from django contrib import messages

1{% if messages %}
2<ul class="messages">
3    {% for message in messages %}
4    <li{% if message.tags %} class="{{ message.tags }}"{% endif %}>
5        {% if message.level == DEFAULT_MESSAGE_LEVELS.ERROR %}Important: {% endif %}
6        {{ message }}
7    </li>
8    {% endfor %}
9</ul>
10{% endif %}
11

1from django.contrib import messages
2
3<--Change setting under settings.py
4from django.contrib.messages import constants as messages
5MESSAGE_TAGS = {
6    messages.ERROR: 'danger'
7}
8-->
9
10{% for message in messages %}
11<div class="alert alert-{{ message.tags }} mb-0 alert-dismissible fade show" role="alert">
12  <strong>Message: </strong> {{ message }}
13  <button type="button" class="close" data-dismiss="alert" aria-label="Close">
14    <span aria-hidden="true">&times;</span>
15  </button>
16</div>
17{% endfor %}
18
19
20<--Add message
21messages.debug(request, '%s SQL statements were executed.' % count)
22messages.info(request, 'Three credits remain in your account.')
23messages.success(request, 'Profile details updated.')
24messages.warning(request, 'Your account expires in three days.')
25messages.error(request, 'Document deleted.')
26-->

1{% if messages %}
2<ul class="messages">
3    {% for message in messages %}
4    <li{% if message.tags %} class="{{ message.tags }}"{% endif %}>{{ message }}</li>
5    {% endfor %}
6</ul>
7{% endif %}
8

1{% if messages %}
2    {% for message in messages %}
3    <p id="messages">{{message}}</p>
4    {% endfor %}
5{% endif %}

1from django.contrib import messages
2messages.add_message(request, messages.INFO, 'Hello world.')
3

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