fix floating point precision issues when converting filter string to integers, add tests

flask_admin/model/filters.py

@@ -107,9 +107,12 @@ class BaseBooleanFilter(BaseFilter):
 class BaseIntFilter(BaseFilter):
     """
         Base Int filter. Adds validation and changes value to python int.
+
+        Avoid using int(float(value)) to also allow using decimals, because it
+        causes precision issues with large numbers.
     """
     def clean(self, value):
-        return int(float(value))
+        return int(value)
 
 
 class BaseFloatFilter(BaseFilter):
@@ -123,9 +126,12 @@ class BaseFloatFilter(BaseFilter):
 class BaseIntListFilter(BaseFilter):
     """
         Base Integer list filter. Adds validation for int "In List" filter.
+
+        Avoid using int(float(value)) to also allow using decimals, because it
+        causes precision issues with large numbers.
     """
     def clean(self, value):
-        return [int(float(v.strip())) for v in value.split(',') if v.strip()]
+        return [int(v.strip()) for v in value.split(',') if v.strip()]
 
 
 class BaseFloatListFilter(BaseFilter):

flask_admin/tests/mongoengine/test_basic.py

@@ -63,6 +63,7 @@ def fill_db(Model1, Model2):
     Model2('string_field_val_2', None, None).save()
     Model2('string_field_val_3', 5000, 25.9).save()
     Model2('string_field_val_4', 9000, 75.5).save()
+    Model2('string_field_val_5', 6169453081680413441).save()
 
     Model1('datetime_obj1', datetime_field=datetime(2014,4,3,1,9,0)).save()
     Model1('datetime_obj2', datetime_field=datetime(2013,3,2,0,8,0)).save()
@@ -325,6 +326,13 @@ def test_column_filters():
     ok_('string_field_val_3' in data)
     ok_('string_field_val_4' not in data)
 
+    # integer - equals (huge number)
+    rv = client.get('/admin/model2/?flt0_0=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('string_field_val_5' in data)
+    ok_('string_field_val_4' not in data)
+
     # integer - equals - test validation
     rv = client.get('/admin/model2/?flt0_0=badval')
     eq_(rv.status_code, 200)
@@ -379,6 +387,13 @@ def test_column_filters():
     ok_('string_field_val_3' in data)
     ok_('string_field_val_4' in data)
 
+    # integer - in list (huge number)
+    rv = client.get('/admin/model2/?flt0_5=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('string_field_val_1' not in data)
+    ok_('string_field_val_5' in data)
+
     # integer - in list - test validation
     rv = client.get('/admin/model2/?flt0_5=5000%2Cbadval')
     eq_(rv.status_code, 200)

flask_admin/tests/peeweemodel/test_basic.py

@@ -98,6 +98,7 @@ def fill_db(Model1, Model2):
     Model2('char_field_val_2', None, None).save()
     Model2('char_field_val_3', 5000, 25.9).save()
     Model2('char_field_val_4', 9000, 75.5).save()
+    Model2('char_field_val_5', 6169453081680413441).save()
 
     Model1('date_obj1', date_field=date(2014,11,17)).save()
     Model1('date_obj2', date_field=date(2013,10,16)).save()
@@ -359,6 +360,13 @@ def test_column_filters():
     ok_('char_field_val_3' in data)
     ok_('char_field_val_4' not in data)
 
+    # integer - equals (huge number)
+    rv = client.get('/admin/model2/?flt0_0=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('char_field_val_5' in data)
+    ok_('char_field_val_4' not in data)
+
     # integer - equals - test validation
     rv = client.get('/admin/model2/?flt0_0=badval')
     eq_(rv.status_code, 200)
@@ -413,6 +421,13 @@ def test_column_filters():
     ok_('char_field_val_3' in data)
     ok_('char_field_val_4' in data)
 
+    # integer - in list (huge number)
+    rv = client.get('/admin/model2/?flt0_5=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('char_field_val_1' not in data)
+    ok_('char_field_val_5' in data)
+
     # integer - in list - test validation
     rv = client.get('/admin/model2/?flt0_5=5000%2Cbadval')
     eq_(rv.status_code, 200)

flask_admin/tests/sqla/test_basic.py

@@ -92,6 +92,7 @@ def fill_db(db, Model1, Model2):
     model2_obj2 = Model2('test2_val_2', model1=model1_obj2, float_field=None)
     model2_obj3 = Model2('test2_val_3', int_field=5000, float_field=25.9)
     model2_obj4 = Model2('test2_val_4', int_field=9000, float_field=75.5)
+    model2_obj5 = Model2('test2_val_5', int_field=6169453081680413441)
 
     date_obj1 = Model1('date_obj1', date_field=date(2014,11,17))
     date_obj2 = Model1('date_obj2', date_field=date(2013,10,16))
@@ -107,7 +108,7 @@ def fill_db(db, Model1, Model2):
 
     db.session.add_all([
         model1_obj1, model1_obj2, model1_obj3, model1_obj4,
-        model2_obj1, model2_obj2, model2_obj3, model2_obj4,
+        model2_obj1, model2_obj2, model2_obj3, model2_obj4, model2_obj5,
         date_obj1, timeonly_obj1, datetime_obj1,
         date_obj2, timeonly_obj2, datetime_obj2,
         enum_obj1, enum_obj2, empty_obj
@@ -674,6 +675,13 @@ def test_column_filters():
     ok_('test2_val_3' in data)
     ok_('test2_val_4' not in data)
 
+    # integer - equals (huge number)
+    rv = client.get('/admin/model2/?flt0_0=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('test2_val_5' in data)
+    ok_('test2_val_4' not in data)
+
     # integer - equals - test validation
     rv = client.get('/admin/model2/?flt0_0=badval')
     eq_(rv.status_code, 200)
@@ -728,6 +736,13 @@ def test_column_filters():
     ok_('test2_val_3' in data)
     ok_('test2_val_4' in data)
 
+    # integer - in list (huge number)
+    rv = client.get('/admin/model2/?flt0_5=6169453081680413441')
+    eq_(rv.status_code, 200)
+    data = rv.data.decode('utf-8')
+    ok_('test2_val_1' not in data)
+    ok_('test2_val_5' in data)
+
     # integer - in list - test validation
     rv = client.get('/admin/model2/?flt0_5=5000%2Cbadval')
     eq_(rv.status_code, 200)