1 #
2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
3 # This module is free software, and you may redistribute it and/or modify
4 # under the same terms as Python, so long as this copyright message and
5 # disclaimer are retained in their original form.
6 #
7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
10 # POSSIBILITY OF SUCH DAMAGE.
11 #
12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
17 #
18 # $Id: hyperdb.py,v 1.72 2002-07-09 21:53:38 gmcm Exp $
20 __doc__ = """
21 Hyperdatabase implementation, especially field types.
22 """
24 # standard python modules
25 import sys, re, string, weakref, os, time
27 # roundup modules
28 import date, password
30 # configure up the DEBUG and TRACE captures
31 class Sink:
32 def write(self, content):
33 pass
34 DEBUG = os.environ.get('HYPERDBDEBUG', '')
35 if DEBUG and __debug__:
36 if DEBUG == 'stdout':
37 DEBUG = sys.stdout
38 else:
39 DEBUG = open(DEBUG, 'a')
40 else:
41 DEBUG = Sink()
42 TRACE = os.environ.get('HYPERDBTRACE', '')
43 if TRACE and __debug__:
44 if TRACE == 'stdout':
45 TRACE = sys.stdout
46 else:
47 TRACE = open(TRACE, 'w')
48 else:
49 TRACE = Sink()
50 def traceMark():
51 print >>TRACE, '**MARK', time.ctime()
52 del Sink
54 #
55 # Types
56 #
57 class String:
58 """An object designating a String property."""
59 def __init__(self, indexme='no'):
60 self.indexme = indexme == 'yes'
61 def __repr__(self):
62 ' more useful for dumps '
63 return '<%s>'%self.__class__
65 class Password:
66 """An object designating a Password property."""
67 def __repr__(self):
68 ' more useful for dumps '
69 return '<%s>'%self.__class__
71 class Date:
72 """An object designating a Date property."""
73 def __repr__(self):
74 ' more useful for dumps '
75 return '<%s>'%self.__class__
77 class Interval:
78 """An object designating an Interval property."""
79 def __repr__(self):
80 ' more useful for dumps '
81 return '<%s>'%self.__class__
83 class Link:
84 """An object designating a Link property that links to a
85 node in a specified class."""
86 def __init__(self, classname, do_journal='no'):
87 ''' Default is to not journal link and unlink events
88 '''
89 self.classname = classname
90 self.do_journal = do_journal == 'yes'
91 def __repr__(self):
92 ' more useful for dumps '
93 return '<%s to "%s">'%(self.__class__, self.classname)
95 class Multilink:
96 """An object designating a Multilink property that links
97 to nodes in a specified class.
99 "classname" indicates the class to link to
101 "do_journal" indicates whether the linked-to nodes should have
102 'link' and 'unlink' events placed in their journal
103 """
104 def __init__(self, classname, do_journal='no'):
105 ''' Default is to not journal link and unlink events
106 '''
107 self.classname = classname
108 self.do_journal = do_journal == 'yes'
109 def __repr__(self):
110 ' more useful for dumps '
111 return '<%s to "%s">'%(self.__class__, self.classname)
113 class DatabaseError(ValueError):
114 '''Error to be raised when there is some problem in the database code
115 '''
116 pass
119 #
120 # the base Database class
121 #
122 class Database:
123 '''A database for storing records containing flexible data types.
125 This class defines a hyperdatabase storage layer, which the Classes use to
126 store their data.
129 Transactions
130 ------------
131 The Database should support transactions through the commit() and
132 rollback() methods. All other Database methods should be transaction-aware,
133 using data from the current transaction before looking up the database.
135 An implementation must provide an override for the get() method so that the
136 in-database value is returned in preference to the in-transaction value.
137 This is necessary to determine if any values have changed during a
138 transaction.
140 '''
142 # flag to set on retired entries
143 RETIRED_FLAG = '__hyperdb_retired'
145 # XXX deviates from spec: storagelocator is obtained from the config
146 def __init__(self, config, journaltag=None):
147 """Open a hyperdatabase given a specifier to some storage.
149 The 'storagelocator' is obtained from config.DATABASE.
150 The meaning of 'storagelocator' depends on the particular
151 implementation of the hyperdatabase. It could be a file name,
152 a directory path, a socket descriptor for a connection to a
153 database over the network, etc.
155 The 'journaltag' is a token that will be attached to the journal
156 entries for any edits done on the database. If 'journaltag' is
157 None, the database is opened in read-only mode: the Class.create(),
158 Class.set(), and Class.retire() methods are disabled.
159 """
160 raise NotImplementedError
162 def post_init(self):
163 """Called once the schema initialisation has finished."""
164 raise NotImplementedError
166 def __getattr__(self, classname):
167 """A convenient way of calling self.getclass(classname)."""
168 raise NotImplementedError
170 def addclass(self, cl):
171 '''Add a Class to the hyperdatabase.
172 '''
173 raise NotImplementedError
175 def getclasses(self):
176 """Return a list of the names of all existing classes."""
177 raise NotImplementedError
179 def getclass(self, classname):
180 """Get the Class object representing a particular class.
182 If 'classname' is not a valid class name, a KeyError is raised.
183 """
184 raise NotImplementedError
186 def clear(self):
187 '''Delete all database contents.
188 '''
189 raise NotImplementedError
191 def getclassdb(self, classname, mode='r'):
192 '''Obtain a connection to the class db that will be used for
193 multiple actions.
194 '''
195 raise NotImplementedError
197 def addnode(self, classname, nodeid, node):
198 '''Add the specified node to its class's db.
199 '''
200 raise NotImplementedError
202 def serialise(self, classname, node):
203 '''Copy the node contents, converting non-marshallable data into
204 marshallable data.
205 '''
206 if __debug__:
207 print >>DEBUG, 'serialise', classname, node
208 properties = self.getclass(classname).getprops()
209 d = {}
210 for k, v in node.items():
211 # if the property doesn't exist, or is the "retired" flag then
212 # it won't be in the properties dict
213 if not properties.has_key(k):
214 d[k] = v
215 continue
217 # get the property spec
218 prop = properties[k]
220 if isinstance(prop, Password):
221 d[k] = str(v)
222 elif isinstance(prop, Date) and v is not None:
223 d[k] = v.get_tuple()
224 elif isinstance(prop, Interval) and v is not None:
225 d[k] = v.get_tuple()
226 else:
227 d[k] = v
228 return d
230 def setnode(self, classname, nodeid, node):
231 '''Change the specified node.
