Metadata-Version: 1.0
Name: Products.CMFEditions
Version: 2.0.1
Summary: Versioning for Plone
Home-page: http://pypi.python.org/pypi/Products.CMFEditions
Author: CMFEditions contributers
Author-email: collective-versioning@lists.sourceforge.net
License: GPL
Description: ===========
        CMFEditions
        ===========
        
        ------
        README
        ------
        
        CMFEditions provides versioning in Plone.
        
        - It works out of the box.
        - It's higly extensible for specific use cases.
        
        Out Of The Box Experience
        =========================
        
        Versionable content items edit views now allows saving a version on save
        (automatically or manually). The version history may be accessed quickly from
        the view view.
        
        Versionable content types also have an additional tab with version related
        functionality:
        
        - save new version
        - preview an old version
        - retrieve an old version (replacing the current state in the tree)
        - diffing versions
        
        A content panel allows configuring the versioning policy by content type:
        
        - enable or disable versioning
        - auto-versioning on save
        - auto-versioning on retrieve
        
        By default the contents of a folder is versioned independently of the folder.
        This may be changed through the ZMI and for specific cases on python level.
        Basic support for Archetypes references is built in.
        
        The current strategy is to save everything of the content item (incl. security
        information, workflow state, etc.). On retrieve some of these information are
        filtered out. This policy may completely be changed depending on specific needs
        (see modifiers below). 
        
        Extensibility
        =============
        
        CMFEditions was from the beginning developed with extensibility in mind.
        A handful of tools provide the whole functionality:
        
        - repository layer: This is the public main API. The repository layer 
          cares about recursive storing and retrieving of content items from/to
          Zope 2's Object File System (OFS).
        - archivist layer: It knows *how to clone* content items. The 
          archivist "is Mr. Pickle".
        - modifiers: They're invoked by the archivist and know *what to clone*.
          This the main customization point. A modifier knows about what 
          information on an object is a reference and if the referenced object
          has to be versioned also.
        - storage: Is responsible of storing content items versions in a 
          history. The current storage implementation is a ZODB storage (it 
          uses Zope Version Control Product from ZC). Other storages may be
          written (svn, file based, xml based, etc.). The storage API is quite
          simple and the storage implementation doesn't have to care about 
          reference stuff as this is already done by the upper layers.
        - purge policy: The purge policy is called on every save operations
          and has full control over the version to save and the whole history.
          The current implementation may be configured to only hold the n 
          current versions by purging the older versions from the repository.
          This functionality is by default disabled. It may be disabled through 
          the ZMI. You should take care when you're saving objects with a lot 
          of interrelations. Purging functionality is quite new!
        
        
        Additional Documentation
        ========================
        
        A couple of presentations and ReSt documents may be found in 
        documentation package that has to be downloaded separately (or the 
        ``doc`` folder of CMFEditions).
        
        The CMFEditions team also started adding `documentation in the download 
        area <http://plone.org/products/cmfeditions/documentation>` of plone.org.
        You're welcome to help out.
        
        
        Dependencies
        ============
        
        CMFEditions is part of the Plone distribution and all dependencies are already
        included. Please refer to the dependency information of Plone for any details.
        
        
        Migrating from Older Versions of CMFEditions
        ============================================
        
        We know there are severe problems when migrating from 1.0alpha3, 
        1.0alpha4 or trunk checkout from May 2006 and before.
        Please `contact us <mailto:collective-versioning@lists.sourceforge.net>` 
        for assistance. We're interested in making migrations bullet proof.
        
        
        Feedback
        ========
        
        - Please `report bugs <http://plone.org/products/cmfeditions/issues>` 
          to the CMFEditions tracker on plone.org.
        - For feedback and questions the developers may be contacted on the 
          `mailing list <mailto:collective-versioning@lists.sourceforge.net>`.
        
        
        Contributing
        ============
        
        Just do it and communicate with us over the 
        `mailing list <mailto:collective-versioning@lists.sourceforge.net>`!
        
