stadtratmonitor/app/controllers/search_controller.rb

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SearchFacet = Struct.new("SearchFacet", :term, :count) do
def term_with_count
"#{term} (#{count})"
end
end
class SearchController < ApplicationController
def index
@search_definition = PaperSearch.new(search_params)
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@search_definition.sort_by ||= "date"
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execute_search
end
def show
@search_definition = PaperSearch.find params[:id]
execute_search
render action: "index"
end
private
def execute_search
@response = Paper.search(@search_definition.to_definition)
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@papers = @response.page(params[:page]).results
@sub = Hash.new
@papers.each do |paper|
unless paper.reference.nil? && paper.reference.contains("-")
segments = paper.reference.split("-")
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id = ((paper.reference.start_with?("VI-") || paper.reference.start_with?("VII-")) && segments.count > 2 ?
segments[2] : segments[1])
escaped_chars = Regexp.escape('\\+-*:()[]{}&!?^|\/')
sanitized_id = id.gsub(/([#{escaped_chars}])/, '\\\\\1')
['AND', 'OR', 'NOT'].each do |reserved|
escaped_reserved = reserved.split('').map { |c| "\\#{c}" }.join('')
sanitized_id = sanitized_id.gsub('/\s*\b(#{reserved.upcase})\b\s*/',
" #{escaped_reserved} ")
end
@sub_search_definition = Elasticsearch::DSL::Search.search do
query do
query_string do
query "*" + sanitized_id + "*"
fields ["reference"]
end
end
sort do
by :published_at, order: 'desc'
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by :reference, order: 'desc'
end
end
@sub_papers = Paper.search(@sub_search_definition)
@sub[paper.reference] = @sub_papers
end
end
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@paper_type_facets = extract_facets('paper_types')
@originator_facets = extract_facets('originators')
end
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def search_params
params.fetch(:paper_search, {}).permit(:query, :paper_type, :originator, :sort_by)
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end
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def extract_facets(name)
@response.
response['aggregations'][name.to_s][name.to_s]['buckets'].
map {|m| SearchFacet.new(m['key'], m['doc_count'])}
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end
end