Update app.py

app.py

@@ -54,7 +54,7 @@ def signup():
     if request.method == "POST":
         name = request.form.get("name")
         phone = request.form.get("phone")
-        email = request.form.get("email").strip().lower()  # Ensure case-insensitive match
+        email = request.form.get("email").strip()  # Trim spaces
         password = request.form.get("password")
         referral_code = request.form.get("referral")  # Fetch referral code from the form
         generated_referral_code = generate_referral_code()
@@ -62,16 +62,17 @@ def signup():
         try:
             ref = 0  # Default reward points for new user
 
-            # **Fix: Check if the email already exists (Case-Insensitive Match)**
-            email_query = f"SELECT Id FROM Customer_Login__c WHERE LOWER(Email__c) = '{email}'"
+            # **Fix: Fetch all emails and compare in Python (Case-Insensitive)**
+            email_query = "SELECT Id, Email__c FROM Customer_Login__c"
             email_result = sf.query(email_query)
 
-            if email_result["records"]:
+            # Convert all stored emails to lowercase and compare with user input
+            existing_emails = {record["Email__c"].lower() for record in email_result["records"]}
+            if email.lower() in existing_emails:
                 return render_template("signup.html", error="Email already in use! Please use a different email.")
 
             # Check if a referral code is entered
             if referral_code:
-                # Query Salesforce to check if the referral code exists
                 referral_query = f"SELECT Id, Email__c, Name FROM Customer_Login__c WHERE Referral__c = '{referral_code}'"
                 referral_result = sf.query(referral_query)
 
@@ -91,7 +92,6 @@ def signup():
                 existing_coupon_result = sf.query(existing_coupon_query)
 
                 if existing_coupon_result['records']:
-                    # If record exists, append the new coupon on the next line
                     referral_record = existing_coupon_result['records'][0]
                     referral_id = referral_record['Id']
                     existing_coupons = referral_record.get('Coupon_Code__c', '')