        
        Credits & Sponsoring
        ====================
        
        Several people and organizations have made CMFEditions possible:
        
          See CREDITS.txt
        
        Changelog
        =========
        
        2.0.1 - 2010-08-08
        ------------------
        
        - Changed "version" to "revision" in portal messages.
          [kleist]
        
        2.0 - 2010-07-18
        ----------------
        
        - Changed the text in the `@@history` page to use the term revision instead of
          version. This fixes http://dev.plone.org/plone/ticket/10740.
          [hannosch]
        
        - Added dependency on plone.app.blob, to pull in the needed bits for
          handling blobs in the modifiers.
          [davidblewett]
        
        - Added event listeners for Archetypes' ObjectInitializedEvent and
          ObjectEditedEvent events (to go along with the existing WebDAV ones).
          [davidblewett]
        
        - Changed Plone 3 backward compatible handling to also work with Chameleon.
          [do3cc]
        
        2.0b9 - 2010-06-13
        ------------------
        
        - Avoid dependency on zope.app.testing.
          [hannosch]
        
        2.0b8 - 2010-05-20
        ------------------
        
        - Added notification of changes on revert, via zope.lifecycle's
          ObjectModifiedEvent and Archetypes' ObjectEditedEvent.
          [davidblewett]
        
        - Fixed revertversion.py so that it didn't tack on a lone / to the redirect
          URL.
          [davidblewett]
        
        - Fixed CloneBlob & company, so that they check that the field provides an
          interface instead of using isinstance.
          [davidblewett]
        
        - Fixed CloneBlob to not trample its local variables, allowing for multiple
          blob fields on a type.
          [davidblewett]
        
        - Updated i18n methods that used mappings.
          [davidblewett]
        
        2.0b7 - 2010-05-08
        ------------------
        
        - Fix BLOB history corruption
          http://dev.plone.org/plone/ticket/10503
          [do3cc]
        
        2.0b6 - 2010-04-20
        ------------------
        
        - Widen html diff display to work better with new layout.
          [alecm]
        
        - Fix issue with versioning of large folders.
          http://dev.plone.org/plone/ticket/10457
          [alecm]
        
        2.0b5 - 2010-04-12
        ------------------
        
        - Re-add title and description when viewing old versions in Plone 4.
          [davisagli]
        
        2.0b4 - 2010-03-04
        ------------------
        
        - Reverse order of diff listing on history view. Fixes
          http://dev.plone.org/plone/ticket/10119.
          [alecm]
        
        - Fix version display when history is non-existent. Fixes
          http://dev.plone.org/plone/ticket/9674.
          [alecm]
        
        2.0b3 - 2010-02-17
        ------------------
        
        - Updated templates to follow recent markup conventions.
          References http://dev.plone.org/old/plone/ticket/9981.
          [spliter]
        
        - Be more defensive in our importVarious step, to avoid issues while upgrading.
          [hannosch]
        
        - Workaround for http//dev.plone.org/plone/ticket/10120, "version_history_form"
          now renders "Preview is not available." instead of causing a traceback.
          [kleist]
        
        2.0b2 - 2009-12-27
        ------------------
        
        - Fixed test dependencies and removed unused test helper code.
          [hannosch]
        
        2.0b1 - 2009-12-02
        ------------------
        
        - Fix dependence on global_defines in diff.pt.
          https://dev.plone.org/plone/ticket/9804
          [alecm]
        
        2.0a1 - 2009-11-14
        ------------------
        
        - Fix ordering issues with versioned BTree folders.
          [alecm]
        
        - Make the Archetypes dependency a soft one.
          [alecm]
        
        - Only make a copy of a BLOB if it's changed since the last save.
          Otherwise, just reference the BLOB from the prior revision.
          [alecm]
        
        - Made the ZVCStorage store references directly in the shadow instead
          of simply passing them to ZVC.  This way real references can be used
          in the storage instead of copies, so that BLOB revisions can work.
          [alecm]
        
        - Add modifiers to handle AT blob fields from plone.app.blob.  One
          handler skips the blobs and the other copies them.
          [alecm]
        
        - Enable both inside and outside children modifiers by default for
          folder objects.  Using the INonStructuralFolder interface to determine
          which to use.
          [alecm]
        
        - Fixes for reference handling in plone.folder and other BTree based folder implementations.
          [alecm]
        
