Sha256: 23a11899eff9f2f26ac564561c986d7faffa505b4318332505a4c4fa5bebd9ae
Contents?: true
Size: 1.36 KB
Versions: 77
Compression:
Stored size: 1.36 KB
Contents
$LOAD_PATH.unshift(File.expand_path('../../lib', __FILE__))
require 'mongo_mapper'
require 'pp'
MongoMapper.database = 'testing'
class User
include MongoMapper::Document
# plain old vanilla scopes with fancy queries
scope :johns, where(:name => 'John')
# plain old vanilla scopes with hashes
scope :bills, :name => 'Bill'
# dynamic scopes with parameters
scope :by_name, lambda { |name| where(:name => name) }
scope :by_ages, lambda { |low, high| where(:age.gte => low, :age.lte => high) }
# Yep, even plain old methods work as long as they return a query
def self.by_tag(tag)
where(:tags => tag)
end
# You can even make a method that returns a scope
def self.twenties; by_ages(20, 29) end
key :name, String
key :tags, Array
end
User.collection.remove # empties collection
User.create(:name => 'John', :tags => %w[ruby mongo], :age => 28)
User.create(:name => 'Bill', :tags => %w[ruby mongo], :age => 30)
User.create(:name => 'Frank', :tags => %w[mongo], :age => 35)
User.create(:name => 'Steve', :tags => %w[html5 css3], :age => 27)
# simple scopes
pp User.johns.first
pp User.bills.first
# scope with arg
pp User.by_name('Frank').first
# scope with two args
pp User.by_ages(20, 29).all
# chaining class methods on scopes
pp User.by_ages(20, 40).by_tag('ruby').all
# scope made using method that returns scope
pp User.twenties.all
Version data entries
77 entries across 77 versions & 9 rubygems