具有特定行动的康康能力

Question

我希望能够使designer2只添加/创建电池。我不确定我错过了什么。管理员将能够管理所有，设计师将能够管理电池但无法访问角色和用户。 Designer2只会创建新的但无法删除或编辑，并且无法访问用户/角色。

ability.rb中的代码

class Ability
  include CanCan::Ability

  def initialize(user)

    user ||= User.new # guest user (not logged in)
    if user.has_role? :admin

      can :manage, :all


    elsif user.has_role? :designer1
      can :manage, :Battery


    elsif user.has_role? :designer2
      can [:read,:add], Battery

    end

    else
      can :read, :all 
    end 
end

查看/电池/ index.html.slim

- model_class = Battery
form.navbar-search.pull-right
  form.input-append method="get"
    div.input-append
      input.form-control placeholder="Search" type="text" name="keyword" value="#{params[:keyword]}"
      - if params[:keyword]
        = link_to batteries_path, class: 'btn' do
          i.icon-remove
      button.btn type="submit"
        i.icon-search

div class="page-header"
  h1=t '.title', :default => model_class.model_name.human.pluralize.titleize
table class="table table-striped"
  thead
    tr

      th= model_class.human_attribute_name(:name)
      th= model_class.human_attribute_name(:battery_type)
      th= model_class.human_attribute_name(:manufacturer)
      th= model_class.human_attribute_name(:model)
      th= model_class.human_attribute_name(:volt)
      th= model_class.human_attribute_name(:capacity)
      th= model_class.human_attribute_name(:comments)

      / th= model_class.human_attribute_name(:created_at)
      - if can? :manage, Battery
        th=t '.actions', :default => t("helpers.actions")
  tbody
    - @batteries.each do |battery|
      tr

        td= battery.name
        td= battery.battery_type
        td= battery.manufacturer
        td= battery.model
        td= battery.volt.volt
        td= battery.capacity.capacity
        td= battery.comments
        / td=l battery.created_at
        - if can? :manage, Battery
          td
            = link_to t('.edit', :default => t("helpers.links.edit")), edit_battery_path(battery), :class => 'btn btn-mini'
            '
            = link_to t('.destroy', :default => t("helpers.links.destroy")), battery_path(battery), :method => :delete, :data => { :confirm => t('.confirm', :default => t("helpers.links.confirm", :default => 'Are you sure?')) }, :class => 'btn btn-mini btn-danger'

- if can? :manage, Battery
  = link_to t('.new', :default => t("helpers.links.new")), new_battery_path, :class => 'btn btn-primary'

= paginate @batteries, :theme => 'twitter-bootstrap'
br