def process_request(self, request):
"""
Gets the current user from the request and prepares and connects a signal receiver with the user already
attached to it.
"""
# Initialize thread local storage
threadlocal.actionslog = {
'signal_duid': (self.__class__, time.time()),
'remote_ip': request.META.get('REMOTE_ADDR'),
}
# In case of proxy, set 'original' address
if request.META.get('HTTP_X_FORWARDED_FOR'):
threadlocal.actionslog['remote_ip'] = request.META.get('HTTP_X_FORWARDED_FOR').split(',')[0]
# Connect signal for automatic logging
if hasattr(request, 'user') and hasattr(request.user, 'is_authenticated') and request.user.is_authenticated():
set_user = curry(self.set_user, request.user)
pre_save.connect(set_user, sender=LogAction, dispatch_uid=threadlocal.actionslog['signal_duid'], weak=False)
python类curry()的实例源码
def contribute_to_class(self, cls, name, **kwargs):
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.remote_field.symmetrical and (
self.remote_field.model == "self" or self.remote_field.model == cls._meta.object_name):
self.remote_field.related_name = "%s_rel_+" % name
elif self.remote_field.is_hidden():
# If the backwards relation is disabled, replace the original
# related_name with one generated from the m2m field name. Django
# still uses backwards relations internally and we need to avoid
# clashes between multiple m2m fields with related_name == '+'.
self.remote_field.related_name = "_%s_%s_+" % (cls.__name__.lower(), name)
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
# 3) The class owning the m2m field has been swapped out.
if not cls._meta.abstract:
if self.remote_field.through:
def resolve_through_model(_, model, field):
field.remote_field.through = model
lazy_related_operation(resolve_through_model, cls, self.remote_field.through, field=self)
elif not cls._meta.swapped:
self.remote_field.through = create_many_to_many_intermediary_model(self, cls)
# Add the descriptor for the m2m relation.
setattr(cls, self.name, ManyToManyDescriptor(self.remote_field, reverse=False))
# Set up the accessor for the m2m table name for the relation.
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def context_tag(self, func):
params, xx, xxx, defaults = getargspec(func)
class ContextNode(Node):
def __init__(self, vars_to_resolve):
self.vars_to_resolve = map(Variable, vars_to_resolve)
def render(self, context):
resolved_vars = [var.resolve(context) for var in self.vars_to_resolve]
return func(context, *resolved_vars)
params = params[1:]
compile_func = curry(generic_tag_compiler, params, defaults, getattr(func, "_decorated_function", func).__name__, ContextNode)
compile_func.__doc__ = func.__doc__
self.tag(getattr(func, "_decorated_function", func).__name__, compile_func)
return func
# The following defines a template loader that loads templates from a specific
# app based on the prefix of the template path:
# get_template("app/template.html") => app/templates/template.html
# This keeps the code DRY and prevents name clashes.
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.remote_field.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyToManyDescriptor(self.remote_field, reverse=True))
# Set up the accessors for the column names on the m2m table.
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'remote_field')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'remote_field')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def contribute_to_related_class(self, cls, related):
# Internal M2Ms (i.e., those with a related name ending with '+')
# and swapped models don't get a related descriptor.
if not self.rel.is_hidden() and not related.related_model._meta.swapped:
setattr(cls, related.get_accessor_name(), ManyRelatedObjectsDescriptor(related))
# Set up the accessors for the column names on the m2m table
self.m2m_column_name = curry(self._get_m2m_attr, related, 'column')
self.m2m_reverse_name = curry(self._get_m2m_reverse_attr, related, 'column')
self.m2m_field_name = curry(self._get_m2m_attr, related, 'name')
self.m2m_reverse_field_name = curry(self._get_m2m_reverse_attr, related, 'name')
get_m2m_rel = curry(self._get_m2m_attr, related, 'rel')
self.m2m_target_field_name = lambda: get_m2m_rel().field_name
get_m2m_reverse_rel = curry(self._get_m2m_reverse_attr, related, 'rel')
self.m2m_reverse_target_field_name = lambda: get_m2m_reverse_rel().field_name
def _prepare(cls):
"""
Creates some methods once self._meta has been populated.
