Python django.utils.decorators 模块，available_attrs() 实例源码

我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用django.utils.decorators.available_attrs()。

项目：CodingDojo 作者：ComputerSocietyUNB | 项目源码 | 文件源码

def vary_on_headers(*headers):
    """
    A view decorator that adds the specified headers to the Vary header of the
    response. Usage:

       @vary_on_headers('Cookie', 'Accept-language')
       def index(request):
           ...

    Note that the header names are not case-sensitive.
    """
    def decorator(func):
        @wraps(func, assigned=available_attrs(func))
        def inner_func(*args, **kwargs):
            response = func(*args, **kwargs)
            patch_vary_headers(response, headers)
            return response
        return inner_func
    return decorator

项目：CodingDojo 作者：ComputerSocietyUNB | 项目源码 | 文件源码

def xframe_options_deny(view_func):
    """
    Modifies a view function so its response has the X-Frame-Options HTTP
    header set to 'DENY' as long as the response doesn't already have that
    header set.

    e.g.

    @xframe_options_deny
    def some_view(request):
        ...
    """
    def wrapped_view(*args, **kwargs):
        resp = view_func(*args, **kwargs)
        if resp.get('X-Frame-Options') is None:
            resp['X-Frame-Options'] = 'DENY'
        return resp
    return wraps(view_func, assigned=available_attrs(view_func))(wrapped_view)

项目：CodingDojo 作者：ComputerSocietyUNB | 项目源码 | 文件源码

def xframe_options_sameorigin(view_func):
    """
    Modifies a view function so its response has the X-Frame-Options HTTP
    header set to 'SAMEORIGIN' as long as the response doesn't already have
    that header set.

    e.g.

    @xframe_options_sameorigin
    def some_view(request):
        ...
    """
    def wrapped_view(*args, **kwargs):
        resp = view_func(*args, **kwargs)
        if resp.get('X-Frame-Options') is None:
            resp['X-Frame-Options'] = 'SAMEORIGIN'
        return resp
    return wraps(view_func, assigned=available_attrs(view_func))(wrapped_view)

项目：CodingDojo 作者：ComputerSocietyUNB | 项目源码 | 文件源码

def xframe_options_exempt(view_func):
    """
    Modifies a view function by setting a response variable that instructs
    XFrameOptionsMiddleware to NOT set the X-Frame-Options HTTP header.

    e.g.

    @xframe_options_exempt
    def some_view(request):
        ...
    """
    def wrapped_view(*args, **kwargs):
        resp = view_func(*args, **kwargs)
        resp.xframe_options_exempt = True
        return resp
    return wraps(view_func, assigned=available_attrs(view_func))(wrapped_view)

项目：NarshaTech 作者：KimJangHyeon | 项目源码 | 文件源码

def convert_exception_to_response(get_response):
    """
    Wrap the given get_response callable in exception-to-response conversion.

    All exceptions will be converted. All known 4xx exceptions (Http404,
    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
    converted to the appropriate response, and all other exceptions will be
    converted to 500 responses.

    This decorator is automatically applied to all middleware to ensure that
    no middleware leaks an exception and that the next middleware in the stack
    can rely on getting a response instead of an exception.
    """
    @wraps(get_response, assigned=available_attrs(get_response))
    def inner(request):
        try:
            response = get_response(request)
        except Exception as exc:
            response = response_for_exception(request, exc)
        return response
    return inner

项目：tecken 作者：mozilla-services | 项目源码 | 文件源码

def api_require_http_methods(request_method_list):
    """
    This is copied verbatim from django.views.decorators.require_http_methods
    *except* it changes which HTTP response class to return.
    All of this just to make it possible to always return a JSON response
    when the request method is not allowed.
    Also, it's changed to use the f'' string format.
    """
    def decorator(func):
        @wraps(func, assigned=available_attrs(func))
        def inner(request, *args, **kwargs):
            if request.method not in request_method_list:
                message = (
                    f'Method Not Allowed ({request.method}): {request.path}'
                )
                logger.warning(
                    message,
                    extra={'status_code': 405, 'request': request}
                )
                return JsonHttpResponseNotAllowed(request_method_list, {
                    'error': message,
                })
            return func(request, *args, **kwargs)
        return inner
    return decorator

项目：Scrum 作者：prakharchoudhary | 项目源码 | 文件源码

def convert_exception_to_response(get_response):
    """
    Wrap the given get_response callable in exception-to-response conversion.

    All exceptions will be converted. All known 4xx exceptions (Http404,
    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
    converted to the appropriate response, and all other exceptions will be
    converted to 500 responses.

