemy.orm import relationship, backref, declarative_base + convention = { "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s", @@ -16,7 +16,11 @@ class Company(Base): name = Column(String()) founding_year = Column(Integer()) + freebies = relationship('Freebie', back_populates = 'company') + def __repr__(self): + from lib.models import Base + target_metadata = Base.metadata return f'' class Dev(Base): @@ -25,5 +29,23 @@ class Dev(Base): id = Column(Integer(), primary_key=True) name= Column(String()) + freebies = relationship('Freebie', back_populates = 'dev') + def __repr__(self): return f'' + + +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'' \ No newline at end of file diff --git a/lib/seed.py b/lib/seed.py index b16becbbb..3bdcd5be3 100644 --- a/lib/seed.py +++ b/lib/seed.py @@ -1,3 +1,16 @@ #!/usr/bin/env python3 +from models import Company, Dev, Freebie +from sqlalchemy import create_engine +from sqlalchemy.orm import sessionmaker -# Script goes here! +engine = create_engine('sqlite:///freebies.db') + +freebie1 = Freebie(item_name = 'T-shirt', value =20, company_id= 1, dev_id=3) +freebie2 = Freebie(item_name = 'Mug', value =4, company_id= 3, dev_id=2) +freebie3 = Freebie(item_name = 'Umbrella', value =30, company_id= 8, dev_id=1) +freebie4 = Freebie(item_name = 'Hoodie', value =50, company_id= 2, dev_id=7) + +Session = sessionmaker(bind=engine) +session = Session() +session.add_all([freebie1, freebie2, freebie3, freebie4]) +session.commit() \ No newline at end of file diff --git a/migrations/README b/migrations/README new file mode 100644 index 000000000..98e4f9c44 --- /dev/null +++ b/migrations/README @@ -0,0 +1 @@ +Generic single-database configuration. \ No newline at end of file diff --git a/migrations/env.py b/migrations/env.py new file mode 100644 index 000000000..b03590b58 --- /dev/null +++ b/migrations/env.py @@ -0,0 +1,79 @@ +from logging.config import fileConfig + +from sqlalchemy import engine_from_config +from sqlalchemy import pool +from lib.models import Base + +from alembic import context + +# this is the Alembic Config object, which provides +# access to the values within the .ini file in use. +config = context.config + +# Interpret the config file for Python logging. +# This line sets up loggers basically. +if config.config_file_name is not None: + fileConfig(config.config_file_name) + +# add your model's MetaData object here +# for 'autogenerate' support +# from myapp import mymodel +# target_metadata = mymodel.Base.metadata +target_metadata = Base.metadata + +# other values from the config, defined by the needs of env.py, +# can be acquired: +# my_important_option = config.get_main_option("my_important_option") +# ... etc. + + +def run_migrations_offline() -> None: + """Run migrations in 'offline' mode. + + This configures the context with just a URL + and not an Engine, though an Engine is acceptable + here as well. By skipping the Engine creation + we don't even need a DBAPI to be available. + + Calls to context.execute() here emit the given string to the + script output. + + """ + url = config.get_main_option("sqlalchemy.url") + context.configure( + url=url, + target_metadata=target_metadata, + literal_binds=True, + dialect_opts={"paramstyle": "named"}, + ) + + with context.begin_transaction(): + context.run_migrations() + + +def run_migrations_online() -> None: + """Run migrations in 'online' mode. + + In this scenario we need to create an Engine + and associate a connection with the context. + + """ + connectable = engine_from_config( + config.get_section(config.config_ini_section), + prefix="sqlalchemy.", + poolclass=pool.NullPool, + ) + + with connectable.connect() as connection: + context.configure( + connection=connection, target_metadata=target_metadata + ) + + with context.begin_transaction(): + context.run_migrations() + + +if context.is_offline_mode(): + run_migrations_offline() +else: + run_migrations_online() diff --git a/migrations/script.py.mako b/migrations/script.py.mako new file mode 100644 index 000000000..55df2863d --- /dev/null +++ b/migrations/script.py.mako @@ -0,0 +1,24 @@ +"""${message} + +Revision ID: ${up_revision} +Revises: ${down_revision | comma,n} +Create Date: ${create_date} + +""" +from alembic import op +import sqlalchemy as sa +${imports if imports else ""} + +# revision identifiers, used by Alembic. +revision = ${repr(up_revision)} +down_revision = ${repr(down_revision)} +branch_labels = ${repr(branch_labels)} +depends_on = ${repr(depends_on)} + + +def upgrade() -> None: + ${upgrades if upgrades else "pass"} + + +def downgrade() -> None: + ${downgrades if downgrades else "pass"} diff --git a/migrations/versions/35e0410db447_create_freebies_table.py b/migrations/versions/35e0410db447_create_freebies_table.py new file mode 100644 index 000000000..e2628e60b --- /dev/null +++ b/migrations/versions/35e0410db447_create_freebies_table.py @@ -0,0 +1,50 @@ +"""Create freebies table + +Revision ID: 35e0410db447 +Revises: +Create Date: 2025-05-26 01:17:42.755205 + +""" +from alembic import op +import sqlalchemy as sa + + +# revision identifiers, used by Alembic. +revision = '35e0410db447' +down_revision = None +branch_labels = None +depends_on = None + + +def upgrade() -> None: + # ### commands auto generated by Alembic - please adjust! ### + op.create_table('companies', + sa.Column('id', sa.Integer(), nullable=False), + sa.Column('name', sa.String(), nullable=True), + sa.Column('founding_year', sa.Integer(), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + op.create_table('devs', + sa.Column('id', sa.Integer(), nullable=False), + sa.Column('name', sa.String(), nullable=True), + sa.PrimaryKeyConstraint('id') + ) + 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') + op.drop_table('devs') + op.drop_table('companies') + # ### end Alembic commands ###