Class: BaseDecorator

Inherits:
Draper::Decorator
  • Object
show all
Extended by:
Dry::Configurable
Defined in:
app/decorators/base_decorator.rb

Constant Summary collapse

DEFINITIONS = 
{
  # 属性定义列表
  attribute_types: {},

  # index page用到的字段/筛选/搜索
  collection_filters: [],
  collection_search: {},
  collection_attributes: [],

  # new/edit page用到的字段列表
  form_attributes: [],
  edit_form_attributes: [],

  # show page 用到的字段列表
  show_page_attributes: [],

  # class/instance 操作列表
  permitted_class_methods: {},
  permitted_instance_methods: {},

  extra_permitted_attributes: {}
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.attribute_type_for(attribute_name, quiet = false) ⇒ Object

获取某个属性的定义



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# File 'app/decorators/base_decorator.rb', line 128

def attribute_type_for(attribute_name, quiet = false)
  config.attribute_types.fetch(attribute_name.to_sym) do
    fail attribute_not_found_message(attribute_name) unless quiet
  end.deep_dup
end

.decorate_to(klass) ⇒ Object

设置对应的class



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# File 'app/decorators/base_decorator.rb', line 113

def decorate_to(klass)
  config.model = klass
end

.inherited(subclass) ⇒ Object 



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# File 'app/decorators/base_decorator.rb', line 56

def inherited(subclass)
  super

  subclass.configure do |config|
    config.model = subclass.name.remove(/Decorator\Z/).singularize.safe_constantize

    scope = config.model.model_name.singular
    config.attribute_types = I18n.t(['attribute_types', scope].join('.'), default: {}).deep_dup
    I18n.t(['decorator', scope].join('.'), default: {}).map { |key, value| config.send("#{key}=", value) }

    config.model.columns_hash.each do |name, col|
      name = name.to_sym
      if config.attribute_types[name].nil?
        if col.array
          config.attribute_types[name] = {
              type: 'collection_select',
              collection: '[]',
              text_method: :last,
              value_method: :first,
            }
        else
          case col.type
          when 'integer', 'float'
            config.attribute_types[name] = {
              type: 'number_field',
              required: false
            }
          when 'datetime'
            config.attribute_types[name] = {
              type: 'datetime_select',
              required: false
            }
          when 'boolean'
            config.attribute_types[name] = {
              type: 'collection_check_boxes',
              required: false
            }
          when 'date'
            config.attribute_types[name] = {
              type: 'date_select',
              required: false
            }
          else
            config.attribute_types[name] = {
              type: 'text_field',
              required: false
            }
          end
        end

      end
    end

  end
end

.permitted_attributes ⇒ Object

表单允许提交的参数



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# File 'app/decorators/base_decorator.rb', line 140

def permitted_attributes
  _attributes = config.form_attributes

  if _attributes.is_a?(Hash)
    profiles = _attributes.fetch(:profiles, [])
    _attributes = profiles.collect { |profile| _attributes.fetch(profile.to_sym, []) }.flatten.uniq
    # _attributes = _attributes.each {|attr| _attributes << "#{attr}_attributes"}
  end

  array, hash = [], {}
  _attributes.each do |field_name|
    attribute_type_for(field_name)[:is_array] ? hash.merge!(field_name => []) : array.push(field_name)
  end

  [array, hash].append(config.extra_permitted_attributes)
  #.append(filters: config.collection_filters.keys)
end

.permitted_class_methods_for(action_name) ⇒ Object 



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# File 'app/decorators/base_decorator.rb', line 158

def permitted_class_methods_for(action_name)
  config.permitted_class_methods.fetch(action_name.to_sym, [])
end

.permitted_instance_methods_for(action_name) ⇒ Object 



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# File 'app/decorators/base_decorator.rb', line 162

def permitted_instance_methods_for(action_name)
  config.permitted_instance_methods.fetch(action_name.to_sym, [])
end

.required_attributes ⇒ Object

表单必填字段列表



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# File 'app/decorators/base_decorator.rb', line 135

def required_attributes
  config.attribute_types.collect { |name, field| name if field[:required] }.compact
end

Instance Method Details

#human(field) ⇒ Object 



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# File 'app/decorators/base_decorator.rb', line 35

def human(field)
  value = try("human_#{field}") || try(field) || object.try("#{field}_text") || object.try(field)
  value = field.split('.').inject(object) {
    |result, method| result.try(method)
  } if field.include?('.')

  case value
    when ActiveSupport::TimeWithZone
      value.strftime('%Y-%m-%d %H:%M:%S')
    when TrueClass
      I18n.t("#{field}.true_html", default: '-').html_safe
    when FalseClass
      I18n.t("#{field}.false_html", default: '-').html_safe
    else
      value.presence || '-'
  end
end