start python backend

This commit is contained in:
weeman 2021-06-06 22:25:10 +02:00
parent fe7019cd7c
commit 077c16fc2b
Signed by untrusted user: weeman
GPG Key ID: 34F0524D4DA694A1
15 changed files with 612 additions and 1 deletions

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/.env

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[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"
[packages]
flask = "*"
python-dotenv = "*"
flask-migrate = "*"
flask-sqlalchemy = "*"
sqlalchemy = "*"
[dev-packages]
[requires]
python_version = "3.8"

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# ki-backend
# Kompetenzinventar Backend
## Entwicklung
### Abhängigkeiten
- Python 3.8
- [Pipenv](https://github.com/pypa/pipenv)
### Entwicklungsumgebung aufbauen und starten
```
cp env.dev .env
pipenv install
pipenv shell
flask db upgrade
flask run
```
http://localhost:5000/

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import os
from datetime import datetime
from dotenv import load_dotenv, find_dotenv
from flask import Flask
from flask import request
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate
load_dotenv(find_dotenv())
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = os.getenv("SQLALCHEMY_DATABASE_URI")
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
migrate = Migrate(app, db)
from ki import module

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*
!/.gitignore

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SQLALCHEMY_DATABASE_URI = 'sqlite:///data/ki.sqlite'

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from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, Table
from sqlalchemy.orm import relationship
from app import db
user_skill_table = Table("user_skill", db.Model.metadata,
Column("user_id", Integer, ForeignKey("user.id")),
Column("skill_id", Integer, ForeignKey("skill.id")))
class User(db.Model):
__tablename__ = "user"
id = Column(Integer, primary_key=True)
nickname = Column(String(25), unique=True, nullable=False)
pronouns = Column(String(25), default="")
volunteerwork = Column(String(4000), default="")
freetext = Column(String(4000), default="")
relationship("Address", uselist=False, back_populates="user")
skills = relationship("Skill",
secondary=user_skill_table,
back_populates="users")
class Address(db.Model):
__tablename__ = "address"
id = Column(Integer, primary_key=True)
street = Column(String(25), default="")
house_number = Column(String(10), default="")
additional = Column(String(25), default="")
postcode = Column(String(10), default="")
city = Column(String(25), default="")
country = Column(String(25), default="")
user_id = Column(Integer, ForeignKey("user.id"))
user = relationship("User", back_populates="address")
class Skill(db.Model):
__tablename__ = "skill"
id = Column(Integer, primary_key=True)
name = Column(String(25), unique=True, nullable=False)
users = relationship("User",
secondary=user_skill_table,
back_populates="skills")
class Language(db.Model):
__tablename__ = "language"
id = Column(Integer, primary_key=True)
name = Column(String(25), nullable=False)

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ki/module.py Normal file
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from ki import models, routes

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ki/routes.py Normal file
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from app import app
@app.route("/")
def hello_world():
return "KI"

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migrations/README Normal file
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Generic single-database configuration.

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migrations/alembic.ini Normal file
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# A generic, single database configuration.
[alembic]
# template used to generate migration files
# file_template = %%(rev)s_%%(slug)s
# set to 'true' to run the environment during
# the 'revision' command, regardless of autogenerate
# revision_environment = false
# Logging configuration
[loggers]
keys = root,sqlalchemy,alembic,flask_migrate
[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
[logger_flask_migrate]
level = INFO
handlers =
qualname = flask_migrate
[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

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migrations/env.py Normal file
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from __future__ import with_statement
import logging
from logging.config import fileConfig
from flask import current_app
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.
fileConfig(config.config_file_name)
logger = logging.getLogger('alembic.env')
# add your model's MetaData object here
# for 'autogenerate' support
# from myapp import mymodel
# target_metadata = mymodel.Base.metadata
config.set_main_option(
'sqlalchemy.url',
str(current_app.extensions['migrate'].db.get_engine().url).replace(
'%', '%%'))
target_metadata = current_app.extensions['migrate'].db.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():
"""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
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
# this callback is used to prevent an auto-migration from being generated
# when there are no changes to the schema
# reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
def process_revision_directives(context, revision, directives):
if getattr(config.cmd_opts, 'autogenerate', False):
script = directives[0]
if script.upgrade_ops.is_empty():
directives[:] = []
logger.info('No changes in schema detected.')
connectable = current_app.extensions['migrate'].db.get_engine()
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata,
process_revision_directives=process_revision_directives,
**current_app.extensions['migrate'].configure_args
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()

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migrations/script.py.mako Normal file
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"""${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():
${upgrades if upgrades else "pass"}
def downgrade():
${downgrades if downgrades else "pass"}

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"""Initial migration
Revision ID: 409bf7623e6c
Revises:
Create Date: 2021-06-05 21:59:31.863399
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers, used by Alembic.
revision = '409bf7623e6c'
down_revision = None
branch_labels = None
depends_on = None
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('language',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('name', sa.String(length=25), nullable=False),
sa.PrimaryKeyConstraint('id')
)
op.create_table('skill',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('name', sa.String(length=25), nullable=False),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('name')
)
op.create_table('user',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('nickname', sa.String(length=25), nullable=False),
sa.Column('pronouns', sa.String(length=25), nullable=True),
sa.Column('volunteerwork', sa.String(length=4000), nullable=True),
sa.Column('freetext', sa.String(length=4000), nullable=True),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('nickname')
)
op.create_table('address',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('street', sa.String(length=25), nullable=True),
sa.Column('house_number', sa.String(length=10), nullable=True),
sa.Column('additional', sa.String(length=25), nullable=True),
sa.Column('postcode', sa.String(length=10), nullable=True),
sa.Column('city', sa.String(length=25), nullable=True),
sa.Column('country', sa.String(length=25), nullable=True),
sa.Column('user_id', sa.Integer(), nullable=True),
sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
sa.PrimaryKeyConstraint('id')
)
op.create_table('user_skill',
sa.Column('user_id', sa.Integer(), nullable=True),
sa.Column('skill_id', sa.Integer(), nullable=True),
sa.ForeignKeyConstraint(['skill_id'], ['skill.id'], ),
sa.ForeignKeyConstraint(['user_id'], ['user.id'], )
)
# ### end Alembic commands ###
def downgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.drop_table('user_skill')
op.drop_table('address')
op.drop_table('user')
op.drop_table('skill')
op.drop_table('language')
# ### end Alembic commands ###