many examples
This commit is contained in:
Jim Menard
parent
bd602ba369
commit
14210b0ca3
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@ -0,0 +1,35 @@
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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require 'pp'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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# Erase all records from collection, if any
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coll.clear
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admin = db.admin
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# Profiling level set/get
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p admin.profiling_level
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# Start profiling everything
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admin.profiling_level = :all
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# Read records, creating a profiling event
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coll.find().to_a
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# Stop profiling
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admin.profiling_level = :off
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# Print all profiling info
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pp admin.profiling_info
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# Destroy the collection
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coll.drop
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@ -8,7 +8,7 @@ host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = XGen::Mongo::Driver::Mongo.new(host, port).db('ruby-mongo-examples-complex')
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db = XGen::Mongo::Driver::Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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coll.clear
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@ -0,0 +1,23 @@
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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db.drop_collection('test')
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# A capped collection has a max size and optionally a max number of records.
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# Old records get pushed out by new ones once the size or max num records is
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# reached.
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coll = db.create_collection('test', :capped => true, :size => 1024, :max => 12)
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100.times { |i| coll.insert('a' => i+1) }
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# We will only see the last 12 records
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coll.find().each { |row| p row }
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coll.drop
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@ -1,6 +1,3 @@
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require "rubygems"
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require "benchwarmer"
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class Exception
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def errmsg
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"%s: %s\n%s" % [self.class, message, (backtrace || []).join("\n") << "\n"]
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@ -38,7 +35,7 @@ OBJS_COUNT = 100
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puts ">> Generating test data"
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msgs = %w{hola hello aloha ciao}
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arr = OBJS_COUNT.times.map {|x| { :number => x, :rndm => (rand(5)+1), :msg => msgs[rand(4)] }}
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arr = (0...OBJS_COUNT).collect {|x| { :number => x, :rndm => (rand(5)+1), :msg => msgs[rand(4)] }}
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puts "generated"
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puts ">> Inserting data (#{arr.size})"
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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# Erase all records from collection, if any
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coll.clear
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# Insert 3 records
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3.times { |i| coll.insert({'a' => i+1}) }
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# Collection names in database
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p db.collection_names
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# More information about each collection
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p db.collections_info
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# Index information
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db.create_index('test', 'index_name', ['a'])
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p db.index_information('test')
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# Destroy the collection
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coll.drop
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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require 'pp'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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# Remove all records, if any
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coll.clear
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# Insert three records
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coll.insert('a' => 1)
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coll.insert('a' => 2)
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coll.insert('b' => 3)
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# Count.
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puts "There are #{coll.count()} records."
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# Find all records. find() returns a Cursor.
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cursor = coll.find()
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# Print them. Note that all records have an _id automatically added by the
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# database. See pk.rb for an example of how to use a primary key factory to
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# generate your own values for _id.
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cursor.each { |row| pp row }
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# Cursor has a to_a method that slurps all records into memory.
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rows = coll.find().to_a
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rows.each { |row| pp row }
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# See Collection#find. From now on in this file, we won't be printing the
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# records we find.
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coll.find('a' => 1)
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# Find records sort by 'a', offset 1, limit 2 records.
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# Sort can be single name, array, or hash.
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coll.find({}, {:offset => 1, :limit => 2, :sort => 'a'})
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# Find all records with 'a' > 1. There is also $lt, $gte, and $lte.
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coll.find({'a' => {'$gt' => 1}})
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coll.find({'a' => {'$gt' => 1, '$lte' => 3}})
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# Find all records with 'a' in a set of values.
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coll.find('a' => {'$in' => [1,2]})
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# Find by regexp
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coll.find('a' => /[1|2]/)
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# Print query explanation
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pp coll.find('a' => /[1|2]/).explain()
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# Use a hint with a query. Need an index. Hints can be stored with the
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# collection, in which case they will be used with all queries, or they can be
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# specified per query, in which case that hint overrides the hint associated
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# with the collection if any.
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coll.create_index('test_a_index', 'a')
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coll.hint = 'a'
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# You will see a different explanation now that the hint is in place
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pp coll.find('a' => /[1|2]/).explain()
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# Override hint for single query
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coll.find({'a' => 1}, :hint => 'b')
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@ -7,11 +7,17 @@ host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples-simple')
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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# Erase all records from collection, if any
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coll.clear
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# Insert 3 records
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3.times { |i| coll.insert({'a' => i+1}) }
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puts "There are #{coll.count()} records in the test collection. Here they are:"
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coll.find().each { |doc| puts doc.inspect }
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# Destroy the collection
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coll.drop
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@ -0,0 +1,34 @@
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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db.drop_collection('does-not-exist')
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db.create_collection('test')
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db.strict = true
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begin
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# Can't reference collection that does not exist
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db.collection('does-not-exist')
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puts "error: expected exception"
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rescue => ex
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puts "expected exception: #{ex}"
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end
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begin
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# Can't create collection that already exists
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db.create_collection('test')
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puts "error: expected exception"
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rescue => ex
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puts "expected exception: #{ex}"
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end
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db.strict = false
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db.drop_collection('test')
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$LOAD_PATH[0,0] = File.join(File.dirname(__FILE__), '..', 'lib')
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require 'mongo'
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require 'pp'
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include XGen::Mongo::Driver
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host = ENV['MONGO_RUBY_DRIVER_HOST'] || 'localhost'
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port = ENV['MONGO_RUBY_DRIVER_PORT'] || XGen::Mongo::Driver::Mongo::DEFAULT_PORT
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puts "Connecting to #{host}:#{port}"
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db = Mongo.new(host, port).db('ruby-mongo-examples')
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coll = db.collection('test')
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# Remove all records, if any
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coll.clear
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# Insert record with all sorts of values
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coll.insert('array' => [1, 2, 3],
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'string' => 'hello',
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'hash' => {'a' => 1, 'b' => 2},
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'date' => Time.now, # seconds only; millisecs are not stored
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'oid' => ObjectID.new,
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'binary' => Binary.new([1, 2, 3]),
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'int' => 42,
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'float' => 33.33333,
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'regex' => /foobar/i,
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'boolean' => true,
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'$where' => 'this.x == 3', # special case of string
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'dbref' => DBRef.new(nil, 'dbref', db, coll.name, ObjectID.new),
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# NOTE: the undefined type is not saved to the database properly. This is a
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# Mongo bug. However, the undefined type may go away completely.
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# 'undef' => Undefined.new,
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'null' => nil,
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'symbol' => :zildjian)
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coll.find().each { |row| pp row }
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coll.clear
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