Module: Quandl::Cassandra::Base::Persistence

Extended by:
ActiveSupport::Concern
Defined in:
lib/quandl/cassandra/base/persistence.rb

Defined Under Namespace

Modules: ClassMethods

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#new_record ⇒ Object

Returns the value of attribute new_record.



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# File 'lib/quandl/cassandra/base/persistence.rb', line 30

def new_record
  @new_record
end

Instance Method Details

#delete ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 59

def delete
  return false if new_record?
  self.class.delete(id)
end

#destroy ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 52

def destroy
  return false if new_record?
  run_callbacks :destroy do
    self.class.delete(id)
  end
end

#new_record? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/quandl/cassandra/base/persistence.rb', line 74

def new_record?
  new_record
end

#save ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 36

def save
  return false if self.class.autosave_changes && !primary_key?
  run_callbacks :save do
    touch
    save_changes! if self.class.autosave_changes == true
    cycle_changes!
    self.new_record = false
    true
  end
end

#save! ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 32

def save!
  save
end

#touch ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 47

def touch
  self.created_at = Time.now if respond_to?(:created_at=) && created_at.blank?
  self.updated_at = Time.now if respond_to?(:updated_at=)
end

#update_attributes(values) ⇒ Object 



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# File 'lib/quandl/cassandra/base/persistence.rb', line 64

def update_attributes(values)
  values = self.class.sanitize_attributes(values)
  # add primary key parts to values
  self.class.primary_key.each do |attribute|
    values[attribute.to_s] = sanitized_attribute(attribute) unless values.has_key?(attribute.to_s)
  end
  # update
  self.class.execute("INSERT INTO #{self.class.table_name} (#{values.keys.join(', ')}) VALUES (#{values.values.join(', ')})")
end