Mongoid Search is a simple full text search implementation for Mongoid ORM.
In your Gemfile:
gem 'mongoid_search'
Then:
bundle install
class Product
include Mongoid::Document
include Mongoid::Search
field :brand
field :name
references_many :tags
refereced_in :category
search_in :brand, :name, :tags => :name, :category => :name
end
class Tag
include Mongoid::Document
field :name
referenced_in :product
end
class Category
include Mongoid::Document
field :name
references_many :products
end
Now when you save a product, you get a _keywords field automatically:
p = Product.new :brand => "Apple", :name => "iPhone"
p.tags << Tag.new(:name => "Amazing")
p.tags << Tag.new(:name => "Awesome")
p.tags << Tag.new(:name => "Superb")
p.save
=> true
p._keywords
Now you can run search, which will look in the _keywords field and return all matching results:
Product.search("apple iphone").size
=> 1
Note that the search is case insensitive, and accept partial searching too:
Product.search("ipho").size
=> 1
Assuming you have a category with multiple products you can now use the following code to search for 'iphone' in products cheaper than $499
@category.products.where(:price.lt => 499).asc(:price).csearch('iphone')
In this case we have to use csearch, an alias for search, because since v2.0.0 Mongoid defines it's own Criteria.search method.
match: :any - match any occurrence :all - match all ocurrences Default is :any.
search_in :brand, :name, { :tags => :name }, { :match => :any }
Product.search("apple motorola").size
=> 1
search_in :brand, :name, { :tags => :name }, { :match => :all }
Product.search("apple motorola").size
=> 0
allow_empty_search: true - match any occurrence false - match all ocurrences Default is false.
search_in :brand, :name, { :tags => :name }, { :allow_empty_search => true }
Product.search("").size
=> 1
ignore_list: Pass in an ignore list location. Keywords in that list will be ignored.
search_in :brand, :name, { :tags => :name }, { :ignore_list => Rails.root.join("config", "ignorelist.yml") }
The list should look like:
ignorelist:
a, an, to, from, as
You can include how many keywords you like.
- Strip html with sanitize (https://github.com/rgrove/sanitize)
- Rewrite and test relevant search
- Move all configurations to a configuration file. Maybe /config/mongoid_search.yml.