How To Create A Search Function - Ruby On Rails - ruby

Question

Im trying to make a search function for an app. I have a service object called searches and all search logic is in this object.
When the search form is submitted with an about query #results in Search Controller is the following array.
=> [
[0] [],
[1] [
[0] About {
:id => 2,
:title => "About",
:slug => "about",
:meta_description => "",
:meta_keywords => "",
:content => "<p>Lorem ipsum about</p>",
:position => 1,
:published => true,
:on_menu => true,
:created_at => Wed, 13 Jan 2016 00:44:08 UTC +00:00,
:updated_at => Fri, 15 Jan 2016 04:05:52 UTC +00:00
}
],
[2] [],
[3] []
]
Here is my Search object. See how the User attributes are different then the Pages and NewsArticle? Good. Now go look at the view.
class SearchService
attr_accessor :query
def initialize(query)
#query = query
end
# searchable_fields_by_model
CONDITIONS_BY_MODEL = {
Page => [:title, :content],
NewsArticle => [:title, :content]
User => [:first_name, :last_name]
}
def raw_results
ActiveRecord::Base.transaction do
CONDITIONS_BY_MODEL.flat_map do |model, fields|
Array(fields).map do |field|
model.where(["#{field} LIKE ?", "%#{query}%"])
end
end
end
end
end
Below is my view. Currently the view will only display content and title. But my User has first_name and last_name therefore it won't display. I need a way to display the results of all Models and it needs to be clean so if i add another model to search with entirely different attributes it will still display. How would you do this?
.page-header
%h1 Search#index
- #results.each do |results|
- results.each do |r|
%p= r.title
%p= r.content
Search controller
class SearchController < ApplicationController
def index
#results = SearchService.new(params[:q]).results
end
end

Answer 1

How to fix this.
class SearchController < ApplicationController
def index
#results = SearchService.new(params[:q]).results
#page_results = []
#news_article_results = []
#category_results = []
#results.each do |resource|
if resource.class == Page
#page_results << resource
elsif resource.class == NewsArticle
#news_article_results << resource
elsif resource.class == Category
#category_results << resource
else
end
end
end
end
class SearchService
MIN_QUERY_LENGTH = 3
attr_accessor :query
def initialize(query)
raise ArgumentError if query.length < MIN_QUERY_LENGTH
#query = query
end
# searchable_fields_by_model
CONDITIONS_BY_MODEL = {
Page => [:title, :content],
NewsArticle => [:title, :content],
Category => :name,
}
def results
#results ||= ActiveRecord::Base.transaction do
CONDITIONS_BY_MODEL.flat_map do |model, fields|
Array(fields).flat_map do |field|
model.where(["#{field} LIKE ?", "%#{query}%"])
end
end
end
end
end
Here is my view
.page-header
%h1 Search Results
%h2= "For #{params[:q]}"
%br
%h2 Pages
- #page_results.each do |resource|
%p= link_to "#{resource.title}", page_path(resource.slug)
= resource.content.html_safe
%h2 News Article
- #news_article_results.each do |resource|
%p= link_to "#{resource.title}", news_article_path(resource.slug)
= resource.content.html_safe
%h2 Category
- #category_results.each do |resource|
%p= link_to "#{resource.name}", category_path(resource.slug)