Class: ThinkingSphinx::Deltas::DefaultDelta

Inherits:

Object

• Object
• ThinkingSphinx::Deltas::DefaultDelta

show all

Defined in:

lib/thinking_sphinx/deltas/default_delta.rb

Instance Attribute Summary (collapse)

• - (Object) column

  Returns the value of attribute column.

Instance Method Summary (collapse)

• - (Object) clause(model, toggled)
• - (Object) index(model, instance = nil)
• - (DefaultDelta) initialize(index, options) constructor

  A new instance of DefaultDelta.

• - (Object) reset_query(model)
• - (Object) toggle(instance)
• - (Object) toggled(instance)

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 6

def initialize(index, options)
  @index  = index
  @column = options.delete(:delta_column) || :delta
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 4

def column
  @column
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 36

def clause(model, toggled)
  "#{model.quoted_table_name}.#{model.connection.quote_column_name(@column.to_s)}" +
  " = #{adapter.boolean(toggled)}"
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 11

def index(model, instance = nil)
  return true unless ThinkingSphinx.updates_enabled? &&
    ThinkingSphinx.deltas_enabled?
  return true if instance && !toggled(instance)
  
  update_delta_indexes model
  delete_from_core     model, instance if instance
  
  true
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 30

def reset_query(model)
  "UPDATE #{model.quoted_table_name} SET " +
  "#{model.connection.quote_column_name(@column.to_s)} = #{adapter.boolean(false)} " +
  "WHERE #{model.connection.quote_column_name(@column.to_s)} = #{adapter.boolean(true)}"
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 22

def toggle(instance)
  instance.send "#{@column}=", true
end

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# File 'lib/thinking_sphinx/deltas/default_delta.rb', line 26

def toggled(instance)
  instance.send "#{@column}"
end