Working on more examples

examples/blog.rb

@@ -0,0 +1,78 @@
+require "rubygems"
+require "benchwarmer"
+
+class Exception
+  def errmsg
+    "%s: %s\n%s" % [self.class, message, (backtrace || []).join("\n") << "\n"]
+  end
+end
+  
+$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
+require 'mongo'
+
+include XGen::Mongo::Driver
+
+host = ARGV[0] || 'localhost'
+port = ARGV[1] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
+
+LINE_SIZE = 120
+
+puts ">> Connecting to #{host}:#{port}"
+DB = Mongo.new(host, port).db('ruby-mongo-blog')
+
+puts "=" * LINE_SIZE
+puts "Adding authors"
+authors = DB.collection "authors"
+authors.clear
+# authors.create_index "meta", :_id => 1, :name => 1, :age => 1
+puts "-" * LINE_SIZE
+borges = authors << { :name => "Jorge Luis Borges", :email => "jorge@borges.com", :age => 123 }
+puts "borges : #{borges.inspect}"
+shaksp = authors << { :name => "William Shakespeare", :email => "william@shakespeare.com", :age => 587 }
+puts "shaksp : #{shaksp.inspect}"
+puts "-" * LINE_SIZE
+puts "authors ordered by age ascending"
+puts "-" * LINE_SIZE
+authors.find({}, nil, :sort => :age).each {|x| puts "%-25.25s : %-25.25s : %3i" % [x['name'], x['email'], x['age']]}
+
+puts "=" * LINE_SIZE
+puts "Adding users"
+users = DB.collection "users"
+users.clear
+# users.create_index "meta", :_id => 1, :login => 1, :name => 1
+puts "-" * LINE_SIZE
+jdoe = users << { :login => "jdoe", :name => "John Doe", :email => "john@doe.com" }
+puts "jdoe : #{jdoe.inspect}"
+lsmt = users << { :login => "lsmith", :name => "Lucy Smith", :email => "lucy@smith.com" }
+puts "lsmt : #{lsmt.inspect}"
+puts "-" * LINE_SIZE
+puts "users ordered by login ascending"
+puts "-" * LINE_SIZE
+users.find({}, nil, :sort => :login).each {|x| puts "%-10.10s : %-25.25s : %-25.25s" % [x['login'], x['name'], x['email']]}
+
+puts "=" * LINE_SIZE
+puts "Adding articles"
+articles = DB.collection "articles"
+articles.clear
+# articles.create_index "meta", :_id => 1, :author_id => 1, :title => 1
+puts "-" * LINE_SIZE
+begin
+  art1 = articles << { :title => "Caminando por Buenos Aires", :body => "Las callecitas de Buenos Aires tienen ese no se que...", :author_id => borges["_id"].to_s }
+  puts "art1 : #{art1.inspect}"
+rescue => e
+  puts "Error: #{e.errmsg}"
+end
+begin
+  art2 = articles << { :title => "I must have seen thy face before", :body => "Thine eyes call me in a new way", :author_id => shaksp["_id"].to_s, :comments => [ { :user_id => jdoe["_id"].to_s, :body => "great article!" } ] }
+  puts "art2 : #{art2.inspect}"
+rescue => e
+  puts "Error: #{e.errmsg}"
+end
+puts "-" * LINE_SIZE
+puts "articles ordered by title ascending"
+puts "-" * LINE_SIZE
+articles.find({}, nil, :sort => :title).each {|x| puts "%-25.25s : %-25.25s" % [x['title'], x['author_id']]}
+
+puts ">> Closing connection"
+DB.close
+puts "closed"