232 '''
233 raise NotImplementedError
235 def unserialise(self, classname, node):
236 '''Decode the marshalled node data
237 '''
238 if __debug__:
239 print >>DEBUG, 'unserialise', classname, node
240 properties = self.getclass(classname).getprops()
241 d = {}
242 for k, v in node.items():
243 # if the property doesn't exist, or is the "retired" flag then
244 # it won't be in the properties dict
245 if not properties.has_key(k):
246 d[k] = v
247 continue
249 # get the property spec
250 prop = properties[k]
252 if isinstance(prop, Date) and v is not None:
253 d[k] = date.Date(v)
254 elif isinstance(prop, Interval) and v is not None:
255 d[k] = date.Interval(v)
256 elif isinstance(prop, Password):
257 p = password.Password()
258 p.unpack(v)
259 d[k] = p
260 else:
261 d[k] = v
262 return d
264 def getnode(self, classname, nodeid, db=None, cache=1):
265 '''Get a node from the database.
266 '''
267 raise NotImplementedError
269 def hasnode(self, classname, nodeid, db=None):
270 '''Determine if the database has a given node.
271 '''
272 raise NotImplementedError
274 def countnodes(self, classname, db=None):
275 '''Count the number of nodes that exist for a particular Class.
276 '''
277 raise NotImplementedError
279 def getnodeids(self, classname, db=None):
280 '''Retrieve all the ids of the nodes for a particular Class.
281 '''
282 raise NotImplementedError
284 def storefile(self, classname, nodeid, property, content):
285 '''Store the content of the file in the database.
287 The property may be None, in which case the filename does not
288 indicate which property is being saved.
289 '''
290 raise NotImplementedError
292 def getfile(self, classname, nodeid, property):
293 '''Store the content of the file in the database.
294 '''
295 raise NotImplementedError
297 def addjournal(self, classname, nodeid, action, params):
298 ''' Journal the Action
299 'action' may be:
301 'create' or 'set' -- 'params' is a dictionary of property values
302 'link' or 'unlink' -- 'params' is (classname, nodeid, propname)
303 'retire' -- 'params' is None
304 '''
305 raise NotImplementedError
307 def getjournal(self, classname, nodeid):
308 ''' get the journal for id
309 '''
310 raise NotImplementedError
312 def pack(self, pack_before):
313 ''' pack the database
314 '''
315 raise NotImplementedError
317 def commit(self):
318 ''' Commit the current transactions.
320 Save all data changed since the database was opened or since the
321 last commit() or rollback().
322 '''
323 raise NotImplementedError
325 def rollback(self):
326 ''' Reverse all actions from the current transaction.
328 Undo all the changes made since the database was opened or the last
329 commit() or rollback() was performed.
330 '''
331 raise NotImplementedError
333 _marker = []
334 #
335 # The base Class class
336 #
337 class Class:
338 """The handle to a particular class of nodes in a hyperdatabase."""
340 def __init__(self, db, classname, **properties):
341 """Create a new class with a given name and property specification.
343 'classname' must not collide with the name of an existing class,
344 or a ValueError is raised. The keyword arguments in 'properties'
345 must map names to property objects, or a TypeError is raised.
346 """
347 self.classname = classname
348 self.properties = properties
349 self.db = weakref.proxy(db) # use a weak ref to avoid circularity
350 self.key = ''
352 # do the db-related init stuff
353 db.addclass(self)
355 def __repr__(self):
356 '''Slightly more useful representation
357 '''
358 return '<hypderdb.Class "%s">'%self.classname
360 # Editing nodes:
362 def create(self, **propvalues):
363 """Create a new node of this class and return its id.
365 The keyword arguments in 'propvalues' map property names to values.
367 The values of arguments must be acceptable for the types of their
368 corresponding properties or a TypeError is raised.
370 If this class has a key property, it must be present and its value
371 must not collide with other key strings or a ValueError is raised.
373 Any other properties on this class that are missing from the
374 'propvalues' dictionary are set to None.
376 If an id in a link or multilink property does not refer to a valid
377 node, an IndexError is raised.
378 """
379 if propvalues.has_key('id'):
380 raise KeyError, '"id" is reserved'
382 if self.db.journaltag is None:
383 raise DatabaseError, 'Database open read-only'
385 # new node's id
386 newid = self.db.newid(self.classname)
388 # validate propvalues
389 num_re = re.compile('^\d+$')
390 for key, value in propvalues.items():
391 if key == self.key:
392 try:
393 self.lookup(value)
394 except KeyError:
395 pass
396 else:
397 raise ValueError, 'node with key "%s" exists'%value
399 # try to handle this property
400 try:
401 prop = self.properties[key]
402 except KeyError:
403 raise KeyError, '"%s" has no property "%s"'%(self.classname,
404 key)
406 if isinstance(prop, Link):
407 if type(value) != type(''):
408 raise ValueError, 'link value must be String'
409 link_class = self.properties[key].classname
410 # if it isn't a number, it's a key
411 if not num_re.match(value):
412 try:
413 value = self.db.classes[link_class].lookup(value)
414 except (TypeError, KeyError):
415 raise IndexError, 'new property "%s": %s not a %s'%(
416 key, value, link_class)
417 elif not self.db.hasnode(link_class, value):
418 raise IndexError, '%s has no node %s'%(link_class, value)
420 # save off the value
421 propvalues[key] = value
423 # register the link with the newly linked node
424 if self.properties[key].do_journal:
425 self.db.addjournal(link_class, value, 'link',
426 (self.classname, newid, key))
428 elif isinstance(prop, Multilink):
429 if type(value) != type([]):
430 raise TypeError, 'new property "%s" not a list of ids'%key
432 # clean up and validate the list of links
433 link_class = self.properties[key].classname
434 l = []
435 for entry in value:
436 if type(entry) != type(''):
437 raise ValueError, '"%s" link value (%s) must be String' % (key, value)
438 # if it isn't a number, it's a key
439 if not num_re.match(entry):
440 try:
441 entry = self.db.classes[link_class].lookup(entry)
442 except (TypeError, KeyError):
443 raise IndexError, 'new property "%s": %s not a %s'%(
444 key, entry, self.properties[key].classname)
445 l.append(entry)
446 value = l
447 propvalues[key] = value
449 # handle additions
450 for id in value:
451 if not self.db.hasnode(link_class, id):
452 raise IndexError, '%s has no node %s'%(link_class, id)
453 # register the link with the newly linked node
454 if self.properties[key].do_journal:
455 self.db.addjournal(link_class, id, 'link',
456 (self.classname, newid, key))
458 elif isinstance(prop, String):
459 if type(value) != type(''):
460 raise TypeError, 'new property "%s" not a string'%key
462 elif isinstance(prop, Password):
463 if not isinstance(value, password.Password):
464 raise TypeError, 'new property "%s" not a Password'%key
466 elif isinstance(prop, Date):
467 if value is not None and not isinstance(value, date.Date):
468 raise TypeError, 'new property "%s" not a Date'%key
470 elif isinstance(prop, Interval):
471 if value is not None and not isinstance(value, date.Interval):
472 raise TypeError, 'new property "%s" not an Interval'%key
474 # make sure there's data where there needs to be
475 for key, prop in self.properties.items():
476 if propvalues.has_key(key):
477 continue
478 if key == self.key:
479 raise ValueError, 'key property "%s" is required'%key
480 if isinstance(prop, Multilink):
481 propvalues[key] = []
482 else:
483 # TODO: None isn't right here, I think...
