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module Blacklight
class FieldRetriever
# @param [SolrDocument] document
# @param [Blacklight::Configuration::Field] field_config solr field configuration
def initialize(document, field_config)
@document = document
@field_config = field_config
end
attr_reader :document, :field_config
delegate :field, to: :field_config
# @return [Array]
def fetch
Array.wrap(
if field_config.highlight
retrieve_highlight
elsif field_config.accessor
retieve_using_accessor
elsif field_config
retrieve_simple
end
)
end
private
def retrieve_simple
# regular document field
if field_config.default and field_config.default.is_a? Proc
document.fetch(field_config.field, &field_config.default)
else
document.fetch(field_config.field, field_config.default)
end
end
def retieve_using_accessor
# implicit method call
if field_config.accessor == true
document.send(field)
# arity-1 method call (include the field name in the call)
elsif !field_config.accessor.is_a?(Array) && document.method(field_config.accessor).arity.nonzero?
document.send(field_config.accessor, field)
# chained method calls
else
Array(field_config.accessor).inject(document) do |result, method|
result.send(method)
end
end
end
def retrieve_highlight
# retrieve the document value from the highlighting response
document.highlight_field(field_config.field).map(&:html_safe) if document.has_highlight_field? field_config.field
end
end
end
Version data entries
31 entries across 31 versions & 1 rubygems