diff options
Diffstat (limited to 'activerecord/lib/active_record/model_schema.rb')
| -rw-r--r-- | activerecord/lib/active_record/model_schema.rb | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 5a6f42ba09..a9bd094a66 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -50,6 +50,13 @@ module ActiveRecord class_attribute :pluralize_table_names, instance_writer: false self.pluralize_table_names = true + ## + # :singleton-method: + # Accessor for the list of columns names the model should ignore. Ignored columns won't have attribute + # accessors defined, and won't be referenced in SQL queries. + class_attribute :ignored_columns, instance_accessor: false + self.ignored_columns = [].freeze + self.inheritance_column = 'type' delegate :type_for_attribute, to: :class @@ -213,7 +220,7 @@ module ActiveRecord # Indicates whether the table associated with this class exists def table_exists? - connection.schema_cache.table_exists?(table_name) + connection.schema_cache.data_source_exists?(table_name) end def attributes_builder # :nodoc: @@ -240,7 +247,7 @@ module ActiveRecord end # Returns a hash where the keys are column names and the values are - # default values when instantiating the AR object for this table. + # default values when instantiating the Active Record object for this table. def column_defaults load_schema _default_attributes.to_hash @@ -290,7 +297,7 @@ module ActiveRecord def reset_column_information connection.clear_cache! undefine_attribute_methods - connection.schema_cache.clear_table_cache!(table_name) + connection.schema_cache.clear_data_source_cache!(table_name) reload_schema_from_cache end @@ -308,7 +315,7 @@ module ActiveRecord end def load_schema! - @columns_hash = connection.schema_cache.columns_hash(table_name) + @columns_hash = connection.schema_cache.columns_hash(table_name).except(*ignored_columns) @columns_hash.each do |name, column| warn_if_deprecated_type(column) define_attribute( |