    This decorator is automatically applied to all middleware to ensure that
    no middleware leaks an exception and that the next middleware in the stack
    can rely on getting a response instead of an exception.
    """
    @wraps(get_response, assigned=available_attrs(get_response))
    def inner(request):
        try:
            response = get_response(request)
        except Exception as exc:
            response = response_for_exception(request, exc)
        return response
    return inner

项目：django 作者：alexsukhrin | 项目源码 | 文件源码

def convert_exception_to_response(get_response):
    """
    Wrap the given get_response callable in exception-to-response conversion.

    All exceptions will be converted. All known 4xx exceptions (Http404,
    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
    converted to the appropriate response, and all other exceptions will be
    converted to 500 responses.

    This decorator is automatically applied to all middleware to ensure that
    no middleware leaks an exception and that the next middleware in the stack
    can rely on getting a response instead of an exception.
    """
    @wraps(get_response, assigned=available_attrs(get_response))
    def inner(request):
        try:
            response = get_response(request)
        except Exception as exc:
            response = response_for_exception(request, exc)
        return response
    return inner

项目：nrp 作者：django-rea | 项目源码 | 文件源码

def login_required(func=None, redirect_field_name="next", login_url=None):
    """
    Decorator for views that checks that the user is logged in, redirecting
    to the log in page if necessary.
    """
    def decorator(view_func):
        @functools.wraps(view_func, assigned=available_attrs(view_func))
        def _wrapped_view(request, *args, **kwargs):
            if request.user.is_authenticated():
                return view_func(request, *args, **kwargs)
            return handle_redirect_to_login(
                request,
                redirect_field_name=redirect_field_name,
                login_url=login_url
            )
        return _wrapped_view
    if func:
        return decorator(func)
    return decorator

项目：wagtail_room_booking 作者：Tamriel | 项目源码 | 文件源码

def login_required(func=None, redirect_field_name="next", login_url=None):
    """
    Decorator for views that checks that the user is logged in, redirecting
    to the log in page if necessary.
    """
    def decorator(view_func):
        @functools.wraps(view_func, assigned=available_attrs(view_func))
        def _wrapped_view(request, *args, **kwargs):
            if request.user.is_authenticated():
                return view_func(request, *args, **kwargs)
            return handle_redirect_to_login(
                request,
                redirect_field_name=redirect_field_name,
                login_url=login_url
            )
        return _wrapped_view
    if func:
        return decorator(func)
    return decorator

项目：tumanov_castleoaks 作者：Roamdev | 项目源码 | 文件源码

def profile(simple=None, **params):
    """
        ????????? ??? ?????????????? ???????.

        ??????:
            @profile(sql=True)
            def test(*args, **kwargs):
                ...
    """
    def decorator(func):
        @wraps(func, assigned=available_attrs(func))
        def inner(*args, **kwargs):
            func_fullname = '%s.%s' % (func.__module__, func.__qualname__)
            with Profile(func_fullname, **params):
                result = func(*args, **kwargs)
            return result
        return inner
    return decorator(simple) if simple else decorator

项目：Gypsy 作者：benticarlos | 项目源码 | 文件源码

def convert_exception_to_response(get_response):
    """
    Wrap the given get_response callable in exception-to-response conversion.

    All exceptions will be converted. All known 4xx exceptions (Http404,
    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
    converted to the appropriate response, and all other exceptions will be
    converted to 500 responses.

    This decorator is automatically applied to all middleware to ensure that
    no middleware leaks an exception and that the next middleware in the stack
    can rely on getting a response instead of an exception.
    """
    @wraps(get_response, assigned=available_attrs(get_response))
    def inner(request):
        try:
            response = get_response(request)
        except Exception as exc:
            response = response_for_exception(request, exc)
        return response
    return inner

项目：django-qr-code 作者：dprog-philippe-docourt | 项目源码 | 文件源码

def cache_qr_code():
    """
    Decorator that caches the requested page if a settings named 'QR_CODE_CACHE_ALIAS' exists and is not empty or None.
    """
    def decorator(view_func):
        @wraps(view_func, assigned=available_attrs(view_func))
        def _wrapped_view(request, *view_args, **view_kwargs):
            cache_enabled = request.GET.get('cache_enabled', True)
            if cache_enabled and hasattr(settings, 'QR_CODE_CACHE_ALIAS') and settings.QR_CODE_CACHE_ALIAS:
                # We found a cache alias for storing the generate qr code and cache is enabled, use it to cache the
                # page.
                timeout = settings.CACHES[settings.QR_CODE_CACHE_ALIAS]['TIMEOUT']
                response = cache_page(timeout, cache=settings.QR_CODE_CACHE_ALIAS)(view_func)(request, *view_args, **view_kwargs)
            else:
                # No cache alias for storing the generated qr code, call the view as is.
                response = (view_func)(request, *view_args, **view_kwargs)
            return response
        return _wrapped_view
    return decorator

