def set_state(self, version_id, state, principal=None):
"""Set state of given version"""
if str(version_id) not in self:
return
# update version state
version = self[str(version_id)]
wf_state = IWorkflowState(version)
wf_state.version_id = version_id
wf_state.state = state
if principal is not None:
wf_state.state_principal = principal
# update versions/states mapping
if state is None:
state = NONE_STATE
old_state = self.state_by_version[version_id]
versions = self.versions_by_state[old_state]
if version_id in versions:
versions.remove(version_id)
if versions:
self.versions_by_state[old_state] = versions
else:
del self.versions_by_state[old_state]
self.state_by_version[version_id] = state
versions = self.versions_by_state.get(state, [])
versions.append(version_id)
self.versions_by_state[state] = versions
def handle_workflow_version_transition(event):
"""Handle workflow version transition"""
principal = event.principal
factory = get_object_factory(IWorkflowStateHistoryItem)
if factory is not None:
item = factory(date=gmtime(datetime.utcnow()),
source_version=IWorkflowState(
event.old_object).version_id,
source_state=event.source,
target_state=event.destination,
transition_id=event.transition.transition_id,
principal=principal.id
if IPrincipalInfo.providedBy(principal) else principal,
comment=event.comment)
IWorkflowState(event.object).history.append(item) # pylint: disable=no-member
def label(self):
"""Label getter"""
translate = self.request.localizer.translate
state = IWorkflowState(self.context)
return translate(_("Version {id} - {state}")).format(
id=state.version_id,
state=translate(self.workflow.get_state_label(state.state)))
def create_and_add(self, data):
data = data.get(self, {})
info = IWorkflowInfo(self.context)
result = info.fire_transition(self.transition.transition_id, comment=data.get('comment'))
info.fire_automatic()
IWorkflowState(self.context).state_urgency = data.get('urgent_request') or False
self.request.registry.notify(ObjectModifiedEvent(self.context))
return result or info
def delete_action(wf, context): # pylint: disable=invalid-name,unused-argument
"""Delete draft version, and parent if single version"""
versions = IWorkflowVersions(context)
versions.remove_version(IWorkflowState(context).version_id)
if not versions.get_last_versions():
document = get_parent(versions, IDocument)
folder = get_parent(document, IDocumentFolder)
del folder[document.__name__]
def fire_transition(self,
transition_id,
comment=None,
side_effect=None,
check_security=True,
principal=None,
request=None):
# pylint: disable=too-many-arguments
"""Fire transition with given ID"""
versions = IWorkflowVersions(self.parent)
state = IWorkflowState(self.context)
if request is None:
request = check_request()
# this raises InvalidTransitionError if id is invalid for current state
transition = self.wf.get_transition(state.state, transition_id)
# check whether we may execute this workflow transition
if check_security and transition.permission:
if not request.has_permission(transition.permission,
context=self.context):
raise HTTPUnauthorized()
# now make sure transition can still work in this context
if not transition.condition(self, self.context):
raise ConditionFailedError()
# perform action, return any result as new version
if principal is None:
principal = request.principal
result = transition.action(self, self.context)
if result is not None:
# stamp it with version
versions.add_version(result, transition.destination, principal)
# execute any side effect:
if side_effect is not None:
side_effect(result)
event = WorkflowVersionTransitionEvent(result, self.wf, principal,
self.context,
transition.source,
transition.destination,
transition, comment)
else:
versions.set_state(state.version_id, transition.destination,
principal)
# execute any side effect
if side_effect is not None:
side_effect(self.context)
event = WorkflowTransitionEvent(self.context, self.wf, principal,
transition.source,
transition.destination, transition,
comment)
# change state of context or new object
registry = request.registry
registry.notify(event)
# send modified event for original or new object
if result is None:
registry.notify(ObjectModifiedEvent(self.context))
else:
registry.notify(ObjectModifiedEvent(result))
return result
def _get_transitions(self, trigger):
"""Retrieve all possible transitions from workflow utility"""
state = IWorkflowState(self.context)
transitions = self.wf.get_transitions(state.state)
# now filter these transitions to retrieve all possible
# transitions in this context, and return their ids
return [
transition for transition in transitions
if transition.trigger == trigger
]
def remove_version(self,
version_id,
state='deleted',
comment=None,
principal=None,
request=None):
# pylint: disable=too-many-arguments
"""Remove version with given ID"""
if str(version_id) not in self:
return
# update version state
version = self[str(version_id)]
wf_state = IWorkflowState(version)
if comment:
if request is None:
request = check_request()
translate = request.localizer.translate
workflow = get_utility(
IWorkflow,
name=get_parent(self, IWorkflowManagedContent).workflow_name)
item = WorkflowHistoryItem(
date=datetime.utcnow(),
source_version=wf_state.version_id,
source_state=translate(
workflow.states.getTerm(wf_state.state).title),
