diff options
Diffstat (limited to 'activerecord/lib/active_record/model_schema.rb')
| -rw-r--r-- | activerecord/lib/active_record/model_schema.rb | 104 |
1 files changed, 72 insertions, 32 deletions
diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 61f82af0c3..99de16cd33 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -1,7 +1,18 @@ -require 'active_support/concern' -require 'active_support/core_ext/class/attribute_accessors' module ActiveRecord + ActiveSupport.on_load(:active_record_config) do + mattr_accessor :primary_key_prefix_type, instance_accessor: false + + mattr_accessor :table_name_prefix, instance_accessor: false + self.table_name_prefix = "" + + mattr_accessor :table_name_suffix, instance_accessor: false + self.table_name_suffix = "" + + mattr_accessor :pluralize_table_names, instance_accessor: false + self.pluralize_table_names = true + end + module ModelSchema extend ActiveSupport::Concern @@ -13,7 +24,7 @@ module ActiveRecord # the Product class will look for "productid" instead of "id" as the primary column. If the # latter is specified, the Product class will look for "product_id" instead of "id". Remember # that this is a global setting for all Active Records. - config_attribute :primary_key_prefix_type, :global => true + config_attribute :primary_key_prefix_type, global: true ## # :singleton-method: @@ -26,14 +37,12 @@ module ActiveRecord # a namespace by defining a singleton method in the parent module called table_name_prefix which # returns your chosen prefix. config_attribute :table_name_prefix - self.table_name_prefix = "" ## # :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. config_attribute :table_name_suffix - self.table_name_suffix = "" ## # :singleton-method: @@ -41,7 +50,6 @@ module ActiveRecord # If true, the default table name for a Product class will be +products+. If false, it would just be +product+. # See table_name for the full rules on table/class naming. This is true, by default. config_attribute :pluralize_table_names - self.pluralize_table_names = true end module ClassMethods @@ -114,11 +122,18 @@ module ActiveRecord # You can also just define your own <tt>self.table_name</tt> method; see # the documentation for ActiveRecord::Base#table_name. def table_name=(value) - @original_table_name = @table_name if defined?(@table_name) - @table_name = value && value.to_s - @quoted_table_name = nil - @arel_table = nil - @relation = Relation.new(self, arel_table) + value = value && value.to_s + + if defined?(@table_name) + return if value == @table_name + reset_column_information if connected? + end + + @table_name = value + @quoted_table_name = nil + @arel_table = nil + @sequence_name = nil unless defined?(@explicit_sequence_name) && @explicit_sequence_name + @relation = Relation.new(self, arel_table) end # Returns a quoted version of the table name, used to construct SQL statements. @@ -128,16 +143,12 @@ module ActiveRecord # Computes the table name, (re)sets it internally, and returns it. def reset_table_name #:nodoc: - if abstract_class? - self.table_name = if active_record_super == Base || active_record_super.abstract_class? - nil - else - active_record_super.table_name - end + self.table_name = if abstract_class? + active_record_super == Base ? nil : active_record_super.table_name elsif active_record_super.abstract_class? - self.table_name = active_record_super.table_name || compute_table_name + active_record_super.table_name || compute_table_name else - self.table_name = compute_table_name + compute_table_name end end @@ -152,8 +163,8 @@ module ActiveRecord # Sets the value of inheritance_column def inheritance_column=(value) - @original_inheritance_column = inheritance_column - @inheritance_column = value.to_s + @inheritance_column = value.to_s + @explicit_inheritance_column = true end def sequence_name @@ -165,7 +176,8 @@ module ActiveRecord end def reset_sequence_name #:nodoc: - self.sequence_name = connection.default_sequence_name(table_name, primary_key) + @explicit_sequence_name = false + @sequence_name = connection.default_sequence_name(table_name, primary_key) end # Sets the name of the sequence to use when generating ids to the given @@ -183,8 +195,8 @@ module ActiveRecord # self.sequence_name = "projectseq" # default would have been "project_seq" # end def sequence_name=(value) - @original_sequence_name = @sequence_name if defined?(@sequence_name) @sequence_name = value.to_s + @explicit_sequence_name = true end # Indicates whether the table associated with this class exists @@ -206,6 +218,26 @@ module ActiveRecord @columns_hash ||= Hash[columns.map { |c| [c.name, c] }] end + def column_types # :nodoc: + @column_types ||= decorate_columns(columns_hash.dup) + end + + def decorate_columns(columns_hash) # :nodoc: + return if columns_hash.empty? + + serialized_attributes.each_key do |key| + columns_hash[key] = AttributeMethods::Serialization::Type.new(columns_hash[key]) + end + + columns_hash.each do |name, col| + if create_time_zone_conversion_attribute?(name, col) + columns_hash[name] = AttributeMethods::TimeZoneConversion::Type.new(col) + end + end + + columns_hash + end + # Returns a hash where the keys are column names and the values are # default values when instantiating the AR object for this table. def column_defaults @@ -227,13 +259,12 @@ module ActiveRecord # and true as the value. This makes it possible to do O(1) lookups in respond_to? to check if a given method for attribute # is available. def column_methods_hash #:nodoc: - @dynamic_methods_hash ||= column_names.inject(Hash.new(false)) do |methods, attr| + @dynamic_methods_hash ||= column_names.each_with_object(Hash.new(false)) do |attr, methods| attr_name = attr.to_s methods[attr.to_sym] = attr_name methods["#{attr}=".to_sym] = attr_name methods["#{attr}?".to_sym] = attr_name methods["#{attr}_before_type_cast".to_sym] = attr_name - methods end end @@ -268,13 +299,23 @@ module ActiveRecord undefine_attribute_methods connection.schema_cache.clear_table_cache!(table_name) if table_exists? - @column_names = @content_columns = @column_defaults = @columns = @columns_hash = nil - @dynamic_methods_hash = @inheritance_column = nil - @arel_engine = @relation = nil + @arel_engine = nil + @column_defaults = 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 end - def clear_cache! # :nodoc: - connection.schema_cache.clear! + # 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 @@ -282,8 +323,7 @@ module ActiveRecord # Guesses the table name, but does not decorate it with prefix and suffix information. def undecorated_table_name(class_name = base_class.name) table_name = class_name.to_s.demodulize.underscore - table_name = table_name.pluralize if pluralize_table_names - table_name + pluralize_table_names ? table_name.pluralize : table_name end # Computes and returns a table name according to default conventions. |