Class: ActiveRecord::Associations::HasAndBelongsToManyAssociation

Inherits:
Object
  • Object
show all
Defined in:
lib/composite_primary_keys/associations/has_and_belongs_to_many_association.rb

Instance Method Summary collapse

Instance Method Details

#construct_sql ⇒ Object 



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# File 'lib/composite_primary_keys/associations/has_and_belongs_to_many_association.rb', line 4

def construct_sql
  if @reflection.options[:finder_sql]
    @finder_sql = interpolate_and_sanitize_sql(@reflection.options[:finder_sql])
  else
    # CPK
    # @finder_sql = "#{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.primary_key_name} = #{owner_quoted_id} "
    @finder_sql = full_columns_equals(@reflection.options[:join_table], @reflection.cpk_primary_key, owner_quoted_id)
    @finder_sql << " AND (#{conditions})" if conditions
  end

  join_condition = if composite?
    conditions = Array.new
    primary_keys.length.times do |i|
      conditions << "#{@reflection.quoted_table_name}.#{@reflection.klass.primary_key[i]} = #{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.association_foreign_key[i]}"
    end
    conditions.join(' AND ')
  else
    "#{@reflection.quoted_table_name}.#{@reflection.klass.primary_key} = #{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.association_foreign_key}"
  end
  #@join_sql = "INNER JOIN #{@owner.connection.quote_table_name @reflection.options[:join_table]} ON #{@reflection.quoted_table_name}.#{@reflection.klass.primary_key} = #{@owner.connection.quote_table_name @reflection.options[:join_table]}.#{@reflection.association_foreign_key}"
  @join_sql = "INNER JOIN #{@owner.connection.quote_table_name @reflection.options[:join_table]} ON (#{join_condition})"

  construct_counter_sql
end

#insert_record(record, force = true, validate = true) ⇒ Object 



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# File 'lib/composite_primary_keys/associations/has_and_belongs_to_many_association.rb', line 29

def insert_record(record, force = true, validate = true)
  unless record.persisted?
    if force
      record.save!
    else
      return false unless record.save(:validate => validate)
    end
  end

  if @reflection.options[:insert_sql]
    @owner.connection.insert(interpolate_and_sanitize_sql(@reflection.options[:insert_sql], record))
  else
    relation   = Arel::Table.new(@reflection.options[:join_table])
    timestamps = record_timestamp_columns(record)
    timezone   = record.send(:current_time_from_proper_timezone) if timestamps.any?

    # CPK
    #attributes = Hash[columns.map do |column|
    #  name = column.name
    #  value = case name.to_s
    #    when @reflection.primary_key_name.to_s
    #      @owner.id
    #    when @reflection.association_foreign_key.to_s
    #      record.id
    #    when *timestamps
    #      timezone
    #    else
    #      @owner.send(:quote_value, record[name], column) if record.has_attribute?(name)
    #  end
    #  [relation[name], value] unless value.nil?
    #end]

    # CPK
    owner_foreign_keys = @reflection.cpk_primary_key.map{|key| key.to_s}
    association_foreign_keys = Array(@reflection.association_foreign_key).map{|key| key.to_s}

    attributes = Hash[columns.map do |column|
      name = column.name.to_s
      value = case
        when owner_foreign_keys.include?(name)
          index = owner_foreign_keys.index(name)
          primary_keys = Array(@owner.class.primary_key)
          primary_key = primary_keys[index]
          @owner[primary_key]
        when association_foreign_keys.include?(name)
          index = association_foreign_keys.index(name)
          primary_keys = Array(@reflection.klass.primary_key)
          primary_key = primary_keys[index]
          record[primary_key]
        when timestamps.include?(name)
          timezone
        else
          @owner.send(:quote_value, record[name], column) if record.has_attribute?(name)
      end
      [relation[name], value] unless value.nil?
    end]

    relation.insert(attributes)
  end

  return true
end