target_state=translate(workflow.states.getTerm(state).title),
principal=request.principal.id,
comment=comment)
wf_state.history.append(item) # pylint: disable=no-member
wf_state.state = state
if principal is not None:
wf_state.state_principal = principal
# remove given version
state = self.state_by_version[version_id]
versions = self.versions_by_state[state]
versions.remove(version_id)
if versions:
self.versions_by_state[state] = versions
else:
del self.versions_by_state[state]
del self.state_by_version[version_id]
self.deleted[version_id] = self[str(version_id)]
del self[str(version_id)]
def edit_permission(self):
"""Document edit permission getter"""
document = self.context
request = self.request
if request.has_permission(MANAGE_APPLICATION_PERMISSION, context=self):
return MANAGE_APPLICATION_PERMISSION
state = IWorkflowState(document)
if state in ZFILES_WORKFLOW.visible_states:
return FORBIDDEN_PERMISSION
return MANAGE_DOCUMENT_PERMISSION
def set_file_properties(request, oid, properties, version=None):
"""Set document properties"""
container = get_utility(IDocumentContainer)
document = container.update_document(oid,
version,
properties=properties,
request=request)
if document is None:
return None
state = IWorkflowState(document)
return {'version': state.version_id}
def handle_cloned_object(event):
"""Add comment when an object is cloned"""
request = check_request()
translate = request.localizer.translate
source_state = IWorkflowState(event.source)
factory = get_object_factory(IWorkflowStateHistoryItem)
if factory is not None:
item = factory(
date=datetime.utcnow(),
principal=request.principal.id,
comment=translate(
_("Clone created from version {source} (in « {state} » "
"state)")).format(source=source_state.version_id,
state=translate(
IWorkflow(
event.source).get_state_label(
source_state.state))))
target_state = IWorkflowState(event.object)
target_state.history.clear() # pylint: disable=no-member
target_state.history.append(item) # pylint: disable=no-member
def add_version(self, content, state, principal=None):
"""Add new version to versions list"""
self.last_version_id += 1
version_id = self.last_version_id
# init version state
alsoProvides(content, IWorkflowVersion)
wf_state = IWorkflowState(content)
wf_state.version_id = version_id
wf_state.state = state
if principal is not None:
wf_state.state_principal = principal
# store new version
if state is None:
state = NONE_STATE
self[str(version_id)] = content
self.state_by_version[version_id] = state
versions = self.versions_by_state.get(state, [])
versions.append(version_id)
self.versions_by_state[state] = versions
return version_id
def visible_publication_date(self):
"""Visible publication date getter"""
displayed_date = self.displayed_publication_date
if displayed_date == DISPLAY_FIRST_VERSION:
state = IWorkflowState(self.__parent__, None)
if (state is not None) and (state.version_id > 1):
versions = IWorkflowVersions(self.__parent__, None)
if versions is not None:
version = versions.get_version(1) # pylint: disable=assignment-from-no-return
return IWorkflowPublicationInfo(
version).publication_effective_date
return self.publication_effective_date
def set_file_data(request, oid, data, properties=None, version=None):
"""Set document data"""
container = get_utility(IDocumentContainer)
if isinstance(data, Binary):
data = data.data
else:
data = base64.b64decode(data)
document = container.update_document(oid, version, data, properties,
request)
if document is None:
return None
state = IWorkflowState(document)
return {'version': state.version_id}
def _get_viewlets(self):
translate = self.request.localizer.translate
for version in IWorkflowVersions(
self.context).get_last_versions(count=0):
state = IWorkflowState(version)
item = MenuItem(version, self.request, self.view, self)
item.label = translate(_("Version {id} - {state}")).format(
id=state.version_id,
state=translate(self.workflow.get_state_label(state.state)))
item.icon_class = 'fas fa-arrow-right'
if version is self.context:
item.css_class = 'bg-primary text-white'
item.href = absolute_url(version, self.request,
'admin#{}'.format(self.request.view_name))
yield 'version_{}'.format(state.version_id), item
def get_label(content, request=None, format=True): # pylint: disable=redefined-builtin
"""Workflow state label getter"""
if request is None:
request = check_request()
translate = request.localizer.translate
state = IWorkflowState(content)
header = STATES_HEADERS.get(state.state)
if header is not None:
state_label = translate(header)
if format:
state_label = translate(_('{state} {date}')).format(
state=state_label, date=format_datetime(state.state_date))
else:
state_label = translate(_("Unknown state"))
return state_label
def publish_action(wf, context): # pylint: disable=invalid-name,unused-argument
"""Publish version"""
request = check_request()
translate = request.localizer.translate
publication_info = IWorkflowPublicationInfo(context)
publication_info.publication_date = datetime.utcnow()
publication_info.publisher = request.principal.id
version_id = IWorkflowState(context).version_id
for version in IWorkflowVersions(context).get_versions(
(PUBLISHED_STATE, )):
if version is not context:
IWorkflowInfo(version).fire_transition_toward(
ARCHIVED_STATE,
comment=translate(
_("Published version {0}")).format(version_id))
def update_document(self,
oid,
