Module: ActiveHistory::Adapter::ActiveRecord

Extended by:
ActiveSupport::Concern
Defined in:
lib/activehistory/adapters/active_record.rb

Instance Method Summary collapse

Instance Method Details

#activehistory_association_changed(relation_name, added: [], removed: [], timestamp: nil, type: :update) ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 242

def activehistory_association_changed(relation_name, added: [], removed: [], timestamp: nil, type: :update)
  timestamp ||= activehistory_timestamp
  
  self.class.activehistory_association_changed(id, relation_name, {
    added: added,
    removed: removed,
    timestamp: timestamp,
    type: type
  })
end

#activehistory_association_udpated(reflection, id, added: [], removed: [], timestamp: nil, type: :update) ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 253

def activehistory_association_udpated(reflection, id, added: [], removed: [], timestamp: nil, type: :update)
  return if !activehistory_tracking || (removed.empty? && added.empty?)
  klass = reflection.active_record
  inverse_klass = reflection.klass
  
  inverse_association = if activehistory_tracking.has_key?(:habtm_model)
    inverse_klass.reflect_on_association(activehistory_tracking.dig(:habtm_model, reflection.name.to_s.singularize.to_sym, :inverse_of))
  else
    reflection.inverse_of
  end
  
  if inverse_association.nil?
    puts "NO INVERSE for #{self.class}.#{reflection.name}!!!"
    return
  end
  
  action = activehistory_event.action_for(klass, id, {
    type: type,
    timestamp: timestamp
  })
  
  action.diff ||= {}
  if (reflection.collection? || activehistory_tracking[:habtm_model])
    diff_key = "#{reflection.name.to_s.singularize}_ids"
    action.diff[diff_key] ||= [[], []]
    action.diff[diff_key][0] |= removed
    action.diff[diff_key][1] |= added
  else
    diff_key = "#{reflection.name.to_s.singularize}_id"
    action.diff[diff_key] ||= [removed.first, added.first]
  end
  
  removed.each do |removed_id|
    action = activehistory_event.action_for(inverse_klass, removed_id, {
      type: type,
      timestamp: timestamp
    })
  
    action.diff ||= {}

    if inverse_association.collection? || activehistory_tracking[:habtm_model]
      diff_key = "#{inverse_association.name.to_s.singularize}_ids"
      action.diff[diff_key] ||= [[], []]
      action.diff[diff_key][0] |= [id]
    else
      diff_key = "#{inverse_association.name.to_s.singularize}_id"
      action.diff[diff_key] ||= [id, nil]
    end
  end
  
  added.each do |added_id|
    action = activehistory_event.action_for(inverse_klass, added_id, {
      type: type,
      timestamp: timestamp
    })
  
    action.diff ||= {}
    if inverse_association.collection? || activehistory_tracking[:habtm_model]
      diff_key = "#{inverse_association.name.to_s.singularize}_ids"
      action.diff[diff_key] ||= [[], []]
      action.diff[diff_key][1] |= [id]
    else
      diff_key = "#{inverse_association.name.to_s.singularize}_id"
      action.diff[diff_key] ||= [nil, id]
    end
  end
end

#activehistory_event ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 151

def activehistory_event
  ActiveHistory.current_event(timestamp: activehistory_timestamp)
end

#activehistory_timestamp ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 97

def activehistory_timestamp
  @activehistory_timestamp ||= Time.now.utc
end

#activehistory_track(type) ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 155

def activehistory_track(type)
  return if !activehistory_tracking
  
  if type == :create || type == :update
    diff = self.saved_changes.select { |k,v| !activehistory_tracking[:exclude].include?(k.to_sym) }

    if type == :create
      self.class.columns.each do |column|
        if !diff[column.name] && !activehistory_tracking[:exclude].include?(column.name.to_sym) && column.default != self.attributes[column.name]
          diff[column.name] = [nil, self.attributes[column.name]]
        end
      end
    end
  elsif type == :destroy
    relations_ids = self.class.reflect_on_all_associations.map { |r| "#{r.name.to_s.singularize}_ids" }