484 propvalues[key] = None
486 # done
487 self.db.addnode(self.classname, newid, propvalues)
488 self.db.addjournal(self.classname, newid, 'create', propvalues)
489 return newid
491 def get(self, nodeid, propname, default=_marker, cache=1):
492 """Get the value of a property on an existing node of this class.
494 'nodeid' must be the id of an existing node of this class or an
495 IndexError is raised. 'propname' must be the name of a property
496 of this class or a KeyError is raised.
498 'cache' indicates whether the transaction cache should be queried
499 for the node. If the node has been modified and you need to
500 determine what its values prior to modification are, you need to
501 set cache=0.
502 """
503 if propname == 'id':
504 return nodeid
506 # get the property (raises KeyErorr if invalid)
507 prop = self.properties[propname]
509 # get the node's dict
510 d = self.db.getnode(self.classname, nodeid, cache=cache)
512 if not d.has_key(propname):
513 if default is _marker:
514 if isinstance(prop, Multilink):
515 return []
516 else:
517 # TODO: None isn't right here, I think...
518 return None
519 else:
520 return default
522 return d[propname]
524 # XXX not in spec
525 def getnode(self, nodeid, cache=1):
526 ''' Return a convenience wrapper for the node.
528 'nodeid' must be the id of an existing node of this class or an
529 IndexError is raised.
531 'cache' indicates whether the transaction cache should be queried
532 for the node. If the node has been modified and you need to
533 determine what its values prior to modification are, you need to
534 set cache=0.
535 '''
536 return Node(self, nodeid, cache=cache)
538 def set(self, nodeid, **propvalues):
539 """Modify a property on an existing node of this class.
541 'nodeid' must be the id of an existing node of this class or an
542 IndexError is raised.
544 Each key in 'propvalues' must be the name of a property of this
545 class or a KeyError is raised.
547 All values in 'propvalues' must be acceptable types for their
548 corresponding properties or a TypeError is raised.
550 If the value of the key property is set, it must not collide with
551 other key strings or a ValueError is raised.
553 If the value of a Link or Multilink property contains an invalid
554 node id, a ValueError is raised.
555 """
556 if not propvalues:
557 return
559 if propvalues.has_key('id'):
560 raise KeyError, '"id" is reserved'
562 if self.db.journaltag is None:
563 raise DatabaseError, 'Database open read-only'
565 node = self.db.getnode(self.classname, nodeid)
566 if node.has_key(self.db.RETIRED_FLAG):
567 raise IndexError
568 num_re = re.compile('^\d+$')
569 for key, value in propvalues.items():
570 # check to make sure we're not duplicating an existing key
571 if key == self.key and node[key] != value:
572 try:
573 self.lookup(value)
574 except KeyError:
575 pass
576 else:
577 raise ValueError, 'node with key "%s" exists'%value
579 # this will raise the KeyError if the property isn't valid
580 # ... we don't use getprops() here because we only care about
581 # the writeable properties.
582 prop = self.properties[key]
584 # if the value's the same as the existing value, no sense in
585 # doing anything
586 if node.has_key(key) and value == node[key]:
587 del propvalues[key]
588 continue
590 # do stuff based on the prop type
591 if isinstance(prop, Link):
592 link_class = self.properties[key].classname
593 # if it isn't a number, it's a key
594 if type(value) != type(''):
595 raise ValueError, 'link value must be String'
596 if not num_re.match(value):
597 try:
598 value = self.db.classes[link_class].lookup(value)
599 except (TypeError, KeyError):
600 raise IndexError, 'new property "%s": %s not a %s'%(
601 key, value, self.properties[key].classname)
603 if not self.db.hasnode(link_class, value):
604 raise IndexError, '%s has no node %s'%(link_class, value)
606 if self.properties[key].do_journal:
607 # register the unlink with the old linked node
608 if node[key] is not None:
609 self.db.addjournal(link_class, node[key], 'unlink',
610 (self.classname, nodeid, key))
612 # register the link with the newly linked node
613 if value is not None:
614 self.db.addjournal(link_class, value, 'link',
615 (self.classname, nodeid, key))
617 elif isinstance(prop, Multilink):
618 if type(value) != type([]):
619 raise TypeError, 'new property "%s" not a list of ids'%key
620 link_class = self.properties[key].classname
621 l = []
622 for entry in value:
623 # if it isn't a number, it's a key
624 if type(entry) != type(''):
625 raise ValueError, 'new property "%s" link value ' \
626 'must be a string'%key
627 if not num_re.match(entry):
628 try:
629 entry = self.db.classes[link_class].lookup(entry)
630 except (TypeError, KeyError):
631 raise IndexError, 'new property "%s": %s not a %s'%(
632 key, entry, self.properties[key].classname)
633 l.append(entry)
634 value = l
635 propvalues[key] = value
637 # handle removals
638 if node.has_key(key):
639 l = node[key]
640 else:
641 l = []
642 for id in l[:]:
643 if id in value:
644 continue
645 # register the unlink with the old linked node
646 if self.properties[key].do_journal:
647 self.db.addjournal(link_class, id, 'unlink',
648 (self.classname, nodeid, key))
649 l.remove(id)
651 # handle additions
652 for id in value:
653 if not self.db.hasnode(link_class, id):
654 raise IndexError, '%s has no node %s'%(
655 link_class, id)
656 if id in l:
657 continue
658 # register the link with the newly linked node
659 if self.properties[key].do_journal:
660 self.db.addjournal(link_class, id, 'link',
661 (self.classname, nodeid, key))
662 l.append(id)
664 elif isinstance(prop, String):
665 if value is not None and type(value) != type(''):
666 raise TypeError, 'new property "%s" not a string'%key
668 elif isinstance(prop, Password):
669 if not isinstance(value, password.Password):
670 raise TypeError, 'new property "%s" not a Password'% key
671 propvalues[key] = value
673 elif value is not None and isinstance(prop, Date):
674 if not isinstance(value, date.Date):
675 raise TypeError, 'new property "%s" not a Date'% key
676 propvalues[key] = value
678 elif value is not None and isinstance(prop, Interval):
679 if not isinstance(value, date.Interval):
680 raise TypeError, 'new property "%s" not an Interval'% key
681 propvalues[key] = value
683 node[key] = value
685 # nothing to do?
686 if not propvalues:
687 return
689 # do the set, and journal it
690 self.db.setnode(self.classname, nodeid, node)
691 self.db.addjournal(self.classname, nodeid, 'set', propvalues)
693 def retire(self, nodeid):
694 """Retire a node.
696 The properties on the node remain available from the get() method,
697 and the node's id is never reused.