        - Added modifier that skips cloning of __parent__ pointers.
          [alecm]
        
        - Switched document_byline macro to plone.belowcontenttitle content provider.
          [hannosch]
        
        - Acquire plone_utils from context rather than assuming the putils global in
          templates.
          [erikrose]
        
        - Fixed tests which depended on specific uids for portal content.
          Added cmf_uid catalog index in install profile.
          [alecm]
        
        - Fixed missing i18n markup in versions_history_form.
          [hannosch]
        
        - No longer rely on base_properties.
          [hannosch]
        
        - Made some calls to portal_repository more defensive.
          [hannosch]
        
        - Added the z3c.autoinclude entry point so this package is automatically loaded
          on Plone 3.3 and above.
          [hannosch]
        
        - Use new import location for the package_home function.
          [hannosch]
        
        - Added the required profile bits for installing CMFUid.
          [hannosch]
        
        - Define dependency on Products.ZopeVersionControl.
          [hannosch]
        
        - Define dependency on CMFDiffTool (via template using portal_diff) and
          avoiding a test dependency on CMFDefault.
          [hannosch]
        
        - Define here_url in all templates and made get_macros not fail when
          encountering a browser view based template.
          [hannosch]
        
        - Cleaned up package metadata and code to remove the dependency on Plone.
          [hannosch]
        
        - Declare package dependencies and fixed deprecation warnings for use
          of Globals.
          [hannosch]
        
        - Catch WebDAVObjectInitializedEvent/WebDAVObjectEditedEvent and
          save versions as appropriate. This is part of the fix for
          http://dev.plone.org/plone/ticket/7338
          [sidnei] 
        
        - Fixed the name of the file : is has to be the FileName not the Id [tbenita]
        
        - Purged old Zope 2 Interface interfaces for Zope 2.12 compatibility.
          [elro]
        
        - Fixed a bug in the file_download_version that prevented successful download
          of anterior version of files if the filename contained spaces. Anyway, the
          filename param of Content-Disposition header SHOULD NEVER come without
          double-quotes.
          [drjnut]
        
        - Register GenericSetup steps via ZCML.
          [wichert]
        
        - Use the new archetypes.edit.afterfieldsets viewlet manager to add our
          field to the AT edit template. The customized edit_macros is now no longer
          needed.
          [wichert]
        
        1.2.7 - Unreleased
        ------------------
        
        - Fix error in history storage selector calculation.  http://dev.plone.org/plone/ticket/8967
          [alecm]
        
        - Make "Revert to this version" on the versions_history_form an input
          with HTTP POST, instead of a simple GET link.
          Fixes http://dev.plone.org/plone/ticket/6932
          [maurits]
        
        1.2.6 - December 2, 2009
        ------------------------
        
        - Check history permissions in the context of the versioned object not
          the repository tool.  See http://plone.org/products/cmfeditions/issues/55
          [alecm]
        
        - Fixed the html and javascript on the difference view so it works on
          more browsers.
          [vpretre, maurits]
        
        
        1.2.5 - November 5, 2009
        ------------------------
        
        - Show ndiff (natural diff) when neither inline diff nor html diff are
          available.
          [maurits]
        
        
        1.2.4 - July 4, 2009
        --------------------
        
        - Fixed missing i18n markup in versions_history_form.
          [hannosch]
        
        
        1.2.3 - July 4, 2009
        --------------------
        
        - Fix form action in @@history view.
          [vincentfretin]
        
        
        1.2.2 - June 11, 2009
        ---------------------
        
        - Fix XHTML markup for diff view.
          See ticket http://dev.plone.org/plone/ticket/9227
          [alecm]
        
        1.2.1 - June 8, 2009
        --------------------
        
        - Add getHistoryMetadata method to allow efficient history display
          without full object retrieval.  Based on patches by Darryl Dixon on
          CMFEditions zvc_enfold_fixfailures branch r59908:60078.
          [alecm]
        
        
        1.2 - May 16, 2009
        ------------------
        
        - Add missing PACKAGE_HOME in the init file according to tests
          [encolpe]
        
        - Add the encoding declaration (utf-8) in all python files
          [encolpe]
        
