76 lines
1.9 KiB
Ruby
76 lines
1.9 KiB
Ruby
module MigrationsHelpers
|
|
def table(name)
|
|
Class.new(ActiveRecord::Base) { self.table_name = name }
|
|
end
|
|
|
|
def migrations_paths
|
|
ActiveRecord::Migrator.migrations_paths
|
|
end
|
|
|
|
def table_exists?(name)
|
|
ActiveRecord::Base.connection.table_exists?(name)
|
|
end
|
|
|
|
def migrations
|
|
ActiveRecord::Migrator.migrations(migrations_paths)
|
|
end
|
|
|
|
def clear_schema_cache!
|
|
ActiveRecord::Base.connection_pool.connections.each do |conn|
|
|
conn.schema_cache.clear!
|
|
end
|
|
end
|
|
|
|
def reset_column_in_all_models
|
|
clear_schema_cache!
|
|
|
|
# Reset column information for the most offending classes **after** we
|
|
# migrated the schema up, otherwise, column information could be outdated
|
|
ActiveRecord::Base.descendants.each { |klass| klass.reset_column_information }
|
|
|
|
# Without that, we get errors because of missing attributes, e.g.
|
|
# super: no superclass method `elasticsearch_indexing' for #<ApplicationSetting:0x00007f85628508d8>
|
|
ApplicationSetting.define_attribute_methods
|
|
end
|
|
|
|
def previous_migration
|
|
migrations.each_cons(2) do |previous, migration|
|
|
break previous if migration.name == described_class.name
|
|
end
|
|
end
|
|
|
|
def migration_schema_version
|
|
self.class.metadata[:schema] || previous_migration.version
|
|
end
|
|
|
|
def schema_migrate_down!
|
|
disable_migrations_output do
|
|
ActiveRecord::Migrator.migrate(migrations_paths,
|
|
migration_schema_version)
|
|
end
|
|
|
|
reset_column_in_all_models
|
|
end
|
|
|
|
def schema_migrate_up!
|
|
disable_migrations_output do
|
|
ActiveRecord::Migrator.migrate(migrations_paths)
|
|
end
|
|
|
|
reset_column_in_all_models
|
|
end
|
|
|
|
def disable_migrations_output
|
|
ActiveRecord::Migration.verbose = false
|
|
|
|
yield
|
|
ensure
|
|
ActiveRecord::Migration.verbose = true
|
|
end
|
|
|
|
def migrate!
|
|
ActiveRecord::Migrator.up(migrations_paths) do |migration|
|
|
migration.name == described_class.name
|
|
end
|
|
end
|
|
end
|