Christoph Urlacher
7f82797066
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98 lines
3.1 KiB
Python
98 lines
3.1 KiB
Python
import csv
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import os.path
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from model import *
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def load_csv(filename):
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if not os.path.exists(filename):
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print(f"Could not load data from file {filename}, as it doesn't exist!")
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return []
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with open(filename, "r", newline="") as file:
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reader = csv.reader(file, delimiter=",")
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next(reader, None) # skip header
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return list(reader)
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def write_csv(filename, objects):
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if len(objects) == 0:
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print(f"Could not write objects to file {filename}, as no objects were given!")
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return
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with open(filename, "w", newline="") as file:
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writer = csv.writer(file, delimiter=",")
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writer.writerow(objects[0].__csv_header__)
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for obj in objects:
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writer.writerow(obj.to_csv())
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# Reload static database data, this has to be called from the app context
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def reload_static_data(db):
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print("Initializing Database with Static Values...")
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# Create it (if it doesn't exist!)
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db.create_all()
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# Clear static data
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Team.query.delete()
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Driver.query.delete()
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Race.query.delete()
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# Reload static data
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for row in load_csv("static_data/teams.csv"):
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db.session.add(Team().from_csv(row))
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for row in load_csv("static_data/drivers.csv"):
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db.session.add(Driver().from_csv(row))
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for row in load_csv("static_data/races.csv"):
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db.session.add(Race().from_csv(row))
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db.session.commit()
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def reload_dynamic_data(db):
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print("Initializing Database with Dynamic Values...")
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# Create it (if it doesn't exist!)
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db.create_all()
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# Clear dynamic data
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User.query.delete()
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RaceResult.query.delete()
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RaceGuess.query.delete()
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TeamWinners.query.delete()
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PodiumDrivers.query.delete()
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SeasonGuess.query.delete()
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# Reload dynamic data
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for row in load_csv("dynamic_data/users.csv"):
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db.session.add(User().from_csv(row))
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for row in load_csv("dynamic_data/raceresults.csv"):
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db.session.add(RaceResult().from_csv(row))
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for row in load_csv("dynamic_data/raceguesses.csv"):
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db.session.add(RaceGuess().from_csv(row))
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for row in load_csv("dynamic_data/teamwinners.csv"):
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db.session.add(TeamWinners().from_csv(row))
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for row in load_csv("dynamic_data/podiumdrivers.csv"):
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db.session.add(PodiumDrivers().from_csv(row))
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for row in load_csv("dynamic_data/seasonguesses.csv"):
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db.session.add(SeasonGuess().from_csv(row))
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db.session.commit()
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def export_dynamic_data():
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print("Exporting Userdata...")
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users = User.query.all()
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raceresults = RaceResult.query.all()
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raceguesses = RaceGuess.query.all()
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teamwinners = TeamWinners.query.all()
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podiumdrivers = PodiumDrivers.query.all()
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seasonguesses = SeasonGuess.query.all()
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write_csv("dynamic_data/users.csv", users)
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write_csv("dynamic_data/raceresults.csv", raceresults)
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write_csv("dynamic_data/raceguesses.csv", raceguesses)
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write_csv("dynamic_data/teamwinners.csv", teamwinners)
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write_csv("dynamic_data/podiumdrivers.csv", podiumdrivers)
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write_csv("dynamic_data/seasonguesses.csv", seasonguesses)
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