183 lines
7.5 KiB
Python
183 lines
7.5 KiB
Python
# w.c.s. - web application for online forms
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# Copyright (C) 2005-2020 Entr'ouvert
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, see <http://www.gnu.org/licenses/>.
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from quixote import get_publisher
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from wcs.qommon import _
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from wcs.qommon.form import SingleSelectWidget
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from wcs.logged_errors import LoggedError
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from wcs.workflows import WorkflowStatusItem, perform_items, register_item_class
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from wcs.workflows import WorkflowGlobalActionWebserviceTrigger, Workflow
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from wcs.wf.create_formdata import LinkedFormdataEvolutionPart
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from wcs.carddef import CardDef
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from wcs.formdef import FormDef
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class ExternalWorkflowGlobalAction(WorkflowStatusItem):
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description = _('External workflow')
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key = 'external_workflow_global_action'
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category = 'formdata-action'
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slug = None
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trigger_id = None
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@classmethod
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def is_available(cls, workflow=None):
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return get_publisher().has_site_option('external-workflow')
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def get_workflow_webservice_triggers(self, workflow):
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for action in workflow.global_actions or []:
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for trigger in action.triggers or []:
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if isinstance(trigger, WorkflowGlobalActionWebserviceTrigger) and trigger.identifier:
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yield trigger
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def get_object_def(self, object_slug=None):
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slug = object_slug or self.slug
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object_type, slug = slug.split(':')
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if object_type == 'formdef':
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object_class = FormDef
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elif object_type == 'carddef':
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object_class = CardDef
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try:
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return object_class.get_by_urlname(slug)
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except KeyError:
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pass
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def get_trigger(self, workflow):
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try:
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trigger_type, trigger_id = self.trigger_id.split(':', 1)
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except ValueError:
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return
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for trigger in self.get_workflow_webservice_triggers(workflow):
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if trigger.identifier == trigger_id:
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return trigger
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def add_parameters_widgets(self, form, parameters, prefix='', formdef=None):
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super(ExternalWorkflowGlobalAction, self).add_parameters_widgets(
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form, parameters, prefix=prefix, formdef=formdef)
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if 'slug' in parameters:
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objects = [(None, '---', '')]
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for wf in Workflow.select():
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if any(self.get_workflow_webservice_triggers(wf)):
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for objectdef in wf.formdefs(lightweight=True) + wf.carddefs(lightweight=True):
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object_slug = '%s:%s' % (objectdef.__class__.__name__.lower(),
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objectdef.url_name)
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objects.append((object_slug, objectdef.name, object_slug))
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if len(objects) == 1:
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form.add_global_errors([_('No workflow with external triggerable global action.')])
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return
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objects.sort(key=lambda x: x[1])
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form.add(SingleSelectWidget, '%sslug' % prefix,
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title=_('Form/Card'),
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value=self.slug,
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required=True,
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options=objects)
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if 'trigger_id' in parameters and form.get('%sslug' % prefix):
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object_def = self.get_object_def(form.get('%sslug' % prefix))
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if not object_def:
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return
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triggers_names = [(None, '---', '')]
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for trigger in self.get_workflow_webservice_triggers(object_def.workflow):
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trigger_id = 'action:%s' % trigger.identifier
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triggers_names.append((trigger_id, trigger.parent.name, trigger_id))
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form.add(SingleSelectWidget, '%strigger_id' % prefix,
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title=_('Action'),
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value=self.trigger_id,
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required=True,
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options=triggers_names)
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def get_line_details(self):
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if self.slug and self.trigger_id:
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objectdef = self.get_object_def()
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if objectdef:
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trigger = self.get_trigger(objectdef.workflow)
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if trigger:
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return _('action "%(trigger_name)s" on %(object_name)s') % {
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'trigger_name': trigger.parent.name,
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'object_name': objectdef.name}
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return _('not completed')
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def iter_target_datas(self, formdata, objectdef):
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parent = formdata.get_parent()
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if parent:
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parent_identifier = '%s:%s' % (parent.formdef.xml_root_node,
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parent.formdef.url_name)
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if parent_identifier == self.slug:
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yield parent
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data_ids = []
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# search linked objects in data sources
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for field in formdata.get_formdef().get_all_fields():
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if getattr(field, 'data_source', None) and field.data_source['type'] == self.slug:
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linked_id = formdata.data.get(field.id)
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if linked_id:
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data_ids.append(linked_id)
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# search in evolution
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for part in formdata.iter_evolution_parts():
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if isinstance(part, LinkedFormdataEvolutionPart):
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part_identifier = '%s:%s' % (part.formdef.xml_root_node, part.formdef.url_name)
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if part_identifier == self.slug:
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data_ids.append(part.formdata_id)
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for target_id in data_ids:
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try:
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yield objectdef.data_class().get(target_id)
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except KeyError as e:
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# use custom error message depending on target type
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LoggedError.record(_('Could not find linked "%(object_name)s" object by id %(object_id)s') % {
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'object_name': objectdef.name, 'object_id': target_id},
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formdata=formdata, status_item=self, exception=e)
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def get_parameters(self):
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return ('slug', 'trigger_id', 'condition')
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def perform(self, formdata):
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objectdef = self.get_object_def()
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if not objectdef:
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return
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trigger = self.get_trigger(objectdef.workflow)
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if not trigger:
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LoggedError.record(_('No trigger with id "%s" found in workflow') % self.trigger_id,
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formdata=formdata, status_item=self)
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return
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class CallerSource:
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def __init__(self, formdata):
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self.formdata = formdata
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def get_substitution_variables(self):
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return {'caller_form': self.formdata.get_substitution_variables(minimal=True)['form']}
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caller_source = CallerSource(formdata)
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for target_data in self.iter_target_datas(formdata, objectdef):
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with get_publisher().substitutions.temporary_feed(target_data):
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get_publisher().substitutions.reset()
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get_publisher().substitutions.feed(get_publisher())
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get_publisher().substitutions.feed(target_data.formdef)
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get_publisher().substitutions.feed(target_data)
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get_publisher().substitutions.feed(caller_source)
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perform_items(trigger.parent.items, target_data)
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register_item_class(ExternalWorkflowGlobalAction)
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