699 Retired nodes are not returned by the find(), list(), or lookup()
700 methods, and other nodes may reuse the values of their key properties.
701 """
702 if self.db.journaltag is None:
703 raise DatabaseError, 'Database open read-only'
704 node = self.db.getnode(self.classname, nodeid)
705 node[self.db.RETIRED_FLAG] = 1
706 self.db.setnode(self.classname, nodeid, node)
707 self.db.addjournal(self.classname, nodeid, 'retired', None)
709 def history(self, nodeid):
710 """Retrieve the journal of edits on a particular node.
712 'nodeid' must be the id of an existing node of this class or an
713 IndexError is raised.
715 The returned list contains tuples of the form
717 (date, tag, action, params)
719 'date' is a Timestamp object specifying the time of the change and
720 'tag' is the journaltag specified when the database was opened.
721 """
722 return self.db.getjournal(self.classname, nodeid)
724 # Locating nodes:
725 def hasnode(self, nodeid):
726 '''Determine if the given nodeid actually exists
727 '''
728 return self.db.hasnode(self.classname, nodeid)
730 def setkey(self, propname):
731 """Select a String property of this class to be the key property.
733 'propname' must be the name of a String property of this class or
734 None, or a TypeError is raised. The values of the key property on
735 all existing nodes must be unique or a ValueError is raised.
736 """
737 # TODO: validate that the property is a String!
738 self.key = propname
740 def getkey(self):
741 """Return the name of the key property for this class or None."""
742 return self.key
744 def labelprop(self, default_to_id=0):
745 ''' Return the property name for a label for the given node.
747 This method attempts to generate a consistent label for the node.
748 It tries the following in order:
749 1. key property
750 2. "name" property
751 3. "title" property
752 4. first property from the sorted property name list
753 '''
754 k = self.getkey()
755 if k:
756 return k
757 props = self.getprops()
758 if props.has_key('name'):
759 return 'name'
760 elif props.has_key('title'):
761 return 'title'
762 if default_to_id:
763 return 'id'
764 props = props.keys()
765 props.sort()
766 return props[0]
768 # TODO: set up a separate index db file for this? profile?
769 def lookup(self, keyvalue):
770 """Locate a particular node by its key property and return its id.
772 If this class has no key property, a TypeError is raised. If the
773 'keyvalue' matches one of the values for the key property among
774 the nodes in this class, the matching node's id is returned;
775 otherwise a KeyError is raised.
776 """
777 cldb = self.db.getclassdb(self.classname)
778 for nodeid in self.db.getnodeids(self.classname, cldb):
779 node = self.db.getnode(self.classname, nodeid, cldb)
780 if node.has_key(self.db.RETIRED_FLAG):
781 continue
782 if node[self.key] == keyvalue:
783 return nodeid
784 raise KeyError, keyvalue
786 # XXX: change from spec - allows multiple props to match
787 def find(self, **propspec):
788 """Get the ids of nodes in this class which link to the given nodes.
790 'propspec' consists of keyword args propname={nodeid:1,}
791 'propname' must be the name of a property in this class, or a
792 KeyError is raised. That property must be a Link or Multilink
793 property, or a TypeError is raised.
795 Any node in this class whose 'propname' property links to any of the
796 nodeids will be returned. Used by the full text indexing, which knows
797 that "foo" occurs in msg1, msg3 and file7, so we have hits on these issues:
798 db.issue.find(messages={'1':1,'3':1}, files={'7':1})
799 """
800 propspec = propspec.items()
801 for propname, nodeids in propspec:
802 # check the prop is OK
803 prop = self.properties[propname]
804 if not isinstance(prop, Link) and not isinstance(prop, Multilink):
805 raise TypeError, "'%s' not a Link/Multilink property"%propname
806 #XXX edit is expensive and of questionable use
807 #for nodeid in nodeids:
808 # if not self.db.hasnode(prop.classname, nodeid):
809 # raise ValueError, '%s has no node %s'%(prop.classname, nodeid)
811 # ok, now do the find
812 cldb = self.db.getclassdb(self.classname)
813 l = []
814 for id in self.db.getnodeids(self.classname, db=cldb):
815 node = self.db.getnode(self.classname, id, db=cldb)
816 if node.has_key(self.db.RETIRED_FLAG):
817 continue
818 for propname, nodeids in propspec:
819 # can't test if the node doesn't have this property
820 if not node.has_key(propname):
821 continue
822 if type(nodeids) is type(''):
823 nodeids = {nodeids:1}
824 prop = self.properties[propname]
825 value = node[propname]
826 if isinstance(prop, Link) and nodeids.has_key(value):
827 l.append(id)
828 break
829 elif isinstance(prop, Multilink):
830 hit = 0
831 for v in value:
832 if nodeids.has_key(v):
833 l.append(id)
834 hit = 1
835 break
836 if hit:
837 break
838 return l
840 def stringFind(self, **requirements):
841 """Locate a particular node by matching a set of its String
842 properties in a caseless search.
844 If the property is not a String property, a TypeError is raised.
846 The return is a list of the id of all nodes that match.
847 """
848 for propname in requirements.keys():
849 prop = self.properties[propname]
850 if isinstance(not prop, String):
851 raise TypeError, "'%s' not a String property"%propname
852 requirements[propname] = requirements[propname].lower()
853 l = []
854 cldb = self.db.getclassdb(self.classname)
855 for nodeid in self.db.getnodeids(self.classname, cldb):
856 node = self.db.getnode(self.classname, nodeid, cldb)
857 if node.has_key(self.db.RETIRED_FLAG):
858 continue
859 for key, value in requirements.items():
860 if node[key] and node[key].lower() != value:
861 break
862 else:
863 l.append(nodeid)
864 return l
866 def list(self):
867 """Return a list of the ids of the active nodes in this class."""
868 l = []
869 cn = self.classname
870 cldb = self.db.getclassdb(cn)
871 for nodeid in self.db.getnodeids(cn, cldb):
872 node = self.db.getnode(cn, nodeid, cldb)
873 if node.has_key(self.db.RETIRED_FLAG):
874 continue
875 l.append(nodeid)
876 l.sort()
877 return l
879 # XXX not in spec
880 def filter(self, search_matches, filterspec, sort, group,
881 num_re = re.compile('^\d+$')):
882 ''' Return a list of the ids of the active nodes in this class that
883 match the 'filter' spec, sorted by the group spec and then the
884 sort spec
885 '''
886 cn = self.classname
888 # optimise filterspec
889 l = []
890 props = self.getprops()
891 for k, v in filterspec.items():
892 propclass = props[k]
893 if isinstance(propclass, Link):
894 if type(v) is not type([]):
895 v = [v]
896 # replace key values with node ids
897 u = []
898 link_class = self.db.classes[propclass.classname]
899 for entry in v:
900 if entry == '-1': entry = None
901 elif not num_re.match(entry):
902 try:
903 entry = link_class.lookup(entry)
904 except (TypeError,KeyError):
905 raise ValueError, 'property "%s": %s not a %s'%(
906 k, entry, self.properties[k].classname)
907 u.append(entry)
909 l.append((0, k, u))
910 elif isinstance(propclass, Multilink):
911 if type(v) is not type([]):
912 v = [v]
913 # replace key values with node ids
914 u = []
915 link_class = self.db.classes[propclass.classname]
916 for entry in v:
917 if not num_re.match(entry):
918 try:
919 entry = link_class.lookup(entry)
920 except (TypeError,KeyError):
921 raise ValueError, 'new property "%s": %s not a %s'%(
922 k, entry, self.properties[k].classname)
923 u.append(entry)
924 l.append((1, k, u))
925 elif isinstance(propclass, String):
926 # simple glob searching
927 v = re.sub(r'([\|\{\}\\\.\+\[\]\(\)])', r'\\\1', v)
928 v = v.replace('?', '.')
