Class: Bike::Storage::Sequel

Inherits:
Bike::Storage show all
Defined in:
lib/_storage/sequel.rb

Instance Attribute Summary

Attributes inherited from Bike::Storage

#sd

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Bike::Storage

instance, #last, #navi, #order, #persistent?, #select

Constructor Details

#initialize(sd) ⇒ Sequel

Returns a new instance of Sequel.



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# File 'lib/_storage/sequel.rb', line 45

def initialize(sd)
  super
  @dataset = Bike::Storage::Sequel.db[:bike_main]
  @dirname = @sd[:full_name]
end

Class Method Details

.available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/_storage/sequel.rb', line 41

def self.available?
  self.db
end

.db ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 13

def self.db
  if Bike['storage']['Sequel'] && Bike['storage']['Sequel']['uri']
    @db ||= ::Sequel.connect Bike['storage']['Sequel']['uri']
    self.load_skel unless @db.table_exists? :bike_main
  end
  @db
end

.load_skel ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 21

def self.load_skel
  @db.create_table(:bike_main) {
    String :full_name
    String :ext
    String :owner
    String :body
    File   :binary_body
    primary_key :full_name
  } unless @db.table_exists? :bike_main
  Bike::Storage::File.traverse('/', Bike['skin_dir']) {|entry|
    @db[:bike_main].insert(
      :full_name   => entry[:full_name],
      :ext         => entry[:ext],
      :owner       => entry[:val]['_owner'],
      :body        => entry[:val].ya2yaml(:syck_compatible => true),
      :binary_body => (entry[:ext] == 'yaml') ? nil : entry[:val].to_sequel_blob
    ) unless @db[:bike_main][:full_name => entry[:full_name]]
  }
end

Instance Method Details

#build(v) ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 63

def build(v)
  clear
  v.each {|id, v| store(id, v) } if v
  self
end

#clear ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 69

def clear
  @dataset.grep(:full_name, _full_name('%')).delete
  self
end

#delete(id) ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 78

def delete(id)
  @dataset.filter(_conds(id)).delete &&
  @dataset.grep(:full_name, _full_name("#{id}-%")).and(~:ext => 'yaml').delete &&
  id
end

#move(old_id, new_id) ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 84

def move(old_id, new_id)
  rename(old_id, new_id) && new_id
end

#store(id, v, ext = nil) ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 74

def store(id, v, ext = nil)
  save(id, v, ext)
end

#val(id = nil) ⇒ Object 



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# File 'lib/_storage/sequel.rb', line 51

def val(id = nil)
  if id
    load id
  else
    # this could be HUGE.
    _select_all({}).inject({}) {|v, id|
      v[id] = load id
      v
    }
  end
end