class FormView
from django.views.generic import FormView
A view for displaying a form and rendering a template response.
Ancestors (MRO)
Attributes
Defined in | |
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content_type = None
|
TemplateResponseMixin |
extra_context = None
|
ContextMixin |
form_class = None
|
FormMixin |
http_method_names = ['get', 'post', 'put', 'patch', 'delete', 'head', 'options', 'trace']
|
View |
initial = {}
|
FormMixin |
prefix = None
|
FormMixin |
response_class = <class 'django.template.response.TemplateResponse'>
|
TemplateResponseMixin |
success_url = None
|
FormMixin |
template_engine = None
|
TemplateResponseMixin |
template_name = None
|
TemplateResponseMixin |
Methods
def
__init__(self, **kwargs):
View
¶
def
__init__(self, **kwargs):
View
¶
Constructor. Called in the URLconf; can contain helpful extra keyword arguments, and other things.
38 39 40 41 42 43 44 45 46 | def __init__(self, **kwargs): """ Constructor. Called in the URLconf; can contain helpful extra keyword arguments, and other things. """ # Go through keyword arguments, and either save their values to our # instance, or raise an error. for key, value in kwargs.items(): setattr(self, key, value) |
def
_allowed_methods(self):
View
¶
def
_allowed_methods(self):
View
¶
104 105 | def _allowed_methods(self): return [m.upper() for m in self.http_method_names if hasattr(self, m)] |
def
as_view(cls, **initkwargs):
View
¶
def
as_view(cls, **initkwargs):
View
¶
Main entry point for a request-response process.
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 | @classonlymethod def as_view(cls, **initkwargs): """Main entry point for a request-response process.""" for key in initkwargs: if key in cls.http_method_names: raise TypeError("You tried to pass in the %s method name as a " "keyword argument to %s(). Don't do that." % (key, cls.__name__)) if not hasattr(cls, key): raise TypeError("%s() received an invalid keyword %r. as_view " "only accepts arguments that are already " "attributes of the class." % (cls.__name__, key)) def view(request, *args, **kwargs): self = cls(**initkwargs) if hasattr(self, 'get') and not hasattr(self, 'head'): self.head = self.get self.request = request self.args = args self.kwargs = kwargs return self.dispatch(request, *args, **kwargs) view.view_class = cls view.view_initkwargs = initkwargs # take name and docstring from class update_wrapper(view, cls, updated=()) # and possible attributes set by decorators # like csrf_exempt from dispatch update_wrapper(view, cls.dispatch, assigned=()) return view |
def
dispatch(self, request, *args, **kwargs):
View
¶
def
dispatch(self, request, *args, **kwargs):
View
¶
80 81 82 83 84 85 86 87 88 | def dispatch(self, request, *args, **kwargs): # Try to dispatch to the right method; if a method doesn't exist, # defer to the error handler. Also defer to the error handler if the # request method isn't on the approved list. if request.method.lower() in self.http_method_names: handler = getattr(self, request.method.lower(), self.http_method_not_allowed) else: handler = self.http_method_not_allowed return handler(request, *args, **kwargs) |
def
form_invalid(self, form):
FormMixin
¶
def
form_invalid(self, form):
FormMixin
¶
If the form is invalid, render the invalid form.
59 60 61 | def form_invalid(self, form): """If the form is invalid, render the invalid form.""" return self.render_to_response(self.get_context_data(form=form)) |
def
form_valid(self, form):
FormMixin
¶
def
form_valid(self, form):
FormMixin
¶
If the form is valid, redirect to the supplied URL.
55 56 57 | def form_valid(self, form): """If the form is valid, redirect to the supplied URL.""" return HttpResponseRedirect(self.get_success_url()) |
def
get(self, request, *args, **kwargs):
ProcessFormView
¶
def
get(self, request, *args, **kwargs):
ProcessFormView
¶
Handle GET requests: instantiate a blank version of the form.
131 132 133 | def get(self, request, *args, **kwargs): """Handle GET requests: instantiate a blank version of the form.""" return self.render_to_response(self.get_context_data()) |
def
get_context_data(self, **kwargs):
¶
def
get_context_data(self, **kwargs):
¶
FormMixin
Insert the form into the context dict.
63 64 65 66 67 | def get_context_data(self, **kwargs): """Insert the form into the context dict.""" if 'form' not in kwargs: kwargs['form'] = self.get_form() return super().get_context_data(**kwargs) |
ContextMixin
23 24 25 26 27 | def get_context_data(self, **kwargs): kwargs.setdefault('view', self) if self.extra_context is not None: kwargs.update(self.extra_context) return kwargs |
def
get_form(self, form_class=None):
FormMixin
¶
def
get_form(self, form_class=None):
FormMixin
¶
Return an instance of the form to be used in this view.