929 v = v.replace('*', '.*?')
930 l.append((2, k, re.compile(v, re.I)))
931 else:
932 l.append((6, k, v))
933 filterspec = l
935 # now, find all the nodes that are active and pass filtering
936 l = []
937 cldb = self.db.getclassdb(cn)
938 for nodeid in self.db.getnodeids(cn, cldb):
939 node = self.db.getnode(cn, nodeid, cldb)
940 if node.has_key(self.db.RETIRED_FLAG):
941 continue
942 # apply filter
943 for t, k, v in filterspec:
944 # this node doesn't have this property, so reject it
945 if not node.has_key(k): break
947 if t == 0 and node[k] not in v:
948 # link - if this node'd property doesn't appear in the
949 # filterspec's nodeid list, skip it
950 break
951 elif t == 1:
952 # multilink - if any of the nodeids required by the
953 # filterspec aren't in this node's property, then skip
954 # it
955 for value in v:
956 if value not in node[k]:
957 break
958 else:
959 continue
960 break
961 elif t == 2 and (node[k] is None or not v.search(node[k])):
962 # RE search
963 break
964 elif t == 6 and node[k] != v:
965 # straight value comparison for the other types
966 break
967 else:
968 l.append((nodeid, node))
969 l.sort()
971 # filter based on full text search
972 if search_matches is not None:
973 k = []
974 l_debug = []
975 for v in l:
976 l_debug.append(v[0])
977 if search_matches.has_key(v[0]):
978 k.append(v)
979 l = k
981 # optimise sort
982 m = []
983 for entry in sort:
984 if entry[0] != '-':
985 m.append(('+', entry))
986 else:
987 m.append((entry[0], entry[1:]))
988 sort = m
990 # optimise group
991 m = []
992 for entry in group:
993 if entry[0] != '-':
994 m.append(('+', entry))
995 else:
996 m.append((entry[0], entry[1:]))
997 group = m
998 # now, sort the result
999 def sortfun(a, b, sort=sort, group=group, properties=self.getprops(),
1000 db = self.db, cl=self):
1001 a_id, an = a
1002 b_id, bn = b
1003 # sort by group and then sort
1004 for list in group, sort:
1005 for dir, prop in list:
1006 # sorting is class-specific
1007 propclass = properties[prop]
1009 # handle the properties that might be "faked"
1010 # also, handle possible missing properties
1011 try:
1012 if not an.has_key(prop):
1013 an[prop] = cl.get(a_id, prop)
1014 av = an[prop]
1015 except KeyError:
1016 # the node doesn't have a value for this property
1017 if isinstance(propclass, Multilink): av = []
1018 else: av = ''
1019 try:
1020 if not bn.has_key(prop):
1021 bn[prop] = cl.get(b_id, prop)
1022 bv = bn[prop]
1023 except KeyError:
1024 # the node doesn't have a value for this property
1025 if isinstance(propclass, Multilink): bv = []
1026 else: bv = ''
1028 # String and Date values are sorted in the natural way
1029 if isinstance(propclass, String):
1030 # clean up the strings
1031 if av and av[0] in string.uppercase:
1032 av = an[prop] = av.lower()
1033 if bv and bv[0] in string.uppercase:
1034 bv = bn[prop] = bv.lower()
1035 if (isinstance(propclass, String) or
1036 isinstance(propclass, Date)):
1037 # it might be a string that's really an integer
1038 try:
1039 av = int(av)
1040 bv = int(bv)
1041 except:
1042 pass
1043 if dir == '+':
1044 r = cmp(av, bv)
1045 if r != 0: return r
1046 elif dir == '-':
1047 r = cmp(bv, av)
1048 if r != 0: return r
1050 # Link properties are sorted according to the value of
1051 # the "order" property on the linked nodes if it is
1052 # present; or otherwise on the key string of the linked
1053 # nodes; or finally on the node ids.
1054 elif isinstance(propclass, Link):
1055 link = db.classes[propclass.classname]
1056 if av is None and bv is not None: return -1
1057 if av is not None and bv is None: return 1
1058 if av is None and bv is None: continue
1059 if link.getprops().has_key('order'):
1060 if dir == '+':
1061 r = cmp(link.get(av, 'order'),
1062 link.get(bv, 'order'))
1063 if r != 0: return r
1064 elif dir == '-':
1065 r = cmp(link.get(bv, 'order'),
1066 link.get(av, 'order'))
1067 if r != 0: return r
1068 elif link.getkey():
1069 key = link.getkey()
1070 if dir == '+':
1071 r = cmp(link.get(av, key), link.get(bv, key))
1072 if r != 0: return r
1073 elif dir == '-':
1074 r = cmp(link.get(bv, key), link.get(av, key))
1075 if r != 0: return r
1076 else:
1077 if dir == '+':
1078 r = cmp(av, bv)
1079 if r != 0: return r
1080 elif dir == '-':
1081 r = cmp(bv, av)
1082 if r != 0: return r
1084 # Multilink properties are sorted according to how many
1085 # links are present.
1086 elif isinstance(propclass, Multilink):
1087 if dir == '+':
1088 r = cmp(len(av), len(bv))
1089 if r != 0: return r
1090 elif dir == '-':
1091 r = cmp(len(bv), len(av))
1092 if r != 0: return r
1093 # end for dir, prop in list:
1094 # end for list in sort, group:
1095 # if all else fails, compare the ids
1096 return cmp(a[0], b[0])
1098 l.sort(sortfun)
1099 return [i[0] for i in l]
1101 def count(self):
1102 """Get the number of nodes in this class.
1104 If the returned integer is 'numnodes', the ids of all the nodes
1105 in this class run from 1 to numnodes, and numnodes+1 will be the
1106 id of the next node to be created in this class.
1107 """
1108 return self.db.countnodes(self.classname)
1110 # Manipulating properties:
1112 def getprops(self, protected=1):
1113 """Return a dictionary mapping property names to property objects.
