Module: LoyalCore::ActsAsBitAble::ClassMethods

Defined in:
lib/loyal_core/acts/bit_able.rb

Instance Method Summary collapse

Instance Method Details

#loyal_core_acts_as_bit_able(*args) ⇒ Object

field_name options:

- config:

定义了：

- filter_by_bit_color *names
- color_bit_set  name
- color_bit_unset  name
- color_bit?  name
- color_bit_reset!
- color_bit_list
- color_bit_list= *names



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# File 'lib/loyal_core/acts/bit_able.rb', line 43

def loyal_core_acts_as_bit_able *args
  options = args.extract_options!

  field_name = args.first

  if field_name.nil?
    raise "#{self}.loyal_core_acts_as_bit_able field_name can not be nil"
  end

  config = options[:config] || ::LoyalCore::ConfigUtil.new

  scope :"filter_by_bit_#{field_name}", ->(*names_args) do
    _values = loyal_core_acts_as_bit_able_util_get_values *names_args, config

    if _values.any?
      where :"#{field_name}" => _values
    end
  end

  # attr_accessor :"#{field_name}_values"

  self.class.send :define_method, :"#{field_name}_bit_config" do
    config
  end

  # level_bit_set name
  # level_bit? name
  # level_bit_unset name

  define_method :"#{field_name}_bit_set" do |name, saved=false|
    _config = config.at name

    result = self.send("#{field_name}=", (self.send(field_name) | _config.value))
    self.save if saved
    result
  end

  define_method :"#{field_name}_bit?" do |name, saved=false|
    _config = config.at name
    value = _config.value

    result = (self.send(field_name) & value) == value
    self.save if saved
    result
  end

  define_method :"#{field_name}_bit_unset" do |name, saved=false|
    _config = config.at name
    value = _config.value

    result = if self.send("#{field_name}_bit?", name)
               self.send("#{field_name}=", (self.send(field_name) - value))
             else
               self.send("#{field_name}")
             end

    self.save if saved

    result
  end

  # 重置
  define_method :"#{field_name}_bit_reset!" do |saved=false|
    result = self.send("#{field_name}=", 0)

    self.save if saved

    result
  end

  #
  # colors_bit_list: 获取bit配置列表
  #  
  define_method :"#{field_name}_bit_list" do
    config.keys.inject([]) do |result, name|
      if config.at(name).value.to_i > 0 && self.send(:"#{field_name}_bit?", name)
        result << name
      end

      result
    end
  end

  define_method :"#{field_name}_bit_list=" do |names|
    self.send :"#{field_name}_bit_reset!", false

    names.each do |name|
      self.send :"#{field_name}_bit_set", name, false
    end

    self.send :"#{field_name}_bit_list"
  end
end

#loyal_core_acts_as_bit_able_util_get_values(*names, config) ⇒ Object 



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# File 'lib/loyal_core/acts/bit_able.rb', line 11

def loyal_core_acts_as_bit_able_util_get_values *names, config
  values = []

  ::LoyalCore::ArrayUtil.init(names).each do |_name|
    _config = config.at _name

    if _config && (_val = _config.value)
      (1.upto(2 ** config.max_value)).each do |__val|
        if __val & _val == _val
          values << __val
        end
      end
    end
  end

  values.uniq.sort
end