Hi Dave,
Thanks for generateDS. It's been doing a good job for us! We were
using 1.20f for a long time and recently updated to 2.4c.
We've run into three problems which I describe below. For two of
these I have patches, for the third I'm still digging.
===========================================================================
First problem: UnicodeEncodeError when exporting. Most of the
calls to outfile.write() honor ExternalEncoding but one of them
doesn't, and that causes a UnicodeEncodeError when Python tries
to use default 7-bit ASCII. Here's the patch I'm using:
diff --git a/generateds/generateDS.py b/generateds/generateDS.py
--- a/generateds/generateDS.py
+++ b/generateds/generateDS.py
@@ -1787,7 +1787,7 @@
s1 = " outfile.write('>')\n"
wrt(s1)
if not element.isMixed():
- s1 = " outfile.write(self.valueOf_)\n"
+ s1 = "
outfile.write(unicode(self.valueOf_).encode(ExternalEncoding))\n"
wrt(s1)
else:
s1 = " outfile.write('>\\n')\n"
I wrapped self.valueOf_ in unicode() just in case it can ever be
a non-string; casting it ensures that the encode method will be
available, and it's a noop if self.valueOf_ is already a unicode
object.
===========================================================================
Second problem: Given the following XSD:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns="http://www.hp.com/schemas/foo/2009/12/20";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.hp.com/schemas/foo/2009/12/20";
elementFormDefault="qualified" version="1">
<xs:element name="Reasons">
<xs:complexType>
<xs:sequence>
<xs:element name="Reason" minOccurs="0" maxOccurs="unbounded">
<xs:complexType>
<xs:simpleContent>
<xs:extension base="ReasonsEnum">
<xs:attribute name="LocId" type="xs:string"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:simpleType name="ReasonsEnum">
<xs:restriction base="xs:NMTOKEN">
<xs:enumeration value="foo"/>
<xs:enumeration value="bar"/>
<xs:enumeration value="baz"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
The generated output contains:
class Reasons(GeneratedsSuper):
...
def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
if nodeName_ == 'Reason':
obj_ = None
self.Reason.append(obj_)
however "Reason" is its own class because it has the attribute
LocId, so the output we want is this:
class Reasons(GeneratedsSuper):
...
def buildChildren(self, child_, node, nodeName_, fromsubclass_=False):
if nodeName_ == 'Reason':
obj_ = Reason.factory()
obj_.build(child_)
self.Reason.append(obj_)
Presently I'm fixing this with the following patch, but I don't
know if it could cause problems elsewhere:
diff --git a/generateds/generateDS.py b/generateds/generateDS.py
--- a/generateds/generateDS.py
+++ b/generateds/generateDS.py
@@ -2676,9 +2676,7 @@
wrt(s1)
# Is this a simple type?
base = child.getBase()
- if (child.getSimpleType() or
- (base and base in SimpleTypeDict)
- ):
+ if child.getSimpleType():
s1 = " obj_ = None\n"
wrt(s1)
else:
===========================================================================
Third problem: Given the following XSD:
<?xml version="1.0" encoding="utf-8"?>
<xs:schema xmlns="http://www.hp.com/schemas/bar/2009/12/20";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.hp.com/schemas/bar/2009/12/20";
elementFormDefault="qualified" version="1">
<xs:element name="bar" type="barType"/>
<xs:simpleType name="barType">
<xs:restriction base="xs:token">
<xs:enumeration value="foo"/>
<xs:enumeration value="bar"/>
<xs:enumeration value="baz"/>
</xs:restriction>
</xs:simpleType>
</xs:schema>
I need to be able to instantiate and export a "bar" object, but
the generated file doesn't contain any classes. I think the
problem here is that normally generateDS represents simple
elements as primitive Python values in the XML tree, but we need
a class when the element appears at the top level.
I noted there's an array called topLevelSimpleTypes which is
maybe related to this, but it doesn't seem to be fully
implemented.
Any ideas?
Thanks,
Aron
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