1114 If the "protected" flag is true, we include protected properties -
1115 those which may not be modified."""
1116 d = self.properties.copy()
1117 if protected:
1118 d['id'] = String()
1119 return d
1121 def addprop(self, **properties):
1122 """Add properties to this class.
1124 The keyword arguments in 'properties' must map names to property
1125 objects, or a TypeError is raised. None of the keys in 'properties'
1126 may collide with the names of existing properties, or a ValueError
1127 is raised before any properties have been added.
1128 """
1129 for key in properties.keys():
1130 if self.properties.has_key(key):
1131 raise ValueError, key
1132 self.properties.update(properties)
1134 def index(self, nodeid):
1135 '''Add (or refresh) the node to search indexes
1136 '''
1137 # find all the String properties that have indexme
1138 for prop, propclass in self.getprops().items():
1139 if isinstance(propclass, String) and propclass.indexme:
1140 # and index them under (classname, nodeid, property)
1141 self.db.indexer.add_text((self.classname, nodeid, prop),
1142 str(self.get(nodeid, prop)))
1144 # XXX not in spec
1145 class Node:
1146 ''' A convenience wrapper for the given node
1147 '''
1148 def __init__(self, cl, nodeid, cache=1):
1149 self.__dict__['cl'] = cl
1150 self.__dict__['nodeid'] = nodeid
1151 self.__dict__['cache'] = cache
1152 def keys(self, protected=1):
1153 return self.cl.getprops(protected=protected).keys()
1154 def values(self, protected=1):
1155 l = []
1156 for name in self.cl.getprops(protected=protected).keys():
1157 l.append(self.cl.get(self.nodeid, name, cache=self.cache))
1158 return l
1159 def items(self, protected=1):
1160 l = []
1161 for name in self.cl.getprops(protected=protected).keys():
1162 l.append((name, self.cl.get(self.nodeid, name, cache=self.cache)))
1163 return l
1164 def has_key(self, name):
1165 return self.cl.getprops().has_key(name)
1166 def __getattr__(self, name):
1167 if self.__dict__.has_key(name):
1168 return self.__dict__[name]
1169 try:
1170 return self.cl.get(self.nodeid, name, cache=self.cache)
1171 except KeyError, value:
1172 # we trap this but re-raise it as AttributeError - all other
1173 # exceptions should pass through untrapped
1174 pass
1175 # nope, no such attribute
1176 raise AttributeError, str(value)
1177 def __getitem__(self, name):
1178 return self.cl.get(self.nodeid, name, cache=self.cache)
1179 def __setattr__(self, name, value):
1180 try:
1181 return self.cl.set(self.nodeid, **{name: value})
1182 except KeyError, value:
1183 raise AttributeError, str(value)
1184 def __setitem__(self, name, value):
1185 self.cl.set(self.nodeid, **{name: value})
1186 def history(self):
1187 return self.cl.history(self.nodeid)
1188 def retire(self):
1189 return self.cl.retire(self.nodeid)
1192 def Choice(name, db, *options):
1193 '''Quick helper to create a simple class with choices
1194 '''
1195 cl = Class(db, name, name=String(), order=String())
1196 for i in range(len(options)):
1197 cl.create(name=options[i], order=i)
1198 return hyperdb.Link(name)
1200 #
1201 # $Log: not supported by cvs2svn $
1202 # Revision 1.71 2002/07/09 03:02:52 richard
1203 # More indexer work:
1204 # - all String properties may now be indexed too. Currently there's a bit of
1205 # "issue" specific code in the actual searching which needs to be
1206 # addressed. In a nutshell:
1207 # + pass 'indexme="yes"' as a String() property initialisation arg, eg:
1208 # file = FileClass(db, "file", name=String(), type=String(),
1209 # comment=String(indexme="yes"))
1210 # + the comment will then be indexed and be searchable, with the results
1211 # related back to the issue that the file is linked to
1212 # - as a result of this work, the FileClass has a default MIME type that may
1213 # be overridden in a subclass, or by the use of a "type" property as is
1214 # done in the default templates.
1215 # - the regeneration of the indexes (if necessary) is done once the schema is
1216 # set up in the dbinit.
1217 #
1218 # Revision 1.70 2002/06/27 12:06:20 gmcm
1219 # Improve an error message.
1220 #
1221 # Revision 1.69 2002/06/17 23:15:29 richard
1222 # Can debug to stdout now
1223 #
1224 # Revision 1.68 2002/06/11 06:52:03 richard
1225 # . #564271 ] find() and new properties
1226 #
1227 # Revision 1.67 2002/06/11 05:02:37 richard
1228 # . #565979 ] code error in hyperdb.Class.find
1229 #
1230 # Revision 1.66 2002/05/25 07:16:24 rochecompaan
1231 # Merged search_indexing-branch with HEAD
1232 #
1233 # Revision 1.65 2002/05/22 04:12:05 richard
1234 # . applied patch #558876 ] cgi client customization
1235 # ... with significant additions and modifications ;)
1236 # - extended handling of ML assignedto to all places it's handled
1237 # - added more NotFound info
1238 #
1239 # Revision 1.64 2002/05/15 06:21:21 richard
1240 # . node caching now works, and gives a small boost in performance
1241 #
1242 # As a part of this, I cleaned up the DEBUG output and implemented TRACE
1243 # output (HYPERDBTRACE='file to trace to') with checkpoints at the start of
1244 # CGI requests. Run roundup with python -O to skip all the DEBUG/TRACE stuff
1245 # (using if __debug__ which is compiled out with -O)
1246 #
1247 # Revision 1.63 2002/04/15 23:25:15 richard
1248 # . node ids are now generated from a lockable store - no more race conditions
1249 #
1250 # We're using the portalocker code by Jonathan Feinberg that was contributed
1251 # to the ASPN Python cookbook. This gives us locking across Unix and Windows.
1252 #
1253 # Revision 1.62 2002/04/03 07:05:50 richard
1254 # d'oh! killed retirement of nodes :(
1255 # all better now...
1256 #
1257 # Revision 1.61 2002/04/03 06:11:51 richard
1258 # Fix for old databases that contain properties that don't exist any more.
1259 #
1260 # Revision 1.60 2002/04/03 05:54:31 richard
1261 # Fixed serialisation problem by moving the serialisation step out of the
1262 # hyperdb.Class (get, set) into the hyperdb.Database.
1263 #
1264 # Also fixed htmltemplate after the showid changes I made yesterday.
1265 #
1266 # Unit tests for all of the above written.
1267 #
1268 # Revision 1.59.2.2 2002/04/20 13:23:33 rochecompaan
1269 # We now have a separate search page for nodes. Search links for
1270 # different classes can be customized in instance_config similar to
1271 # index links.