"""
opts = cls._meta
opts._prepare(cls)
if opts.order_with_respect_to:
cls.get_next_in_order = curry(cls._get_next_or_previous_in_order, is_next=True)
cls.get_previous_in_order = curry(cls._get_next_or_previous_in_order, is_next=False)
# Defer creating accessors on the foreign class until it has been
# created and registered. If remote_field is None, we're ordering
# with respect to a GenericForeignKey and don't know what the
# foreign class is - we'll add those accessors later in
# contribute_to_class().
if opts.order_with_respect_to.remote_field:
wrt = opts.order_with_respect_to
remote = wrt.remote_field.model
lazy_related_operation(make_foreign_order_accessors, cls, remote)
# Give the class a docstring -- its definition.
if cls.__doc__ is None:
cls.__doc__ = "%s(%s)" % (cls.__name__, ", ".join(f.name for f in opts.fields))
get_absolute_url_override = settings.ABSOLUTE_URL_OVERRIDES.get(opts.label_lower)
if get_absolute_url_override:
setattr(cls, 'get_absolute_url', get_absolute_url_override)
ensure_default_manager(cls)
signals.class_prepared.send(sender=cls)
def make_foreign_order_accessors(model, related_model):
setattr(
related_model,
'get_%s_order' % model.__name__.lower(),
curry(method_get_order, model)
)
setattr(
related_model,
'set_%s_order' % model.__name__.lower(),
curry(method_set_order, model)
)
########
# MISC #
########
def contribute_to_class(self, cls, name, **kwargs):
if not self.sorted:
return super(SortedManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.rel.symmetrical and (self.rel.to == "self" or self.rel.to == cls._meta.object_name):
self.rel.related_name = "%s_rel_+" % name
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
if not self.rel.through and not cls._meta.abstract:
self.rel.through = self.create_intermediate_model(cls)
# Add the descriptor for the m2m relation
setattr(cls, self.name, SortedManyToManyDescriptor(self))
# Set up the accessor for the m2m table name for the relation
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
# Populate some necessary rel arguments so that cross-app relations
# work correctly.
if isinstance(self.rel.through, six.string_types):
def resolve_through_model(field, model, cls):
field.rel.through = model
add_lazy_relation(cls, self, self.rel.through, resolve_through_model)
if hasattr(cls._meta, 'duplicate_targets'): # Django<1.5
if isinstance(self.rel.to, six.string_types):
target = self.rel.to
else:
target = self.rel.to._meta.db_table
cls._meta.duplicate_targets[self.column] = (target, "m2m")
def __getattr__(self, name):
global size_method_map
if not size_method_map:
init_size_method_map()
di = size_method_map.get(name, None)
if di is not None:
result = curry(getattr(self, di['base_name']), di['size'])
setattr(self, name, result)
return result
else:
raise AttributeError
def add_data(request, pk):
shop = get_object_or_404(Shop, pk=pk, user=request.user)
# Hack to supply additional argument to the AddProdutsShopForm
AddProductsShopFormSet = formset_factory(AddProductsShopForm,
formset=AddProductsShopBaseFormSet)
AddProductsShopFormSet.form = staticmethod(curry(AddProductsShopForm, shop=shop))
formset = AddProductsShopFormSet(request.POST or None)
if request.method == 'POST':
# Set csv file, we later access it in clean method
try:
formset.csv_file = request.session.pop(AddProductsShopForm.CSV_FILE_NAME)
formset.csv_file.shop = shop
except KeyError:
pass
if formset.is_valid():
images = []
data_list = []
for form in formset:
data_list.append(form.cleaned_data)
try:
images.append(request.session.pop('product_%d' % form.cleaned_data['order']))
except KeyError:
pass
response = shop.api.add_product_data(data_list, images)
return HttpResponse(simplejson.dumps({'response': response, 'result': 'success'}))
else:
response = {}
for form in formset:
order = form.data[form.prefix + '-order'][0]
for k, v in form.errors.items():
response['form-%s-%s' % (order, k)] = v
return HttpResponse(simplejson.dumps({'response': response, 'result': 'error'}))
return direct_to_template(request, template="partial/shop_add_products.html",
extra_context={'formset': formset, 'shop': shop})
def contribute_to_class(self, cls, name):
super(Reference, self).contribute_to_class(cls, name)
# Create ReverseReference in the opposite direction unless related_name ends with '+'
if not self.related_name or not self.related_name.endswith('+'):
related_name = self.related_name or '%s_set' % cls.__name__.lower()
reverse_reference = ReverseReference(cls, field_name=self.field_name, one_to_one=self.one_to_one)
setattr_lazy(lambda objref=self._objref: lookup_by_objref(objref),
related_name, reverse_reference)
# Allow direct access to the reference without fetching the instance from the server first
getter = property(curry(self.foo_id_getter, field=self))
setter = getter.setter(curry(self.foo_id_setter, field=self))
setattr(cls, '%s_id' % self.field_name, setter)
def contribute_to_class(self, cls, name, **kwargs):
if not self.sorted:
return super(SortedManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.rel.symmetrical and (self.rel.to == "self" or self.rel.to == cls._meta.object_name):
self.rel.related_name = "%s_rel_+" % name
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
if not self.rel.through and not cls._meta.abstract:
self.rel.through = self.create_intermediate_model(cls)
# Add the descriptor for the m2m relation
setattr(cls, self.name, SortedManyToManyDescriptor(self))
