Class: Solr::Request::Standard

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

Direct Known Subclasses

Dismax

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]

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) ⇒ Standard

Returns a new instance of Standard.



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

def initialize(params)
  super('standard')
  
  raise "Invalid parameters: #{(params.keys - VALID_PARAMS).join(',')}" unless 
    (params.keys - VALID_PARAMS).empty?
  
  raise ":query parameter required" unless params[:query]
  
  @params = params.dup
  
  # Validate operator
  if params[:operator]
    raise "Only :and/:or operators allowed" unless 
      [:and, :or].include?(params[:operator])
      
    @params[:operator] = params[:operator].to_s.upcase
  end

  # Validate start, rows can be transformed to ints
  @params[:start] = params[:start].to_i if params[:start]
  @params[:rows] = params[:rows].to_i if params[:rows]
  
  @params[:field_list] ||= ["*","score"]
  
  @params[:shards] ||= []
end

Instance Method Details

#to_hash ⇒ Object 



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# File 'lib/solr/request/standard.rb', line 45

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]
  hash[:rows] = @params[:rows]
  hash[:fq] = @params[:filter_queries]
  hash[:fl] = @params[:field_list].join(',')
  hash[:debugQuery] = @params[:debug_query]
  hash[:explainOther] = @params[:explain_other]
  hash[:shards] = @params[:shards].join(',') unless @params[:shards].empty?
  
  # facet parameter processing
  if @params[:facets]
    # TODO need validation of all that is under the :facets Hash too
    hash[:facet] = true
    hash["facet.field"] = []
    hash["facet.query"] = @params[:facets][:queries]
    hash["facet.sort"] = (@params[:facets][:sort] == :count) if @params[:facets][:sort]
    hash["facet.limit"] = @params[:facets][:limit]
    hash["facet.missing"] = @params[:facets][:missing]
    hash["facet.mincount"] = @params[:facets][:mincount]
    hash["facet.prefix"] = @params[:facets][:prefix]
    hash["facet.offset"] = @params[:facets][:offset]
    if @params[:facets][:fields]  # facet fields are optional (could be facet.query only)
      @params[:facets][:fields].each do |f|
        if f.kind_of? Hash
          key = f.keys[0]
          value = f[key]
          hash["facet.field"] << key
          hash["f.#{key}.facet.sort"] = (value[:sort] == :count) if value[:sort]
          hash["f.#{key}.facet.limit"] = value[:limit]
          hash["f.#{key}.facet.missing"] = value[:missing]
          hash["f.#{key}.facet.mincount"] = value[:mincount]
          hash["f.#{key}.facet.prefix"] = value[:prefix]
          hash["f.#{key}.facet.offset"] = value[:offset]
        else
          hash["facet.field"] << f
        end
      end
    end
    
    if @params[:date_facets]
      hash["facet.date"] = []
      if @params[:date_facets][:fields]
        @params[:date_facets][:fields].each do |f|
          if f.kind_of? Hash
            key = f.keys[0]
            hash["facet.date"] << key
            f[key].each { |k, v|
              hash["f.#{key}.facet.date.#{k}"] = v
            }
          else
            hash["facet.date"] << f
          end
        end
      end
      hash["facet.date.start"] = @params[:date_facets][:start]
      hash["facet.date.end"] = @params[:date_facets][:end]
      hash["facet.date.gap"] = @params[:date_facets][:gap]
      hash["facet.date.other"] = @params[:date_facets][:other]
      hash["facet.date.hardend"] = @params[:date_facets][:hardend]
      if @params[:date_facets][:filter]
        if hash[:fq]
          hash[:fq] << @params[:date_facets][:filter]
        else
          hash[:fq] = @params[:date_facets][:filter]
        end
      end
    end
  end
  
  # highlighting parameter processing - http://wiki.apache.org/solr/HighlightingParameters
  if @params[:highlighting]
    hash[:hl] = true
    hash["hl.fl"] = @params[:highlighting][:field_list].join(',') if @params[:highlighting][:field_list]

    snippets = @params[:highlighting][:max_snippets]
    if snippets
      if snippets.kind_of? Hash
        if snippets[:default]
          hash["hl.snippets"] = snippets[:default]
        end
        if snippets[:fields]
          snippets[:fields].each do |k,v|
            hash["f.#{k}.hl.snippets"] = v
          end
        end
      else
        hash["hl.snippets"] = snippets
      end
    end

    fragsize = @params[:highlighting][:fragment_size]
    if fragsize
      if fragsize.kind_of? Hash
        if fragsize[:default]
          hash["hl.fragsize"] = fragsize[:default]
        end
        if fragsize[:fields]
          fragsize[:fields].each do |k,v|
            hash["f.#{k}.hl.fragsize"] = v
          end
        end
      else
        hash["hl.fragsize"] = fragsize
      end
    end

    rfm = @params[:highlighting][:require_field_match]
    if nil != rfm
      if rfm.kind_of? Hash
        if nil != rfm[:default]
          hash["hl.requireFieldMatch"] = rfm[:default]
        end
        if rfm[:fields]
          rfm[:fields].each do |k,v|
            hash["f.#{k}.hl.requireFieldMatch"] = v
          end
        end
      else
        hash["hl.requireFieldMatch"] = rfm
      end
    end

    mac = @params[:highlighting][:max_analyzed_chars]
    if mac
      if mac.kind_of? Hash
        if mac[:default]
          hash["hl.maxAnalyzedChars"] = mac[:default]
        end
        if mac[:fields]
          mac[:fields].each do |k,v|
            hash["f.#{k}.hl.maxAnalyzedChars"] = v
          end
        end
      else
        hash["hl.maxAnalyzedChars"] = mac
      end
    end

