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Description:

plone.supermodel 2.0.4

Introduction
plone.supermodel provides XML import and export for schema interfaces based on
zope.schema fields. The principal use cases are:

1. Define a schema interface in code based on an XML file. This can be done
with syntax like:
>>> from plone.supermodel import xmlSchema
>>> IMySchema = xmlSchema("myschema.xml")
2. Save and load interface definitions via an XML format. To turn a schema
interface into XML, you can do:
>>> from plone.supermodel import serializeSchema
>>> xml_string = serializeSchema(IMySchema)

To get a schema from an XML file, you can use the xmlSchema() function above,
or you can use the more powerful spec() function, which turns a dict of all
schemata and widget hints in a given XML file.
See schema.txt and interfaces.py in the source code for more information,
including details on how to give widget hints for forms and how to keep
multiple schemata in the same XML file.

Supermodel vs. Userschema
This package is quite similar to Tres Seaver’s “userschema” library, which
can be found at http://agendaless.com/Members/tseaver/software/userschema.
In fact, plone.supermodel was originally based on userschema. However, as the
package was refined and refactored, less and less of userschema remained,
to the point where we’d have needed to significantly refactor the latter to
keep using it.
The XML import/export code is currently based on algorithms that were written
for plone.app.portlets and plone.app.contentrules’ GenericSetup handlers.
Some of the key differences between the two packages are:

userschema can create schema interfaces from HTML forms and CSV
spreadsheets. plone.supermodel does not support such configuration.
Schemata created with userschema are typically loaded at startup, with
a ZCML directive. plone.supermodel supports a “pseudo-base class” syntax,
as seen above, to define interfaces in Python code. Beyond that, its API
is more geared towards runtime configuration.
plone.supermodel supports serialisation of schemata to XML.
The plone.supermodel XML syntax is more directly tied to zope.schema
fields, and infers most parameters from the schema interface declared by
each zope.schema field. This has two advantages:

API documentation for zope.schema can be easily applied to <schema />
blocks
New fields and obscure attributes are easier to support

plone.supermodel’s XML schema is intended to support more schema metadata,
including widget hints.

In the future, it may be possible to make userschema reuse part of
plone.supermodel or vice-a-versa, with more refactoring.

Changelog

2.0.4 (2024-01-22)
Internal:

Update configuration files.
[plone devs] (55bda5c9, 6e36bcc4)

2.0.3 (2023-03-22)
Internal:

Update configuration files.
[plone devs] (13d8d6c0, 243ca9ec)

2.0.2 (2023-02-07)
Bug fixes:

Update package configuration.
[gforcada] (#1)

2.0.1 (2023-01-27)
Bug fixes:

Unify repository configuration via github.com/plone/meta.
[gforcada, maurits] (#1)

2.0.0 (2022-07-13)
Bug fixes:

Release 1.6.4 as 2.0.0. This was meant as a major release.
I have rereleased 1.6.3 as 1.6.5.
[maurits] (#27)

1.6.4 (2021-09-01)
Breaking changes:

Make finalizeSchema more robust by not handling behavior schema classes (#27)

1.6.3 (2020-11-17)
Bug fixes:

For increased security, in the xml parser do not resolve entities, and remove processing instructions.
[maurits] (#3209)

1.6.2 (2020-06-24)
Bug fixes:

Decimal field moved in zope.schema, do not depend on specific dotted name in test b/c it does not matter.
[jensens] (#37)
Fix a deprecation warning on a regular expression [ale-rt] (#38)

1.6.1 (2020-04-22)
Bug fixes:

Minor packaging updates. (#1)

1.6.0 (2020-03-09)
New features:

zope.interface master, upcoming v5.0, initializes _v_attrs with None to save memory and creates the dict upon first usage.
So we need to do so in order to support the new version. (#33)
Support for zope.interface 4.7+ [jensens] (#34)

1.5.0 (2019-12-11)
New features:

Add support for choices of integers for improved registry.xml export.
[jone] (#32)

1.4.1 (2019-11-25)
Bug fixes:

tests to ensure schema.Set is serialized consistently (#30)

1.4.0 (2018-09-28)
New features:

Python 3 compatibility.
[pbauer, davilima6, dhavlik, ale-rt]

1.3.4 (2017-11-24)
Bug fixes:

Python3 compatibility with sixer
[ale-rt]

1.3.3 (2017-06-04)
Bug fixes:

Fixed typecasting of IChoice based on its vocabulary. #16
[iham]

1.3.2 (2017-02-05)
Bug fixes:

Fix issue where supermodel XML choice field parser failed to parse vocabulary
values with separate keys and display titles, because the parser expected
values tag to not have any namespace.
[datakurre]

1.3.1 (2016-12-30)
Bug fixes:

Test-Fix: Support latest zope.i18nmessageid.
[jensens]

1.3.0 (2016-06-07)
New:

