Question

请帮助我正在写我的ROR博客，并收到错误“参数缺失或值为空：文章”。

(Application Trace | Framework Trace | Full Trace
app/controllers/articles_controller.rb:55:in `article_params'
app/controllers/articles_controller.rb:31:in `search')

这是我的搜索方法和私有方法：

def search
    if article_params[:search].blank?
      @articles = Article.all
    else
      @articles = Article.search(params)
    end
  end

private
  def article_params
    params.require(:article).permit(:title, :text)
  end
end

在这个主题ActionController::ParameterMissing in UsersController#create之后，我从以下方面改变了我的偏见：

        <div class="form-inline mt-2 mt-md-0">
          <%= form_tag search_articles_path, method: :get do %>
            <%= text_field_tag :search, nil, placeholder: "Search", class: "form-control mr-sm-2" %>
            <%= submit_tag "Search", class: "btn btn-light my-2 my-sm-0" %>
          <% end %>
        </div>

至：

<div class="form-inline mt-2 mt-md-0">
  <%= form_for @article, search_articles_path, method: :get do |f| %>
    <%= f.text_field :search, placeholder: "Search", class: "form-control mr-sm-2" %>
    <%= f.submit "Search", class: "btn btn-light my-2 my-sm-0" %>
  <% end %>
</div>

它也不起作用。

Answer 1

您需要允许搜索参数，还要调用方法

def search
  if article_params[:search].blank?
    @articles = Article.all
  else
    @articles = Article.search(article_params)
  end
end


def article_params
  params.require(:article).permit(:title, :text, :search)
end

ArticlesController＃search中的ActionController :: ParameterMissing

1 个答案: