Module: BlacklightFacetExtras::Range::ControllerExtension

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

Overview

Meant to be applied on top of a controller that implements Blacklight::SolrHelper. Will inject range 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/range/controller_extension.rb', line 6

def self.included(some_class)
  some_class.send :include,BlacklightFacetExtras::ControllerExtension
  some_class.solr_search_params_logic << :add_range_facets_to_solr
  some_class.helper_method :facet_range_config
  some_class.helper BlacklightFacetExtras::Range::ViewHelperExtension
end

Instance Method Details

#add_range_facets_to_solr(solr_parameters, user_parameters) ⇒ Object 



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

def add_range_facets_to_solr(solr_parameters, user_parameters)
  solr_parameters['facet.range.other'] = 'all'
  blacklight_range_config.each do |k, config|
    solr_parameters['facet.range'] = k

    solr_parameters[:fq] ||= []
    fq = solr_parameters[:fq].select { |x| x.starts_with?("{!raw f=#{k}}") and x =~ /\[.* TO .*\]/ }.map { |x| solr_parameters[:fq].delete(x) }.map { |x| x.gsub("{!raw f=#{k}}", "") }.map { |x| x.scan(/\[(.*) TO (.*)\]/).first }

    range_start = fq.map { |x| x.first }.max
    range_end = fq.map { |x| x.last }.min
    range_gap = ((range_end.to_i - range_start.to_i) / (facet_limit_for(k) || 10)) if range_start and range_end


    solr_parameters["f.#{k}.facet.range.start"] = range_start || config[:start]
    solr_parameters["f.#{k}.facet.range.end"] = range_end || config[:end]
    solr_parameters["f.#{k}.facet.range.gap"] = range_gap || config[:gap]
    solr_parameters["f.#{k}.facet.mincount"] = config[:mincount] if config[:mincount]

    solr_parameters[:fq] << "#{k}:[#{range_start} TO #{range_end}]" if range_start and range_end
  end
end

#blacklight_range_config ⇒ Object 



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# File 'lib/blacklight_facet_extras/range/controller_extension.rb', line 40

def blacklight_range_config
  Blacklight.config[:facet][:rangex] || {}
end

#facet_range_config(solr_field) ⇒ Object 



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# File 'lib/blacklight_facet_extras/range/controller_extension.rb', line 34

def facet_range_config(solr_field)
  config = blacklight_range_config[solr_field] || false
  config = {} if config == true
  config
end