117 lines
4.0 KiB
Python
117 lines
4.0 KiB
Python
import uuid
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from crc.api.file import delete_file
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from crc import session
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from crc.api.common import ApiError, ApiErrorSchema
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from crc.models.workflow import WorkflowModel, WorkflowModelSchema, WorkflowSpecModelSchema, WorkflowSpecModel, \
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Task, TaskSchema
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from crc.workflow_processor import WorkflowProcessor
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from crc.models.file import FileModel
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def all_specifications():
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schema = WorkflowSpecModelSchema(many=True)
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return schema.dump(session.query(WorkflowSpecModel).all())
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def add_workflow_specification(body):
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new_spec = WorkflowSpecModelSchema().load(body, session=session)
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session.add(new_spec)
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session.commit()
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return WorkflowSpecModelSchema().dump(new_spec)
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def get_workflow_specification(spec_id):
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if spec_id is None:
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error = ApiError('unknown_spec', 'Please provide a valid Workflow Specification ID.')
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return ApiErrorSchema.dump(error), 404
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spec: WorkflowSpecModel = session.query(WorkflowSpecModel).filter_by(id=spec_id).first()
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if spec is None:
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error = ApiError('unknown_spec', 'The Workflow Specification "' + spec_id + '" is not recognized.')
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return ApiErrorSchema.dump(error), 404
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return WorkflowSpecModelSchema().dump(spec)
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def update_workflow_specification(spec_id, body):
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spec = WorkflowSpecModelSchema().load(body, session=session)
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spec.id = spec_id
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session.add(spec)
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session.commit()
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return WorkflowSpecModelSchema().dump(spec)
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def delete_workflow_specification(spec_id):
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if spec_id is None:
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error = ApiError('unknown_spec', 'Please provide a valid Workflow Specification ID.')
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return ApiErrorSchema.dump(error), 404
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spec: WorkflowSpecModel = session.query(WorkflowSpecModel).filter_by(id=spec_id).first()
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if spec is None:
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error = ApiError('unknown_spec', 'The Workflow Specification "' + spec_id + '" is not recognized.')
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return ApiErrorSchema.dump(error), 404
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# Delete all items in the database related to the deleted workflow spec.
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files = session.query(FileModel).filter_by(workflow_spec_id=spec_id).all()
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for file in files:
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delete_file(file.id)
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session.query(WorkflowModel).filter_by(workflow_spec_id=spec_id).delete()
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session.query(WorkflowSpecModel).filter_by(id=spec_id).delete()
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session.commit()
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def get_workflow(workflow_id):
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schema = WorkflowModelSchema()
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workflow = session.query(WorkflowModel).filter_by(id=workflow_id).first()
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return schema.dump(workflow)
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def delete(workflow_id):
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session.query(WorkflowModel).filter_by(id=workflow_id).delete()
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session.commit()
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3
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def get_all_tasks(workflow_id):
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workflow = session.query(WorkflowModel).filter_by(id=workflow_id).first()
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processor = WorkflowProcessor(workflow.workflow_spec_id, workflow.bpmn_workflow_json)
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spiff_tasks = processor.get_all_user_tasks()
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tasks = []
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for st in spiff_tasks:
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tasks.append(Task.from_spiff(st))
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return TaskSchema(many=True).dump(tasks)
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def get_ready_user_tasks(workflow_id):
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workflow = session.query(WorkflowModel).filter_by(id=workflow_id).first()
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processor = WorkflowProcessor(workflow.workflow_spec_id, workflow.bpmn_workflow_json)
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spiff_tasks = processor.get_ready_user_tasks()
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tasks = []
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for st in spiff_tasks:
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tasks.append(Task.from_spiff(st))
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return TaskSchema(many=True).dump(tasks)
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def get_task(workflow_id, task_id):
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workflow = session.query(WorkflowModel).filter_by(id=workflow_id).first()
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return workflow.bpmn_workflow().get_task(task_id)
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def update_task(workflow_id, task_id, body):
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workflow = session.query(WorkflowModel).filter_by(id=workflow_id).first()
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processor = WorkflowProcessor(workflow.workflow_spec_id, workflow.bpmn_workflow_json)
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task_id = uuid.UUID(task_id)
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task = processor.bpmn_workflow.get_task(task_id)
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task.data = body
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processor.complete_task(task)
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processor.do_engine_steps()
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workflow.bpmn_workflow_json = processor.serialize()
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session.add(workflow)
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session.commit()
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return WorkflowModelSchema().dump(workflow)
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