Sha256: bec899936909c3139bcf446bcdda6a52c39a3c818f1dcb38aed3ea1c7844a526

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Size: 1.54 KB

Versions: 21

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Stored size: 1.54 KB

Contents

# frozen-string-literal: true

module Sequel
  module Plugins
    # Base for other optimistic locking plugins
    module OptimisticLockingBase
      # Load the instance_filters plugin into the model.
      def self.apply(model)
        model.plugin :instance_filters
      end

      module ClassMethods
        # The column holding the version of the lock
        attr_accessor :lock_column
        
        Plugins.inherited_instance_variables(self, :@lock_column=>nil)
      end
    
      module InstanceMethods
        # Add the lock column instance filter to the object before destroying it.
        def before_destroy
          lock_column_instance_filter
          super
        end
        
        # Add the lock column instance filter to the object before updating it.
        def before_update
          lock_column_instance_filter
          super
        end
        
        private
        
        # Add the lock column instance filter to the object.
        def lock_column_instance_filter
          instance_filter(model.lock_column=>lock_column_instance_filter_value)
        end

        # Use the current value of the lock column
        def lock_column_instance_filter_value
          public_send(model.lock_column)
        end

        # Clear the instance filters when refreshing, so that attempting to
        # refresh after a failed save removes the previous lock column filter
        # (the new one will be added before updating).
        def _refresh(ds)
          clear_instance_filters
          super
        end
      end
    end
  end
end

Version data entries

21 entries across 21 versions & 1 rubygems

Version Path
sequel-5.90.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.89.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.88.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.87.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.86.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.85.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.84.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.83.1 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.83.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.82.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.81.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.80.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.79.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.78.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.77.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.76.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.75.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.74.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.73.0 lib/sequel/plugins/optimistic_locking_base.rb
sequel-5.72.0 lib/sequel/plugins/optimistic_locking_base.rb