def news_patch(context, data_dict):
'''Patch a news. See news_create for
possible fields.
The difference between the update and patch methods is that the patch will
perform an update of the provided parameters, while leaving all other
parameters unchanged, whereas the update method deletes all parameters
not explicitly provided in the data_dict
:param id: The id of the news.
:type id: string
:returns: a patched news
:rtype: dictionary
'''
log.info('News patch: %r', data_dict)
logic.check_access('news_patch', context, data_dict)
news_patch_schema = schema.news_patch_schema()
fields = news_patch_schema.keys()
# Exclude fields from the schema that are not in data_dict
for field in fields:
if field not in data_dict.keys() and field != 'id':
news_patch_schema.pop(field)
data, errors = df.validate(data_dict, news_patch_schema, context)
if errors:
raise toolkit.ValidationError(errors)
news = ckanextNews.get(key=data['id'], attr='id')
if news is None:
raise logic.NotFound
fields = news_patch_schema.keys()
for field in fields:
setattr(news, field, data.get(field))
news.save()
out = news_dictize(news)
return out
def news_show(context, data_dict):
'''Return the metadata of a news.
:param id: the id of the news
:type id: string
:rtype: dictionary
'''
log.info('News show: %r', data_dict)
id = toolkit.get_or_bust(data_dict, 'id')
news = ckanextNews.get(key=id, attr='id')
if news is None:
raise logic.NotFound
out = news_dictize(news)
return out
def news_update(context, data_dict):
'''Update a news. This will update all fields. See news_create for
possible fields.
:param id: The id of the news.
:type id: string
:returns: an updated news
:rtype: dictionary
'''
log.info('News update: %r', data_dict)
logic.check_access('news_update', context, data_dict)
news_update_schema = schema.news_update_schema()
data, errors = df.validate(data_dict, news_update_schema, context)
if errors:
raise toolkit.ValidationError(errors)
news = ckanextNews.get(key=data['id'], attr='id')
if news is None:
raise logic.NotFound
news.title = data.get('title')
news.content = data.get('content', u'')
news.meta = data.get('meta', u'{}')
news.expiration_date = data.get('expiration_date')
news.image_url = data.get('image_url', u'')
news.save()
out = news_dictize(news)
return out