Module: BlacklightFacetExtras::Hierarchy::ControllerExtension

Defined in:
lib/blacklight_facet_extras/hierarchy/controller_extension.rb

Overview

Meant to be applied on top of a controller that implements Blacklight::SolrHelper. Will inject hierarchy limiting behaviors to solr parameters creation.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(some_class) ⇒ Object 



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# File 'lib/blacklight_facet_extras/hierarchy/controller_extension.rb', line 5

def self.included(some_class)
  some_class.send :include,BlacklightFacetExtras::ControllerExtension
  some_class.helper_method :facet_hierarchy_config
  some_class.helper_method :blacklight_hierarchy_config
  some_class.solr_search_params_logic << :add_hierarchy_facets_to_solr
  some_class.helper BlacklightFacetExtras::Hierarchy::ViewHelperExtension
end

Instance Method Details

#add_hierarchy_facets_to_solr(solr_parameters, user_parameters) ⇒ Object 



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# File 'lib/blacklight_facet_extras/hierarchy/controller_extension.rb', line 12

def add_hierarchy_facets_to_solr(solr_parameters, user_parameters)
  blacklight_hierarchy_config.each do |k, config|

    fq = (solr_parameters[:fq] || []).select { |x| x.starts_with? "{!raw f=#{k}}" }.first.to_s

    value = fq.gsub("{!raw f=#{k}}", "")
    solr_parameters[:fq] ||= []
    solr_parameters[:fq].delete(fq)

    if value.blank?
      solr_parameters[:"f.#{k}.facet.prefix"] ||= "1/" 
    else
      solr_parameters[:fq] << "{!raw f=#{k}}#{value.count("/") + 1}/#{value}"
      solr_parameters[:"f.#{k}.facet.prefix"] ||= "#{value.count("/") + 2}/#{value}/"
    end
  end

  solr_parameters
end

#blacklight_hierarchy_config ⇒ Object 



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# File 'lib/blacklight_facet_extras/hierarchy/controller_extension.rb', line 37

def blacklight_hierarchy_config
  Blacklight.config[:facet][:hierarchy] || {}
end

#facet_hierarchy_config(solr_field) ⇒ Object 



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# File 'lib/blacklight_facet_extras/hierarchy/controller_extension.rb', line 31

def facet_hierarchy_config(solr_field)
  config = blacklight_hierarchy_config[solr_field] || false
  config = {} if config == true
  config
end