Class: RESTFramework::ModelFilter

Inherits:
BaseFilter show all
Defined in:
lib/rest_framework/filters.rb

Overview

A simple filtering backend that supports filtering a recordset based on fields defined on the controller class.

Instance Method Summary collapse

Methods inherited from BaseFilter

#initialize

Constructor Details

This class inherits a constructor from RESTFramework::BaseFilter

Instance Method Details

#_get_fields ⇒ Object

Get a list of filterset fields for the current action. Fallback to columns because we don’t want to try filtering by any query parameter because that could clash with other query parameters.



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# File 'lib/rest_framework/filters.rb', line 16

def _get_fields
  return @controller.class.filterset_fields || @controller.get_fields(fallback: true)
end

#_get_filter_params ⇒ Object

Filter params for keys allowed by the current action’s filterset_fields/fields config.



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# File 'lib/rest_framework/filters.rb', line 21

def _get_filter_params
  # Map filterset fields to strings because query parameter keys are strings.
  if fields = self._get_fields.map(&:to_s)
    return @controller.request.query_parameters.select { |p, _| fields.include?(p) }
  end

  return @controller.request.query_parameters.to_h
end

#get_filtered_data(data) ⇒ Object

Filter data according to the request query parameters.



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# File 'lib/rest_framework/filters.rb', line 31

def get_filtered_data(data)
  filter_params = self._get_filter_params.symbolize_keys
  unless filter_params.blank?
    return data.where(**filter_params)
  end

  return data
end