event_routing_backends.processors.openedx_filters package#

Submodules#

event_routing_backends.processors.openedx_filters.decorators module#

Decorators that helps to implement the Processor filter functionality.

event_routing_backends.processors.openedx_filters.decorators.openedx_filter(filter_type)#

This decorator allows to implement the ProcessorBaseFilter on multiple class methods and intends to modify the returned value from methods like get_actor or get_objects in cases where the standard output doesn’t satisfy the implementation requirements.

Parameters

filter_type – String that defines the filter_type attribute of ProcessorBaseFilter, this allows to identify the configuration setting.

Example

  1. Decorate your method:

    @openedx_filter(filter_type=”this.will.be.the.filter.key”) def get_object(self):

    …

  2. Set the openedx filter config in your environment variables.

    OPEN_EDX_FILTERS_CONFIG = {
    “this.will.be.the.filter.key”: {

    “pipeline”: [“path.to.an.external.pipeline.step”], “fail_silently”: False,

    }

    }

  3. More details about filters openedx/openedx-filters

event_routing_backends.processors.openedx_filters.exceptions module#

Custom processors exceptions thrown by filters.

exception event_routing_backends.processors.openedx_filters.exceptions.InvalidFilterType(message='', redirect_to=None, status_code=None, **kwargs)#

Bases: openedx_filters.exceptions.OpenEdxFilterException

Exception that indicates that the attribute filter_type has not been set property.

event_routing_backends.processors.openedx_filters.filters module#

Processors filters, this file aims to contain all the filters that could modify the standard transformer results by implementing external pipeline steps.

class event_routing_backends.processors.openedx_filters.filters.ProcessorBaseFilter#

Bases: openedx_filters.tooling.OpenEdxPublicFilter

This is a general filter class that applies the open edx filter in multiple scenarios, its functionality is limited to one input one output therefore this only can be applied in method that returns a unique value.

classmethod generate_dynamic_filter(filter_type)#

This generates a sub class of ProcessorBaseFilter with the filter_type attribute.

Parameters

filter_type – String the defines the filter key on the OPEN_EDX_FILTERS_CONFIG section

Returns

This new class includes the filter_type attribute.

Return type

ProcessorBaseFilter sub-class

classmethod run_filter(transformer, result)#

Executes a filter after validating the right class configuration.

Parameters

  • transformer – XApiTransformer instance.

  • result – Result to be modified or extended.

Returns

This value comes from the dictionary returned by run_pipeline and will vary

depends on the implemented pipelines.

Return type

result

Raises

InvalidFilterType – if the ProcessorBaseFilter is used instead of a dynamic filter.

Module contents#