From ef37242e94698d13ecdf2448c77a0fc3148918cb Mon Sep 17 00:00:00 2001
From: Marcello Stanisci <stanisci.m@gmail.com>
Date: Thu, 23 May 2019 14:24:38 +0200
Subject: Remove (breaking) call to old API.

---
 talerbank/app/tests.py | 21 +++++++++++++++++++++
 talerbank/app/views.py | 14 +++++++++-----
 2 files changed, 30 insertions(+), 5 deletions(-)

diff --git a/talerbank/app/tests.py b/talerbank/app/tests.py
index 2aa1c57..3a8dc26 100644
--- a/talerbank/app/tests.py
+++ b/talerbank/app/tests.py
@@ -48,6 +48,27 @@ def clear_db():
         cursor.execute(
             "ALTER SEQUENCE app_banktransaction_id_seq RESTART")
 
+class PublicAccountsTestCase(TestCase):
+    def setUp(self):
+        clear_db()
+        self.user = User.objects.create_user(
+                username="Bank",
+                password="Bank")
+        self.user.save()
+
+        self.user_bank_account = BankAccount(
+            account_no=100,
+            is_public = True,
+            user=self.user)
+
+        self.user_bank_account.save()
+
+    def test_public_accounts(self):
+        self.assertTrue(User.objects.get(username="Bank"))
+
+        response = self.client.get(
+            reverse("public-accounts", urlconf=urls))
+
 class WithdrawTestCase(TestCase):
     def setUp(self):
         self.user_bank_account = BankAccount(
diff --git a/talerbank/app/views.py b/talerbank/app/views.py
index 8f97acf..f4af47c 100644
--- a/talerbank/app/views.py
+++ b/talerbank/app/views.py
@@ -509,10 +509,14 @@ def serve_public_accounts(request, name=None, page=None):
     if not user.bankaccount.is_public:
         raise PrivateAccountException("Can't display public history for private account")
 
-    num_records = query_history_raw(user.bankaccount,
-                                    "both",
-                                    start=-1, # makes sign ignored.
-                                    sign="+").count()
+    # How many records does a user have.
+    num_records = query_history(user.bankaccount,
+                                "both",
+                                # Note: the parameter below is used for slicing arrays
+                                # and django/python is not allowing slicing with big numbers.
+                                (UINT64_MAX / 2 ) / 2,
+                                start=0,
+                                sign="+").count()
     DELTA = 30
     # '//' operator is NO floating point.
     num_pages = max(num_records // DELTA, 1)
@@ -523,7 +527,7 @@ def serve_public_accounts(request, name=None, page=None):
     history = extract_history(user.bankaccount,
                               True,
                               DELTA * page,
-                              -1,
+                              0,
                               "+")[DELTA * (page - 1):(DELTA * page)]
 
     pages = list(range(1, num_pages + 1))
-- 
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