        - Internationalization of 7 strings in diff.pt (history view).
          [vincentfretin]
        
        - Fixed label_history_version msgid dynamic content in diff.pt (added i18n:name="version")
          [vincentfretin]
        
        
        1.2b1 (March 7, 2009)
        ---------------------
        
        - Register CMF skin layers via ZCML.
          [wichert]
        
        - Remove history action. Plone 3.3 has alternative implementations in the
          form of the content history viewlet so this should not be installed by
          default.
          [wichert]
        
        - Move import step registration to ZCML.
          [wichert]
        
        - Use the new archetypes.edit.afterfieldsets viewlet manager to add our
          field to the AT edit template. The customized edit_macros is now no longer
          needed.
          [wichert]
        
        - Some CMFEditions .py files use wrong MessageFactory (#8715)
          [encolpe]
        
        - Set some msgids to cmfeditions i18n domain in version_file_view.
          Renamed msgid label_existing_keywords by label_existing_categories in
          version_metadata_view.
          [vincentfretin]
        
        
        1.1.8 (October 6, 2008)
        -----------------------
        
        - Switch to egg-based distribution.
          [hannosch]
        
        - Fix on FileDownloadVersion : files retrieved didn't get their version name
          [tbenita]
        
        - Fix on FileDownloadVersion : files retrieved got corrupted at retrieval
          [drjnut]
        
        - Merge AT changes into replacement of 'edit_macros.pt'.
          See ticket http://dev.plone.org/plone/ticket/7999.
          [rsantos]
        
        
        1.1.7 (June 2, 2008)
        --------------------
        
        - Fix for issues with unicode version save comments.
          http://dev.plone.org/plone/ticket/7400
          [alecm]
        
        
        1.1.6 (March 26, 2008)
        ----------------------
        
        - Some i18n fixes to version_diff.pt. This closes
          http://dev.plone.org/plone/ticket/7862.
          [hannosch]
        
        - Merge AT changes into our copy of 'edit_macros.pt'.
          See: http://dev.plone.org/plone/ticket/6936
        
        
        1.1.5 (March 8, 2008)
        ---------------------
        
        - Fix bug in wrapper assignment for some modifiers.
          [encolpe, alecm]
        
        - Added metadata.xml file to the profile.
          [hannosch]
        
        
        1.1.4 (December 6, 2007)
        ------------------------
        
        - Add modifiers to avoid pickling extremely large files.  The
          AbortVersioningOfLargeFilesAndImages modifier is enabled by default
          for Files and Images. It will skip saving versions of objects when
          they contain a large file ('file' or 'image' field in Attribute or
          AnnotationStorage).  The SkipVersioningOfLargeFilesAndImages will
          simply not version the large file, but will version all other data.
          On retrieval it will put the file from the working copy in place.
          This is disabled by default, but can be enabled easily.
          Workaround for: http://dev.plone.org/plone/ticket/7223
          [alecm]
        
        
        1.1.3 (December 2, 2007)
        ------------------------
        
        - Make sure that we attempt to handle Inside Refs which have no
          portal_type, as well as retrieving revisions that once used the
          InsideRefsModifier but now use the OutsideRefsModifier.
          Related to: http://dev.plone.org/plone/ticket/7295
          [alecm]
        
        - Fix issue on diff form where empty entries were being shown for
          unchanged files.  Related to http://dev.plone.org/plone/ticket/7253
          [alecm]
        
        - Fix issues with purge policy as reported in
          http://dev.plone.org/plone/ticket/7300
          [alecm]
        
        - Handle ArchivistUnregisteredErrors during save.  This occurs when an
          object has been imported, or when the version information has been
          destroyed.  Fixes http://dev.plone.org/plone/ticket/7334.
          [alecm]
        
        - Reflect changes in base_edit.cpt asnd edit_macros.pt in r8683 of
          Archetypes: Skip the 'metadata' schema in base_edit, like we used to
          do it pre-1.5.  Also, do not render fieldset and legend elements
          when we're only displaying one fieldset, i.e. the 'default' one.
          [nouri]
        
