Module: ThinkingSphinx::ActiveRecord

Defined in:
lib/thinking_sphinx/active_record.rb,
lib/thinking_sphinx/active_record/delta.rb,
lib/thinking_sphinx/active_record/scopes.rb,
lib/thinking_sphinx/active_record/attribute_updates.rb,
lib/thinking_sphinx/active_record/has_many_association.rb

Overview

Core additions to ActiveRecord models - define_index for creating indexes for models. If you want to interrogate the index objects created for the model, you can use the class-level accessor :sphinx_indexes.

Defined Under Namespace

Modules: AttributeUpdates, ClassMethods, Delta, HasManyAssociation, Scopes

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 


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# File 'lib/thinking_sphinx/active_record.rb', line 12

def self.included(base)
  base.class_eval do
    class_inheritable_array :sphinx_indexes, :sphinx_facets
    
    extend ThinkingSphinx::ActiveRecord::ClassMethods
    
    class << self
      attr_accessor :sphinx_index_blocks
      
      def set_sphinx_primary_key(attribute)
        @sphinx_primary_key_attribute = attribute
      end
      
      def primary_key_for_sphinx
        @sphinx_primary_key_attribute || primary_key
      end
      
      def sphinx_index_options
        sphinx_indexes.last.options
      end
      
      # Generate a unique CRC value for the model's name, to use to
      # determine which Sphinx documents belong to which AR records.
      # 
      # Really only written for internal use - but hey, if it's useful to
      # you in some other way, awesome.
      # 
      def to_crc32
        self.name.to_crc32
      end
      
      def to_crc32s
        (subclasses << self).collect { |klass| klass.to_crc32 }
      end
      
      def sphinx_database_adapter
        @sphinx_database_adapter ||=
          ThinkingSphinx::AbstractAdapter.detect(self)
      end
      
      def sphinx_name
        self.name.underscore.tr(':/\\', '_')
      end
      
      #
      # The above method to_crc32s is dependant on the subclasses being loaded consistently
      # After a reset_subclasses is called (during a Dispatcher.cleanup_application in development)
      # Our subclasses will be lost but our context will not reload them for us.
      #
      # We reset the context which causes the subclasses to be reloaded next time the context is called.
      #
      def reset_subclasses_with_thinking_sphinx
        reset_subclasses_without_thinking_sphinx
        ThinkingSphinx.reset_context!
      end
      
      alias_method_chain :reset_subclasses, :thinking_sphinx
      
      private
      
      def defined_indexes?
        @defined_indexes
      end
      
      def defined_indexes=(value)
        @defined_indexes = value
      end
      
      def sphinx_delta?
        self.sphinx_indexes.any? { |index| index.delta? }
      end
    end
  end
  
  ::ActiveRecord::Associations::HasManyAssociation.send(
    :include, ThinkingSphinx::ActiveRecord::HasManyAssociation
  )
  ::ActiveRecord::Associations::HasManyThroughAssociation.send(
    :include, ThinkingSphinx::ActiveRecord::HasManyAssociation
  )
end

Instance Method Details

#in_both_indexes? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/thinking_sphinx/active_record.rb', line 337

def in_both_indexes?
  in_core_index? && in_delta_index?
end

#in_core_index? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/thinking_sphinx/active_record.rb', line 329

def in_core_index?
  in_index? "core"
end

#in_delta_index? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/thinking_sphinx/active_record.rb', line 333

def in_delta_index?
  in_index? "delta"
end

#in_index?(suffix) ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/thinking_sphinx/active_record.rb', line 325

def in_index?(suffix)
  self.class.search_for_id self.sphinx_document_id, sphinx_index_name(suffix)
end

#primary_key_for_sphinx ⇒ Integer

Returns the unique integer id for the object. This method uses the attribute hash to get around ActiveRecord always mapping the #id method to whatever the real primary key is (which may be a unique string hash).

Returns:

  • (Integer) —

    Unique record id for the purposes of Sphinx.


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# File 'lib/thinking_sphinx/active_record.rb', line 361

def primary_key_for_sphinx
  @primary_key_for_sphinx ||= read_attribute(self.class.primary_key_for_sphinx)
end

#sphinx_document_id ⇒ Object 


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# File 'lib/thinking_sphinx/active_record.rb', line 365

def sphinx_document_id
  primary_key_for_sphinx * ThinkingSphinx.context.indexed_models.size +
    self.class.sphinx_offset
end

#toggle_deleted ⇒ Object 


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# File 'lib/thinking_sphinx/active_record.rb', line 341

def toggle_deleted
  return unless ThinkingSphinx.updates_enabled?
  
  self.class.core_index_names.each do |index_name|
    self.class.delete_in_index index_name, self.sphinx_document_id
  end
  self.class.delta_index_names.each do |index_name|
    self.class.delete_in_index index_name, self.sphinx_document_id
  end if self.class.delta_indexed_by_sphinx? && toggled_delta?
  
rescue ::ThinkingSphinx::ConnectionError
  # nothing
end