Module: Mongoid::Search::ClassMethods

Defined in:
lib/mongoid_search/mongoid_search.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#index_keywords! ⇒ Object

Goes through all documents in the class that includes Mongoid::Search and indexes the keywords.



96
97
98
 
# File 'lib/mongoid_search/mongoid_search.rb', line 96

def index_keywords!
  all.each { |d| d.index_keywords! ? Log.green(".") : Log.red("F") }
end

#search(query, options = {}) ⇒ Object Also known as: csearch 



35
36
37
38
39
40
41
 
# File 'lib/mongoid_search/mongoid_search.rb', line 35

def search(query, options={})
  if relevant_search
    search_relevant(query, options)
  else
    search_without_relevance(query, options)
  end
end

#search_in(*args) ⇒ Object

Set a field or a number of fields as sources for search



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
 
# File 'lib/mongoid_search/mongoid_search.rb', line 19

def search_in(*args)
  options = args.last.is_a?(Hash) && [:match, :allow_empty_search, :relevant_search, :stem_keywords, :ignore_list].include?(args.last.keys.first) ? args.pop : {}
  self.match              = [:any, :all].include?(options[:match]) ? options[:match] : :any
  self.allow_empty_search = [true, false].include?(options[:allow_empty_search]) ? options[:allow_empty_search] : false
  self.relevant_search    = [true, false].include?(options[:relevant_search]) ? options[:allow_empty_search] : false
  self.stem_keywords      = [true, false].include?(options[:stem_keywords]) ? options[:allow_empty_search] : false
  self.ignore_list        = YAML.load(File.open(options[:ignore_list]))["ignorelist"] if options[:ignore_list].present?
  self.search_fields      = (self.search_fields || []).concat args

  field :_keywords, :type => Array
  
  Gem.loaded_specs["mongoid"].version.to_s.include?("3.0") ? (index({_keywords: 1}, {background: true})) : (index :_keywords, :background => true)

  before_save :set_keywords
end

#search_relevant(query, options = {}) ⇒ Object 



52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
 
# File 'lib/mongoid_search/mongoid_search.rb', line 52

def search_relevant(query, options={})
  return criteria.all if query.blank? && allow_empty_search

  keywords = Util.normalize_keywords(query, stem_keywords, ignore_list)

  map = <<-EOS
    function() {
      var entries = 0
      for(i in keywords)
        for(j in this._keywords) {
          if(this._keywords[j] == keywords[i])
            entries++
        }
      if(entries > 0)
        emit(this._id, entries)
    }
  EOS
  reduce = <<-EOS
    function(key, values) {
      return(values[0])
    }
  EOS

  #raise [self.class, self.inspect].inspect

  kw_conditions = keywords.map do |kw|
    {:_keywords => kw}
  end

  criteria = (criteria || self).any_of(*kw_conditions)

  query = criteria.selector

  options.delete(:limit)
  options.delete(:skip)
  options.merge! :scope => {:keywords => keywords}, :query => query

  # res = collection.map_reduce(map, reduce, options)
  # res.find.sort(['value', -1]) # Cursor
  collection.map_reduce(map, reduce, options)
end

#search_without_relevance(query, options = {}) ⇒ Object 



47
48
49
50
 
# File 'lib/mongoid_search/mongoid_search.rb', line 47

def search_without_relevance(query, options={})
  return criteria.all if query.blank? && allow_empty_search
  criteria.send("#{(options[:match]||self.match).to_s}_in", :_keywords => Util.normalize_keywords(query, stem_keywords, ignore_list).map { |q| /#{q}/ })
end