        
        1.1.2 (October 5, 2007)
        -----------------------
        
        - Added bits of missing i18n markup to versions_history_form.pt. This closes
          http://dev.plone.org/plone/ticket/7065.
          [hannosch, naro]
        
        - Added CMFEditionsMessageFactory and used it to i18n-ize a statusmessages in
          revertversion.py. This closes http://dev.plone.org/plone/ticket/7066.
          [hannosch, naro]
        
        
        1.1.1 (September 10, 2007)
        --------------------------
        
        - Expose the extra_top, widgets and extra_bottom METAL hooks in edit_macros.
          [wichert]
        
        
        1.1-final (August 16, 2007)
        ---------------------------
        
        - Prevent future off by one errors in the ui by just starting our count from 0.
          [alecm]
        
        - Fix dumb acquisition issue in the default policy scripts.
          [alecm]
        
        - Removed overly aggressive logging from update_version_before_edit.cpy.
          [hannosch]
        
        
        1.1-rc1 (July 8, 2007)
        ----------------------
        
        - Make text more consistent (use revision instead of version throughout the ui)
        
        - Add checks in versioning policy scripts to ensure we don't get duplicate
          revisions.
        
        - Add controller overrides so that the correct actions happen on
          cancel and reference upload.
        
        - Add an event listener that removes the `version_id` attribute from
          copies.
        
        - Removed i18n folder. Translations are shipped in PloneTranslations. [hannosch]
        
        - Minor template corrections. [hannosch]
        
        
        1.1-beta4 (April 30, 2007)
        --------------------------
        
        - Updated permission mapping to account for new local roles (Editor/Contributor)
        
        
        1.1-beta3 (April 29, 2007)
        --------------------------
        
        - No longer register tools as utilities, since it broke the tests among
          other things.
        
        
        1.1-beta2 (March 26, 2007)
        --------------------------
        
        - Register tools as utilities
        
        
        1.1-beta1 (March 5, 2007)
        -------------------------
        
        - Make the AT autoversion policy save a version before the save for more
           intuitive behavior.
        
        - Fixed numerous ui glitches on the versions history form and started using
           statusmessages.
        
        - Do not install the versioning control panel anymore. You can enable versioning
          for a content type on the new types control panel now.
        
        ToDo
        
        - Finish exportimport handlers for portal_repository and portal_modifier thus
          making setuphandlers importVarious unnecessary again.
        
        - Add back special portal_historyidhandler / portal_uidhandler handling. If a
          portal_uidhandler tool is found during install, it should be renamed to
          portal_historyidhandler. The missing tools should be created as normal then.
        
        
        1.1-alpha2 (February 08, 2007)
        ------------------------------
        
        - Removed specialized document byline.
        
        - Switch to Plone control panel category
        
        
        1.1-alpha1 (November 22, 2006)
        ------------------------------
        
        Internal Changes
        
        - Two minor updates for CMF 2.1 compatibility. [hannosch]
        
        - Use a GenericSetup Extension profile for installation instead of an external
          method. [hannosch]
        
        - Cleaned up tests. As these are based on PloneTestCase and Plone 3.0 we don't
          have to set up anything special anymore. [hannosch, alecm]
        
        - Removed ActionProviderBase as a base class from all tools. In CMF 2.1 actions
          are usually only stored on the actions tool. [hannosch]
        
        - Updated dependency information for Plone 3.0 inclusion. [hannosch]
        
        
        1.0 (SVN)
        ---------
        
        Bugs fixed
        
        - Fixed OMInsideChildrensModifier InitializeClass. [encolpe]
        
        Internal Changes
        
        - Replaced usage of zLOG with Python's logging framework. [hannosch]
        
        - Removed lots of unused import statements, found by pyflakes. [hannosch]
        
        - Removed BBB code for old transaction handling. [hannosch]
        
        - Removed some BBB code for ZClasses and CMF 1.4. [hannosch]
        
        CMFEditions 1.0rc1 (unreleased)
        -------------------------------
        
        ToDo
        
        - migration from CMFEditions 1.0alpha3 doesn't work correctly
        - some translations are not yet updated: contact translators (for changes see 
          below. Affected translations: fr, da, pl)
        - Fix outstanding failing tests
        - Some complex integration test with deleted version. (purge support)
        - allow adding test hierarchy only if in debug mode
        - allow migration in debug mode only
        - fix issue #28
        - fix issue #25
        - fix issue #19
        - fix issue #17
        - fix issue #22
        
