Class: Aws::Record::ItemData Private

Inherits:
Object
  • Object
show all
Defined in:
lib/aws-record/record/item_data.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model_attributes, opts) ⇒ ItemData

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns a new instance of ItemData.



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# File 'lib/aws-record/record/item_data.rb', line 7

def initialize(model_attributes, opts)
  @data = {}
  @clean_copies = {}
  @dirty_flags = {}
  @model_attributes = model_attributes
  @track_mutations = opts[:track_mutations]
  @track_mutations = true if opts[:track_mutations].nil?
  @new_record = true
  @destroyed = false

  populate_default_values
end

Instance Attribute Details

#destroyed ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 19

def destroyed
  @destroyed
end

#new_record ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 19

def new_record
  @new_record
end

Instance Method Details

#attribute_dirty!(name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 71

def attribute_dirty!(name)
  @dirty_flags[name] = true
end

#attribute_dirty?(name) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/aws-record/record/item_data.rb', line 58

def attribute_dirty?(name)
  if @dirty_flags[name]
    true
  else
    value = get_attribute(name)
    value != @clean_copies[name]
  end
end

#attribute_was(name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 67

def attribute_was(name)
  @clean_copies[name]
end

#build_save_hash ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 98

def build_save_hash
  @data.each_with_object({}) do |name_value_pair, acc|
    attr_name, raw_value = name_value_pair
    attribute = @model_attributes.attribute_for(attr_name)
    if !raw_value.nil? || attribute.persist_nil?
      db_name = attribute.database_name
      acc[db_name] = attribute.serialize(raw_value)
    end
    acc
  end
end

#clean! ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 45

def clean!
  @dirty_flags = {}
  @model_attributes.attributes.each_key do |name|
    populate_default_values
    value = get_attribute(name)
    @clean_copies[name] = if @track_mutations
                            _deep_copy(value)
                          else
                            value
                          end
  end
end

#destroyed? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/aws-record/record/item_data.rb', line 33

def destroyed?
  @destroyed
end

#dirty ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 75

def dirty
  @model_attributes.attributes.keys.each_with_object([]) do |name, acc|
    acc << name if attribute_dirty?(name)
    acc
  end
end

#dirty? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/aws-record/record/item_data.rb', line 82

def dirty?
  !dirty.empty?
end

#get_attribute(name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 21

def get_attribute(name)
  @model_attributes.attribute_for(name).type_cast(@data[name])
end

#hash_copy ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 94

def hash_copy
  @data.dup
end

#new_record? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/aws-record/record/item_data.rb', line 29

def new_record?
  @new_record
end

#persisted? ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns:

  • (Boolean) 


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# File 'lib/aws-record/record/item_data.rb', line 37

def persisted?
  !(new_record? || destroyed?)
end

#populate_default_values ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 110

def populate_default_values
  @model_attributes.attributes.each do |name, attribute|
    next if (default_value = attribute.default_value).nil?
    next unless @data[name].nil?

    @data[name] = default_value
  end
end

#raw_value(name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 41

def raw_value(name)
  @data[name]
end

#rollback_attribute!(name) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 86

def rollback_attribute!(name)
  if attribute_dirty?(name)
    @dirty_flags.delete(name)
    set_attribute(name, attribute_was(name))
  end
  get_attribute(name)
end

#set_attribute(name, value) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws-record/record/item_data.rb', line 25

def set_attribute(name, value)
  @data[name] = value
end