# Set up the accessor for the m2m table name for the relation
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
# Populate some necessary rel arguments so that cross-app relations
# work correctly.
if isinstance(self.rel.through, six.string_types):
def resolve_through_model(field, model, cls):
field.rel.through = model
add_lazy_relation(cls, self, self.rel.through, resolve_through_model)
if hasattr(cls._meta, 'duplicate_targets'): # Django<1.5
if isinstance(self.rel.to, six.string_types):
target = self.rel.to
else:
target = self.rel.to._meta.db_table
cls._meta.duplicate_targets[self.column] = (target, "m2m")
def process_request(self, request):
if request.method not in ('GET', 'HEAD', 'OPTIONS', 'TRACE'):
if hasattr(request, 'user') and request.user.is_authenticated():
user = request.user
else:
user = None
mark_whodid = curry(self.mark_whodid, user)
signals.pre_save.connect(mark_whodid, dispatch_uid=(self.__class__, request,), weak=False)
def __init__(self, cache_fields=()):
super(CacheManager, self).__init__()
for i in cache_fields:
setattr(CacheManager, 'get_by_' + i, curry(CacheManager.__get_by, field=i))
def contribute_to_class(self, cls, name, **kwargs):
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.remote_field.symmetrical and (
self.remote_field.model == "self" or self.remote_field.model == cls._meta.object_name):
self.remote_field.related_name = "%s_rel_+" % name
elif self.remote_field.is_hidden():
# If the backwards relation is disabled, replace the original
# related_name with one generated from the m2m field name. Django
# still uses backwards relations internally and we need to avoid
# clashes between multiple m2m fields with related_name == '+'.
self.remote_field.related_name = "_%s_%s_+" % (cls.__name__.lower(), name)
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
# 3) The class owning the m2m field has been swapped out.
if not cls._meta.abstract:
if self.remote_field.through:
def resolve_through_model(_, model, field):
field.remote_field.through = model
lazy_related_operation(resolve_through_model, cls, self.remote_field.through, field=self)
elif not cls._meta.swapped:
self.remote_field.through = create_many_to_many_intermediary_model(self, cls)
# Add the descriptor for the m2m relation.
setattr(cls, self.name, ManyToManyDescriptor(self.remote_field, reverse=False))
# Set up the accessor for the m2m table name for the relation.
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
def _prepare(cls):
"""
Creates some methods once self._meta has been populated.
"""
opts = cls._meta
opts._prepare(cls)
if opts.order_with_respect_to:
cls.get_next_in_order = curry(cls._get_next_or_previous_in_order, is_next=True)
cls.get_previous_in_order = curry(cls._get_next_or_previous_in_order, is_next=False)
# Defer creating accessors on the foreign class until it has been
# created and registered. If remote_field is None, we're ordering
# with respect to a GenericForeignKey and don't know what the
# foreign class is - we'll add those accessors later in
# contribute_to_class().
if opts.order_with_respect_to.remote_field:
wrt = opts.order_with_respect_to
remote = wrt.remote_field.model
lazy_related_operation(make_foreign_order_accessors, cls, remote)
