Class: Depository::Collection

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/depository/collection.rb

Class Method Summary collapse

Class Method Details

._model ⇒ Object 



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# File 'lib/depository/collection.rb', line 22

def _model
  self._model_class ||= _model_block.call
end

.convert(attrs) ⇒ Object 



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# File 'lib/depository/collection.rb', line 62

def convert(attrs)
  case attrs
  when Array
    attrs.map(&method(:convert))
  when Hash
    _model.new(attrs)
  else
    raise UnknownConversionType, "unable to convert #{attrs.inspect}"
  end
end

.db ⇒ Object 



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# File 'lib/depository/collection.rb', line 30

def db
  @_db ||= Result.new(Database[_db_name], self)
end

.delete(key) ⇒ Object 



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# File 'lib/depository/collection.rb', line 58

def delete(key)
  db.where(primary_key => key).delete
end

.find(key) ⇒ Object

Raises:



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# File 'lib/depository/collection.rb', line 51

def find(key)
  result = where(primary_key => key).first
  return result if !result.nil?
  raise RecordNotFound,
    "no record found in collection `#{_db_name}' with id `#{key}'"
end

.primary_key ⇒ Object 



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# File 'lib/depository/collection.rb', line 34

def primary_key
  @_primary_key ||= :id
end

.primary_key=(key) ⇒ Object 



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# File 'lib/depository/collection.rb', line 38

def primary_key=(key)
  @_primary_key = key
end

.save(model) ⇒ Object 



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# File 'lib/depository/collection.rb', line 42

def save(model)
  if model.send(primary_key)
    update(model.to_hash)
  else
    model.send(:"#{primary_key}=", insert(model.to_hash))
    return model
  end
end

.use_db(db) ⇒ Object 



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# File 'lib/depository/collection.rb', line 26

def use_db(db)
  db.is_a?(Symbol) ? self._db_name = db : @_db = Result.new(db, self)
end

.use_model(&block) ⇒ Object 



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# File 'lib/depository/collection.rb', line 18

def use_model(&block)
  self._model_block = block
end