Class: CloudSearch::Searcher

Inherits:
Object
  • Object
show all
Includes:
ConfigurationChecking
Defined in:
lib/cloud_search/searcher.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Searcher

Returns a new instance of Searcher.



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# File 'lib/cloud_search/searcher.rb', line 9

def initialize
  @response = SearchResponse.new
  @filters  = []
end

Instance Attribute Details

#weights ⇒ Object (readonly)

Returns the value of attribute weights.



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# File 'lib/cloud_search/searcher.rb', line 7

def weights
  @weights
end

Instance Method Details

#as_boolean_query ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 32

def as_boolean_query
  @boolean = true
  self
end

#at_page(page) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 65

def at_page(page)
  @page_number = (page && page < 1) ? 1 : page
  self
end

#boolean_query? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloud_search/searcher.rb', line 47

def boolean_query?
  !!@boolean
end

#items_per_page ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 61

def items_per_page
  @response.items_per_page
end

#page_number ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 70

def page_number
  @page_number or 1
end

#query ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 42

def query
  return '' unless @query
  URI.escape(@query).gsub('&', '%26')
end

#ranked_by(rank_expression) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 37

def ranked_by(rank_expression)
  @rank = rank_expression
  self
end

#search ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 14

def search
  cloud_search_response = RestClient.get url
  @response.http_code   = cloud_search_response.code
  @response.body        = cloud_search_response.body

  @response
end

#start ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 74

def start
  return 0 if page_number <= 1
  (items_per_page * (page_number - 1))
end

#url ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 79

def url
  check_configuration_parameters

  "#{CloudSearch.config.search_url}/search".tap do |u|
    u.concat("?#{query_parameter}=#{query}&size=#{items_per_page}&start=#{start}")
    u.concat("&return-fields=#{URI.escape(@fields.join(","))}") if @fields && @fields.any?
    u.concat("&#{filter_expression}") if @filters.any?
    u.concat("&#{weighted_fields_expression}") if @weights and !@weights.empty?
    u.concat("&rank=#{@rank}") if @rank
  end
end

#with_fields(*fields) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 51

def with_fields(*fields)
  @fields = fields
  self
end

#with_filter(filter) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 27

def with_filter(filter)
  @filters << filter
  self
end

#with_items_per_page(items_per_page) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 56

def with_items_per_page(items_per_page)
  @response.items_per_page = items_per_page
  self
end

#with_query(query) ⇒ Object 



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# File 'lib/cloud_search/searcher.rb', line 22

def with_query(query)
  @query = query
  self
end