Add basic Entity search using pg_search. Ongoing #2

Gemfile

@@ -57,6 +57,7 @@ gem 'cancan'
 gem 'figaro'
 gem 'stringex'
 gem 'kaminari'
+gem 'pg_search'
 gem 'acts-as-taggable-on'
 gem 'shortcodes'
 gem 'font-awesome-rails'

Gemfile.lock

@@ -132,6 +132,10 @@ GEM
       mini_portile (~> 0.5.0)
     orm_adapter (0.4.0)
     pg (0.16.0)
+    pg_search (0.7.0)
+      activerecord (>= 3.1)
+      activesupport (>= 3.1)
+      arel
     polyglot (0.3.3)
     pry (0.9.12.2)
       coderay (~> 1.0.5)
@@ -272,6 +276,7 @@ DEPENDENCIES
   mini_magick
   newrelic_rpm
   pg
+  pg_search
   pry-rails
   rails (= 4.0.0)
   rails_12factor

README.md

@@ -70,6 +70,7 @@ Set up a daily auto-backup by enabling the add-on:
  * StringEx: friendly URLs
  * RailsAdmin: the admin panel
  * Kaminari: pagination
+ * pg_search: full text search (Postgres)
  * Carrierwave + Fog: imageuploads
  * CKEditor: rich-content editor
  * ActsAsTaggableOn: tags

app/assets/stylesheets/search.css

@@ -0,0 +1,37 @@
+/* Taken from http://bootsnipp.com/snipps/stylish-search-form */
+#custom-search-form {
+  margin:0;
+  margin-top: 10px;
+  padding: 0;
+}
+
+#custom-search-form .search-query {
+  padding-right: 3px;
+  padding-right: 4px \9;
+  padding-left: 3px;
+  padding-left: 4px \9;
+  /* IE7-8 doesn't have border-radius, so don't indent the padding */
+  margin-bottom: 0;
+  -webkit-border-radius: 3px;
+  -moz-border-radius: 3px;
+  border-radius: 3px;
+}
+
+#custom-search-form button {
+  border: 0;
+  background: none;
+  /** belows styles are working good */
+  padding: 2px 5px;
+  margin-top: 2px;
+  position: relative;
+  left: -28px;
+  /* IE7-8 doesn't have border-radius, so don't indent the padding */
+  margin-bottom: 0;
+  -webkit-border-radius: 3px;
+  -moz-border-radius: 3px;
+  border-radius: 3px;
+}
+
+.search-query:focus + button {
+  z-index: 3;
+}

app/controllers/search_controller.rb

@@ -0,0 +1,7 @@
+class SearchController < ApplicationController
+  def search
+    @query = params[:q]
+
+    @results = PgSearch.multisearch(@query).page(params[:page]).per(15)
+  end
+end

app/models/entity.rb

@@ -1,15 +1,18 @@
 class Entity < ActiveRecord::Base
-  extend Enumerize
-  enumerize :priority, in: {:high => 1, :medium => 2, :low => 3}
-
-  mount_uploader :avatar, AvatarUploader
-
   has_many :entity_photo_associations, dependent: :delete_all
   has_many :related_photos, through: :entity_photo_associations, source: :photo
 
   has_many :relations_as_source, foreign_key: :source_id, class_name: Relation, inverse_of: :source
   has_many :relations_as_target, foreign_key: :target_id, class_name: Relation, inverse_of: :target
 
+  include PgSearch
+  multisearchable :against => [:name, :short_name, :description]
+
+  extend Enumerize
+  enumerize :priority, in: {:high => 1, :medium => 2, :low => 3}
+
+  mount_uploader :avatar, AvatarUploader
+
   # Note: sync_url=true won't work here, because we are using a function (short_or_long_name),
   # so acts_as_url (Stringex) can't detect when the attribute has changed. Bug or feature?
   acts_as_url :short_or_long_name, url_attribute: :slug, only_when_blank: true

app/views/search/search.html.erb

@@ -0,0 +1,21 @@
+<!--start: Wrapper-->
+<div id="wrapper" class="full">       
+
+  <!--start: Row -->
+  <div class="row-fluid">
+
+    <div class="span8 separate">
+    <h3>Resultados para '<%= @query %>'</h3>
+
+    <ul>
+    <% @results.each do |result| %>
+      <li><%= result.searchable.name %></li>
+    <% end %>
+    </ul>
+
+    <%= paginate @results %>    
+    </div>
+
+  </div>
+
+</div>

app/views/shared/_header.html.erb

@@ -18,6 +18,18 @@
             <%= render 'devise/menu/registration_items' %>
             <%= render 'devise/menu/login_items' %>
             <li ><%= link_to 'Admin', rails_admin_path %></li>
+
+            <%= form_tag search_path, :id => 'custom-search-form', 
+                                      :class => 'form-search form-horizontal pull-right', 
+                                      :method => 'get' do %>
+              <div class="input-append span2">
+                <%= text_field_tag  :q, 
+                                    params[:q], 
+                                    :class => 'search-query', 
+                                    :placeholder => 'Busca...' %>
+                <button type="submit" class="btn"><i class="icon-search"></i></button>
+              </div>
+            <% end %>
           </ul>
         </div>
       </div>

config/initializers/pg_search.rb

@@ -0,0 +1 @@
+# TODO: Configure search. See https://github.com/casecommons/pg_search

config/routes.rb

@@ -5,7 +5,6 @@
 
   get '/admin/import' => 'import#import'
   post '/admin/commit' => 'import#commit'
-
   mount RailsAdmin::Engine => '/admin', :as => 'rails_admin'
 
   resources :posts, only: [:index, :show]
@@ -20,6 +19,9 @@
     end
   end
 
+  # Global search
+  get '/search' => 'search#search', :as => 'search'
+
   # We add this route just so ShowInApp works in Rails Admin
   resources :entities, only: [:show]
 

db/migrate/20130825102612_create_pg_search_documents.rb

@@ -0,0 +1,17 @@
+class CreatePgSearchDocuments < ActiveRecord::Migration
+  def self.up
+    say_with_time("Creating table for pg_search multisearch") do
+      create_table :pg_search_documents do |t|
+        t.text :content
+        t.belongs_to :searchable, :polymorphic => true
+        t.timestamps
+      end
+    end
+  end
+
+  def self.down
+    say_with_time("Dropping table for pg_search multisearch") do
+      drop_table :pg_search_documents
+    end
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20130824205902) do
+ActiveRecord::Schema.define(version: 20130825102612) do
 
   create_table "entities", force: true do |t|
     t.string   "name",                                            null: false
@@ -62,6 +62,14 @@
   add_index "facts_relations", ["fact_id"], name: "index_facts_relations_on_fact_id", using: :btree
   add_index "facts_relations", ["relation_id"], name: "index_facts_relations_on_relation_id", using: :btree
 
+  create_table "pg_search_documents", force: true do |t|
+    t.text     "content"
+    t.integer  "searchable_id"
+    t.string   "searchable_type"
+    t.datetime "created_at"
+    t.datetime "updated_at"
+  end
+
   create_table "photos", force: true do |t|
     t.string   "file"
     t.string   "copyright"

spec/controllers/search_controller_spec.rb

@@ -0,0 +1,5 @@
+require 'spec_helper'
+
+describe SearchController do
+
+end