def edit(self, request, id):
"""Render a form to edit an object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
form = (self.form or generate_form(self.model))(instance=object)
# Add "_method" field to override request method to PUT
form.fields['_method'] = CharField(required=True,
initial='PUT',
widget=HiddenInput)
return self._render(request=request,
template='edit',
context={
cc2us(self.model.__name__): object,
'form': form
},
status=200)
def edit(self, request, id):
"""Render a form to edit an object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(
request = request,
template = '404',
context = {
'error': 'The %s could not be found.' % self.model.__name__.lower()
},
status = 404,
prefix_template_path = False
)
form = (self.form or generate_form(self.model))(instance=object)
# Add "_method" field to override request method to PUT
form.fields['_method'] = CharField(required=True, initial='PUT', widget=HiddenInput)
return self._render(
request = request,
template = 'edit',
context = {
cc2us(self.model.__name__): object,
'form': form
},
status = 200
)
def index(self, request):
"""Render a list of objects."""
objects = self.model.objects.all()
return self._render(
request=request, template="index", context={cc2us(pluralize(self.model.__name__)): objects}, status=200
)
def index(self, request):
"""Render a list of objects."""
objects = self.model.objects.all()
return self._render(request=request,
template='index',
context={
cc2us(pluralize(self.model.__name__)): objects,
},
status=200)
def create(self, request):
"""Create a new object."""
form = (self.form or generate_form(self.model))(request.POST)
if form.is_valid():
object = form.save()
return self._render(request=request,
template='show',
context={cc2us(self.model.__name__): object},
status=201)
else:
return self._render(request=request,
template='new',
context={'form': form},
status=400)
def show(self, request, id):
"""Render a single object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
return self._render(request=request,
template='show',
context={cc2us(self.model.__name__): object},
status=200)
def create(self, request):
"""Create a new object."""
form = (self.form or generate_form(self.model))(request.POST)
if form.is_valid():
object = form.save()
response = HttpResponse(status=303)
response['Location'] = reverse(
viewname = '%s_%s' % (self.model._meta.app_label, cc2us(self.model.__name__)),
args = [object.id]
)
return response
else:
return self._render(
request = request,
template = 'new',
context = {
'form': form
},
status = 400
)
def show(self, request, id):
"""Render a single object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(
request = request,
template = '404',
context = {
'error': 'The %s could not be found.' % self.model.__name__.lower()
},
status = 404,
prefix_template_path = False
)
return self._render(
request = request,
template = 'show',
context = {
cc2us(self.model.__name__): object
},
status = 200
)
def create(self, request):
"""Create a new object."""
form = (self.form or generate_form(self.model))(request.POST)
if form.is_valid():
object = form.save()
return self._render(
request = request,
template = 'show',
context = {
cc2us(self.model.__name__): object
},
status = 201
)
else:
return self._render(
request = request,
template = 'new',
context = {
'form': form
},
status = 400
)
class Resource(object):
"""
A collection of views that facilitate for common features.
:attribute model: A reference to a model.
:attribute form: A reference to a form, or ``None`` to generate one automatically.
"""
model = None
form = None
@route(regex=lambda prefix: r'^%s(?:$|index%s$)' %
(prefix, templates.format),
method='GET',
name=lambda views: pluralize(cc2us(views.model.__name__)))
def index(self, request):
"""Render a list of objects."""
objects = self.model.objects.all()
return self._render(request=request,
template='index',
context={
cc2us(pluralize(self.model.__name__)): objects,
},
status=200)
@route(regex=lambda prefix: r'^%s(?P<id>[0-9]+)%s$' %
(prefix, templates.format),
method='GET',
name=lambda views: cc2us(views.model.__name__))
def show(self, request, id):
"""Render a single object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
return self._render(request=request,
template='show',
context={self.model.__name__.lower(): object},
status=200)
@route(regex=lambda prefix: r'^%snew%s$' % (prefix, templates.format),
method='GET',
name=lambda views: 'new_%s' % cc2us(views.model.__name__))
def new(self, request):
"""Render a form to create a new object."""
