[RUBY] Let's make a search function with Rails (ransack)


This time, we will create a search function using a gem called ransack. ransack is a very useful gem that makes it easy to create complex search functions with less code. Also, since you can easily create a sort function with ransack, we will also create it.

Implementation of basic search results

The target of this search is the stretch (stretchs table) list and its category (categories table) list. A search window will be provided on the stretch list screen (index view).

install gem

gem 'ransack';

Install with bundle install


Add a search window to the stretch index view

<div class= serch.id>
      <%= search_form_for @q, class:'form-inline' ,url: stretchs_path do |f| %>
        <%= f.search_field :action_muscles_or_name_cont, class: 'form-control input-lg', placeholder: "Enter the stretch name and muscle name" ,data: {"turbolinks" => false}%>
        <%= f.submit "Search", class: "btn btn-success btn-lg" %>
      <% end %>

Adjust with css

.form-inline .form-control {
    display: inline-block;
    width: 80%;


class StretchsController < ApplicationController
  def index
    #Search function(Search word params[:q]Receive at @stretchs)
    @q = Stretch.all.ransack(params[:q])
    @stretchs = @q.result(distinct: true).page(params[:page])

Receive the search word with params [: q], put the corresponding data in the search in @stretchs, It is a form to return to the index view again.

This completes the implementation of the simple search function.


This time I created a search function using ransack. If you find something wrong, please teach me.

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