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delete.py
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delete.py
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from pylons.i18n import _
import ckan.logic
import ckan.logic.action
import ckan.plugins as plugins
import ckan.lib.dictization.model_dictize as model_dictize
validate = ckan.lib.navl.dictization_functions.validate
# Define some shortcuts
# Ensure they are module-private so that they don't get loaded as available
# actions in the action API.
ValidationError = ckan.logic.ValidationError
NotFound = ckan.logic.NotFound
_check_access = ckan.logic.check_access
_get_or_bust = ckan.logic.get_or_bust
_get_action = ckan.logic.get_action
def package_delete(context, data_dict):
'''Delete a dataset (package).
You must be authorized to delete the dataset.
:param id: the id or name of the dataset to delete
:type id: string
'''
model = context['model']
user = context['user']
id = _get_or_bust(data_dict, 'id')
entity = model.Package.get(id)
if entity is None:
raise NotFound
_check_access('package_delete',context, data_dict)
rev = model.repo.new_revision()
rev.author = user
rev.message = _(u'REST API: Delete Package: %s') % entity.name
for item in plugins.PluginImplementations(plugins.IPackageController):
item.delete(entity)
item.after_delete(context, data_dict)
entity.delete()
model.repo.commit()
def resource_delete(context, data_dict):
'''Delete a resource from a dataset.
You must be a sysadmin or the owner of the resource to delete it.
:param id: the id of the resource
:type id: string
'''
model = context['model']
id = _get_or_bust(data_dict, 'id')
entity = model.Resource.get(id)
if entity is None:
raise NotFound
_check_access('resource_delete',context, data_dict)
entity.delete()
model.repo.commit()
def package_relationship_delete(context, data_dict):
'''Delete a dataset (package) relationship.
You must be authorised to delete dataset relationships, and to edit both
the subject and the object datasets.
:param subject: the id or name of the dataset that is the subject of the
relationship
:type subject: string
:param object: the id or name of the dataset that is the object of the
relationship
:type object: string
:param type: the type of the relationship
:type type: string
'''
model = context['model']
user = context['user']
id, id2, rel = _get_or_bust(data_dict, ['subject', 'object', 'type'])
pkg1 = model.Package.get(id)
pkg2 = model.Package.get(id2)
if not pkg1:
raise NotFound('Subject package %r was not found.' % id)
if not pkg2:
return NotFound('Object package %r was not found.' % id2)
existing_rels = pkg1.get_relationships_with(pkg2, rel)
if not existing_rels:
raise NotFound
relationship = existing_rels[0]
revisioned_details = 'Package Relationship: %s %s %s' % (id, rel, id2)
context['relationship'] = relationship
_check_access('package_relationship_delete', context, data_dict)
rev = model.repo.new_revision()
rev.author = user
rev.message = _(u'REST API: Delete %s') % revisioned_details
relationship.delete()
model.repo.commit()
def related_delete(context, data_dict):
'''Delete a related item from a dataset.
You must be a sysadmin or the owner of the related item to delete it.
:param id: the id of the related item
:type id: string
'''
model = context['model']
session = context['session']
user = context['user']
userobj = model.User.get(user)
id = _get_or_bust(data_dict, 'id')
entity = model.Related.get(id)
if entity is None:
raise NotFound
_check_access('related_delete',context, data_dict)
related_dict = model_dictize.related_dictize(entity, context)
activity_dict = {
'user_id': userobj.id,
'object_id': entity.id,
'activity_type': 'deleted related item',
}
activity_dict['data'] = {
'related': related_dict
}
activity_create_context = {
'model': model,
'user': user,
'defer_commit':True,
'session': session
}
_get_action('activity_create')(activity_create_context, activity_dict, ignore_auth=True)
session.commit()
entity.delete()
model.repo.commit()
def member_delete(context, data_dict=None):
'''Remove an object (e.g. a user, dataset or group) from a group.
You must be authorized to edit a group to remove objects from it.
:param id: the id of the group
:type id: string
:param object: the id of the object to be removed
:type object: string
:param object_type: the type of the object to be removed, e.g. ``package``
or ``user``
:type object_type: string
'''
model = context['model']
group = model.Group.get(_get_or_bust(data_dict, 'id'))
obj_id, obj_type = _get_or_bust(data_dict, ['object', 'object_type'])
# User must be able to update the group to remove a member from it
_check_access('group_update', context, data_dict)
member = model.Session.query(model.Member).\
filter(model.Member.table_name == obj_type).\
filter(model.Member.table_id == obj_id).\
filter(model.Member.group_id == group.id).\
filter(model.Member.state == "active").first()
if member:
rev = model.repo.new_revision()
rev.author = context.get('user')
rev.message = _(u'REST API: Delete Member: %s') % obj_id
member.delete()
model.repo.commit()
def _group_or_org_delete(context, data_dict, is_org=False):
'''Delete a group.
You must be authorized to delete the group.