项目：fieldsight-kobocat 作者：awemulya | 项目源码 | 文件源码

def is_owner(view_func):
    @wraps(view_func, assigned=available_attrs(view_func))
    def _wrapped_view(request, *args, **kwargs):
        # assume username is first arg
        if request.user.is_authenticated():
            if request.user.username == kwargs['username']:
                return view_func(request, *args, **kwargs)
            protocol = "https" if request.is_secure() else "http"
            return HttpResponseRedirect("%s://%s" % (protocol,
                                                     request.get_host()))
        path = request.build_absolute_uri()
        login_url = request.build_absolute_uri(settings.LOGIN_URL)
        # If the login url is the same scheme and net location then just
        # use the path as the "next" url.
        login_scheme, login_netloc = urlparse.urlparse(login_url)[:2]
        current_scheme, current_netloc = urlparse.urlparse(path)[:2]
        if ((not login_scheme or login_scheme == current_scheme) and
                (not login_netloc or login_netloc == current_netloc)):
            path = request.get_full_path()
        from django.contrib.auth.views import redirect_to_login
        return redirect_to_login(path, None, REDIRECT_FIELD_NAME)
    return _wrapped_view

项目：esdc-ce 作者：erigones | 项目源码 | 文件源码

def catch_exception(fun):
    """
    Used as decorator to catch all exceptions and log them without breaking the inner function.
    Can be disabled by using the fail_silently keyword argument, which won't be passed to inner function.
    """
    @wraps(fun, assigned=available_attrs(fun))
    def wrap(*args, **kwargs):
        if kwargs.pop('fail_silently', True):
            try:
                return fun(*args, **kwargs)
            except Exception as e:
                logger.exception(e)
                logger.error('Got exception when running %s(%s, %s): %s.', fun.__name__, args, kwargs, e)
        else:
            return fun(*args, **kwargs)

    return wrap

项目：esdc-ce 作者：erigones | 项目源码 | 文件源码

def catch_api_exception(fun):
    """
    Like catch_exception above, but it logs the exception caught.
    """
    from api.task.utils import task_log_exception  # circular imports

    @wraps(fun, assigned=available_attrs(fun))
    def wrap(*args, **kwargs):
        try:
            return fun(*args, **kwargs)
        except Exception as e:
            logger.exception(e)
            logger.error('Got exception when running %s(%s, %s): %s.', fun.__name__, args, kwargs, e)

            for arg in args:
                if is_request(arg):
                    try:
                        task_log_exception(arg, e, task_id=getattr(e, 'task_id', None))
                    except Exception as exc:
                        logger.exception(exc)
                    break
            else:
                logger.warning('API exception could not be logged into task log')

    return wrap

项目：django-sphinxdoc 作者：luminum-solutions | 项目源码 | 文件源码

def user_allowed_for_project(view_func):
    """
    Check that the user is allowed for the project.

    If the user is not allowed, the view will be redirected to the standard
    login page.
    """
    @wraps(view_func, assigned=available_attrs(view_func))
    def _wrapped_view(request, *args, **kwargs):
        try:
            slug = kwargs['slug']
        except IndexError:
            raise ImproperlyConfigured
        project = get_object_or_404(Project, slug=slug)
        if project.is_allowed(request.user):
            return view_func(request, *args, **kwargs)
        if request.user.is_authenticated():
            raise PermissionDenied
        path = request.build_absolute_uri()
        return redirect_to_login(path)
    return _wrapped_view

项目：ims 作者：ims-team | 项目源码 | 文件源码

def convert_exception_to_response(get_response):
    """
    Wrap the given get_response callable in exception-to-response conversion.

    All exceptions will be converted. All known 4xx exceptions (Http404,
    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
    converted to the appropriate response, and all other exceptions will be
    converted to 500 responses.

    This decorator is automatically applied to all middleware to ensure that
    no middleware leaks an exception and that the next middleware in the stack
    can rely on getting a response instead of an exception.
    """
    @wraps(get_response, assigned=available_attrs(get_response))
    def inner(request):
        try:
            response = get_response(request)
        except Exception as exc:
            response = response_for_exception(request, exc)
        return response
    return inner