django viewflow testing

Question

我使用 Django Viewflow 就像一个没有 gui 的流量引擎。 任何人都可以发布以编程方式创建流程和流管理的示例吗？我不明白如何在没有前端的情况下完全从 django 代码(例如来自测试类)管理流。是否需要先创建流实例？我如何知道我必须执行哪个任务以及如何执行它？我只需要使用没有 gui 的视图流

提前感谢！

我的应用/模型.py

class MedicalParameters(models.Model):
# medical parameters
pas = models.IntegerField(verbose_name="Pressione Sistolica")
pad = models.IntegerField(verbose_name="Pressione Diastolica")
fc = models.IntegerField(verbose_name="Frequenza Cardiaca")
class Triage(models.Model):
date = models.DateTimeField(auto_now=True)
patient_id = models.CharField(max_length=20)
first_name = models.CharField(max_length=150)
last_name = models.CharField(max_length=150)
birth_date = models.DateField(auto_now=False)
sex = models.CharField(max_length=1, choices=SEX, default='M')
# Medical Parameters
parameters = models.ForeignKey(MedicalParameters, blank=True, null=True,
on_delete=models.PROTECT)

class TriageProcess(Process):
triage = models.ForeignKey(Triage, blank=True, null=True, on_delete=models.CASCADE)
class Meta:
verbose_name_plural = 'Triage process'

我的应用/流.py

class TriageFlow(Flow):
process_class = TriageProcess
process_title = 'Processo di Triage'
process_description = 'Processo di Triage'
summary_template = """
Triage di {{ process.triage.first_name }} {{ process.triage.last_name }}
"""
start = (
flow.Start(
views.StartView,
task_title="Nuovo Triage",
task_description="Inizia Triege"
).Permission(
auto_create=True
).Next(this.register_measures)
)
register_measures = (
flow.View(
views.MeasuresView,
# fields=["parameters"],
task_description="Acquisisci Misure",
task_title='Misure da Multiparametrico'
)
.Assign(lambda act: act.process.created_by)
.Next(this.choose_capitolo)
)

我的应用/视图.py

class StartView(StartFlowMixin, generic.UpdateView):
form_class = TriageForm
layout = Layout(
Row('patient_id'),
Fieldset('Patient Details',
Row('first_name', 'last_name', 'birth_date'),
Row('sex',
# 'age'
)
)
)
def get_object(self):
return self.activation.process.triage
def activation_done(self, form):
triage = form.save()
self.activation.process.triage = triage
self.activation.process.triage.color = COLOR_VALUE.BIANCO
super(StartView, self).activation_done(form)
# super(StartView, self).activation_done(form)

class MeasuresView(FlowMixin, generic.UpdateView):
form_class = MedicalParametersForm
layout = Layout(
Fieldset('Temperatura ( C )',
Row('temp')),
Fieldset('Pressione',
Row('pas'),
Row('pad')),
Fieldset('Frequenza',
Row('fc'),
Row('fr'),
Row('fio2')),
Fieldset("Analisi Cliniche",
Row('so2'),
Row('ph')),
Fieldset('Emogas',
Row('pao2'),
Row('paco2'),
Row('hco3')),
Fieldset("Indici",
Row('gcs')
# Row('shock')
))
def get_object(self):
return self.activation.process.triage.parameters
def activation_done(self, form):
_measures = form.save()
self.activation.process.triage.parameters = _measures
if not self.activation.process.triage.parameters.fc is None 
and not self.activation.process.triage.parameters.pas is None:
self.activation.process.triage.parameters.shock = self.activation.process.triage.parameters.fc / self.activation.process.triage.parameters.pas
self.activation.process.triage.parameters.save()
color = _measures.calculate_color()
self.activation.process.triage.color = color
self.activation.process.triage.rivalutazione = None
self.activation.process.triage.save()
super(MeasuresView, self).activation_done(form)