        1.0beta1 (2006-06-24)
        ---------------------
        
        Bugs fixed
        
        - Fixed previewing (retrieving) files and images. [gregweb]
        
        - Security Policy was for ``manage_setPolicies`` but the method name 
          was ``manage_setTypePolicies``. Corrected. [gregweb]
        
        - The storage now stores ZVC's ``__vc_info__`` for every version 
          avoiding wrong information is attached to a working copy when 
          previewing a version. Fix for ToDo.txt item #48. [gregweb]
        
        - Replaced all occurences of ``rollback`` with ``revert``. Brought into
          sync internal names with UI. Rollback may suggest a transaction 
          rollback which is something different. Including i18n label
          ``label_rollback`` which is now ``label_revert``. Added backwards 
          compatibility code for configuration. Translations not updated.
          [gregweb]
        
        - Minor refactorings of the version history view. Notably replaced
          ``(show below)`` by ``preview`` without jumping to the preview target
          on the page by default. Instead the link name of the previewed version
          changes to ``jump down``. [gregweb]
        
        - The storage is now more immune against non int selectors. [gregweb]
        
        
        Features Added
        
        - The approximate size of a version is now recorded also at save time
          (and calculated at storage migartion).
          [gregweb]
        
        - Added size information to storage statistics ZMI view [gregweb]
        
        - Added German translations [gregweb]
        
        - Added Polish translations provided by Piotr Furman [Piotr Furman, gregweb]
        
        - ``RetainWorkflowStateAndHistory`` now adds the ``review_state`` to the
          ``sys_metadata`` at save time because at retreive time the workflow tool 
          picks the working copies state. I didn't find any other way to do it 
          without digging into workflows internals (which would have been a bad 
          idea anyway). Had to extend the ``IModifier.ISaveRetrieveModifier``
          interface to allow a modifier enhance ``sys_metadata`` at save time. 
          [gregweb]
          
        - Added purge support [gregweb]:
        
          - Enhanced storage API with a ``purge`` method that inevitabely
            removes a version from the history. See added ``IPurgeSupport``
            and ``IPurgePolicy`` interfaces.
          - Purging raises an exception if no purge policy is installed. This
            will avoid a lot of future tracker items caused by people having
            removed the purge policy but nevertheless providing purge support 
            to users. The reason is that the archivist and repo layer can't 
            handle yet the empty placeholder object beeing returned by the 
            storage for the purged version. This rule may be relaxed in future 
            versions if the archivist and repo layer support handling of those 
            empty placeholder objects.
          - The UI doesn't expose manual purge functionality. Through the ZMI a
            number n may be configured representing the maximum number of
            version per content item that have to be preserved. Older ones are
            automatically purged from the storage at save time.
          - There is a new purge permission that may be used to restrict purging
            to special roles if necessary (applicable to manual purging only).
          - On the repo layer (``portal_repository``) retrieving an object or 
            iterating over the history always returns a valid (unpurged) 
            version. The returned object may be a substitute. Two numbering 
            schematas exist. Numbering counting purged versions and not 
            counting purged versions (passing True or False to ``countPurged``).
            The default numbering schema is ``countPurged=True``. The UI 
            history onyl shows unpurged versions (``countPurged=False``).
          - If the storage is asked to retreive a removed version it may be
            instructed to return a substitute for the removed version. The
            substitution policy itself is implemented in the new purge policy
            tool. This strategy allows to keep most purge implementation 
            details out of the upper layers (archivist, modifiers, repository).
          - The new purge policy tool may be instructed to only keep n versions 
            of a content item. Thus at save time the oldest version is purged 
            if the save operation would result in more than n version reside in 
            the storage.
          - The new purge policy tool substitutes a removed version with the
            next older version. If no other version is available the next 
            newer is used as substitute. If none is available ... well this 
            isn't yet tested :-)
          - The archivist and storage may be asked to also retreive the empty
            placeholder of a purged version. This functionality is yet exposed 
            to the repo layer. This may change in a future release.
          - Added ``isValid`` method on the vdata object that allows to ask if 
            the retrieved object it is valid or not (empty placeholder object 
            or a real version).
            