form = (self.form or generate_form(self.model))()
return self._render(request=request,
template='new',
context={'form': form},
status=200)
@route(regex=lambda prefix: r'^%s(?:$|index%s$)' %
(prefix, templates.format),
method='POST',
name=lambda views: pluralize(cc2us(views.model.__name__)))
def create(self, request):
"""Create a new object."""
form = (self.form or generate_form(self.model))(request.POST)
if form.is_valid():
object = form.save()
return self._render(request=request,
template='show',
context={self.model.__name__.lower(): object},
status=201)
else:
return self._render(request=request,
template='new',
context={'form': form},
status=400)
@route(regex=lambda prefix: r'^%s(?P<id>[0-9]+)/edit%s$' %
(prefix, templates.format),
method='GET',
name=lambda views: 'edit_%s' % cc2us(views.model.__name__))
def edit(self, request, id):
"""Render a form to edit an object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
form = (self.form or generate_form(self.model))(instance=object)
# Add "_method" field to override request method to PUT
form.fields['_method'] = CharField(required=True,
initial='PUT',
widget=HiddenInput)
return self._render(request=request,
template='edit',
context={
self.model.__name__.lower(): object,
'form': form
},
status=200)
@route(regex=lambda prefix: r'^%s(?P<id>[0-9]+)%s$' %
(prefix, templates.format),
method='PATCH',
name=lambda views: cc2us(views.model.__name__))
def update(self, request, id):
"""Update an object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
fields = []
for field in request.PATCH:
try:
self.model._meta.get_field_by_name(field)
except FieldDoesNotExist:
continue
else:
fields.append(field)
Form = generate_form(model=self.model, form=self.form, fields=fields)
form = Form(request.PATCH, instance=object)
if form.is_valid():
object = form.save()
return self.show(request, id)
else:
return self._render(request=request,
template='edit',
context={'form': form},
status=400)
@route(regex=lambda prefix: r'^%s(?P<id>[0-9]+)%s$' %
(prefix, templates.format),
method='PUT',
name=lambda views: cc2us(views.model.__name__))
def replace(self, request, id):
"""Replace an object."""
try:
object = self.model.objects.get(id=id)
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
form = (self.form or generate_form(self.model))(request.PUT,
instance=object)
if form.is_valid():
object = form.save()
return self.show(request, id)
else:
return self._render(request=request,
template='edit',
context={'form': form},
status=400)
@route(regex=lambda prefix: r'^%s(?P<id>[0-9]+)%s$' %
(prefix, templates.format),
method='DELETE',
name=lambda views: cc2us(views.model.__name__))
def destroy(self, request, id):
"""Delete an object."""
try:
object = self.model.objects.get(id=id)
object.delete()
except self.model.DoesNotExist:
return self._render(request=request,
template='404',
context={
'error':
'The %s could not be found.' %
self.model.__name__.lower()
},
status=404,
prefix_template_path=False)
return self._render(request=request, template='destroy', status=200)
routes = [
index.route, show.route, new.route, create.route, edit.route,
update.route, replace.route, destroy.route
]
method -- A string describing the HTTP method that this action accepts.
name -- A string describing the name of the URL pattern, or a function that accepts
the parent resource's 'views' argument and returns it.
"""
self.regex = regex
self.view = view
self.method = method
self.name = name
route = Route
index = route(
regex = lambda prefix: r'^%s(?:$|index(?:\.[a-zA-Z]+)?$)' % prefix,
view = 'index',
method = 'GET',
name = lambda views: '%s_%s' % (views.model._meta.app_label, pluralize(cc2us(views.model.__name__)))
)
create = route(
regex = lambda prefix: r'^%s(?:$|index(?:\.[a-zA-Z]+)?$)' % prefix,
view = 'create',
method = 'POST',
name = lambda views: '%s_%s' % (views.model._meta.app_label, pluralize(cc2us(views.model.__name__)))
)
show = route(
regex = lambda prefix: r'^%s(?P<id>[0-9]+)(?:\.[a-zA-Z]+)?$' % prefix,
view = 'show',
method = 'GET',
name = lambda views: '%s_%s' % (views.model._meta.app_label, cc2us(views.model.__name__))
)
