edc-model-wrapper

Wrap a model instance with a custom wrapper to add methods needed for Edc Dashboards and Listboards.

class ExampleModelWrapper(ModelWrapper):
    model = 'edc_model_wrapper.example'
    next_url_name = 'edc-model-wrapper:listboard_url'
    next_url_attrs = ['f1']
    querystring_attrs = ['f2', 'f3']

    def hello(self):
        return 'hello'

    def goodbye(self):
        return 'goodbye'

Instantiate with a model instance, persisted or not:

model_obj = Example(f1=1, f2=2, f3=3)
wrapper = ExampleExampleModelWrapper(model_obj=model_obj)

Get the “admin” url with “next” for model objects in a Listboard, Dabsboard, etc,

>>> wrapper.href
'/admin/edc_model_wrapper/example/add/?next=edc-model-wrapper:listboard_url,f1&f1=1&f2=2&f3=3'

Get the admin url without the “next” querystring data:

>>> wrapper.admin_url_name
'/admin/edc_model_wrapper/example/add/'

Reverse the next_url:

>>> wrapper.reverse()
'/listboard/1/'

Attribute model is a model class regardless of how it was declared:

>>> assert wrapper.model == Example
True

All field attributes are converted to string and added to the wrapper, except foreign keys:

>>> wrapper.f1
1
>>> wrapper.f2
2

Custom methods/properties are, of course, available:

>>> wrapper.hello()
'hello'
>>> wrapper.goodbye()
'goodbye'

The original object is accessible, if needed:

>>> wrapper.object
<Example>

for example to access original field values:

>>> wrapper.report_datetime
'2017-06-01 15:04:41.760296'

>>> wrapper.object.report_datetime
datetime.datetime(2017, 6, 1, 15, 4, 55, 594512)