Module: SimpleMapper::Persistence

Defined in:
lib/simple_mapper/persistence.rb

Defined Under Namespace

Modules: ClassMethods

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#identifier ⇒ Object (readonly)

Returns the value of attribute identifier.



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# File 'lib/simple_mapper/persistence.rb', line 159

def identifier
  @identifier
end

#original_attributes ⇒ Object (readonly)

Returns the value of attribute original_attributes.



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# File 'lib/simple_mapper/persistence.rb', line 166

def original_attributes
  @original_attributes
end

#original_data ⇒ Object

Returns the value of attribute original_data.



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# File 'lib/simple_mapper/persistence.rb', line 165

def original_data
  @original_data
end

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/simple_mapper/persistence.rb', line 8

def self.included(klass)
  klass.extend ClassMethods
  require File.expand_path(File.dirname(__FILE__) + '/plugin_support')
  klass.send(:include, SimpleMapper::PluginSupport)
end

.prepare_for_inheritance(klass) ⇒ Object

TODO: Write in inheritability for models. Should this instead be a place that plugins can plug in a callback?



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# File 'lib/simple_mapper/persistence.rb', line 5

def self.prepare_for_inheritance(klass)
end

Instance Method Details

#delete ⇒ Object

delete



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# File 'lib/simple_mapper/persistence.rb', line 201

def delete
  if self.class.connection(@adapter || :default).delete(identifier)
    @persisted = false
    instance_variable_set('@'+self.class.identifier, nil)
    true
  else
    false
  end
end

#dirty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/simple_mapper/persistence.rb', line 174

def dirty?
  data != original_data
end

#formatted_data ⇒ Object

Reads the data from the object for saving back to the persisted store. This is provided as a default method, but you can overwrite it in your model.



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# File 'lib/simple_mapper/persistence.rb', line 170

def formatted_data
  send("to_#{self.class.format_name}".to_sym)
end

#initialize(data = nil) ⇒ Object 



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# File 'lib/simple_mapper/persistence.rb', line 156

def initialize(data=nil)
  self.data = data unless data.nil?
end

#persisted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/simple_mapper/persistence.rb', line 211

def persisted?
  !!@persisted && !self.class.identifier.nil? && !self.send(self.class.identifier).nil?
end

#post(*args) ⇒ Object

sends a post request with self.data



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# File 'lib/simple_mapper/persistence.rb', line 192

def post(*args)
  new_rec = self.class.extract_one(self.class.connection(@adapter || :default).post(formatted_data, *args))
  raise "Request did not return an object" if new_rec.nil?
  self.data = new_rec.to_hash
  @persisted = true
  self
end

#put(*args) ⇒ Object

sends a put request with self.data



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# File 'lib/simple_mapper/persistence.rb', line 184

def put(*args)
  new_rec = self.class.extract_one(self.class.connection(@adapter || :default).put(identifier, formatted_data, *args), identifier)
  raise "Request did not return an object" if new_rec.nil?
  self.data = new_rec.to_hash
  self
end

#save ⇒ Object

persisted? ? put : post



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# File 'lib/simple_mapper/persistence.rb', line 179

def save
  persisted? ? put : post
end