1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
from django.contrib.messages import constants
from django.contrib.messages.storage import default_storage
from django.http import HttpRequest
__all__ = (
'add_message', 'get_messages',
'get_level', 'set_level',
'debug', 'info', 'success', 'warning', 'error',
'MessageFailure',
)
class MessageFailure(Exception):
pass
def add_message(request, level, message, extra_tags='', fail_silently=False):
"""
Attempts to add a message to the request using the 'messages' app.
"""
if not isinstance(request, HttpRequest):
raise TypeError("add_message() argument must be an HttpRequest object, "
"not '%s'." % request.__class__.__name__)
if hasattr(request, '_messages'):
return request._messages.add(level, message, extra_tags)
if not fail_silently:
raise MessageFailure('You cannot add messages without installing '
'django.contrib.messages.middleware.MessageMiddleware')
def get_messages(request):
"""
Returns the message storage on the request if it exists, otherwise returns
an empty list.
"""
return getattr(request, '_messages', [])
def get_level(request):
"""
Returns the minimum level of messages to be recorded.
The default level is the ``MESSAGE_LEVEL`` setting. If this is not found,
the ``INFO`` level is used.
"""
storage = getattr(request, '_messages', default_storage(request))
return storage.level
def set_level(request, level):
"""
Sets the minimum level of messages to be recorded, returning ``True`` if
the level was recorded successfully.
If set to ``None``, the default level will be used (see the ``get_level``
method).
"""
if not hasattr(request, '_messages'):
return False
request._messages.level = level
return True
def debug(request, message, extra_tags='', fail_silently=False):
"""
Adds a message with the ``DEBUG`` level.
"""
add_message(request, constants.DEBUG, message, extra_tags=extra_tags,
fail_silently=fail_silently)
def info(request, message, extra_tags='', fail_silently=False):
"""
Adds a message with the ``INFO`` level.
"""
add_message(request, constants.INFO, message, extra_tags=extra_tags,
fail_silently=fail_silently)
def success(request, message, extra_tags='', fail_silently=False):
"""
Adds a message with the ``SUCCESS`` level.
"""
add_message(request, constants.SUCCESS, message, extra_tags=extra_tags,
fail_silently=fail_silently)
def warning(request, message, extra_tags='', fail_silently=False):
"""
Adds a message with the ``WARNING`` level.
"""
add_message(request, constants.WARNING, message, extra_tags=extra_tags,
fail_silently=fail_silently)
def error(request, message, extra_tags='', fail_silently=False):
"""
Adds a message with the ``ERROR`` level.
"""
add_message(request, constants.ERROR, message, extra_tags=extra_tags,
fail_silently=fail_silently)
|