Commit inicial

Habia trabajado un buen poco pero como vi que tenia que separar los
repositorios perdi bastante la historia :c

lists/models.py

@@ -0,0 +1,51 @@
+from django.contrib.auth.models import User
+from django.db.models import CharField, TextField, IntegerField
+from django.db.models import ForeignKey, ManyToManyField
+from django.db.models import CASCADE
+from django.db.models import Model
+
+
+class Entity(Model):
+    ENTITY_TYPES = [
+        ('artist', 'Artista'),
+        ('release-group', 'Grupo de Lanzamientos'),
+        ('release', 'Lanzamiento'),
+        ('recording', 'Grabación')
+    ]
+    mbid = CharField(max_length=36, primary_key=True)
+    entity_type = CharField(max_length=25, choices=ENTITY_TYPES)
+
+
+class Tag(Model):
+    user = ForeignKey(User, on_delete=CASCADE)
+    name = CharField(max_length=50)
+
+
+class ListItem(Model):
+    user = ForeignKey(User, on_delete=CASCADE)
+    entity = ForeignKey(Entity, on_delete=CASCADE)
+    tags = ManyToManyField(Tag, on_delete=CASCADE)
+
+
+class Stars(Model):
+    user = ForeignKey(User, on_delete=CASCADE)
+    entity = ForeignKey(ListItem, on_delete=CASCADE)
+    quantity = IntegerField()
+
+
+class Opinion(Model):
+    user = ForeignKey(User, on_delete=CASCADE)
+    entity = ForeignKey(ListItem, on_delete=CASCADE)
+    opinion_text = TextField()
+
+
+class OpinionHelpful(Model):
+    VOTES = [
+        ('Y', 'Si'),
+        ('N', 'No'),
+        ('F', 'Divertida')
+    ]
+
+    user = ForeignKey(User, on_delete=CASCADE)
+    opinion = ForeignKey(Opinion, on_delete=CASCADE)
+    vote = CharField(max_length=1, choices=VOTES)