Module: CounterCulture

Defined in:
lib/counter_culture.rb,
lib/counter_culture/counter.rb,
lib/counter_culture/version.rb,
lib/counter_culture/extensions.rb,
lib/counter_culture/reconciler.rb,
lib/counter_culture/skip_updates.rb,
lib/counter_culture/configuration.rb,
lib/counter_culture/with_connection.rb

Defined Under Namespace

Modules: Extensions, SkipUpdates Classes: Configuration, Counter, Reconciler, WithConnection

Constant Summary collapse

VERSION = 
'3.12.1'.freeze

Class Method Summary collapse

Class Method Details

.aggregate_counter_updates ⇒ Object 



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# File 'lib/counter_culture.rb', line 20

def self.aggregate_counter_updates
  return unless block_given?

  Thread.current[:aggregate_counter_updates] = true
  Thread.current[:aggregated_updates] = {}
  Thread.current[:primary_key_map] = {}

  result = yield

  # aggregate the updates for each target record and execute SQL queries using Arel
  Thread.current[:aggregated_updates].each do |klass, attrs|
    attrs.each do |rec_id, updates|
      arel_updates = {}

      # Build counter updates
      updates[:counters].each do |column, info|
        next if info[:delta] == 0
        arel_updates[column] = Counter.build_arel_counter_expr(klass, column, info[:delta], info[:type])
      end

      # Build timestamp updates (compute timestamp at execution time)
      if updates[:timestamps].any?
        current_time = klass.send(:current_time_from_proper_timezone)
        updates[:timestamps].each do |column|
          arel_updates[column] = current_time
        end
      end

      if arel_updates.any?
        primary_key = Thread.current[:primary_key_map][klass]

        conditions =
          Array.wrap(primary_key)
              .zip(Array.wrap(rec_id))
              .to_h

        klass.where(conditions).distinct(false).update_all(arel_updates)
      end
    end
  end

  result
ensure
  Thread.current[:aggregate_counter_updates] = false
  Thread.current[:aggregated_updates] = nil
  Thread.current[:primary_key_map] = nil
end

.config {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/counter_culture.rb', line 15

def self.config
  yield(self) if block_given?
  self
end

.configuration ⇒ Object 



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# File 'lib/counter_culture/configuration.rb', line 2

def self.configuration
  @configuration ||= Configuration.new
end

.configure {|configuration| ... } ⇒ Object

Yields:



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# File 'lib/counter_culture/configuration.rb', line 6

def self.configure
  yield(configuration)
end

.reset_configuration ⇒ Object 



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# File 'lib/counter_culture/configuration.rb', line 10

def self.reset_configuration
  @configuration = Configuration.new
end

.supports_composite_keys? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/counter_culture/configuration.rb', line 14

def self.supports_composite_keys?
  Gem::Requirement.new('>= 7.2.0').satisfied_by?(ActiveRecord.version)
end