Module: Torque::PostgreSQL::Adapter::SchemaCreation

Defined in:
lib/torque/postgresql/adapter/schema_creation.rb

Instance Method Summary collapse

Instance Method Details

#visit_TableDefinition(o) ⇒ Object

Redefine original table creation command to ensure PostgreSQL standard



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# File 'lib/torque/postgresql/adapter/schema_creation.rb', line 7

def visit_TableDefinition(o)
  create_sql = +"CREATE#{table_modifier_in_create(o)} TABLE "
  create_sql << "IF NOT EXISTS " if o.if_not_exists
  create_sql << "#{quote_table_name(o.name)} "

  statements = o.columns.map { |c| accept c }
  statements << accept(o.primary_keys) if o.primary_keys

  if supports_indexes_in_create?
    statements.concat(o.indexes.map do |column_name, options|
      index_in_create(o.name, column_name, options)
    end)
  end

  if supports_foreign_keys?
    statements.concat(o.foreign_keys.map do |to_table, options|
      foreign_key_in_create(o.name, to_table, options)
    end)
  end

  if respond_to?(:supports_check_constraints?) && supports_check_constraints?
    statements.concat(o.check_constraints.map do |expression, options|
      check_constraint_in_create(o.name, expression, options)
    end)
  end

  create_sql << "(#{statements.join(', ')})" \
    if statements.present? || o.inherits.present?

  options = PostgreSQL::AR610 ? o : table_options(o)
  add_table_options!(create_sql, options)

  if o.inherits.present?
    tables = o.inherits.map(&method(:quote_table_name))
    create_sql << " INHERITS ( #{tables.join(' , ')} )"
  end

  create_sql << " AS #{to_sql(o.as)}" if o.as
  create_sql
end