Ticket #4521: signal-class.patch

File signal-class.patch, 2.8 kB (added by Brian Harring <ferringb@gmail.com>, 1 year ago)
add django.dispatch.signal func to return a singleton with docstring/label bound in, and usable (str\|repr)

django/db/models/signals.py

old	new
1		class_prepared = object()
2
3		pre_init= object()
4		post_init = object()
5
6		pre_save = object()
7		post_save = object()
8
9		pre_delete = object()
10		post_delete = object()
11
12		post_syncdb = object()
	1	from django.dispatch import signal
	2
	3	class_prepared = signal("class_prepared")
	4
	5	pre_init= signal('pre_init')
	6	post_init = signal('post_init')
	7
	8	pre_save = signal('pre_save')
	9	post_save = signal('post_save')
	10
	11	pre_delete = signal('pre_delete')
	12	post_delete = signal('post_delete')
	13
	14	post_syncdb = signal('post_syncdb')

old	new
4	4	__author__ = "Patrick K. O'Brien"
5	5	__license__ = "BSD-style, see license.txt for details"
6	6
	7	class _signal(object):
	8	def __init__(self, label):
	9	self.label = label
	10
	11	def __str__(self):
	12	return self.label
	13
	14	def __repr__(self):
	15	return "<signal signal=%r @#%x>" % (self.label, id(self))
	16
	17	def signal(signal_name, docstring=None):
	18	if docstring is None:
	19	return _signal(signal_name)
	20	class signal(_signal):
	21	__doc__ = docstring
	22	return signal(signal_name)

old	new
26	26	vs. the original code.)
27	27	"""
28	28	import types, weakref
29		from django.dispatch import saferef, robustapply, errors
	29	from django.dispatch import saferef, robustapply, errors, signal
30	30
31	31	__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
32	32	__cvsid__ = "$Id: dispatcher.py,v 1.9 2005/09/17 04:55:57 mcfletch Exp $"
33	33	__version__ = "$Revision: 1.9 $"[11:-2]
34	34
35
36		class _Parameter:
37		"""Used to represent default parameter values."""
38		def __repr__(self):
39		return self.__class__.__name__
40
41		class _Any(_Parameter):
	35	Any = signal('Any',
42	36	"""Singleton used to signal either "Any Sender" or "Any Signal"
43	37
44	38	The Any object can be used with connect, disconnect,
45	39	send, or sendExact to signal that the parameter given
46	40	Any should react to all senders/signals, not just
47	41	a particular sender/signal.
48		"""
49		Any = _Any()
	42	""")
50	43
51		class _Anonymous(_Parameter):
	44	Anonymous = signal('Anonymous',
52	45	"""Singleton used to signal "Anonymous Sender"
53	46
54	47	The Anonymous object is used to signal that the sender
…	…
65	58	in either function then all messages are routed
66	59	as though there was a single sender (Anonymous)
67	60	being used everywhere.
68		"""
69		Anonymous = _Anonymous()
	61	""")
70	62
71	63	WEAKREF_TYPES = (weakref.ReferenceType, saferef.BoundMethodWeakref)
72	64