Class: AmazonRelease

Inherits:
Release show all
Defined in:
lib/cluster/infrastructures/amazon_release.rb

Instance Attribute Summary collapse

Attributes inherited from Release

#environment, #label, #tag

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Release

#initialize

Constructor Details

This class inherits a constructor from Release

Instance Attribute Details

#aws_id ⇒ Object

Returns the value of attribute aws_id.



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 2

def aws_id
  @aws_id
end

Class Method Details

.create(*params) ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 40

def create(*params)
  self.new(*params).save
end

.current(environment = 'staging') ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 44

def current(environment = 'staging')
  query_for_release "entry = 'release' AND environment = '#{environment}' AND sdb_created_at IS NOT NULL ORDER BY sdb_created_at DESC limit 1"
end

.find(env, tag) ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 48

def find(env, tag)
  query_for_release "entry = 'release' AND environment = '#{env}' AND tag = '#{tag}'"
end

.query_for_release(clause) ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 52

def query_for_release(clause)
  amazon = Infrastructure.current
  res = amazon.sdb.select("SELECT * FROM #{amazon.domain} WHERE #{clause}")
  args = Amazon.from_sdb_results(res)
  if args.empty?
    nil
  else
    self.new(args.first)
  end
end

Instance Method Details

#amazon ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 16

def amazon
  Infrastructure.current
end

#created_at ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 4

def created_at
  @created_at ||= Time.now
end

#new? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cluster/infrastructures/amazon_release.rb', line 31

def new?
  @new_release
end

#save ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 20

def save
  fields = %w(aws_id label sdb_created_at environment tag)
  args = fields.inject({'entry' => 'release'}) {|m, attr|
    m.merge attr => self.send(attr)
  }
  attributes = Amazon.to_sdb_attributes(args)
  amazon.sdb.put_attributes(amazon.domain, aws_id, attributes, :replace)
  @new_release = true
  self
end

#sdb_created_at ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 8

def sdb_created_at
  created_at.xmlschema(3)
end

#sdb_created_at=(time) ⇒ Object 



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# File 'lib/cluster/infrastructures/amazon_release.rb', line 12

def sdb_created_at=(time)
  self.created_at = Time.parse(time)
end