100 lines
2.8 KiB
Python
100 lines
2.8 KiB
Python
from subprocess import run
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from flask_sqlalchemy import SQLAlchemy
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from flask import Flask
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from datetime import datetime
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from constants import DB_NAME, DB_USER, DB_PW
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def create_database():
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script = "database/mariadb_setup.sh"
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output = run([script, DB_NAME, DB_USER, DB_PW])
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if output.returncode != 0:
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print("Error: couldn't create database")
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exit()
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def create_connection():
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host = "localhost:3306"
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connection_uri = "mysql+pymysql://{user}:{pw}@{url}/{db}".format(
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user=DB_USER, pw=DB_PW, url=host, db=DB_NAME
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)
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app = Flask(__name__)
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app.config["SQLALCHEMY_DATABASE_URI"] = connection_uri
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app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
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db = SQLAlchemy(app)
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return db
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db = create_connection()
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class Glacier(db.Model):
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uid = db.Column(db.Integer, primary_key=True)
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country = db.Column(db.String(60))
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name = db.Column(db.String(60))
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def __init__(self, uid, country, name):
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self.uid = uid
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self.country = country
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self.name = name
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class Annual_Data(db.Model):
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glacier = db.relationship("Glacier", backref=db.backref("posts", lazy=True))
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uid = db.Column(
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db.Integer, db.ForeignKey("glacier.uid"), nullable=False, primary_key=True
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)
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surface = db.Column(db.Integer)
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volume = db.Column(db.Integer)
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thickness = db.Column(db.Integer)
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year = db.Column(db.Integer, primary_key=True)
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def __init__(self, surface, volume, thickness, year):
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self.surface = surface
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self.volume = volume
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self.thickness = thickness
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self.year = year
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class Annual_Change(db.Model):
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glacier = db.relationship("Glacier", backref=db.backref("posts", lazy=True))
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uid = db.Column(
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db.Integer, db.ForeignKey("glacier.uid"), nullable=False, primary_key=True
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)
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surface_change = db.Column(db.Integer)
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volume_change = db.Column(db.Integer)
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thickness_change = db.Column(db.Integer)
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year = db.Column(db.Integer, primary_key=True)
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def __init__(self, surface_change, volume_change, thickness_change, year):
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self.surface_change = surface_change
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self.volume_change = volume_change
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self.thickness_change = thickness_change
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self.year = year
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class User(db.Model):
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uid = db.Column(db.Integer, primary_key=True)
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registration_date = db.Column(db.DateTime, nullable=False)
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username = db.Column(db.String(20), nullable=False, unique=True)
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password = db.Column(db.String(60))
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def __init__(self, uid, username, password):
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self.uid = uid
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self.registration_date = datetime.today()
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self.username = username
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self.password = password
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def create_tables():
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db.create_all()
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def main():
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create_database()
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create_tables()
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if __name__ == "__main__":
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main()
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