Class: Solr::Request::Mlt

Inherits:
Select show all
Defined in:
lib/solr/request/mlt.rb

Overview

The ASF licenses this file to You under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Constant Summary collapse

VALID_PARAMS =
[:query, :sort, :default_field, :operator, :start, :rows, :shards, :date_facets,
:filter_queries, :field_list, :debug_query, :explain_other, :facets, :highlighting, :mlt, 'stream.url']

Instance Attribute Summary

Attributes inherited from Select

#query_type

Instance Method Summary collapse

Methods inherited from Select

#content_type, #handler, #response_format, #to_s

Methods inherited from Base

#content_type, #handler, #response_format

Constructor Details

#initialize(params) ⇒ Mlt

Returns a new instance of Mlt.


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# File 'lib/solr/request/mlt.rb', line 18

def initialize(params)
  super('mlt', params)
  
  raise "Invalid parameters: #{(params.keys - VALID_PARAMS).join(',')}" unless 
    (params.keys - VALID_PARAMS).empty?
  
  raise "'stream.url' parameter required" unless params['stream.url']
  
  @params = params.dup
  
  @params[:field_list] ||= ["pk_i","score"]
end

Instance Method Details

#to_hashObject


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# File 'lib/solr/request/mlt.rb', line 31

def to_hash
  hash = {}
  
  # standard request param processing
  sort = @params[:sort].collect do |sort|
    key = sort.keys[0]
    "#{key.to_s} #{sort[key] == :descending ? 'desc' : 'asc'}"
  end.join(',') if @params[:sort]
  #hash[:q] = sort ? "#{@params[:query]};#{sort}" : @params[:query]
  hash["q.op"] = @params[:operator]
  hash[:df] = @params[:default_field]

  # common parameter processing
  hash[:start] = @params[:start] || '0'
  hash[:rows] = @params[:rows] || '10'
  hash[:fq] = @params[:filter_queries]
  hash[:fl] = @params[:field_list].join(',') 
  hash[:debugQuery] = @params[:debug_query]
  hash[:explainOther] = @params[:explain_other]
  
  hash[:qt] = 'mlt'
  hash[:wt] = 'ruby'
  hash['stream.url'] = @params[:query]
  
#    hash[:mlt] = true
  if @params[:mlt]
    hash["mlt.count"] = @params[:mlt][:count]
    hash["mlt.fl"] = @params[:mlt][:field_list].join(',')
    hash["mlt.mintf"] = @params[:mlt][:min_term_freq]
    hash["mlt.mindf"] = @params[:mlt][:min_doc_freq]
    hash["mlt.minwl"] = @params[:mlt][:min_word_length]
    hash["mlt.maxwl"] = @params[:mlt][:max_word_length]
    hash["mlt.maxqt"] = @params[:mlt][:max_query_terms]
    hash["mlt.maxntp"] = @params[:mlt][:max_tokens_parsed]
    hash["mlt.boost"] = @params[:mlt][:boost]
  end
  
  hash.merge(super.to_hash)
end