Project, Web Technologies, Year 3, Semester 1
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import sqlite3
from flask import current_app, g
import os
DB_FILE = os.environ.get('DB_FILE', './data/db.sqlite')
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get_return = sqlite3.Connection
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def get() -> get_return:
if 'db' not in g:
g.db = sqlite3.connect(
DB_FILE,
detect_types=sqlite3.PARSE_DECLTYPES,
)
g.db.row_factory = sqlite3.Row
return g.db
def close(e=None):
db = g.pop('db', None)
if db:
db.close()
def init():
db = get()
with current_app.open_resource('init.sql') as f:
db.executescript(f.read().decode('utf8'))
db.commit()
def init_app(app):
app.teardown_appcontext(close)
import os.path
if not os.path.exists(DB_FILE):
with app.app_context():
init()