    diff = self.attributes.select do |k|
      !activehistory_tracking[:exclude].include?(k.to_sym) 
    end.map do |k, i|
      if relations_ids.include?(k)
        [ k, [ i, [] ] ]
      else
        [ k, [ i, nil ] ]
      end
    end.to_h
  end

  if type == :update
    diff_without_timestamps = if self.class.record_timestamps
      diff.keys - (self.class.send(:timestamp_attributes_for_update_in_model) + self.class.send(:timestamp_attributes_for_create_in_model))
    else
      diff.keys
    end
    
    return if diff_without_timestamps.empty?
  end

  if activehistory_tracking[:habtm_model]
    if type == :create
      self.class.reflect_on_association(:left_side).klass.activehistory_association_changed(
        self.send(activehistory_tracking[:habtm_model][:left_side][:foreign_key]),
        activehistory_tracking[:habtm_model][:left_side][:inverse_of],
        added: [self.send((self.class.column_names - [activehistory_tracking[:habtm_model][:left_side][:foreign_key]]).first)],
        timestamp: activehistory_timestamp
      )
    end
  else
    activehistory_event.action_for(self.class, id, {
      type: type,
      diff: diff,
      timestamp: activehistory_timestamp
    })
    
    
    self.class.reflect_on_all_associations.each do |reflection|
      next if activehistory_tracking[:habtm_model]
      
      if reflection.macro == :has_and_belongs_to_many && type == :destroy
        activehistory_association_changed(reflection, removed: self.send("#{reflection.name.to_s.singularize}_ids"))
      elsif reflection.macro == :belongs_to && diff.has_key?(reflection.foreign_key)
        case type
        when :create
          old_id = nil
          new_id = diff[reflection.foreign_key][1]
        when :destroy
          old_id = diff[reflection.foreign_key][0]
          new_id = nil
        else
          old_id = diff[reflection.foreign_key][0]
          new_id = diff[reflection.foreign_key][1]
        end
        
        relation_id = self.id || diff.find { |k, v| k != foreign_key }[1][1]
        
        if reflection.polymorphic?
        else
          activehistory_association_changed(reflection, removed: [old_id]) if old_id
          activehistory_association_changed(reflection, added:   [new_id]) if new_id
        end
        
      end
    end
  end

  
end

#activehistory_tracking ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 145

def activehistory_tracking
  if ActiveHistory.configured? && self.class.instance_variable_defined?(:@activehistory)
    self.class.instance_variable_get(:@activehistory)
  end
end

#with_transaction_returning_status ⇒ Object 



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# File 'lib/activehistory/adapters/active_record.rb', line 101

def with_transaction_returning_status
  @activehistory_timestamp = Time.now.utc
  if !Thread.current[:activehistory_save_lock]
    run_save = true
    Thread.current[:activehistory_save_lock] = true
    if !Thread.current[:activehistory_event]
      destroy_current_event = true
      Thread.current[:activehistory_event] = ActiveHistory::Event.new(timestamp: @activehistory_timestamp)
    end
  end

  status = nil
  self.class.transaction do
    add_to_transaction
    begin
      status = yield
    rescue ::ActiveRecord::Rollback
      clear_transaction_record_state
      status = nil
    end

    if status
      if run_save && ActiveHistory.configured? && !activehistory_event.actions.empty?
        activehistory_event&.save!
      end
    else
      raise ::ActiveRecord::Rollback
    end
  end
  status
ensure
  @activehistory_timestamp = nil
  if run_save
    Thread.current[:activehistory_save_lock] = false
  end
  if destroy_current_event
    Thread.current[:activehistory_event] = nil
  end

  if @transaction_state && @transaction_state.committed?
    clear_transaction_record_state
  end
end