29 30 31 32 33 | def get_form(self, form_class=None): """Return an instance of the form to be used in this view.""" if form_class is None: form_class = self.get_form_class() return form_class(**self.get_form_kwargs()) |
def
get_form_class(self):
FormMixin
¶
def
get_form_class(self):
FormMixin
¶
Return the form class to use.
25 26 27 | def get_form_class(self): """Return the form class to use.""" return self.form_class |
def
get_form_kwargs(self):
FormMixin
¶
def
get_form_kwargs(self):
FormMixin
¶
Return the keyword arguments for instantiating the form.
35 36 37 38 39 40 41 42 43 44 45 46 | def get_form_kwargs(self): """Return the keyword arguments for instantiating the form.""" kwargs = { 'initial': self.get_initial(), 'prefix': self.get_prefix(), } if self.request.method in ('POST', 'PUT'): kwargs.update({ 'data': self.request.POST, 'files': self.request.FILES, }) return kwargs |
def
get_initial(self):
FormMixin
¶
def
get_initial(self):
FormMixin
¶
Return the initial data to use for forms on this view.
17 18 19 | def get_initial(self): """Return the initial data to use for forms on this view.""" return self.initial.copy() |
def
get_prefix(self):
FormMixin
¶
def
get_prefix(self):
FormMixin
¶
Return the prefix to use for forms.
21 22 23 | def get_prefix(self): """Return the prefix to use for forms.""" return self.prefix |
def
get_success_url(self):
FormMixin
¶
def
get_success_url(self):
FormMixin
¶
Return the URL to redirect to after processing a valid form.
49 50 51 52 53 | def get_success_url(self): """Return the URL to redirect to after processing a valid form.""" if not self.success_url: raise ImproperlyConfigured("No URL to redirect to. Provide a success_url.") return str(self.success_url) # success_url may be lazy |
def
get_template_names(self):
TemplateResponseMixin
¶
def
get_template_names(self):
TemplateResponseMixin
¶
Return a list of template names to be used for the request. Must return a list. May not be called if render_to_response() is overridden.
131 132 133 134 135 136 137 138 139 140 141 | def get_template_names(self): """ Return a list of template names to be used for the request. Must return a list. May not be called if render_to_response() is overridden. """ if self.template_name is None: raise ImproperlyConfigured( "TemplateResponseMixin requires either a definition of " "'template_name' or an implementation of 'get_template_names()'") else: return [self.template_name] |
def
http_method_not_allowed(self, request, *args, **kwargs):
View
¶
def
http_method_not_allowed(self, request, *args, **kwargs):
View
¶
90 91 92 93 94 95 | def http_method_not_allowed(self, request, *args, **kwargs): logger.warning( 'Method Not Allowed (%s): %s', request.method, request.path, extra={'status_code': 405, 'request': request} ) return HttpResponseNotAllowed(self._allowed_methods()) |
def
options(self, request, *args, **kwargs):
View
¶
def
options(self, request, *args, **kwargs):
View
¶
Handle responding to requests for the OPTIONS HTTP verb.
97 98 99 100 101 102 | def options(self, request, *args, **kwargs): """Handle responding to requests for the OPTIONS HTTP verb.""" response = HttpResponse() response['Allow'] = ', '.join(self._allowed_methods()) response['Content-Length'] = '0' return response |
def
post(self, request, *args, **kwargs):
ProcessFormView
¶
def
post(self, request, *args, **kwargs):
ProcessFormView
¶
Handle POST requests: instantiate a form instance with the passed POST variables and then check if it's valid.
135 136 137 138 139 140 141 142 143 144 | def post(self, request, *args, **kwargs): """ Handle POST requests: instantiate a form instance with the passed POST variables and then check if it's valid. """ form = self.get_form() if form.is_valid(): return self.form_valid(form) else: return self.form_invalid(form) |
def
put(self, *args, **kwargs):
ProcessFormView
¶
def
put(self, *args, **kwargs):
ProcessFormView
¶
148 149 | def put(self, *args, **kwargs): return self.post(*args, **kwargs) |
def
render_to_response(self, context, **response_kwargs):
TemplateResponseMixin
¶
def
render_to_response(self, context, **response_kwargs):
TemplateResponseMixin
¶
Return a response, using the `response_class` for this view, with a template rendered with the given context. Pass response_kwargs to the constructor of the response class.
115 116 117 118 119 120 121 122 123 124 125 126 127 128 | def render_to_response(self, context, **response_kwargs): """ Return a response, using the `response_class` for this view, with a template rendered with the given context. Pass response_kwargs to the constructor of the response class. """ response_kwargs.setdefault('content_type', self.content_type) return self.response_class( request=self.request, template=self.get_template_names(), context=context, using=self.template_engine, **response_kwargs ) |