Class: PGTrunk::Operations::Triggers::ChangeTrigger

Inherits:
Base show all
Defined in:
lib/pg_trunk/operations/triggers/change_trigger.rb

Instance Method Summary collapse

Methods inherited from Base

#<=>

Methods included from PGTrunk::Operation::SQLHelpers

#quote

Methods included from PGTrunk::Operation::RubyHelpers

#dump, #to_a, #to_opts, #to_ruby

Methods included from PGTrunk::Operation::Inversion

#invert!, #irreversible!

Methods included from PGTrunk::Operation::Validations

#error_messages

Methods included from PGTrunk::Operation::Attributes

#attributes, #initialize

Instance Method Details

#invert ⇒ Object

Raises:



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# File 'lib/pg_trunk/operations/triggers/change_trigger.rb', line 44

def invert
  irreversible!("if_exists: true") if if_exists
  undefined = inversion.select { |_, v| v.nil? }.keys.join(", ").presence
  raise IrreversibleMigration.new(self, nil, <<~MSG.squish) if undefined
    Undefined values to revert #{undefined}.
  MSG

  self.class.new(**inversion, table: table, name: name)
end

#to_sql(server_version) ⇒ Object 



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# File 'lib/pg_trunk/operations/triggers/change_trigger.rb', line 38

def to_sql(server_version)
  return create_trigger&.to_sql(server_version) if server_version >= "14"

  raise "The operation is supported by PostgreSQL server v14+"
end