from django.contrib import messages
{% if messages %}
{% for message in messages %}
<p id="messages">{{message}}</p>
{% endfor %}
{% endif %}from django.contrib import messages
{% if messages %}
{% for message in messages %}
<p id="messages">{{message}}</p>
{% endfor %}
{% endif %}django.contrib.messages
from django.contrib.messages import constants
from django.contrib.messages.storage import default_storage
__all__ = (
'add_message', 'get_messages',
'get_level', 'set_level',
'debug', 'info', 'success', 'warning', 'error',
'MessageFailure',
)
class MessageFailure(Exception):
pass
[docs]def add_message(request, level, message, extra_tags='', fail_silently=False):
"""
Attempt to add a message to the request using the 'messages' app.
"""
try:
messages = request._messages
except AttributeError:
if not hasattr(request, 'META'):
raise TypeError(
"add_message() argument must be an HttpRequest object, not "
"'%s'." % request.__class__.__name__
)
if not fail_silently:
raise MessageFailure(
'You cannot add messages without installing '
'django.contrib.messages.middleware.MessageMiddleware'
)
else:
return messages.add(level, message, extra_tags)
[docs]def get_messages(request):
"""
Return the message storage on the request if it exists, otherwise return
an empty list.
"""
return getattr(request, '_messages', [])
def get_level(request):
"""
Return the minimum level of messages to be recorded.
The default level is the ``MESSAGE_LEVEL`` setting. If this is not found,
use the ``INFO`` level.
"""
storage = getattr(request, '_messages', default_storage(request))
return storage.level
def set_level(request, level):
"""
Set the minimum level of messages to be recorded, and return ``True`` if
the level was recorded successfully.
If set to ``None``, use the default level (see the get_level() function).
"""
if not hasattr(request, '_messages'):
return False
request._messages.level = level
return True
def debug(request, message, extra_tags='', fail_silently=False):
"""Add 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):
"""Add 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):
"""Add 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):
"""Add 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):
"""Add a message with the ``ERROR`` level."""
add_message(request, constants.ERROR, message, extra_tags=extra_tags,
fail_silently=fail_silently)Copyright © 2021 Codeinu
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