Module: MongoStore::Cache::Rails2

Defined in:
lib/active_support/cache/mongo_store.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



7
8
9
 
# File 'lib/active_support/cache/mongo_store.rb', line 7

def options
  @options
end

Instance Method Details

#delete(key, local_options = nil) ⇒ Object

Takes the specified value out of the collection.



29
30
31
32
33
 
# File 'lib/active_support/cache/mongo_store.rb', line 29

def delete(key, local_options=nil)
  super
  opts = local_options ? options.merge(local_options) : options
  collection.remove({'_id' => namespaced_key(key,opts)})
end

#delete_matched(key, local_options = nil) ⇒ Object

Takes the value matching the pattern out of the collection.



37
38
39
40
41
 
# File 'lib/active_support/cache/mongo_store.rb', line 37

def delete_matched(key, local_options=nil)
  super
  opts = local_options ? options.merge(local_options) : options
  collection.remove({'_id' => key_matcher(key,opts)})
end

#read(key, local_options = nil) ⇒ Object

Reads the value from the cache collection.



20
21
22
23
24
25
26
 
# File 'lib/active_support/cache/mongo_store.rb', line 20

def read(key, local_options=nil)
  super
  opts = local_options ? options.merge(local_options) : options
  if doc = collection.find_one('_id' => namespaced_key(key, opts), 'expires' => {'$gt' => Time.now})
    doc['value']
  end
end

#write(key, value, local_options = nil) ⇒ Object

Inserts the value into the cache collection or updates the existing value. The value must be a valid MongoDB type. An :expires_in option may be provided, as with MemCacheStore. If one is not provided, a default expiration of 1 day is used.



12
13
14
15
16
17
 
# File 'lib/active_support/cache/mongo_store.rb', line 12

def write(key, value, local_options=nil)
  super
  opts = local_options ? options.merge(local_options) : options
  expires = Time.now + opts[:expires_in]
  collection.update({'_id' => namespaced_key(key, opts)}, {'$set' => {'value' => value, 'expires' => expires}}, :upsert => true)
end