wrote my own ebay tracker

1 files changed, 64 insertions, 0 deletions

diff --git a/app/ebay/models.py b/app/ebay/models.py
new file mode 100644
index 0000000..4338197
--- /dev/null
+++ b/app/ebay/models.py
@@ -0,0 +1,64 @@
+import datetime 
+import re
+from django.contrib.gis.db import models
+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):
+    url = models.CharField(max_length=200)
+    title = models.CharField(max_length=200)
+    
+    def save(self, **kwargs):
+        super(TrackedItem, self).save()
+
+    @property
+    def get_latest_price(self):
+        return self.price_set.latest().price
+
+    def __str__(self):
+        return self.title
+
+
+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
+    )