        - At save time a version aware reference to the parent node is saved
          also. Without it would be very ineffective or even impossible to 
          find out the parents which potentially would prevent adding usefull
          features like retrieving the a whole site from one object in the 
          tree. [gregweb]
        
        - The histories default order has changed: It now returns the newest 
          version as first item and the oldest as last item. The old behaviour
          is still available by passing ``oldestFirst=True``. [gregweb]
        
        - Inserted the ``oldestFirst`` parameter before the already existing
          ``preserve`` parameter. This will cause changes of 3rd party products
          that are using ``preserve`` (None know at the moment, it's better to
          change now than later). [gregweb]
        
        - Added two new i18n labels: ``label_preview_version_below``, 
          ``label_preview_version`` (no translations yet) [gregweb]
        
        - Renamed i18n label: ``label_show_below`` to ``label_preview_version_link``
          (updated labels in po-files but not the translations) [gregweb]
        
        
        Internal Changes
        
        - Now save all metadata also in shadow storage. But currently on retrieve 
          the metadata is still feteched from the ZVC storage. [gregweb]
        
        - Added migration code for 1.0alpha3 --> 1.0beta1 storage migrations
          [gregweb]
        
        - Adding purge support caused heavy refactoring the version storage.
          ZVC is still used to store the contents history but now additional 
          data is stored in a parallel shadow storage. The layout of the data
          in the ZVC didn't change, only ZVC and purge related metadata has 
          been added to the parallel shadow storage. [gregweb]
        
        - Garbage collected a lot of code that was commented out, outdated 
          triple-X's and items in ``ToDo.txt``. [gregweb]
        
        - The storage tests now tests ZVCSTorageTool only once and additionally
          tests the dummy memory storage. This was the intended behaviour but
          a bug prevented running the tests with the dummy storage and instead
          run the tests with ZVCStorageToll twice. [gregweb]
        
        
        1.0alpha4 (2006-06-24)
        ----------------------
        
        Bugs fixed
        
        - fixed bug with AT references causing ref catalog having been inconsistent
          [sunew]
        
        
        Features added
        
        - Comment is now taken from request if any. [sunew]
        
        - Added storage statistics ZMI view. [gregweb]
        
        - Added functionality to create a test hierarchy. [gregweb]
        
        
        1.0alpha3 (2006-06-03)
        ----------------------
        
        Bugs fixed
        
        - Fixed tracker issue #15 [alecm, gregweb]
        
        - When previewing a version the expandable history link is removed as this 
          doesn't make sense at all and caused double fetching of history items.
          [gregweb]
        
        - Use the default view of the retrieved object, as it may be different from 
          that of the current object. [alecm]
        
        - The expandable version link is only shown for users having the permission 
          to view the history. [rafrombrc]
        
        - Added RetainATRefs modifier [vds]
        
        - Fixed broken ``isUpToDate`` [gregweb]
        
        - ``version_id`` wasn't correctly set at the working copy at save time. 
          Because of this it may happen that the wrong version info was saved 
          with the version aware reference. The version_id is now set at the end 
          of the save operation. [alecm, gregweb]
        
        - Handle usecase where an inside reference is moved outside its container.
          Still need to handle case where it has been replaced by another object 
          with the same id.  [alecm]
          
        - Changed API for Archivist methods and the dereference utility method so 
          that they now accept an optional history_id, rather than implicitly 
          allowing the 'obj' parameter to be a history_id. As side effect this
          will help in supporting multi location checkout in the future. 
          [alecm, gregweb]
        
        - Fixed various UI issues. [rlemmi, vds, alecm]
        
        - Fixed SF issue #1376836. [alecm]
        
        - restored at's extra_buttons slot (some others slots are still missing 
          because of this template override) [syt]
        
        - Totally refactored recursive retrieve of an ancient version of an object.
          Fixed a lot of folderish bugs with this refactoring. [gregweb]
        
