index.html.erb

<%= gmaps4rails(@json) %>

<%= form_tag places_path, :method => :get do %>
	<%= text_field_tag :search, params[:search], placeholder: "Enter your zipcode or city", class: "search-query"%>
	<%= submit_tag "Search Nearby", :name => nil, class: "btn btn-flat"%>
<% end %>

place.rb

class Place < ActiveRecord::Base
  
  acts_as_gmappable For Google Maps                              
  
  #For Google Maps                               
  def gmaps4rails_address
       "#{address}, #{city}, #{state}, #{zipcode}"
     end

  geocoded_by :complete_address
  after_validation :geocode, :if => :check_address_changed?
    
  def complete_address
    [address, city, state, zipcode].compact.join(', ')
  end
  
  def check_address_changed?
    attrs = %w(address city state zipcode)
    attrs.any?{|a| send "#{a}_changed?"}
  end
  
end

places_controller.rb

def index
    if params[:search].present?
      @places = Place.near(params[:search], 100, :order => :distance).paginate(:page => params[:page], :per_page => 10)
    else
      @places = Place.scoped.paginate(:page => params[:page], :per_page => 10)
    end
    
    @restaurants = @places.where("category = ?", "Restaurant")
    @businesses = @places.where("category = ?", "Business")
    
    @json = @places.to_gmaps4rails For Google Maps

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @places }
    end
  end