Module: Picky::Backends::Redis::DirectlyManipulable

Defined in:
lib/picky/backends/redis/directly_manipulable.rb

Constant Summary collapse

@@append_index =

THINK Current implementation is very brittle.

0
@@unshift_index =

THINK Current implementation is very brittle.

0

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#backend ⇒ Object

Returns the value of attribute backend.



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 9

def backend
  @backend
end

#key ⇒ Object

Returns the value of attribute key.



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 9

def key
  @key
end

Class Method Details

.make(backend, list, key) ⇒ Object 



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 11

def self.make backend, list, key
  list.extend DirectlyManipulable
  list.backend = backend
  list.key     = key
end

Instance Method Details

#<<(value) ⇒ Object 



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 20

def << value
  super
  zadd value, @@append_index += 1
end

#delete(value) ⇒ Object

Deletes the value.



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 35

def delete value
  result = super value
  backend.client.zrem "#{backend.namespace}:#{key}", value if result
  result
end

#unshift(value) ⇒ Object 



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 28

def unshift value
  super
  zadd value, @@unshift_index -= 1
end

#zadd(value, index) ⇒ Object

Z-Adds a value with the given index.



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# File 'lib/picky/backends/redis/directly_manipulable.rb', line 43

def zadd value, index
  backend.client.zadd "#{backend.namespace}:#{key}", index, value
  backend[key]
end