# Give the class a docstring -- its definition.
if cls.__doc__ is None:
cls.__doc__ = "%s(%s)" % (cls.__name__, ", ".join(f.name for f in opts.fields))
get_absolute_url_override = settings.ABSOLUTE_URL_OVERRIDES.get(opts.label_lower)
if get_absolute_url_override:
setattr(cls, 'get_absolute_url', get_absolute_url_override)
if not opts.managers or cls._requires_legacy_default_manager():
if any(f.name == 'objects' for f in opts.fields):
raise ValueError(
"Model %s must specify a custom Manager, because it has a "
"field named 'objects'." % cls.__name__
)
manager = Manager()
manager.auto_created = True
cls.add_to_class('objects', manager)
signals.class_prepared.send(sender=cls)
def make_foreign_order_accessors(model, related_model):
setattr(
related_model,
'get_%s_order' % model.__name__.lower(),
curry(method_get_order, model)
)
setattr(
related_model,
'set_%s_order' % model.__name__.lower(),
curry(method_set_order, model)
)
########
# MISC #
########
def contribute_to_class(self, cls, name, **kwargs):
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.remote_field.symmetrical and (
self.remote_field.model == "self" or self.remote_field.model == cls._meta.object_name):
self.remote_field.related_name = "%s_rel_+" % name
elif self.remote_field.is_hidden():
# If the backwards relation is disabled, replace the original
# related_name with one generated from the m2m field name. Django
# still uses backwards relations internally and we need to avoid
# clashes between multiple m2m fields with related_name == '+'.
self.remote_field.related_name = "_%s_%s_+" % (cls.__name__.lower(), name)
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
# 3) The class owning the m2m field has been swapped out.
if not cls._meta.abstract:
if self.remote_field.through:
def resolve_through_model(_, model, field):
field.remote_field.through = model
lazy_related_operation(resolve_through_model, cls, self.remote_field.through, field=self)
elif not cls._meta.swapped:
self.remote_field.through = create_many_to_many_intermediary_model(self, cls)
# Add the descriptor for the m2m relation.
setattr(cls, self.name, ManyToManyDescriptor(self.remote_field, reverse=False))
# Set up the accessor for the m2m table name for the relation.
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
def _prepare(cls):
"""
Creates some methods once self._meta has been populated.
"""
opts = cls._meta
opts._prepare(cls)
if opts.order_with_respect_to:
cls.get_next_in_order = curry(cls._get_next_or_previous_in_order, is_next=True)
cls.get_previous_in_order = curry(cls._get_next_or_previous_in_order, is_next=False)
# Defer creating accessors on the foreign class until it has been
# created and registered. If remote_field is None, we're ordering
# with respect to a GenericForeignKey and don't know what the
# foreign class is - we'll add those accessors later in
# contribute_to_class().
if opts.order_with_respect_to.remote_field:
wrt = opts.order_with_respect_to
remote = wrt.remote_field.model
lazy_related_operation(make_foreign_order_accessors, cls, remote)
# Give the class a docstring -- its definition.
if cls.__doc__ is None:
cls.__doc__ = "%s(%s)" % (cls.__name__, ", ".join(f.name for f in opts.fields))
get_absolute_url_override = settings.ABSOLUTE_URL_OVERRIDES.get(opts.label_lower)
if get_absolute_url_override:
setattr(cls, 'get_absolute_url', get_absolute_url_override)
if not opts.managers or cls._requires_legacy_default_manager():
if any(f.name == 'objects' for f in opts.fields):
raise ValueError(
"Model %s must specify a custom Manager, because it has a "
"field named 'objects'." % cls.__name__
)
manager = Manager()
manager.auto_created = True
cls.add_to_class('objects', manager)
class_prepared.send(sender=cls)
def make_foreign_order_accessors(model, related_model):
setattr(
related_model,
'get_%s_order' % model.__name__.lower(),
curry(method_get_order, model)
)
setattr(
related_model,
'set_%s_order' % model.__name__.lower(),
curry(method_set_order, model)
)
########
# MISC #
########
def __call__(self, request):
if not request.method in ('GET', 'HEAD', 'OPTIONS', 'TRACE'):
# import pdb;pdb.set_trace()
if hasattr(request, 'user') and request.user.is_authenticated():
user = request.user
else:
user = None
mark_whodid = curry(self.mark_whodid, user)
signals.pre_save.connect(mark_whodid, dispatch_uid = (self.__class__, request,), weak = False)
response = self.get_response(request)
signals.pre_save.disconnect(dispatch_uid = (self.__class__, request,))
return response
def contribute_to_class(self, cls, name, **kwargs):
