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Rails Adding Filter Records Form

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As project start growing, amount of records grow all together. So to find needed record is becoming quite hard. And here comes search form to help us.

The idea of search form is pretty simple: to provide an user fields to type data and then filter records with SQL.

Lets say we have a blog with posts. And we need to find all posts for the last month:

  1. ./app/views/users/index.html.erb
<%= form_for '', method: :get do %>
  <%= label_tag 'name', 'First Name' %>
  <%= input_tag 'name', params[:name], id: 'name' %>

  <%= submit_tag "Filter", class: 'btn btn-primary' %>
<% end %>
  1. ./app/controllers/users_controller.rb
class UsersController < ApplicationController
  def index
    @users = User.all
    @users = User.where(name: params[:name]) if params[:name].present?

Submit click will send data to users#index endpoint which will render selected records matched that params[:name] value