1272 #
1273 # Revision 1.59.2.1 2002/04/19 19:54:42 rochecompaan
1274 # cgi_client.py
1275 # removed search link for the time being
1276 # moved rendering of matches to htmltemplate
1277 # hyperdb.py
1278 # filtering of nodes on full text search incorporated in filter method
1279 # roundupdb.py
1280 # added paramater to call of filter method
1281 # roundup_indexer.py
1282 # added search method to RoundupIndexer class
1283 #
1284 # Revision 1.59 2002/03/12 22:52:26 richard
1285 # more pychecker warnings removed
1286 #
1287 # Revision 1.58 2002/02/27 03:23:16 richard
1288 # Ran it through pychecker, made fixes
1289 #
1290 # Revision 1.57 2002/02/20 05:23:24 richard
1291 # Didn't accomodate new values for new properties
1292 #
1293 # Revision 1.56 2002/02/20 05:05:28 richard
1294 # . Added simple editing for classes that don't define a templated interface.
1295 # - access using the admin "class list" interface
1296 # - limited to admin-only
1297 # - requires the csv module from object-craft (url given if it's missing)
1298 #
1299 # Revision 1.55 2002/02/15 07:27:12 richard
1300 # Oops, precedences around the way w0rng.
1301 #
1302 # Revision 1.54 2002/02/15 07:08:44 richard
1303 # . Alternate email addresses are now available for users. See the MIGRATION
1304 # file for info on how to activate the feature.
1305 #
1306 # Revision 1.53 2002/01/22 07:21:13 richard
1307 # . fixed back_bsddb so it passed the journal tests
1308 #
1309 # ... it didn't seem happy using the back_anydbm _open method, which is odd.
1310 # Yet another occurrance of whichdb not being able to recognise older bsddb
1311 # databases. Yadda yadda. Made the HYPERDBDEBUG stuff more sane in the
1312 # process.
1313 #
1314 # Revision 1.52 2002/01/21 16:33:19 rochecompaan
1315 # You can now use the roundup-admin tool to pack the database
1316 #
1317 # Revision 1.51 2002/01/21 03:01:29 richard
1318 # brief docco on the do_journal argument
1319 #
1320 # Revision 1.50 2002/01/19 13:16:04 rochecompaan
1321 # Journal entries for link and multilink properties can now be switched on
1322 # or off.
1323 #
1324 # Revision 1.49 2002/01/16 07:02:57 richard
1325 # . lots of date/interval related changes:
1326 # - more relaxed date format for input
1327 #
1328 # Revision 1.48 2002/01/14 06:32:34 richard
1329 # . #502951 ] adding new properties to old database
1330 #
1331 # Revision 1.47 2002/01/14 02:20:15 richard
1332 # . changed all config accesses so they access either the instance or the
1333 # config attriubute on the db. This means that all config is obtained from
1334 # instance_config instead of the mish-mash of classes. This will make
1335 # switching to a ConfigParser setup easier too, I hope.
1336 #
1337 # At a minimum, this makes migration a _little_ easier (a lot easier in the
1338 # 0.5.0 switch, I hope!)
1339 #
1340 # Revision 1.46 2002/01/07 10:42:23 richard
1341 # oops
1342 #
1343 # Revision 1.45 2002/01/02 04:18:17 richard
1344 # hyperdb docstrings
1345 #
1346 # Revision 1.44 2002/01/02 02:31:38 richard
1347 # Sorry for the huge checkin message - I was only intending to implement #496356
1348 # but I found a number of places where things had been broken by transactions:
1349 # . modified ROUNDUPDBSENDMAILDEBUG to be SENDMAILDEBUG and hold a filename
1350 # for _all_ roundup-generated smtp messages to be sent to.
1351 # . the transaction cache had broken the roundupdb.Class set() reactors
1352 # . newly-created author users in the mailgw weren't being committed to the db
1353 #
1354 # Stuff that made it into CHANGES.txt (ie. the stuff I was actually working
1355 # on when I found that stuff :):
1356 # . #496356 ] Use threading in messages
1357 # . detectors were being registered multiple times
1358 # . added tests for mailgw
1359 # . much better attaching of erroneous messages in the mail gateway
1360 #
1361 # Revision 1.43 2001/12/20 06:13:24 rochecompaan
1362 # Bugs fixed:
1363 # . Exception handling in hyperdb for strings-that-look-like numbers got
1364 # lost somewhere
1365 # . Internet Explorer submits full path for filename - we now strip away
1366 # the path
1367 # Features added:
1368 # . Link and multilink properties are now displayed sorted in the cgi
1369 # interface
1370 #
1371 # Revision 1.42 2001/12/16 10:53:37 richard
1372 # take a copy of the node dict so that the subsequent set
1373 # operation doesn't modify the oldvalues structure
1374 #
1375 # Revision 1.41 2001/12/15 23:47:47 richard
1376 # Cleaned up some bare except statements
1377 #
1378 # Revision 1.40 2001/12/14 23:42:57 richard
1379 # yuck, a gdbm instance tests false :(
1380 # I've left the debugging code in - it should be removed one day if we're ever
1381 # _really_ anal about performace :)
1382 #
1383 # Revision 1.39 2001/12/02 05:06:16 richard
1384 # . We now use weakrefs in the Classes to keep the database reference, so
1385 # the close() method on the database is no longer needed.
1386 # I bumped the minimum python requirement up to 2.1 accordingly.
1387 # . #487480 ] roundup-server
1388 # . #487476 ] INSTALL.txt
1389 #
1390 # I also cleaned up the change message / post-edit stuff in the cgi client.
1391 # There's now a clearly marked "TODO: append the change note" where I believe
1392 # the change note should be added there. The "changes" list will obviously
1393 # have to be modified to be a dict of the changes, or somesuch.
1394 #
1395 # More testing needed.
1396 #
1397 # Revision 1.38 2001/12/01 07:17:50 richard
1398 # . We now have basic transaction support! Information is only written to
1399 # the database when the commit() method is called. Only the anydbm
1400 # backend is modified in this way - neither of the bsddb backends have been.
1401 # The mail, admin and cgi interfaces all use commit (except the admin tool
1402 # doesn't have a commit command, so interactive users can't commit...)
1403 # . Fixed login/registration forwarding the user to the right page (or not,
1404 # on a failure)
1405 #
1406 # Revision 1.37 2001/11/28 21:55:35 richard
1407 # . login_action and newuser_action return values were being ignored
1408 # . Woohoo! Found that bloody re-login bug that was killing the mail
1409 # gateway.
1410 # (also a minor cleanup in hyperdb)
1411 #
1412 # Revision 1.36 2001/11/27 03:16:09 richard
1413 # Another place that wasn't handling missing properties.
1414 #
1415 # Revision 1.35 2001/11/22 15:46:42 jhermann
1416 # Added module docstrings to all modules.
