Revision history for XML::Comma modules:
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1.00 2002/01/28 03:46:15
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- boolean macro bugfix
- new features in HTTP_Transfer
- faster $index->count() SQL
- added iterator_select_returnval() method to Index Iterator class
- new boolean- (and grouping-) capable collection and sort
specs. implemented using Parse::RecDescent -- core code now
requires Parse::RecDescent to be available
- added validate() method to Element, NestedElement and BlobElement
classes. validate_structure() is now DEPRECATED. storage write
methods all call validate() and refuse to store Docs that fail to
pass all validity checks. it's now possible to define
validate_hooks for blob elements.
-------------------------
1.01 2002/04/10 12:05:32
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- Changed Comma_Standard_Image.def to use hex (rather than b64)
digests, to eliminate the +/= characters that could cause problems
in urls.
- Added doc_id() method to Storage::Iterator. Returns the doc_id of
the currently-pointed-at doc.
- Improved $index->rebuild() code. Fixed bug in stop_rebuild_hook
handler, added parallelization ('workers=>n' arg). Added sig
handler to catch Ctrl-C and try to clean up, so as to not leave db
tables in a "marked" state.
- Added Methodable::method_names() method so that Def and Index
objects can return the names of the methods they define.
- Added $def->index_names() and $def->store_names() methods.
- Fixed Index::Iterator bug found by TIB that was triggered by
trying to access columns from an empty iterator.
- Rewrote Index plurals code. Added a new type of storage
('bcollection table'), and integrated 'sort' and 'collection'
types together. Rewrote SQL code generation and all t/indexing.t
tests. Added more boolean/notting and partial match capabilities
into the new collections framework.
- Added some cleanup code to Index->DESTROY to resolve circular
references that were causing occasional problems with global
destruction.
-------------------------
1.08 2002/07/26 12:40:45
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- Bug fixes or code cleanup in: method_names, _make_collection_spec,
Index->DESTROY, Element->method() and friends, boolean macro,
various tests, date_8 (code contributed by Chuck), macro section
in Bootstrap Def, bcollection tables, Index/Clean circular
references, Doc->store(), set(), decl_pos in various Location
modules, FileUtile make_directory permissions setting.
- DEPRECATED HTTP_Upload. The plan is to support HTTP_Transfer,
which is a cleaner architecture, instead. Be that as it may, fixed
some headers in HTTP_Upload_mod_perl module. Tests for
HTTP_Transfer are in t/transfer.manual.
- New date_8 macro methods "today" and "diff_today"
- Makefile.PL now respects existing Comma.pm installs -- prints out
message saying that it's not overwriting your Comma.pm if that's
the case. Also, moved VERSION into Bootstrap.pm, so that upgrades
show the right version even if Comma.pm doesn't change.
- Changed enum_choices() in enum macro to guarantee a specific
return order.
- Added integer macro.
- DEPRECATED the XML::Comma->lock_singlet() interface. It's close to
impossible to use this as intended, across differing database
architectures. Better to rip it out (advisorily, anyway, by
deprecating) and replace it with something better in the
future. In the meantime, added a MySQL-specific "disposable locks"
module in XML::Comma::Pkg::MySQL_Simple_Lock.
- Beefed up SQL::DBH_User _connect() routine (which is inherited by
all core code that needs db access). Sherrard wrote code to retry
and log failed attempts.
- TIB contributed new Location module SequentialCheck_file
- Fixed Blob class such that element_delete() deletes the backing
file.
- Big fixes to doc-level locking code. Old code was not
multi-machine safe. New code is, as long as the two (or more)
machines share a single database server. It is possible (though
unlikely -- requires bad perl interpreter exit) for a lock record
to hang around after process goes away. There is no probable fix
for this, but some utility scripts to print out info about comma
locks are on the todo list.
- Added a third passed argument to pre_ and post_store_hook code: a
hashref pointing to the original store() args. This allows hooks
to do arbritrarily complex iff'ing based on user-level args (which
are unconstrained, so this is a very open-ended mechanism).
- NON-BACKWARDS-COMPATIBLE CHANGE: Added a check for defined-ness
for the element names passed into $el->elements(). This might
break sloppy (or buggy) old code, but seemed like very much the
right thing to do. There's no good reason to be able to pass
non-existent element names to the elements() method.
- NON-BACKWARDS-COMPATIBLE CHANGE: Changed the third argument passed
to set_hook and set_from_file_hook to be a hash_ref, rather than
passing the whole hash. This might break some existing code
(although I don't think much code uses this feature, yet), but
it's the Right Thing (tm).
- NON-BACKWARDS-COMPATIBLE CHANGE: Changed the
Comma::Util::XML_basic_escape() method. This method used to try to
identify '&' characters that were part of an entity tag, and NOT
escape them. Because the logic was not symmetrical with
XML_basic_unescape(), confusing results resulted. New escape
method escapes all occurrences of '<', '>', and '&' in a string --
making it entirely symmetrical with the unescape code. Two new
methods were added, in case folks need the old functionality:
XML_smart_escape() and XML_bare_amp_escape().
- Added French Textsearch Preprocessor. Algorithm based on snowball
code from http://snowball.tartarus.org/french/stemmer.html
- Added 'erase_where_clause' capabilities to collection table
cleans.
- Error reporting on errors passed through DBI is much improved. All
do() statements in SQL/Base.pm where changed to prepare(), etc.
