Module: Tire::Model::Percolate::ClassMethods

Included in:
Search::ClassMethodsProxy
Defined in:
lib/tire/model/percolate.rb

Instance Method Summary collapse

Instance Method Details

#on_percolate(pattern = true, &block) ⇒ Object

A callback method for intercepting percolator matches.

Usage:

class Article
  # ...
  on_percolate do
    puts "Article title “#{title}” matches queries: #{matches.inspect}" unless matches.empty?
  end
end

Based on the response received in ‘matches`, you may choose to fire notifications, increment counters, send out e-mail alerts, etc.



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# File 'lib/tire/model/percolate.rb', line 52

def on_percolate(pattern=true,&block)
  percolate!(pattern)
  klass.after_update_elasticsearch_index(block)
end

#percolate!(pattern = true) ⇒ Object

Set up the percolation when documents are being added to the index.

Usage:

class Article
  # ...
  percolate!
end

First, you have to register a percolator query:

Article.index.register_percolator_query('fail')    { |query| query.string 'fail' }

Then, when you update the index, matching queries are returned in the ‘matches` property:

p Article.create(:title => 'This is a FAIL!').matches

You may pass a pattern to filter which percolator queries will be executed.

See <www.elasticsearch.org/guide/reference/api/index_.html> for more information.



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# File 'lib/tire/model/percolate.rb', line 33

def percolate!(pattern=true)
  @@_percolator = pattern
  self
end

#percolator ⇒ Object

Returns the status or pattern of percolator for this class.



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# File 'lib/tire/model/percolate.rb', line 59

def percolator
  defined?(@@_percolator) ? @@_percolator : nil
end