version=None,
data=None,
properties=None,
request=None,
check_permission=True):
# pylint: disable=too-many-arguments
"""Update document data or properties"""
if not oid:
return None
document = self.get_document(oid, version)
if document is None:
raise HTTPNotFound()
if request is None:
request = check_request()
if check_permission and \
not request.has_permission(MANAGE_DOCUMENT_PERMISSION, context=document):
raise HTTPForbidden()
if properties is None:
properties = {}
if data is not None:
document_hash = get_hash(data)
if document_hash == document.hash:
# unmodified file content
data = None
_filename = properties.pop('filename', None)
else:
# modified file content, check state and create new version if required
if request is None:
request = check_request()
state = IWorkflowState(document)
if state.state != DRAFT_STATE:
translate = request.localizer.translate
workflow_info = IWorkflowInfo(document)
document = workflow_info.fire_transition_toward( # pylint: disable=assignment-from-no-return
DRAFT_STATE,
comment=translate(_("Document content update")),
request=request)
request.response.status = HTTPCreated.code
state = document.update(data, properties)
request.registry.notify(ObjectModifiedEvent(document))
if state.state == DELETED_STATE:
return None
return document
def update(self, data, properties, request=None):
"""Document data setter"""
if properties:
if request is None:
request = check_request()
self.updater = request.principal.id
if data is not None:
if 'filename' in properties:
data = (properties.pop('filename'), data)
self.data = data
if (not self.title) or ('title' in properties):
self.title = properties.pop('title', '<UNDEFINED>')
if (not self.application_name) or ('application_name' in properties):
self.application_name = properties.pop('application_name',
'<UNDEFINED>')
self.update_roles(properties, request)
self.update_security_policy(properties, request)
self.update_status(properties, request)
self.update_properties(properties, request)
return IWorkflowState(self)
def fire_transition_toward(self,
state,
comment=None,
side_effect=None,
check_security=True,
principal=None,
request=None):
# pylint: disable=too-many-arguments
"""Fire transition(s) to given state"""
current_state = IWorkflowState(self.context)
if state == current_state.state: # unchanged state
return None
transition_ids = self.get_fireable_transition_ids_toward(
state, check_security)
if not transition_ids:
raise NoTransitionAvailableError(current_state.state, state)
if len(transition_ids) != 1:
raise AmbiguousTransitionError(current_state.state, state)
return self.fire_transition(transition_ids[0], comment, side_effect,
check_security, principal, request)
def get_label(content, request=None, format=True): # pylint: disable=redefined-builtin
"""Workflow state label getter"""
if request is None:
request = check_request()
translate = request.localizer.translate
state = IWorkflowState(content)
if len(state.history) <= 2:
header = STATES_HEADERS.get(state.state)
if header is not None:
if state.version_id == 1:
state_label = translate(header)
else:
state_label = translate(_("new version created"))
else:
state_label = translate(_("Unknown state"))
else:
state_label = translate(_('publication refused'))
if format:
state_label = translate(_('{state} {date}')).format(
state=state_label, date=format_datetime(state.state_date))
return state_label
def title(self):
"""Title getter"""
translate = self.request.localizer.translate # pylint: disable=no-member
return translate(_("Version {version} history")).format(
version=IWorkflowState(self.context).version_id) # pylint: disable=no-member
def get_value(self, obj):
state = IWorkflowState(obj)
return self.request.localizer.translate(STATE_LABELS.get(state.state))
def to_json(self, fields=None, request=None):
"""Get document properties in JSON format"""
if request is None:
request = check_request()
dc = IZopeDublinCore(self) # pylint: disable=invalid-name
state = IWorkflowState(self)
roles = IDocumentRoles(self)
result = {
'api':
absolute_url(request.root, request,
'api/zfiles/rest/{}'.format(self.oid)),
'oid':
self.oid,
'title':
self.title,
'application_name':
self.application_name,
'filename':
self.data.filename,
'filesize':
self.data.get_size(),
'content_type':
self.data.content_type,
'href':
absolute_url(self.data, request),
'hash':
self.hash,
'properties':
self.properties,
'tags':
list(self.tags or ()),
'version':
state.version_id,
'status':
state.state,
'creator':
list(roles.creator)[0],
'created_time':
dc.created.isoformat() if dc.created else None, # pylint: disable=no-member
'owner':
list(roles.owner)[0],
'updater':
self.updater,
'updated_time':
dc.modified.isoformat() if dc.modified else None, # pylint: disable=no-member
'status_updater':
state.state_principal,
'status_update_time':
state.state_date.isoformat(), # pylint: disable=no-member
'access_mode':
ACCESS_MODE_IDS[self.access_mode],
'readers':
list(roles.readers or ()),
'update_mode':
ACCESS_MODE_IDS[self.update_mode],
'managers':
list(roles.managers or ())
}
if fields:
for key in tuple(result.keys()):
if key not in fields:
del result[key]
return result
def values(self):
"""History table getter"""
yield from IWorkflowState(self.context).history # pylint: disable=not-an-iterable
def get_value(self, obj):
state = IWorkflowState(obj)
return state.version_id
