From c2dd2089d20226459b1d0e3a5567ec4955a9c125 Mon Sep 17 00:00:00 2001
From: Kelvin Hammond <hammond.kelvin@gmail.com>
Date: Fri, 14 Feb 2014 13:51:01 -0600
Subject: [PATCH 1/3] Allow non-existent field names in ModelForm Meta exclude

---
 wtforms_alchemy/generator.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/wtforms_alchemy/generator.py b/wtforms_alchemy/generator.py
index 61aae13..fc14ae1 100644
--- a/wtforms_alchemy/generator.py
+++ b/wtforms_alchemy/generator.py
@@ -163,7 +163,8 @@ def filter_attributes(self, attrs):
 
             if self.meta.exclude:
                 for key in self.meta.exclude:
-                    del attrs[key]
+                    if key in attrs:
+                        del attrs[key]
         return attrs
 
     def validate_attribute(self, attr_name):

From b6d8a0ee195c05444debcd806decc0e599dce7f7 Mon Sep 17 00:00:00 2001
From: Kelvin Hammond <hammond.kelvin@gmail.com>
Date: Fri, 14 Feb 2014 14:04:27 -0600
Subject: [PATCH 2/3] Removed NumberRangeField so project builds

---
 wtforms_alchemy/__init__.py  | 2 --
 wtforms_alchemy/generator.py | 2 --
 2 files changed, 4 deletions(-)

diff --git a/wtforms_alchemy/__init__.py b/wtforms_alchemy/__init__.py
index 5b3c5c2..47cfcfc 100644
--- a/wtforms_alchemy/__init__.py
+++ b/wtforms_alchemy/__init__.py
@@ -9,7 +9,6 @@
 from wtforms_components import (
     DateRange,
     Email,
-    NumberRangeField,
     PhoneNumberField,
     SelectField,
     SelectMultipleField,
@@ -40,7 +39,6 @@
     InvalidAttributeException,
     ModelFieldList,
     ModelFormField,
-    NumberRangeField,
     PhoneNumberField,
     SelectField,
     SelectMultipleField,
diff --git a/wtforms_alchemy/generator.py b/wtforms_alchemy/generator.py
index fc14ae1..93d7f3b 100644
--- a/wtforms_alchemy/generator.py
+++ b/wtforms_alchemy/generator.py
@@ -27,7 +27,6 @@
     DecimalField,
     EmailField,
     IntegerField,
-    NumberRangeField,
     PhoneNumberField,
     SelectField,
     StringField,
@@ -88,7 +87,6 @@ class FormGenerator(object):
         (types.ChoiceType, SelectField),
         (types.ColorType, ColorField),
         (types.EmailType, EmailField),
-        (types.NumberRangeType, NumberRangeField),
         (types.PasswordType, PasswordField),
         (types.PhoneNumberType, PhoneNumberField),
         (types.ScalarListType, StringField),

From 2197cd7f40f9367a420397d713439655f49feba5 Mon Sep 17 00:00:00 2001
From: Kelvin Hammond <hammond.kelvin@gmail.com>
Date: Sat, 15 Feb 2014 11:33:55 -0600
Subject: [PATCH 3/3] Added silent_exclude to form generator

---
 wtforms_alchemy/__init__.py  | 5 +++++
 wtforms_alchemy/generator.py | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/wtforms_alchemy/__init__.py b/wtforms_alchemy/__init__.py
index 47cfcfc..5394048 100644
--- a/wtforms_alchemy/__init__.py
+++ b/wtforms_alchemy/__init__.py
@@ -205,6 +205,11 @@ class Meta:
             #: List of fields to only include in the generated form.
             only = defaults.pop('only', [])
 
+            #: Silently ignore exclude elements which aren't mapped
+            #:
+            #: By Default silently ignores missing elements
+            silent_exclude = defaults.pop('silent_exclude', True)
+
         def __init__(self, *args, **kwargs):
             """Sets object as form attribute."""
 
diff --git a/wtforms_alchemy/generator.py b/wtforms_alchemy/generator.py
index 93d7f3b..33bcb3e 100644
--- a/wtforms_alchemy/generator.py
+++ b/wtforms_alchemy/generator.py
@@ -161,7 +161,9 @@ def filter_attributes(self, attrs):
 
             if self.meta.exclude:
                 for key in self.meta.exclude:
-                    if key in attrs:
+                    if self.meta.silent_exclude and not key in attrs:
+                        continue
+                    else:
                         del attrs[key]
         return attrs