When executing a task with 'with-items' and an ad-hoc action with default values. If one of the default values is omitted, the task fails to start, saying the key (of the missing default value) cannot be found.
This action and this simple workflow reproduces the error:
---
version: '2.0'
test.http:
input:
- url: http://www.example.com
- method: GET
- timeout: 10
output: <% $.content %>
base: std.http
base-input:
url: <% $.url %>
method: <% $.method %>
timeout: <% $.timeout %>
---
version: '2.0'
with_items_default_bug:
description: Re-create the with-items bug with default values
type: direct
tasks:
get_pages:
with-items: page in <% range(0, 1) %>
action: test.http
input:
url: http://www.example.com
method: GET
on-success:
- well_done
well_done:
action: std.echo output="Well done"
Here is task state info after the error:
Failed to run task [wf=WorkflowExecution {'state_info': None, 'accepted': False, 'output': {}, 'name': u'with_items_default_bug', 'workflow_name': u'with_items_default_bug', 'state': 'RUNNING', 'created_at': '2016-06-30 07:21:02.341331', 'runtime_context': {'index': 0}, 'updated_at': '2016-06-30 07:21:02.344926', 'spec': {u'tasks': {u'get_pages': {u'with-items': u'page in <% range(0, 1) %>', u'name': u'get_pages', u'on-success': [u'well_done'], u'version': '2.0', u'action': u'test.http', u'input': {u'url': u'http://www.example.com', u'method': u'GET'}, u'type': u'direct'}, u'well_done': {u'action': u'std.echo output="Well done"', u'version': '2.0', u'type': u'direct', u'name': u'well_done'}}, u'type': u'direct', u'description': u'Re-create the with-items bug with default values', u'version': u'2.0', u'name': u'with_items_default_bug'}, 'task_execution_id': None, 'workflow_id': u'ac1b74ea-32bc-4899-998a-e90822afe4c2', 'params': {}, 'context': {'__execution': {'input': {}, 'params': {}, 'id': u'84ab8b9e-4cd2-4473-bd7b-4fa2ac165f8a', 'spec': {u'tasks': {u'get_pages': {u'with-items': u'page in <% range(0, 1) %>', u'name': u'get_pages', u'on-success': [u'well_done'], u'version': '2.0', u'action': u'test.http', u'input': {u'url': u'http://www.example.com', u'method': u'GET'}, u'type': u'direct'}, u'well_done': {u'action': u'std.echo output="Well done"', u'version': '2.0', u'type': u'direct', u'name': u'well_done'}}, u'type': u'direct', u'description': u'Re-create the with-items bug with default values', u'version': u'2.0', u'name': u'with_items_default_bug'}}}, 'input': {}, 'scope': 'private', 'project_id': '<default-project>', 'type': 'workflow_execution', 'id': u'84ab8b9e-4cd2-4473-bd7b-4fa2ac165f8a', 'description': u''}, task=get_pages]: Can not evaluate YAQL expression: $.timeout , data = {u'url': u'http://www.example.com', u'method': u'GET'}; error: u'timeout'
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/task_handler.py", line 42, in run_task
task.run()
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/tasks.py", line 228, in run
self._run_new()
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/tasks.py", line 259, in _run_new
self._schedule_actions()
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/tasks.py", line 394, in _schedule_actions
action.schedule(input_dict, target, index=idx)
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/actions.py", line 212, in schedule
self._prepare_input(input_dict),
File "/usr/local/lib/python2.7/dist-packages/mistral/engine/actions.py", line 320, in _prepare_input
input_dict
File "/usr/local/lib/python2.7/dist-packages/mistral/expressions.py", line 203, in evaluate_recursively
data[key] = _evaluate_item(data[key], context)
File "/usr/local/lib/python2.7/dist-packages/mistral/expressions.py", line 186, in _evaluate_item
return evaluate(item, context)
File "/usr/local/lib/python2.7/dist-packages/mistral/expressions.py", line 180, in evaluate
return _EVALUATOR.evaluate(expression, context)
File "/usr/local/lib/python2.7/dist-packages/mistral/expressions.py", line 146, in evaluate
cls).evaluate(trim_expr, data_context)
File "/usr/local/lib/python2.7/dist-packages/mistral/expressions.py", line 95, in evaluate
" %s" % (expression, data_context, str(e))
YaqlEvaluationException: Can not evaluate YAQL expression: $.timeout , data = {u'url': u'http://www.example.com', u'method': u'GET'}; error: u'timeout'
Fix proposed to branch: master
Review: https:/