        - Corrected a hairy acquisition bug that caused wrong security evaluations
          (ArchivistTool.py). Acquisition is a monster feature! [gregweb]
        
        - The storage now returns obj.modified() instead of 
          obj.getModificationDate() because it's more fine graned. [gregweb]
        
        - Added ReferenceFactoriesTool.py which in essence knows how to 
          instatiate a reference. The current implementation is inflexible and
          knows only how to instantiate object into an ObjectManager. This
          is the first step in preparation for AT reference handling. [gregweb]
        
        - Fixed tracker issue #16 RuntimeError: maximum recursion depth exceeded.
          I (gregweb) suspect it got fixed by: [alecm]
        
        - Fixed identical tracker issues #5, #6, #7, #8. I (gregweb) suspect it got 
          fixed by: [alecm]
        
        - Added modifier to copy permissions from working copy onto retrieved 
          versions, otherwise retaining workflow can have some very strange 
          consequences. [alecm]
        
        - Fixed a number of bugs involving handling of adding and deleting subobjects
          of versioned folders.
          [alecm]
        
        - Fixed a permissions bug which made the versions_history_form inaccessible if
          any of the versions were saved while private (or otherwise had
          'Access contents information' disabled).
          [alecm]
        
        - Made quickinstalled product reinstall/uninstall work without issue.  Fixed
          unit tests for Plone 2.1.  Use mutators in templates and tests where
          applicable rather than direct attribute access. Was Issue #9, #10 and #11.
          Thanks to Andrew Lewis for the patches and reports. [Andrew Lewis, alecm]
        
        - Corrected bugs in ``RetainWorkflowStateAndHistory`` modifier and the
          modifier registry avoiding the review state and the workflow history 
          from beeing retained on retrieve and revert. 
        
        
        Features added
        
        - Added danish translation. [stonor]
        
        - Retrieving an object just for preview (without replacing the working copy) 
          caused a lot of headaches and got more and more complex und ununderstandable.
          Everything got much simpler by just using a savepoint/abort pair at the right 
          place while retrieving. [alecm]
        
        - I18N tuned (diff-legend untested), french added
          [Gpgi, gotcha]
        
        - Added more tests to improve coverage. [azy, vds, alecm]
        
        - Added support for ATCT (Archetypes Content Types). [azy]
        
        - Added ZMI interface for modifiers. [rlemmi]
        
        - It's now possible to save a new version in the edit view. As soon as a 
          version sahll be saved a comment field is inserted to add a comment.
          [rlemmi]
        
        - Added expandable version history to document_byline. [rlemmi]
        
        - Made the ModifierRegistryTool make use of any preserve dict passed back to
          it by afterRetrieveModifiers.
          [alecm]
        
        - Added optional CMFDiffTool support for generating diffs between object
          versions.  For this to work you need to setup the diffable fields on each
          type in portal_diff.  In the 'alecm-at-schema-diffs' branch of CMFDiffTool
          there is a diff type that can be applied to any AT object which will
          automatically setup diffs for all fields in the schema (when using this
          any value can be entered for the field in portal_diff).
          [alecm]
        
        - Added a versioning policy (at_edit_autoversion) which automatically creates
          new versions on edit for AT types which are configured to support the policy
          in the configlet.  This is implemented using a simple macro override on
          AT's edit_macros, and a new entry in the AT edit form controller chain.
          [alecm]
        
        - Added new interface IContentTypeVersionPolicySupport and implemented it in
          portal_repository.  It allows products to register versioning policies
          (classes which implement IVersionPolicy), and to associate those policies
          with specific portal types.  IVersionPolicy objects may define methods
          (setupPolicyHook, removePolicyHook, enablePolicyOnTypeHook,
          disablePolicyOnTypeHook) which can be used to install/uninstall policy
          specific behavior in the portal, on adding/removing the policy, or enabling/
          disabling the policy on a specific type.
          [alecm]
        
        
        1.0alpha2 (around June 2005)
        ----------------------------
        
        no changes recorded
        
        
Keywords: Versioning Plone
Platform: UNKNOWN
Classifier: Framework :: Plone
Classifier: Framework :: Zope2
