Class: Ozy
- Inherits:
-
Hash
show all
- Defined in:
- lib/ozy.rb
Defined Under Namespace
Classes: KeyError
Class Method Summary
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Instance Method Summary
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Constructor Details
#initialize(attributes = {}, options = {}) ⇒ Ozy
Returns a new instance of Ozy.
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# File 'lib/ozy.rb', line 73
def initialize(attributes = {}, options = {})
@options = options
if @options[:key]
@persisted = true
end
merge! attributes unless attributes.empty?
end
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Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(method, *args) ⇒ Object
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# File 'lib/ozy.rb', line 115
def method_missing(method, *args)
if @options[:key] && self.class.connection.respond_to?(method)
self.class.connection.send(method, *[@options[:key], args].flatten)
else
method = method.to_s
if method.chomp!('=')
self[method] = args.first
elsif args.empty?
self[method.to_s] || self[method.to_sym]
else
super
end
end
end
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Class Method Details
.connect(*args) ⇒ Object
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# File 'lib/ozy.rb', line 8
def connect(*args)
self.connection = Redis.new(*args)
end
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.connection ⇒ Object
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# File 'lib/ozy.rb', line 12
def connection
@connection ||= ::Redis.new
end
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.connection=(new_connection) ⇒ Object
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# File 'lib/ozy.rb', line 16
def connection=(new_connection)
@connection = new_connection
end
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.create(key, attributes = {}, options = {}) ⇒ Object
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# File 'lib/ozy.rb', line 20
def create(key, attributes = {}, options = {})
instance = new(attributes, options.merge(:key => key))
instance.save
instance
end
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.destroy(key) ⇒ Object
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# File 'lib/ozy.rb', line 26
def destroy(key)
connection.del(key)
end
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.get(key) ⇒ Object
Also known as:
find
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# File 'lib/ozy.rb', line 30
def get(key)
if response = connection.get(key)
new(Marshal.load(response), :key => key)
end
end
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Instance Method Details
#[]=(key, value) ⇒ Object
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# File 'lib/ozy.rb', line 38
def []=(key, value)
super
update_parent
end
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#delete(value) ⇒ Object
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# File 'lib/ozy.rb', line 47
def delete(value)
super
update_parent
end
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#destroy ⇒ Object
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# File 'lib/ozy.rb', line 43
def destroy
self.class.destroy(@options[:key])
end
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#expire_in!(time) ⇒ Object
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# File 'lib/ozy.rb', line 52
def expire_in!(time)
if persisted?
save(@options[:key], :expire => time)
else
@options[:expire] = time
end
end
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#expires_in ⇒ Object
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# File 'lib/ozy.rb', line 60
def expires_in
persisted? ? ttl : @options[:expire]
end
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#id ⇒ Object
Also known as:
key
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# File 'lib/ozy.rb', line 64
def id
if persisted?
@options[:key]
else
nil
end
end
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#inspect ⇒ Object
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# File 'lib/ozy.rb', line 81
def inspect
if persisted?
"#{@options[:key]}: #{super}"
else
super
end
end
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#merge!(*args) ⇒ Object
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# File 'lib/ozy.rb', line 89
def merge!(*args)
super
update_parent
end
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#persisted? ⇒ Boolean
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# File 'lib/ozy.rb', line 94
def persisted?
!!@persisted
end
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#save(key = nil, options = {}) ⇒ Object
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# File 'lib/ozy.rb', line 98
def save(key = nil, options = {})
raise KeyError.new("You must supply a key to save a Redis-backed hash!") unless key ||= @options[:key]
options = @options.merge(options)
if options[:expire]
self.class.connection.setex(key, options[:expire], Marshal.dump(to_hash))
else
self.class.connection.set(key, Marshal.dump(to_hash))
end
@options[:key] = key
@persisted = true
end
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#to_hash ⇒ Object
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# File 'lib/ozy.rb', line 110
def to_hash
Hash[self]
end
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