'''

These are objects generated by the resource and are serialized by a media type.

'''

from hyperadmin.links import LinkCollectorMixin, ItemLinkCollectionProvider

class Item(LinkCollectorMixin):

'''

Represents an instance that is bound to an endpoint

'''

form_class = None

link_collector_class = ItemLinkCollectionProvider

def __init__(self, endpoint, instance):

self.endpoint = endpoint

self.instance = instance

self.links = self.get_link_collector()

@property

def state(self):

return self.endpoint.state

def get_absolute_url(self):

return self.endpoint.get_item_url(self)

def get_form_class(self):

if self.form_class is not None:

return self.form_class

return self.endpoint.get_item_form_class()

def get_form_kwargs(self, **kwargs):

kwargs['item'] = self

return self.endpoint.get_item_form_kwargs(**kwargs)

def get_form(self, **form_kwargs):

form_cls = self.get_form_class()

kwargs = self.get_form_kwargs(**form_kwargs)

form = form_cls(**kwargs)

return form

@property

def form(self):

"""

Mediatype uses this form to serialize the result

"""

if not hasattr(self, '_form'):

self._form = self.get_form()

return self._form

def get_prompt(self):

"""

Returns a string representing the item

"""

return self.endpoint.get_item_prompt(self)

def get_resource_items(self):

return [self]

def get_namespaces(self):

"""

Returns namespaces associated with this item

"""

return self.endpoint.get_item_namespaces(item=self)

def get_link(self):

return self.endpoint.get_item_link(item=self)