functions for campaign model and ambassador goal

app/campaigns/models.py

@@ -11,6 +11,7 @@ class AmbassadorMap(db.Model):
     id            = Column('id', INTEGER(), primary_key=True)
     campaign_id   = Column('campaign_id', INTEGER(), nullable=False)
     user_id       = Column('user_id', INTEGER(), nullable=False)
+    goal          = Column('ambassador_goal', INTEGER())
 
 
 
@@ -26,7 +27,16 @@ class Campaign(db.Model):
         from app.main.models import Donation
         return Donation.query.filter_by(campaign_id=self.id).all()
     
+    def get_amount_raised(self):
+        donations = self.get_donations()
+        total = 0
+        for donation in donations:
+            total += donation.amount
+        return total
+    
+    def get_ambassadors(self):
+        return AmbassadorMap.query.filter_by(campaign_id=self.id).all()
+
 
     def __repr__(self) -> str:
         return f"{self.id} - {self.title}"
-    # donation_id = Column(INTEGER, ForeignKey('donation.id'))