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models.py
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models.py
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from server import db
from datetime import datetime
import string
from random import choices
class Url(db.Model):
__tablename__ = 'urls'
id = db.Column(db.Integer, primary_key=True)
date = db.Column(db.DateTime, default=datetime.now)
origin = db.Column(db.String(100), unique=True)
final = db.Column(db.String(3), unique=True)
def __init__(self, origin):
self.origin = origin
self.final = self.short_generator()
def __repr__(self):
return 'id: {}'.format(self.id)
def short_generator(self):
characters = string.digits + string.ascii_letters
short_url = "".join(choices(characters, k=3))
link = self.query.filter_by(final=short_url).first()
if link:
return self.short_generator()
return short_url
@property
def serialize(self):
return {
'id': self.id,
'date': self.date,
'origin': self.origin,
'final':self.final
}