    prefix = @params[:highlighting][:prefix]
    if prefix
      if prefix.kind_of? Hash
        if prefix[:default]
          hash["hl.simple.pre"] = prefix[:default]
        end
        if prefix[:fields]
          prefix[:fields].each do |k,v|
            hash["f.#{k}.hl.simple.pre"] = v
          end
        end
      else
        hash["hl.simple.pre"] = prefix
      end
    end

    suffix = @params[:highlighting][:suffix]
    if suffix
      if suffix.kind_of? Hash
        if suffix[:default]
          hash["hl.simple.post"] = suffix[:default]
        end
        if suffix[:fields]
          suffix[:fields].each do |k,v|
            hash["f.#{k}.hl.simple.post"] = v
          end
        end
      else
        hash["hl.simple.post"] = suffix
      end
    end

    formatter = @params[:highlighting][:formatter]
    if formatter
      if formatter.kind_of? Hash
        if formatter[:default]
          hash["hl.formatter"] = formatter[:default]
        end
        if formatter[:fields]
          formatter[:fields].each do |k,v|
            hash["f.#{k}.hl.formatter"] = v
          end
        end
      else
        hash["hl.formatter"] = formatter
      end
    end

    fragmenter = @params[:highlighting][:fragmenter]
    if fragmenter
      if fragmenter.kind_of? Hash
        if fragmenter[:default]
          hash["hl.fragmenter"] = fragmenter[:default]
        end
        if fragmenter[:fields]
          fragmenter[:fields].each do |k,v|
            hash["f.#{k}.hl.fragmenter"] = v
          end
        end
      else
        hash["hl.fragmenter"] = fragmenter
      end
    end

    merge_contiguous = @params[:highlighting][:merge_contiguous]
    if nil != merge_contiguous
      if merge_contiguous.kind_of? Hash
        if nil != merge_contiguous[:default]
          hash["hl.mergeContiguous"] = merge_contiguous[:default]
        end
        if merge_contiguous[:fields]
          merge_contiguous[:fields].each do |k,v|
            hash["f.#{k}.hl.mergeContiguous"] = v
          end
        end
      else
        hash["hl.mergeContiguous"] = merge_contiguous
      end
    end

    increment = @params[:highlighting][:increment]
    if increment
      if increment.kind_of? Hash
        if increment[:default]
          hash["hl.increment"] = increment[:default]
        end
        if increment[:fields]
          increment[:fields].each do |k,v|
            hash["f.#{k}.hl.increment"] = v
          end
        end
      else
        hash["hl.increment"] = increment
      end
    end

    # support "old style"
    alternate_fields = @params[:highlighting][:alternate_fields]
    if alternate_fields
      alternate_fields.each do |f,v|
        hash["f.#{f}.hl.alternateField"] = v
      end
    end

    alternate_field = @params[:highlighting][:alternate_field]
    if alternate_field
      if alternate_field.kind_of? Hash
        if alternate_field[:default]
          hash["hl.alternateField"] = alternate_field[:default]
        end
        if alternate_field[:fields]
          alternate_field[:fields].each do |k,v|
            hash["f.#{k}.hl.alternateField"] = v
          end
        end
      else
        hash["hl.alternateField"] = alternate_field
      end
    end

    mafl = @params[:highlighting][:max_alternate_field_length]
    if mafl
      if mafl.kind_of? Hash
        if mafl[:default]
          hash["hl.maxAlternateFieldLength"] = mafl[:default]
        end
        if mafl[:fields]
          mafl[:fields].each do |k,v|
            hash["f.#{k}.hl.maxAlternateFieldLength"] = v
          end
        else
          # support "old style"
          mafl.each do |k,v|
            hash["f.#{k}.hl.maxAlternateFieldLength"] = v
          end
        end
      else
        hash["hl.maxAlternateFieldLength"] = mafl
      end
    end

    hash["hl.usePhraseHighlighter"] = @params[:highlighting][:use_phrase_highlighter]

    regex = @params[:highlighting][:regex]
    if regex
      if regex[:slop]
        if regex[:slop].kind_of? Hash
          if regex[:slop][:default]
            hash["hl.regex.slop"] = regex[:slop][:default]
          end
          if regex[:slop][:fields]
            regex[:slop][:fields].each do |k,v|
              hash["f.#{k}.hl.regex.slop"] = v
            end
          end
        else
          hash["hl.regex.slop"] = regex[:slop]
        end
      end
      if regex[:pattern]
        if regex[:pattern].kind_of? Hash
          if regex[:pattern][:default]
            hash["hl.regex.pattern"] = regex[:pattern][:default]
          end
          if regex[:pattern][:fields]
            regex[:pattern][:fields].each do |k,v|
              hash["f.#{k}.hl.regex.pattern"] = v
            end
          end
        else
          hash["hl.regex.pattern"] = regex[:pattern]
        end
      end
      if regex[:max_analyzed_chars]
        if regex[:max_analyzed_chars].kind_of? Hash
          if regex[:max_analyzed_chars][:default]
            hash["hl.regex.maxAnalyzedChars"] = regex[:max_analyzed_chars][:default]
          end
          if regex[:max_analyzed_chars][:fields]
            regex[:max_analyzed_chars][:fields].each do |k,v|
              hash["f.#{k}.hl.regex.maxAnalyzedChars"] = v
            end
          end
        else
          hash["hl.regex.maxAnalyzedChars"] = regex[:max_analyzed_chars]
        end
      end
    end

  end
  
  if @params[:mlt]
    hash[:mlt] = true
    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