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comparison roundup/hyperdb.py @ 555:5fd94347c6f2

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Journal entries for link and multilink properties can now be switched on or off.
author Roche Compaan <rochecompaan@users.sourceforge.net>
date Sat, 19 Jan 2002 13:16:04 +0000
parents 22e0edf7da6e
children dfac856502d1
comparison
equal deleted inserted replaced
554:7e7b4183a8bd 555:5fd94347c6f2
13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 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" 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, 15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
17 # 17 #
18 # $Id: hyperdb.py,v 1.49 2002-01-16 07:02:57 richard Exp $ 18 # $Id: hyperdb.py,v 1.50 2002-01-19 13:16:04 rochecompaan Exp $
19 19
20 __doc__ = """ 20 __doc__ = """
21 Hyperdatabase implementation, especially field types. 21 Hyperdatabase implementation, especially field types.
22 """ 22 """
23 23
52 return '<%s>'%self.__class__ 52 return '<%s>'%self.__class__
53 53
54 class Link: 54 class Link:
55 """An object designating a Link property that links to a 55 """An object designating a Link property that links to a
56 node in a specified class.""" 56 node in a specified class."""
57 def __init__(self, classname): 57 def __init__(self, classname, do_journal='no'):
58 self.classname = classname 58 self.classname = classname
59 self.do_journal = do_journal == 'yes'
59 def __repr__(self): 60 def __repr__(self):
60 return '<%s to "%s">'%(self.__class__, self.classname) 61 return '<%s to "%s">'%(self.__class__, self.classname)
61 62
62 class Multilink: 63 class Multilink:
63 """An object designating a Multilink property that links 64 """An object designating a Multilink property that links
64 to nodes in a specified class. 65 to nodes in a specified class.
65 """ 66 """
66 def __init__(self, classname): 67 def __init__(self, classname, do_journal='no'):
67 self.classname = classname 68 self.classname = classname
69 self.do_journal = do_journal == 'yes'
68 def __repr__(self): 70 def __repr__(self):
69 return '<%s to "%s">'%(self.__class__, self.classname) 71 return '<%s to "%s">'%(self.__class__, self.classname)
70 72
71 class DatabaseError(ValueError): 73 class DatabaseError(ValueError):
72 pass 74 pass
307 309
308 # save off the value 310 # save off the value
309 propvalues[key] = value 311 propvalues[key] = value
310 312
311 # register the link with the newly linked node 313 # register the link with the newly linked node
312 self.db.addjournal(link_class, value, 'link', 314 if self.properties[key].do_journal:
313 (self.classname, newid, key)) 315 self.db.addjournal(link_class, value, 'link',
316 (self.classname, newid, key))
314 317
315 elif isinstance(prop, Multilink): 318 elif isinstance(prop, Multilink):
316 if type(value) != type([]): 319 if type(value) != type([]):
317 raise TypeError, 'new property "%s" not a list of ids'%key 320 raise TypeError, 'new property "%s" not a list of ids'%key
318 link_class = self.properties[key].classname 321 link_class = self.properties[key].classname
334 # handle additions 337 # handle additions
335 for id in value: 338 for id in value:
336 if not self.db.hasnode(link_class, id): 339 if not self.db.hasnode(link_class, id):
337 raise IndexError, '%s has no node %s'%(link_class, id) 340 raise IndexError, '%s has no node %s'%(link_class, id)
338 # register the link with the newly linked node 341 # register the link with the newly linked node
339 self.db.addjournal(link_class, id, 'link', 342 if self.properties[key].do_journal:
340 (self.classname, newid, key)) 343 self.db.addjournal(link_class, id, 'link',
344 (self.classname, newid, key))
341 345
342 elif isinstance(prop, String): 346 elif isinstance(prop, String):
343 if type(value) != type(''): 347 if type(value) != type(''):
