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import datetime
import re
from django.utils.encoding import force_text
from django.contrib.gis.db import models
from django.utils import timezone
from bs4 import BeautifulSoup
import requests
class Item(models.Model):
name = models.CharField(max_length=200)
purchase_price = models.IntegerField()
url = models.CharField(max_length=200)
currently_own = models.BooleanField(blank=True, default=False)
sold = models.BooleanField(blank=True, default=False)
sale_price = models.IntegerField()
def save(self, **kwargs):
super(Item, self).save()
def __str__(self):
return self.name
class TrackedItem(models.Model):
title = models.CharField(max_length=200)
url = models.CharField(max_length=200)
DESIRE = (
(0, '1'),
(1, '2'),
(2, '3'),
(3, '4'),
(4, '5'),
)
amount_desired = models.IntegerField(choices=DESIRE, default=0)
date_ending = models.DateTimeField(default=timezone.now)
class Meta:
ordering = ('date_ending', 'amount_desired')
get_latest_by = 'date_ending'
@property
def get_latest_price(self):
return self.price_set.latest().price
def admin_link(self):
return force_text('<a href="%s">View Auction page</a>' % (self.url))
admin_link.allow_tags = True
admin_link.short_description = 'Link'
def __str__(self):
return self.title
def save(self, **kwargs):
super(TrackedItem, self).save()
class Price(models.Model):
date = models.DateTimeField(blank=True)
price = models.DecimalField(max_digits=6, decimal_places=2)
item = models.ForeignKey(TrackedItem)
class Meta:
ordering = ('-date',)
get_latest_by = 'date'
def __str__(self):
return str(self.date)
def save(self, **kwargs):
if not self.pk:
self.date = datetime.datetime.now()
super(Price, self).save()
def update_tracked_item_price(item):
r = requests.get(item.url)
soup = BeautifulSoup(r.text, "lxml")
numbers = re.compile('\d+(?:\.\d+)?')
price = soup.find(itemprop="price").get_text()
price = numbers.findall(price)[0]
l, created = Price.objects.get_or_create(
price=price,
item=item
)
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