Answer 1

作为流程一部分的测试视图会限制您在测试中可以执行的操作。例如，在同一流中为特定视图添加模板和模板变量的测试变得很麻烦。

如果您要进行彻底的测试。您的测试规模会爆炸到不希望的水平。

绕过每个视图都要求完成上一个任务的事实。 您可以使用工厂男孩创建与视图关联的特定流任务。并使用后生成钩子运行必要的激活，这意味着您可以像测试中的其他普通 django 视图一样调用视图。

flows.py

from viewflow import flow
from viewflow.base import Flow, this
from .views import SampleCreateView, SampleUpdateViewOne, SampleUpdateViewTwo
class SampleFlow(Flow):
start = flow.Start(SampleCreateView).Next(this.update_one)
update_one = flow.View(SampleUpdateViewOne).Next(this.update_two)
update_two = flow.View(SampleUpdateViewTwo).Next(this.end)
end = flow.End()

测试/工厂.py

class TaskFactory(factory.django.DjangoModelFactory):
class Meta:
model = Task
process = factory.SubFactory(SampleProcessFactory)
flow_task = SampleFlow.start
owner = factory.SubFactory(UserFactory)
token = 'START'
@factory.post_generation
def run_activations(self, create, extracted, **kwargs):
activation = self.activate()
if hasattr(activation, 'assign'):
activation.assign()

测试/test_views.py

class TestSampleFlowUpdateViewTwo(TestCase):
def setUp(self):
self.process = SampleProcessFactory()
self.task_owner = UserFactory()
self.task = TaskFactory(process=self.process, 
flow_task=SampleFlow.update_two, owner=self.task_owner)
self.url = reverse('unittest_viewflow:sampleflow:update_two',
kwargs={'process_pk': self.process.pk, 'task_pk': self.task.pk})
def test_get(self):
self.client.force_login(self.task_owner)
response = self.client.get(self.url)
self.assertTrue(response.status_code, 200)
def test_post(self):
self.client.force_login(self.task_owner)
data = {'_viewflow_activation-started': '1970-01-01', 'update_two': 'Update Two'}
response = self.client.post(self.url, data=data)
self.assertEqual(Task.objects.get(pk=self.task.pk).status, 'DONE')

有关更多信息，您可以查看此存储库

Answer 2

要在 TestClass 中测试流程，你可以像往常一样使用 django TestClient。只需重复与在浏览器中手动执行的相同步骤即可。

您可以查看示例 HelloWorld 演示测试 - https://github.com/viewflow/cookbook/blob/master/helloworld/demo/tests.py

class Test(TestCase):
def setUp(self):
User.objects.create_superuser('admin', '[e-mail]', 'password')
self.client.login(username='admin', password='password')
def testApproved(self):
self.client.post(
'/workflow/helloworld/helloworld/start/',
{'text': 'Hello, world',
'_viewflow_activation-started': '2000-01-01'}
)
self.client.post(
'/workflow/helloworld/helloworld/1/approve/2/assign/'
)
self.client.post(
'/workflow/helloworld/helloworld/1/approve/2/',
{'approved': True,
'_viewflow_activation-started': '2000-01-01'}
)
process = Process.objects.get()
self.assertEquals('DONE', process.status)
self.assertEquals(5, process.task_set.count())

Answer 3

请参阅此答案，其中显示了如何将编程起点与正常的"手动"起点一起添加到 Flow 中：

class MyRunFlow(flow.Flow):
process_class = Run
start = flow.Start(ProcessCreate, fields=['schedule']). 
Permission(auto_create=True). 
Next(this.wait_data_collect_start)
start2 = flow.StartFunction(process_create). 
Next(this.wait_data_collect_start)

请注意，重要的一点是process_create具有Process对象，并且此代码必须以编程方式设置与手动表单提交通过字段规范执行的相同字段，以ProcessCreate：

@flow_start_func
def process_create(activation: FuncActivation, **kwargs):
#
# Update the database record.
#
db_sch = Schedule.objects.get(id=kwargs['schedule'])
activation.process.schedule = db_sch # <<<< Same fields as ProcessCreate
activation.process.save()
#
# Go!
#
activation.prepare()
with Context(propagate_exception=False):
activation.done()
return activation

需要注意的是，一旦以编程方式启动流程，序列中的任何非手动任务都会自动执行

有一个导入警告，没有提到我在这里描述的一系列非手动任务中的错误处理，我给出了部分答案(我不知道完整的答案，这就是发布问题的原因！);这就是with Context()部分的原因。

@kmmbvnr对原始线程的第一个答案还包含有关如何随后以编程方式操作任务的提示。因此，当您的流程到达手动任务时，您可以分配它，依此类推。