Class: MockRedis::MultiDbWrapper

Inherits:
Object
  • Object
show all
Includes:
UndefRedisMethods
Defined in:
lib/mock_redis/multi_db_wrapper.rb

Instance Method Summary collapse

Methods included from UndefRedisMethods

included

Constructor Details

#initialize(db) ⇒ MultiDbWrapper

Returns a new instance of MultiDbWrapper.



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 7

def initialize(db)
  @db_index = 0

  @prototype_db = db.clone

  @databases = Hash.new {|h,k| h[k] = @prototype_db.clone}
  @databases[@db_index] = db
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args) ⇒ Object 



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 20

def method_missing(method, *args)
  current_db.send(method, *args)
end

Instance Method Details

#flushall ⇒ Object

Redis commands



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 33

def flushall
  @databases.values.each(&:flushdb)
  'OK'
end

#initialize_copy(source) ⇒ Object 



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 24

def initialize_copy(source)
  super
  @databases = @databases.clone
  @databases.keys.each do |k|
    @databases[k] = @databases[k].clone
  end
end

#move(key, db_index) ⇒ Object 



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 38

def move(key, db_index)
  src = current_db
  dest = db(db_index)

  if !src.exists(key) || dest.exists(key)
    false
  else
    case current_db.type(key)
    when 'hash'
      dest.hmset(key, *(src.hgetall(key).map{|k,v| [k,v]}.flatten))
    when 'list'
      while value = src.rpop(key)
        dest.lpush(key, value)
      end
    when 'set'
      while value = src.spop(key)
        dest.sadd(key, value)
      end
    when 'string'
      dest.set(key, src.get(key))
    when 'zset'
      src.zrange(key, 0, -1, :with_scores => true).each_slice(2) do |(m,s)|
        dest.zadd(key, s, m)
      end
    else
      raise ArgumentError,
      "Can't move a key of type #{current_db.type(key).inspect}"
    end

    src.del(key)
    true
  end
end

#respond_to?(method, include_private = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mock_redis/multi_db_wrapper.rb', line 16

def respond_to?(method, include_private=false)
  super || current_db.respond_to?(method, include_private)
end

#select(db_index) ⇒ Object 



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# File 'lib/mock_redis/multi_db_wrapper.rb', line 72

def select(db_index)
  @db_index = db_index.to_i
  'OK'
end