Add alias model

esi/webapp/models/wp.py

@@ -398,6 +398,16 @@ class WpEsiTag(models.Model):
         return self.name
 
 
+class WpEsiTagAlias(models.Model):
+    tag_id = models.IntegerField(primary_key=True)
+    alias = models.CharField(max_length=255)
+
+    class Meta:
+        managed = False
+        db_table = 'wp_esi_tag_alias'
+        unique_together = (('tag_id', 'alias'),)
+
+
 class WpEsiTagEntity(models.Model):
     tag_id = models.IntegerField(primary_key=True)
     entity_id = models.IntegerField()