module ActiveRecord::BitField::ClassMethods
Public Instance Methods
bit_field(args = {})
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@param [Hash] args オプションを含めた引数のハッシュ、キーがカラム名値の配列がフィールド名になる @option args [Boolean] :invret truthyな値を渡すとビットへのマッピング時にビットが0の状態を有効に1を無効にする
# File lib/active_record/bit_field.rb, line 37 def bit_field(args = {}) destructed_args = args.to_a argument = destructed_args.shift options = destructed_args.to_h raise "can't find arguments" unless argument column, fields = argument bit_field_set_column_fields(column, fields.dup) mapper = bit_field_create_mapper(fields) bit_field_set_column_mapper(column, mapper) bit_field_orverride_getter_method(column, options) bit_field_define_setter_method(column, options) bit_field_define_fields_method(column, fields, options) fields.each do |field| bit_field_define_inquire_method(column, field, options) bit_field_define_enable_method(column, field, options) bit_field_define_disable_method(column, field, options) end end
bit_field_create_mapper(fields)
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# File lib/active_record/bit_field.rb, line 60 def bit_field_create_mapper(fields) fields.map.with_index.inject({}) do |map, (field, bit_shift)| map[field.to_s] = 1 << bit_shift map end end
bit_field_define_disable_method(column, field, options)
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# File lib/active_record/bit_field.rb, line 151 def bit_field_define_disable_method(column, field, options) unless options[:invert] define_method "disable_#{column}_field" do |_field| bit_field_turn_bit_off_method(column, _field) end define_method "disable_#{field}" do bit_field_turn_bit_off_method(column, field) end else define_method "disable_#{column}_field" do |_field| bit_field_turn_bit_on_method(column, _field) end define_method "disable_#{field}" do bit_field_turn_bit_on_method(column, field) end end end
bit_field_define_enable_method(column, field, options)
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# File lib/active_record/bit_field.rb, line 131 def bit_field_define_enable_method(column, field, options) unless options[:invert] define_method "enable_#{column}_field" do |_field| bit_field_turn_bit_on_method(column, _field) end define_method "enable_#{field}" do bit_field_turn_bit_on_method(column, field) end else define_method "enable_#{column}_field" do |_field| bit_field_turn_bit_off_method(column, _field) end define_method "enable_#{field}" do bit_field_turn_bit_off_method(column, field) end end end
bit_field_define_fields_method(column, fields, options)
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# File lib/active_record/bit_field.rb, line 113 def bit_field_define_fields_method(column, fields, options) define_singleton_method "#{column}_fields" do bit_field_get_column_fields(column) end end
bit_field_define_inquire_method(column, field, options)
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# File lib/active_record/bit_field.rb, line 119 def bit_field_define_inquire_method(column, field, options) unless options[:invert] define_method "#{field}?" do bit_field_inquire_method(column, field) end else define_method "#{field}?" do !bit_field_inquire_method(column, field) end end end
bit_field_define_setter_method(column, options)
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# File lib/active_record/bit_field.rb, line 101 def bit_field_define_setter_method(column, options) unless options[:invert] define_method "set_#{column}_field" do |field, value| bit_field_setter_method(column, field, value) end else define_method "set_#{column}_field" do |field, value| bit_field_setter_method(column, field, !value) end end end
bit_field_get_column_fields(column)
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# File lib/active_record/bit_field.rb, line 71 def bit_field_get_column_fields(column) instance_variable_get("@_#{column}_fields") end
bit_field_get_column_mapper(column)
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# File lib/active_record/bit_field.rb, line 79 def bit_field_get_column_mapper(column) instance_variable_get("@_#{column}_mapper") end
bit_field_orverride_getter_method(column, options)
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# File lib/active_record/bit_field.rb, line 83 def bit_field_orverride_getter_method(column, options) unless options[:invert] define_method "#{column}" do self.class.bit_field_get_column_fields(column).reduce({}) do |mapping, field| mapping[field] = bit_field_inquire_method(column, field) mapping end end else define_method "#{column}" do self.class.bit_field_get_column_fields(column).reduce({}) do |mapping, field| mapping[field] = !bit_field_inquire_method(column, field) mapping end end end end
bit_field_set_column_fields(column, fields)
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# File lib/active_record/bit_field.rb, line 67 def bit_field_set_column_fields(column, fields) instance_variable_set("@_#{column}_fields", fields) end
bit_field_set_column_mapper(column, mapper)
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# File lib/active_record/bit_field.rb, line 75 def bit_field_set_column_mapper(column, mapper) instance_variable_set("@_#{column}_mapper", mapper) end