diff options
Diffstat (limited to 'activerecord/lib/active_record/model_schema.rb')
| -rw-r--r-- | activerecord/lib/active_record/model_schema.rb | 74 |
1 files changed, 35 insertions, 39 deletions
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index dc5ff02882..9e1afd32e6 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -29,6 +29,10 @@ module ActiveRecord # :singleton-method: # Works like +table_name_prefix+, but appends instead of prepends (set to "_basecamp" gives "projects_basecamp", # "people_basecamp"). By default, the suffix is the empty string. + # + # If you are organising your models within modules, you can add a suffix to the models within + # a namespace by defining a singleton method in the parent module called table_name_suffix which + # returns your chosen suffix. class_attribute :table_name_suffix, instance_writer: false self.table_name_suffix = "" @@ -47,6 +51,8 @@ module ActiveRecord self.pluralize_table_names = true self.inheritance_column = 'type' + + delegate :type_for_attribute, to: :class end module ClassMethods @@ -153,6 +159,10 @@ module ActiveRecord (parents.detect{ |p| p.respond_to?(:table_name_prefix) } || self).table_name_prefix end + def full_table_name_suffix #:nodoc: + (parents.detect {|p| p.respond_to?(:table_name_suffix) } || self).table_name_suffix + end + # Defines the name of the table column which will store the class name on single-table # inheritance situations. # @@ -190,7 +200,7 @@ module ActiveRecord # given block. This is required for Oracle and is useful for any # database which relies on sequences for primary key generation. # - # If a sequence name is not explicitly set when using Oracle or Firebird, + # If a sequence name is not explicitly set when using Oracle, # it will default to the commonly used pattern of: #{table_name}_seq # # If a sequence name is not explicitly set when using PostgreSQL, it @@ -209,44 +219,26 @@ module ActiveRecord connection.schema_cache.table_exists?(table_name) end - # Returns an array of column objects for the table associated with this class. - def columns - @columns ||= connection.schema_cache.columns(table_name).map do |col| - col = col.dup - col.primary = (col.name == primary_key) - col - end - end - - # Returns a hash of column objects for the table associated with this class. - def columns_hash - @columns_hash ||= Hash[columns.map { |c| [c.name, c] }] - end - def column_types # :nodoc: - @column_types ||= decorate_columns(columns_hash.dup) + @column_types ||= decorate_types(build_types_hash) end - def decorate_columns(columns_hash) # :nodoc: - return if columns_hash.empty? - - @serialized_column_names ||= self.columns_hash.keys.find_all do |name| - serialized_attributes.key?(name) - end + def type_for_attribute(attr_name) # :nodoc: + column_types.fetch(attr_name) { Type::Value.new } + end - @serialized_column_names.each do |name| - columns_hash[name] = AttributeMethods::Serialization::Type.new(columns_hash[name]) - end + def decorate_types(types) # :nodoc: + return if types.empty? @time_zone_column_names ||= self.columns_hash.find_all do |name, col| create_time_zone_conversion_attribute?(name, col) end.map!(&:first) @time_zone_column_names.each do |name| - columns_hash[name] = AttributeMethods::TimeZoneConversion::Type.new(columns_hash[name]) + types[name] = AttributeMethods::TimeZoneConversion::Type.new(types[name]) end - columns_hash + types end # Returns a hash where the keys are column names and the values are @@ -255,6 +247,14 @@ module ActiveRecord @column_defaults ||= Hash[columns.map { |c| [c.name, c.default] }] end + # Returns a hash where the keys are the column names and the values + # are the default values suitable for use in `@raw_attriubtes` + def raw_column_defaults # :nodoc: + @raw_column_defauts ||= Hash[column_defaults.map { |name, default| + [name, columns_hash[name].type_cast_for_database(default)] + }] + end + # Returns an array of column names as strings. def column_names @column_names ||= columns.map { |column| column.name } @@ -263,7 +263,7 @@ module ActiveRecord # Returns an array of column objects where the primary id, all columns ending in "_id" or "_count", # and columns used for single table inheritance have been removed. def content_columns - @content_columns ||= columns.reject { |c| c.primary || c.name =~ /(_id|_count)$/ || c.name == inheritance_column } + @content_columns ||= columns.reject { |c| c.name == primary_key || c.name =~ /(_id|_count)$/ || c.name == inheritance_column } end # Resets all the cached information about columns, which will cause them @@ -299,26 +299,17 @@ module ActiveRecord @arel_engine = nil @column_defaults = nil + @raw_column_defauts = nil @column_names = nil - @columns = nil - @columns_hash = nil @column_types = nil @content_columns = nil @dynamic_methods_hash = nil @inheritance_column = nil unless defined?(@explicit_inheritance_column) && @explicit_inheritance_column @relation = nil - @serialized_column_names = nil @time_zone_column_names = nil @cached_time_zone = nil end - # This is a hook for use by modules that need to do extra stuff to - # attributes when they are initialized. (e.g. attribute - # serialization) - def initialize_attributes(attributes, options = {}) #:nodoc: - attributes - end - private # Guesses the table name, but does not decorate it with prefix and suffix information. @@ -337,12 +328,17 @@ module ActiveRecord contained = contained.singularize if parent.pluralize_table_names contained += '_' end - "#{full_table_name_prefix}#{contained}#{undecorated_table_name(name)}#{table_name_suffix}" + + "#{full_table_name_prefix}#{contained}#{undecorated_table_name(name)}#{full_table_name_suffix}" else # STI subclasses always use their superclass' table. base.table_name end end + + def build_types_hash + Hash[columns.map { |column| [column.name, column.cast_type] }] + end end end end |