class Moneta::Adapters::DataMapper

Datamapper backend @api public

Public Class Methods

new(options = {}) click to toggle source

@param [Hash] options @option options [String] :setup Datamapper setup string @option options [String/Symbol] :repository (:moneta) Repository name @option options [String/Symbol] :table (:moneta) Table name

# File lib/moneta/adapters/datamapper.rb, line 31
def initialize(options = {})
  configure(options)
  Store.storage_names[config.repository] = config.table.to_s
  ::DataMapper.setup(config.repository, config.setup)
  context { Store.auto_upgrade! }
end

Public Instance Methods

clear(options = {}) click to toggle source

(see Proxy#clear)

# File lib/moneta/adapters/datamapper.rb, line 90
def clear(options = {})
  context { Store.all.destroy! }
  self
end
create(key, value, options = {}) click to toggle source

(see Proxy#create)

# File lib/moneta/adapters/datamapper.rb, line 67
def create(key, value, options = {})
  context do
    Store.create(k: key, v: value)
    true
  end
rescue
  # FIXME: This catches too many errors
  # it should only catch a not-unique-exception
  false
end
delete(key, options = {}) click to toggle source

(see Proxy#delete)

# File lib/moneta/adapters/datamapper.rb, line 79
def delete(key, options = {})
  context do
    if record = Store.get(key)
      value = record.v
      record.destroy!
      value
    end
  end
end
key?(key, options = {}) click to toggle source

(see Proxy#key?)

# File lib/moneta/adapters/datamapper.rb, line 39
def key?(key, options = {})
  context { Store.get(key) != nil }
end
load(key, options = {}) click to toggle source

(see Proxy#load)

# File lib/moneta/adapters/datamapper.rb, line 44
def load(key, options = {})
  context do
    record = Store.get(key)
    record && record.v
  end
end
store(key, value, options = {}) click to toggle source

(see Proxy#store)

# File lib/moneta/adapters/datamapper.rb, line 52
def store(key, value, options = {})
  context do
    if record = Store.get(key)
      record.update(k: key, v: value)
    else
      Store.create(k: key, v: value)
    end
    value
  end
rescue
  tries ||= 0
  (tries += 1) < 10 ? retry : raise
end

Private Instance Methods

context() { || ... } click to toggle source
# File lib/moneta/adapters/datamapper.rb, line 97
def context
  ::DataMapper.repository(config.repository) { yield }
end