- Partial rewrite of Preprocessor code structure. Most importantly,
maximum word length is now tied to a global defined in the
Preprocessor abstract/template class, and the multi-preproc
switching code accomodates an "attribute" argument so the Iterator
can stem keyword arguments correctly. UPGRADE INFORMATION: if you
are upgrading from an earlier version of Comma, it is best to drop
all indexes that include <textsearch> fields, and rebuild them
after the upgrade.
-------------------------
1.09 2002/11/27 12:36:38
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- Upgraded Pg-specific code for Postgres 7.3. Comma now REQUIRES Pg
7.3 -- which is fine, because Comma made poor assumptions pre-7.3
that didn't work so good. QUESTION: why is postgres so chatty, and
what can be done to keep it from printing out warnings when
indexes are created, and to stop errors that are caught with eval
from going to the log.
-------------------------
1.10 2002/12/06
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- Fixed bug in textsearch code that prevented processes that hadn't
already "indexed" to "retrieve" based on textsearch stuff
- Added 'digits' argument to Sequential_file and
Sequential_dir. Modified FileUtil::current_sequential_id to use
the lockfile rather than listing the files in the directory (which
fixes the odd behavior Sherrard was complaining about that arises
if you drop unexpected stuff into directories). New dependency:
Math::BaseCalc.
- Made some changes to the core to support the new Index_Only
storage location module. This is the first location module that is
truly decoupled from the filesystem. There are some performance
and feature improvements still to be made, but it seems quite
usable.
- Added new <escapes> syntax to allow Def-defined escape/unescape
behavior
- Moved Configuration stuff into Comma/Configuration.pm -- a
separate file. This makes more sense from an architectural point
of view, and could make it easier to run more than one Comma
instance on a given machine, in the future.
- Added a "sys_directory" configuration variable; changed the
SimpleC parser to do its build in the sys directory. Changed
Comma.pm to create the comma_root, document_root, sys_directory
and tmp_directory dirs on startup, if they don't already exist.
- Rewrote BlobElement framework so that BlobElements act like other
elements: they are not written to permanent storage until a
store() is called, and there is no extra store() fanciness
required to make sure that the pointers are in sync. Under the
covers, blob elements are saved in files under the tmp_directory
until the doc they belong to is store()d.
- The content of an <erase_where_clause> now gets eval'ed before
being passed to the database *if* it begins with a '{'
character. This is useful for doing perl-ish calculations before
having to drop down into SQL.
- NON-BACKWARDS-COMPATIBLE CHANGE -- XML::Comma::Configuration.pm
now uses a much simpler syntax and a future-flexible approach,
inheriting from XML::Comma::Pkg::ModuleConfiguration.pm
- Added #include foo and #include {foo} <args list> to parsers
- Added PAR resolving functionality to DefManager
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1.17 2003/03/04
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- Fixed missing file in MANIFEST
- ParResolver is working; added Comma/Pkg/test.par
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1.18 2003/03/18
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- Fixed Sequential_dir and Sequential_file to pad with the 0th digit
rather than with '0'
- Added new bin/comma-load-and-store-doc.pl utility
- Improved some SimpleC error messages
- Removed about a dozen stopwords from the english stopwords list
- Added Storage::Util method to docs
- Fixed a bug in escape/unescape code that was producing strange character
sequences
- Added experimental "collection field" features
- Added a pnotes functionality to elements -- a hash-keyed store for
any data that the element object would like to salt away for
itself. not shared in a class-like manner as def_pnotes
is. Changed the generic Comma.pm level def_pnotes lookup method to
be called def_pnotes rather than pnotes, to avoid confusion now
that both instance- and class-like pnotes calls exist.
- Made Proc::ProcessTable optional. Still need to write docs (and
perhaps a Makefile.PL notice) saying that its useful to have.
-------------------------
1.19 2003/05/22
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- Added doc_id to error messages in basic doc methods
- Made the internal calls to def-level escape_code and unescape_code
subs pass any set() or get() args, so that escape and unescape
routines can vary depending on application code arguments
- Fixed a read_only bug that made newly-created elements of
read-only docs NOT read-only
- Fixed textsearch bug wherein textsearch elements with the same
name in different indexes/defs became mixed up
- Added XML::Comma::Def-><name> shortcut method
- Added Indexing iterator method iterator_dispatch, decoupling the autoload
from the the method/element fetch.
- Moved pnotes handling up an (OO) layer into AbstractElement, so
all parts of a doc or def can now have their own pnotes objects
- Proc::ProcessTable is now optional, used if available to try and
determine whether a (local) process that holds doc locks is still
alive.
- Comma/Pkg/Mason/ParResolver and ParComponent added to core
distribution.
- Removed some stopwords from Comma/Pkg/Mason/Preprocessor_En that
never should have been there in the first place (like "internet").
- Added STDERR output to error notices from $index->rebuild()
- New utility bin/comma-load-and-index-doc.pl
- New Comma/Storage/Output module (that, confusingly, only does
input): MailMessageReader
- Made errors thrown during parsing conform to Log->err style, and
added $extra_text field to Error constructor. Now errors thrown
during def method parsing report the method name and have a more
specific heirarchy field.
- Removed date_8.macro's Date::Calc dependency (rewriting the
validate_hook in the process) and added a number of tests (Dug).
- Changed default Comma/Configuration file to use system directories
relative to the current directory under TEST/ for all test
scripts. Tried and failed to add a SQLite database driver so that
we can install (for example from CPAN) even on a vanilla system
and hae everything work without needing to configure an
RDBMS. SQLite presents various issues that will be difficult to
resolve without a large amount of rewritage.
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1.20 2003/10/13
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