当我尝试获取所有类别(索引操作)时出现错误:
undefined local variable or method `json'
但在表演中一切都很好。所有文件都有 .jbuilder 扩展名。这是控制器代码:
def index
@categories = Category.all
end
# GET /categories/1
# GET /categories/1.json
def show
@category = Category.find(params[:id])
end
堆栈跟踪:
app/views/categories/index.json.builder:1:in
_app_views_categories_index_json_builder___502133872307116590_70140532925300' actionpack (3.2.11) lib/action_view/template.rb:145:in
block in render '
activesupport (3.2.11) lib/active_support/notifications.rb:125:in render'instrument'
actionpack (3.2.11) lib/action_view/template.rb:143:in