Python 2.6 and Plone 4.3 no longer officially supported. It might
still work, but no special effort is made to keep this compatible.
[maurits]
Support to define the order of fieldsets.
[jensens]

Fixes:

Remove temporary fix regarding test failures on Zope 4, as it’s already fixed.
[thet]
Update setup.py url to point to github location.
[esteele]
Unset _init_field flag on init completion.
[metatoaster]

1.2.7 (2016-02-12)
Fixes:

Add temporary fix for a test failure within a Zope 4 environment.
[pbauer]

1.2.6 (2014-10-20)

Code modernization: sorted imports, use decorators, utf8 headers.
[jensens]
Add i18n serialization from schema value to XML model
[datakurre]

1.2.5 (2014-09-07)

Support Choice fields with terms containing distinct title from value
as option, while preserving backward-compatible round-trip for all
Choice fields where title is not distinct from value.
[seanupton]
Fix parsing of empty Choice term to u’’, not None, which addresses a
cause of https://github.com/plone/plone.app.dexterity/issues/49
[seanupton]
Explicitly construct SimpleTerm instances for each Choice field
element, instead of relying on zope.schema constructors to do so.
This ensures that all terms have non-None title attributes.
[seanupton]
Tests for ChoiceHandler serialization and parsing.
[seanupton]

1.2.4 (2014-01-27)

Add invariant tag, a sub-element of schema, that accepts a dotted name as
a value. Invariants must provide plone.supermodel.interface.IInvariant.
[smcmahon]
Replace deprecated test assert statements.
[timo]

1.2.3 (2013-08-14)

Add defaultFactory tag for Dexterity XML. Define an interface
IDefaultFactory. defaultFactories specified via XML must implement it or
IContextAwareDefaultFactory.
[smcmahon]

1.2.2 (2013-05-23)

Avoid trying to process XML comments within field values.
[davisagli]

1.2.1 (2013-01-01)

Allow XML comments in field definitions.
[gweis]

1.2.0 (2012-10-17)

Nothing changed yet.

1.1.2 (2012-08-29)

Use lxml instead of elementtree.
[davisagli]
Avoid a test dependency on zope.app.testing.
[davisagli]

1.1.1 (2012-04-15)

Fix a packaging error.
[esteele]

1.1 (2012-04-15)

Support i18n:domain and i18n:translate for internationalization.
[davisagli]
When an error is encountered while parsing a supermodel, the exception
now provides the filename, line number, and source of the part of the
model that was being processed. Inclusion of the line number and source
requires lxml.
[davisagli]
Add model.Schema and directives to avoid grok dependency.
[elro]

1.0.4 - 2012-02-20

When syncing to a schema that inherits fields from a base, include fields
with the same names as the inherited fields even when overwrite is False.
This fixes http://code.google.com/p/dexterity/issues/detail?id=253
[davisagli]

1.0.3 - 2011-05-20

Relicense under BSD license.
See http://plone.org/foundation/materials/foundation-resolutions/plone-framework-components-relicensing-policy
[davisagli]

1.0.2 - 2011-05-02

Only convert Choice field values attribute into a vocabulary when it is
necessary to handle unicode values. This fixes a regression in compatibility
with plone.registry.
[davisagli]

1.0.1 - 2011-04-30

Adjust manifest to exclude .pyc files.
[davisagli]

1.0 - 2011-04-30

Handle serializing tokenized vocabularies with unicode values as long as the
terms’ tokens are equal to the utf8-encoded values.
[davisagli]

1.0b8 - 2011-03-18

Add MANIFEST.in.
[WouterVH]
Field names should be strings, not unicode.
[elro]

1.0b7 - 2011-03-03

Support serialization of nested dicts/lists.
[elro]

1.0b6 - 2011-01-04

Declare zope.app.testing as a test dependency for Zope 2.13 compatibility.
[esteele]
Fix namespace bug which could prevent loading Dict and Collection elements.
[davisagli]

1.0b5 - 2010-04-19

Added support for zope.schema.Decimal fields.
[optilude]

1.0b4 - 2009-11-17

Ignored vocabularyName property when writing Choice fields. The constructor
still uses they ‘vocabulary’ key in an overloaded capacity. We only support
‘vocabulary’ with a named vocabulary, or ‘values’ with a list of values.
This fixes test failures on Zope 2.12 / zope.schema 3.5.4.
[optilude]

1.0b3 - 2009-09-28

Add support for synchronising marker interfaces found on source fields
to syncSchema().
[optilude]

1.0b2 - 2009-07-12

Changed API methods and arguments to mixedCase to be more consistent with
the rest of Zope. This is a non-backwards-compatible change. Our profuse
apologies, but it’s now or never. :-/
If you find that you get import errors or unknown keyword arguments in your
code, please change names from foo_bar too fooBar, e.g. load_file() becomes
loadFile().
[optilude]

No longer include name kwarg to Field constructor if no name was set
[MatthewWilkes]

1.0b1 - 2009-04-17

Initial release