ruby - Cannot chain the searching in rails -

i'm trying searching title/body simple search rails. when tried put matched string in title/body, cannot display expect result. please me have check? thank in advance

article.rb

def self.search(query)     # where(:title, query) -> return exact match of query     where("title ? or body ?", "%#{query}%", "%#{query}%")   end  

controller

if params[:search]       @articles = article.search(params[:search])     #@articles = article.where(["title || body ?","%#{params[:search]}%"])     else       @articles = article.all     end 

show

<%= form_tag(articles_path, :method => "get", id: "search-form") %> <%= text_field_tag :search, params[:search], placeholder: "title or body" %>  <button class="btn btn-success-outline" type="submit">search</button> 

please details @ github link : https://github.com/khoinguyen91/coderschool_blog

ok, took quick @ rest of code on github , problem here:

def index   #@articles = article.all   if params[:search]     @articles = article.search(params[:search])     #@articles = article.where(["title || body ?","%#{params[:search]}%"])   else     @articles = article.all   end   @markdown = redcarpet::markdown.new(redcarpet::render::html)   if params[:tag]     @articles = article.tagged_with(params[:tag])   else     @articles = article.all   end end 

after checking params[:search] you're checking params[:tag] blank when submitting search form. means @articles gets replaced full list of articles (@articles = article.all).