# To support multiple relations to self, it's useful to have a non-None
# related name on symmetrical relations for internal reasons. The
# concept doesn't make a lot of sense externally ("you want me to
# specify *what* on my non-reversible relation?!"), so we set it up
# automatically. The funky name reduces the chance of an accidental
# clash.
if self.remote_field.symmetrical and (
self.remote_field.model == "self" or self.remote_field.model == cls._meta.object_name):
self.remote_field.related_name = "%s_rel_+" % name
elif self.remote_field.is_hidden():
# If the backwards relation is disabled, replace the original
# related_name with one generated from the m2m field name. Django
# still uses backwards relations internally and we need to avoid
# clashes between multiple m2m fields with related_name == '+'.
self.remote_field.related_name = "_%s_%s_+" % (cls.__name__.lower(), name)
super(ManyToManyField, self).contribute_to_class(cls, name, **kwargs)
# The intermediate m2m model is not auto created if:
# 1) There is a manually specified intermediate, or
# 2) The class owning the m2m field is abstract.
# 3) The class owning the m2m field has been swapped out.
if not cls._meta.abstract:
if self.remote_field.through:
def resolve_through_model(_, model, field):
field.remote_field.through = model
lazy_related_operation(resolve_through_model, cls, self.remote_field.through, field=self)
elif not cls._meta.swapped:
self.remote_field.through = create_many_to_many_intermediary_model(self, cls)
# Add the descriptor for the m2m relation.
setattr(cls, self.name, ManyToManyDescriptor(self.remote_field, reverse=False))
# Set up the accessor for the m2m table name for the relation.
self.m2m_db_table = curry(self._get_m2m_db_table, cls._meta)
def _prepare(cls):
"""
Creates some methods once self._meta has been populated.
"""
opts = cls._meta
opts._prepare(cls)
if opts.order_with_respect_to:
cls.get_next_in_order = curry(cls._get_next_or_previous_in_order, is_next=True)
cls.get_previous_in_order = curry(cls._get_next_or_previous_in_order, is_next=False)
# Defer creating accessors on the foreign class until it has been
# created and registered. If remote_field is None, we're ordering
# with respect to a GenericForeignKey and don't know what the
# foreign class is - we'll add those accessors later in
# contribute_to_class().
if opts.order_with_respect_to.remote_field:
wrt = opts.order_with_respect_to
remote = wrt.remote_field.model
lazy_related_operation(make_foreign_order_accessors, cls, remote)
# Give the class a docstring -- its definition.
if cls.__doc__ is None:
cls.__doc__ = "%s(%s)" % (cls.__name__, ", ".join(f.name for f in opts.fields))
get_absolute_url_override = settings.ABSOLUTE_URL_OVERRIDES.get(opts.label_lower)
if get_absolute_url_override:
setattr(cls, 'get_absolute_url', get_absolute_url_override)
ensure_default_manager(cls)
signals.class_prepared.send(sender=cls)
def make_foreign_order_accessors(model, related_model):
setattr(
related_model,
'get_%s_order' % model.__name__.lower(),
curry(method_get_order, model)
)
setattr(
related_model,
'set_%s_order' % model.__name__.lower(),
curry(method_set_order, model)
)
########
# MISC #
########
def save(self):
published = False
post = super(AdminPostForm, self).save(commit=False)
if post.pk is None or Post.objects.filter(pk=post.pk, published=None).count():
if self.cleaned_data["state"] == Post.STATE_CHOICES[-1][0]:
post.published = timezone.now()
published = True
render_func = curry(
load_path_attr(
settings.PINAX_BLOG_MARKUP_CHOICE_MAP[self.cleaned_data["markup"]]["parser"]
)
)
post.teaser_html = render_func(self.cleaned_data["teaser"])
post.content_html = render_func(self.cleaned_data["content"])
post.updated = timezone.now()
post.save()
r = Revision()
r.post = post
r.title = post.title
r.teaser = self.cleaned_data["teaser"]
r.content = self.cleaned_data["content"]
r.author = post.author
r.updated = post.updated
r.published = post.published
r.save()
if can_tweet() and self.cleaned_data["tweet"]:
post.tweet()
if published:
post_published.send(sender=Post, post=post)
return post