1417 #
1418 # Revision 1.34 2001/11/21 04:04:43 richard
1419 # *sigh* more missing value handling
1420 #
1421 # Revision 1.33 2001/11/21 03:40:54 richard
1422 # more new property handling
1423 #
1424 # Revision 1.32 2001/11/21 03:11:28 richard
1425 # Better handling of new properties.
1426 #
1427 # Revision 1.31 2001/11/12 22:01:06 richard
1428 # Fixed issues with nosy reaction and author copies.
1429 #
1430 # Revision 1.30 2001/11/09 10:11:08 richard
1431 # . roundup-admin now handles all hyperdb exceptions
1432 #
1433 # Revision 1.29 2001/10/27 00:17:41 richard
1434 # Made Class.stringFind() do caseless matching.
1435 #
1436 # Revision 1.28 2001/10/21 04:44:50 richard
1437 # bug #473124: UI inconsistency with Link fields.
1438 # This also prompted me to fix a fairly long-standing usability issue -
1439 # that of being able to turn off certain filters.
1440 #
1441 # Revision 1.27 2001/10/20 23:44:27 richard
1442 # Hyperdatabase sorts strings-that-look-like-numbers as numbers now.
1443 #
1444 # Revision 1.26 2001/10/16 03:48:01 richard
1445 # admin tool now complains if a "find" is attempted with a non-link property.
1446 #
1447 # Revision 1.25 2001/10/11 00:17:51 richard
1448 # Reverted a change in hyperdb so the default value for missing property
1449 # values in a create() is None and not '' (the empty string.) This obviously
1450 # breaks CSV import/export - the string 'None' will be created in an
1451 # export/import operation.
1452 #
1453 # Revision 1.24 2001/10/10 03:54:57 richard
1454 # Added database importing and exporting through CSV files.
1455 # Uses the csv module from object-craft for exporting if it's available.
1456 # Requires the csv module for importing.
1457 #
1458 # Revision 1.23 2001/10/09 23:58:10 richard
1459 # Moved the data stringification up into the hyperdb.Class class' get, set
1460 # and create methods. This means that the data is also stringified for the
1461 # journal call, and removes duplication of code from the backends. The
1462 # backend code now only sees strings.
1463 #
1464 # Revision 1.22 2001/10/09 07:25:59 richard
1465 # Added the Password property type. See "pydoc roundup.password" for
1466 # implementation details. Have updated some of the documentation too.
1467 #
1468 # Revision 1.21 2001/10/05 02:23:24 richard
1469 # . roundup-admin create now prompts for property info if none is supplied
1470 # on the command-line.
1471 # . hyperdb Class getprops() method may now return only the mutable
1472 # properties.
1473 # . Login now uses cookies, which makes it a whole lot more flexible. We can
1474 # now support anonymous user access (read-only, unless there's an
1475 # "anonymous" user, in which case write access is permitted). Login
1476 # handling has been moved into cgi_client.Client.main()
1477 # . The "extended" schema is now the default in roundup init.
1478 # . The schemas have had their page headings modified to cope with the new
1479 # login handling. Existing installations should copy the interfaces.py
1480 # file from the roundup lib directory to their instance home.
1481 # . Incorrectly had a Bizar Software copyright on the cgitb.py module from
1482 # Ping - has been removed.
1483 # . Fixed a whole bunch of places in the CGI interface where we should have
1484 # been returning Not Found instead of throwing an exception.
1485 # . Fixed a deviation from the spec: trying to modify the 'id' property of
1486 # an item now throws an exception.
1487 #
1488 # Revision 1.20 2001/10/04 02:12:42 richard
1489 # Added nicer command-line item adding: passing no arguments will enter an
1490 # interactive more which asks for each property in turn. While I was at it, I
1491 # fixed an implementation problem WRT the spec - I wasn't raising a
1492 # ValueError if the key property was missing from a create(). Also added a
1493 # protected=boolean argument to getprops() so we can list only the mutable
1494 # properties (defaults to yes, which lists the immutables).
1495 #
1496 # Revision 1.19 2001/08/29 04:47:18 richard
1497 # Fixed CGI client change messages so they actually include the properties
1498 # changed (again).
1499 #
1500 # Revision 1.18 2001/08/16 07:34:59 richard
1501 # better CGI text searching - but hidden filter fields are disappearing...
1502 #
1503 # Revision 1.17 2001/08/16 06:59:58 richard
1504 # all searches use re now - and they're all case insensitive
1505 #
1506 # Revision 1.16 2001/08/15 23:43:18 richard
1507 # Fixed some isFooTypes that I missed.
1508 # Refactored some code in the CGI code.
1509 #
1510 # Revision 1.15 2001/08/12 06:32:36 richard
1511 # using isinstance(blah, Foo) now instead of isFooType
1512 #
1513 # Revision 1.14 2001/08/07 00:24:42 richard
1514 # stupid typo
1515 #
1516 # Revision 1.13 2001/08/07 00:15:51 richard
1517 # Added the copyright/license notice to (nearly) all files at request of
1518 # Bizar Software.
1519 #
1520 # Revision 1.12 2001/08/02 06:38:17 richard
1521 # Roundupdb now appends "mailing list" information to its messages which
1522 # include the e-mail address and web interface address. Templates may
1523 # override this in their db classes to include specific information (support
1524 # instructions, etc).
1525 #
1526 # Revision 1.11 2001/08/01 04:24:21 richard
1527 # mailgw was assuming certain properties existed on the issues being created.
1528 #
1529 # Revision 1.10 2001/07/30 02:38:31 richard
1530 # get() now has a default arg - for migration only.
1531 #
1532 # Revision 1.9 2001/07/29 09:28:23 richard
1533 # Fixed sorting by clicking on column headings.
1534 #
1535 # Revision 1.8 2001/07/29 08:27:40 richard
1536 # Fixed handling of passed-in values in form elements (ie. during a
1537 # drill-down)
1538 #
1539 # Revision 1.7 2001/07/29 07:01:39 richard
1540 # Added vim command to all source so that we don't get no steenkin' tabs :)
1541 #
1542 # Revision 1.6 2001/07/29 05:36:14 richard
1543 # Cleanup of the link label generation.
1544 #
1545 # Revision 1.5 2001/07/29 04:05:37 richard
1546 # Added the fabricated property "id".
1547 #
1548 # Revision 1.4 2001/07/27 06:25:35 richard
1549 # Fixed some of the exceptions so they're the right type.
1550 # Removed the str()-ification of node ids so we don't mask oopsy errors any
1551 # more.
1552 #
1553 # Revision 1.3 2001/07/27 05:17:14 richard
1554 # just some comments
1555 #
1556 # Revision 1.2 2001/07/22 12:09:32 richard
1557 # Final commit of Grande Splite
1558 #
1559 # Revision 1.1 2001/07/22 11:58:35 richard
1560 # More Grande Splite
1561 #
1562 #
1563 # vim: set filetype=python ts=4 sw=4 et si