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 19

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

#destroyedObject

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 32

def destroyed
  @destroyed
end

#new_recordObject

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 32

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 84

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 71

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 80

def attribute_was(name)
  @clean_copies[name]
end

#build_save_hashObject

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 111

def build_save_hash
  @data.inject({}) do |acc, name_value_pair|
    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 58

def clean!
  @dirty_flags = {}
  @model_attributes.attributes.each_key do |name|
    populate_default_values
    value = get_attribute(name)
    if @track_mutations
      @clean_copies[name] = _deep_copy(value)
    else
      @clean_copies[name] = 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 46

def destroyed?
  @destroyed
end

#dirtyObject

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 88

def dirty
  @model_attributes.attributes.keys.inject([]) do |acc, name|
    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 95

def dirty?
  dirty.empty? ? false : true
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 34

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

#hash_copyObject

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 107

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 42

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 50

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

#populate_default_valuesObject

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 123

def populate_default_values
  @model_attributes.attributes.each do |name, attribute|
    unless attribute.default_value.nil?
      if @data[name].nil? && @data[name].nil?
        @data[name] = attribute.default_value
      end
    end
  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 54

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 99

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 38

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