Module: Litesearch::Model::ClassMethods

Defined in:
lib/litestack/litesearch/model.rb

Instance Method Summary collapse

Instance Method Details

#create_instance(row) ⇒ Object

create a new instance of self with the row as an argument



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# File 'lib/litestack/litesearch/model.rb', line 107

def create_instance(row)
  new(row)
end

#drop_index! ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 63

def drop_index!
  get_connection.search_index(index_name).drop!
end

#index_name ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 98

def index_name
  "#{table_name}_search_idx"
end

#index_name_for_table(table) ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 102

def index_name_for_table(table)
  "#{table}_search_idx"
end

#litesearch ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 43

def litesearch
  idx = get_connection.search_index(index_name) do |schema|
    schema.type :backed
    schema.table table_name.to_sym
    yield schema
    schema.post_init
    @schema = schema # save the schema
  end
  if !defined?(Sequel::Model).nil? && ancestors.include?(Sequel::Model)
    Sequel::Model.search_models[name] = self
  elsif !defined?(ActiveRecord::Base).nil? && ancestors.include?(ActiveRecord::Base)
    ActiveRecord::Base.search_models[name] = self
  end
  idx
end

#rebuild_index! ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 59

def rebuild_index!
  get_connection.search_index(index_name).rebuild!
end

#search_all(term, options = {}) ⇒ Object 



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# File 'lib/litestack/litesearch/model.rb', line 67

def search_all(term, options = {})
  options[:offset] ||= 0
  options[:limit] ||= 25
  options[:term] = term
  selects = []
  if (models = options[:models])
    models_hash = {}
    models.each do |model|
      models_hash[model.name] = model
    end
  else
    models_hash = search_models
  end
  # remove the models from the options hash before passing it ot the query
  options.delete(:models)
  models_hash.each do |name, klass|
    selects << "SELECT '#{name}' AS model, rowid, -rank AS search_rank FROM #{index_name_for_table(klass.table_name)}(:term)"
  end
  conn = get_connection
  sql = selects.join(" UNION ") << " ORDER BY search_rank DESC LIMIT :limit OFFSET :offset"
  result = []
  rs = conn.query(sql, options) # , options[:limit], options[:offset])
  rs.each_hash do |row|
    obj = models_hash[row["model"]].fetch_row(row["rowid"])
    obj.search_rank = row["search_rank"]
    result << obj
  end
  rs.close
  result
end