class SetAsPrimary::Generators::SetAsPrimaryGenerator
Public Class Methods
next_migration_number(dirname)
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# File lib/generators/set_as_primary/set_as_primary_generator.rb, line 57 def self.next_migration_number(dirname) ActiveRecord::Generators::Base.next_migration_number(dirname) end
Public Instance Methods
copy_migration()
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# File lib/generators/set_as_primary/set_as_primary_generator.rb, line 17 def copy_migration migration_template "migration.rb", "db/migrate/add_primary_column_to_#{table_name}.rb", migration_version: migration_version, index_on: index_on, support_partial_index: support_partial_index end
index_on()
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# File lib/generators/set_as_primary/set_as_primary_generator.rb, line 28 def index_on if owner_key.present? klass = table_name.classify.constantize owner_association = klass.reflect_on_association(owner_key.to_sym) if owner_association.nil? raise ActiveRecord::AssociationNotFoundError.new(klass, owner_key) end owner_id_key = "#{owner_key}_id" if owner_association.options[:polymorphic] owner_type_key = "#{owner_key}_type" "%i[#{owner_id_key} #{owner_type_key} #{flag_name}]" else "%i[#{owner_id_key} #{flag_name}]" end else ":#{flag_name}" end end
migration_version()
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# File lib/generators/set_as_primary/set_as_primary_generator.rb, line 24 def migration_version "[#{ActiveRecord::VERSION::MAJOR}.#{ActiveRecord::VERSION::MINOR}]" end
support_partial_index()
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# File lib/generators/set_as_primary/set_as_primary_generator.rb, line 50 def support_partial_index # NOTE: Partial indexes are only supported for PostgreSQL and SQLite 3.8.0+. # Also found that, even if we use SQLite 3.8.0+, we still get a syntax error. # So currently we have ignored SQLite. ActiveRecord::Base.connection.adapter_name.downcase.to_sym == :postgresql end