尝试创建自定义分析器来实现其他词干提取功能等。查看我的示例(此示例还使用了 Mongoid & 附件,如果您不需要它,请不要看):
class Document
include Mongoid::Document
include Mongoid::Timestamps
include Tire::Model::Search
include Tire::Model::Callbacks
field :filename, type: String
field :md5, type: String
field :tags, type: String
field :size, type: String
index({md5: 1}, {unique: true})
validates_uniqueness_of :md5
DEFAULT_PAGE_SIZE = 10
settings :analysis => {
:filter => {
:ngram_filter => {
:type => "edgeNGram",
:min_gram => 2,
:max_gram => 12
},
:custom_word_delimiter => {
:type => "word_delimiter",
:preserve_original => "true",
:catenate_all => "true",
}
}, :analyzer => {
:index_ngram_analyzer => {
:type => "custom",
:tokenizer => "standard",
:filter => ["lowercase", "ngram_filter", "asciifolding", "custom_word_delimiter"]
},
:search_ngram_analyzer => {
:type => "custom",
:tokenizer => "standard",
:filter => ["standard", "lowercase", "ngram_filter", "custom_word_delimiter"]
},
:suggestions => {
:tokenizer => "standard",
:filter => ["suggestions_shingle"]
}
}
} do
mapping {
indexes :id, index: :not_analyzed
indexes :filename, :type => 'string', :store => 'yes', :boost => 100, :search_analyzer => :search_ngram_analyzer, :index_analyzer => :index_ngram_analyzer
indexes :tags, :type => 'string', :store => 'yes', :search_analyzer => :search_ngram_analyzer, :index_analyzer => :index_ngram_analyzer
indexes :attachment, :type => 'attachment',
:fields => {
:content_type => {:store => 'yes'},
:author => {:store => 'yes', :analyzer => 'keyword'},
:title => {:store => 'yes'},
:attachment => {:term_vector => 'with_positions_offsets', :boost => 90, :store => 'yes', :search_analyzer => :search_ngram_analyzer, :index_analyzer => :index_ngram_analyzer},
:date => {:store => 'yes'}
}
}
end
def to_indexed_json
self.to_json(:methods => [:attachment])
end
def attachment
path_to_file = "#{Rails.application.config.document_library}#{path}/#{filename}"
Base64.encode64(open(path_to_file) { |file| file.read })
end
def self.search(query, options)
tire.search do
query { string "#{query}", :default_operator => :AND, :default_field => 'attachment', :fields => ['filename', 'attachment', 'tags'] }
highlight :attachment
page = (options[:page] || 1).to_i
search_size = options[:per_page] || DEFAULT_PAGE_SIZE
from (page -1) * search_size
size search_size
sort { by :_score, :desc }
if (options[:facet])
filter :terms, :tags => [options[:facet]]
facet 'global-tags', :global => true do
terms :tags
end
facet 'current-tags' do
terms :tags
end
end
end
end
end
希望能帮助到你,