:param id: the name or id of the group
:type id: string
'''
model = context['model']
user = context['user']
id = _get_or_bust(data_dict, 'id')
group = model.Group.get(id)
context['group'] = group
if group is None:
raise NotFound('Group was not found.')
revisioned_details = 'Group: %s' % group.name
if is_org:
_check_access('organization_delete', context, data_dict)
else:
_check_access('group_delete', context, data_dict)
# organization delete will delete all datasets for that org
# FIXME this gets all the packages the user can see which generally will
# be all but this is only a fluke so we should fix this properly
if is_org:
for pkg in group.packages(with_private=True):
_get_action('package_delete')(context, {'id': pkg.id})
rev = model.repo.new_revision()
rev.author = user
rev.message = _(u'REST API: Delete %s') % revisioned_details
group.delete()
if is_org:
plugin_type = plugins.IOrganizationController
else:
plugin_type = plugins.IGroupController
for item in plugins.PluginImplementations(plugin_type):
item.delete(group)
model.repo.commit()
def group_delete(context, data_dict):
'''Delete a group.
You must be authorized to delete the group.
:param id: the name or id of the group
:type id: string
'''
return _group_or_org_delete(context, data_dict)
def organization_delete(context, data_dict):
'''Delete a organization.
You must be authorized to delete the organization.
:param id: the name or id of the organization
:type id: string
'''
return _group_or_org_delete(context, data_dict, is_org=True)
def task_status_delete(context, data_dict):
'''Delete a task status.
You must be a sysadmin to delete task statuses.
:param id: the id of the task status to delete
:type id: string
'''
model = context['model']
id = _get_or_bust(data_dict, 'id')
entity = model.TaskStatus.get(id)
if entity is None:
raise NotFound
_check_access('task_status_delete', context, data_dict)
entity.delete()
model.Session.commit()
def vocabulary_delete(context, data_dict):
'''Delete a tag vocabulary.
You must be a sysadmin to delete vocabularies.
:param id: the id of the vocabulary
:type id: string
'''
model = context['model']
vocab_id = data_dict.get('id')
if not vocab_id:
raise ValidationError({'id': _('id not in data')})
vocab_obj = model.vocabulary.Vocabulary.get(vocab_id)
if vocab_obj is None:
raise NotFound(_('Could not find vocabulary "%s"') % vocab_id)
_check_access('vocabulary_delete', context, data_dict)
vocab_obj.delete()
model.repo.commit()
def tag_delete(context, data_dict):
'''Delete a tag.
You must be a sysadmin to delete tags.
:param id: the id or name of the tag
:type id: string
:param vocabulary_id: the id or name of the vocabulary that the tag belongs
to (optional, default: None)
:type vocabulary_id: string
'''
model = context['model']
if not data_dict.has_key('id') or not data_dict['id']:
raise ValidationError({'id': _('id not in data')})
tag_id_or_name = _get_or_bust(data_dict, 'id')
vocab_id_or_name = data_dict.get('vocabulary_id')
tag_obj = model.tag.Tag.get(tag_id_or_name, vocab_id_or_name)
if tag_obj is None:
raise NotFound(_('Could not find tag "%s"') % tag_id_or_name)
_check_access('tag_delete', context, data_dict)
tag_obj.delete()
model.repo.commit()
def package_relationship_delete_rest(context, data_dict):
# rename keys
key_map = {'id': 'subject',
'id2': 'object',
'rel': 'type'}
# We want 'destructive', so that the value of the subject,
# object and rel in the URI overwrite any values for these
# in params. This is because you are not allowed to change
# these values.
data_dict = ckan.logic.action.rename_keys(data_dict, key_map, destructive=True)
package_relationship_delete(context, data_dict)
def _unfollow(context, data_dict, schema, FollowerClass):
model = context['model']
if not context.has_key('user'):
raise ckan.logic.NotAuthorized(
_("You must be logged in to unfollow something."))
userobj = model.User.get(context['user'])
if not userobj:
raise ckan.logic.NotAuthorized(
_("You must be logged in to unfollow something."))
follower_id = userobj.id
validated_data_dict, errors = validate(data_dict, schema, context)
if errors:
raise ValidationError(errors)
object_id = validated_data_dict.get('id')
follower_obj = FollowerClass.get(follower_id, object_id)
if follower_obj is None:
raise NotFound(
_('You are not following {0}.').format(data_dict.get('id')))
follower_obj.delete()
model.repo.commit()
def unfollow_user(context, data_dict):
'''Stop following a user.
:param id: the id or name of the user to stop following
:type id: string
'''
schema = context.get('schema',
ckan.logic.schema.default_follow_user_schema())
_unfollow(context, data_dict, schema, context['model'].UserFollowingUser)
def unfollow_dataset(context, data_dict):
'''Stop following a dataset.
:param id: the id or name of the dataset to stop following
:type id: string
'''
schema = context.get('schema',
ckan.logic.schema.default_follow_dataset_schema())
_unfollow(context, data_dict, schema,
context['model'].UserFollowingDataset)
def _group_or_org_member_delete(context, data_dict=None):
model = context['model']
user = context['user']
session = context['session']
group_id = data_dict.get('id')
group = model.Group.get(group_id)
user_id = data_dict.get('user_id')
member_dict = {
'id': group.id,
'object': user_id,
'object_type': 'user',
}
member_context = {
'model': model,
'user': user,
'session': session
}
_get_action('member_delete')(member_context, member_dict)
def group_member_delete(context, data_dict=None):
return _group_or_org_member_delete(context, data_dict)
def organization_member_delete(context, data_dict=None):
return _group_or_org_member_delete(context, data_dict)
def unfollow_group(context, data_dict):
'''Stop following a group.
:param id: the id or name of the group to stop following
:type id: string
'''
schema = context.get('schema',
ckan.logic.schema.default_follow_group_schema())
_unfollow(context, data_dict, schema,
context['model'].UserFollowingGroup)