344 raise TypeError, 'new property "%s" not a string'%key 348 raise TypeError, 'new property "%s" not a string'%key
345 349
503 key, value, self.properties[key].classname) 507 key, value, self.properties[key].classname)
504 508
505 if not self.db.hasnode(link_class, value): 509 if not self.db.hasnode(link_class, value):
506 raise IndexError, '%s has no node %s'%(link_class, value) 510 raise IndexError, '%s has no node %s'%(link_class, value)
507 511
508 # register the unlink with the old linked node 512 if self.properties[key].do_journal:
509 if node[key] is not None: 513 # register the unlink with the old linked node
510 self.db.addjournal(link_class, node[key], 'unlink', 514 if node[key] is not None:
511 (self.classname, nodeid, key)) 515 self.db.addjournal(link_class, node[key], 'unlink',
512 516 (self.classname, nodeid, key))
513 # register the link with the newly linked node 517
514 if value is not None: 518 # register the link with the newly linked node
515 self.db.addjournal(link_class, value, 'link', 519 if value is not None:
516 (self.classname, nodeid, key)) 520 self.db.addjournal(link_class, value, 'link',
521 (self.classname, nodeid, key))
517 522
518 elif isinstance(prop, Multilink): 523 elif isinstance(prop, Multilink):
519 if type(value) != type([]): 524 if type(value) != type([]):
520 raise TypeError, 'new property "%s" not a list of ids'%key 525 raise TypeError, 'new property "%s" not a list of ids'%key
521 link_class = self.properties[key].classname 526 link_class = self.properties[key].classname
541 l = [] 546 l = []
542 for id in l[:]: 547 for id in l[:]:
543 if id in value: 548 if id in value:
544 continue 549 continue
545 # register the unlink with the old linked node 550 # register the unlink with the old linked node
546 self.db.addjournal(link_class, id, 'unlink', 551 if self.properties[key].do_journal:
547 (self.classname, nodeid, key)) 552 self.db.addjournal(link_class, id, 'unlink',
553 (self.classname, nodeid, key))
548 l.remove(id) 554 l.remove(id)
549 555
550 # handle additions 556 # handle additions
551 for id in value: 557 for id in value:
552 if not self.db.hasnode(link_class, id): 558 if not self.db.hasnode(link_class, id):
553 raise IndexError, '%s has no node %s'%(link_class, id) 559 raise IndexError, '%s has no node %s'%(
560 link_class, id)
554 if id in l: 561 if id in l:
555 continue 562 continue
556 # register the link with the newly linked node 563 # register the link with the newly linked node
557 self.db.addjournal(link_class, id, 'link', 564 if self.properties[key].do_journal:
558 (self.classname, nodeid, key)) 565 self.db.addjournal(link_class, id, 'link',
566 (self.classname, nodeid, key))
559 l.append(id) 567 l.append(id)
560 568
561 elif isinstance(prop, String): 569 elif isinstance(prop, String):
562 if value is not None and type(value) != type(''): 570 if value is not None and type(value) != type(''):
563 raise TypeError, 'new property "%s" not a string'%key 571 raise TypeError, 'new property "%s" not a string'%key
1045 cl.create(name=option[i], order=i) 1053 cl.create(name=option[i], order=i)
1046 return hyperdb.Link(name) 1054 return hyperdb.Link(name)
1047 1055
1048 # 1056 #
1049 # $Log: not supported by cvs2svn $ 1057 # $Log: not supported by cvs2svn $
1058 # Revision 1.49 2002/01/16 07:02:57 richard
1059 # . lots of date/interval related changes:
1060 # - more relaxed date format for input
1061 #
1050 # Revision 1.48 2002/01/14 06:32:34 richard 1062 # Revision 1.48 2002/01/14 06:32:34 richard
1051 # . #502951 ] adding new properties to old database 1063 # . #502951 ] adding new properties to old database
1052 # 1064 #
1053 # Revision 1.47 2002/01/14 02:20:15 richard 1065 # Revision 1.47 2002/01/14 02:20:15 richard
1054 # . changed all config accesses so they access either the instance or the 1066 # . changed all config accesses so they access either the instance or the
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