Class: InventoryRefresh::InventoryObject

Inherits:
Object
  • Object
show all
Defined in:
lib/inventory_refresh/inventory_object.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(inventory_collection, data) ⇒ InventoryObject 



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# File 'lib/inventory_refresh/inventory_object.rb', line 15

def initialize(inventory_collection, data)
  @inventory_collection     = inventory_collection
  @data                     = data
  @object                   = nil
  @id                       = nil
  @reference                = inventory_collection.build_reference(data)
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/inventory_refresh/inventory_object.rb', line 7

def data
  @data
end

#id ⇒ Object

Returns the value of attribute id.



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# File 'lib/inventory_refresh/inventory_object.rb', line 6

def id
  @id
end

#inventory_collection ⇒ Object (readonly)

Returns the value of attribute inventory_collection.



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# File 'lib/inventory_refresh/inventory_object.rb', line 7

def inventory_collection
  @inventory_collection
end

#object ⇒ Object

Returns the value of attribute object.



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# File 'lib/inventory_refresh/inventory_object.rb', line 6

def object
  @object
end

#reference ⇒ Object (readonly)

Returns the value of attribute reference.



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# File 'lib/inventory_refresh/inventory_object.rb', line 7

def reference
  @reference
end

Class Method Details

.add_attributes(inventory_object_attributes) ⇒ Object

Adds setters and getters based on :inventory_object_attributes kwarg passed into InventoryCollection Methods already defined should not be redefined (causes unexpected behaviour)



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# File 'lib/inventory_refresh/inventory_object.rb', line 185

def self.add_attributes(inventory_object_attributes)
  defined_methods = InventoryRefresh::InventoryObject.instance_methods(false)

  inventory_object_attributes.each do |attr|
    unless defined_methods.include?("#{attr}=".to_sym)
      define_method("#{attr}=") do |value|
        data[attr] = value
      end
    end

    unless defined_methods.include?(attr.to_sym)
      define_method(attr) do
        data[attr]
      end
    end
  end
end

Instance Method Details

#assign_attributes(attributes) ⇒ InventoryRefresh::InventoryObject

Given hash of attributes, we assign them to InventoryObject object using its public writers



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# File 'lib/inventory_refresh/inventory_object.rb', line 142

def assign_attributes(attributes)
  attributes.each do |k, v|
    # We don't want timestamps or resource versions to be overwritten here, since those are driving the conditions
    next if i(resource_timestamps resource_timestamps_max resource_timestamp).include?(k)
    next if i(resource_versions resource_versions_max resource_version).include?(k)

    if data[:resource_timestamp] && attributes[:resource_timestamp]
      assign_only_newest(:resource_timestamp, :resource_timestamps, attributes, data, k, v)
    elsif data[:resource_version] && attributes[:resource_version]
      assign_only_newest(:resource_version, :resource_versions, attributes, data, k, v)
    else
      public_send("#{k}=", v)
    end
  end

  if attributes[:resource_timestamp]
    assign_full_row_version_attr(:resource_timestamp, attributes, data)
  elsif attributes[:resource_version]
    assign_full_row_version_attr(:resource_version, attributes, data)
  end

  self
end

#attributes(inventory_collection_scope = nil) ⇒ Hash

Transforms InventoryObject object data into hash format with keys that are column names and resolves correct values of the foreign keys (even the polymorphic ones)



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# File 'lib/inventory_refresh/inventory_object.rb', line 42

def attributes(inventory_collection_scope = nil)
  # We should explicitly pass a scope, since the inventory_object can be mapped to more InventoryCollections with
  # different blacklist and whitelist. The generic code always passes a scope.
  inventory_collection_scope ||= inventory_collection

  attributes_for_saving = {}
  # First transform the values
  data.each do |key, value|
    if !allowed?(inventory_collection_scope, key)
      next
    elsif value.kind_of?(Array) && value.any? { |x| loadable?(x) }
      # Lets fill also the original data, so other InventoryObject referring to this attribute gets the right
      # result
      data[key] = value.compact.map(&:load).compact
      # We can use built in _ids methods to assign array of ids into has_many relations. So e.g. the :key_pairs=
      # relation setter will become :key_pair_ids=
      attributes_for_saving[(key.to_s.singularize + "_ids").to_sym] = data[key].map(&:id).compact.uniq
    elsif loadable?(value) || inventory_collection_scope.association_to_foreign_key_mapping[key]
      # Lets fill also the original data, so other InventoryObject referring to this attribute gets the right
      # result
      data[key] = value.load if value.respond_to?(:load)
      if (foreign_key = inventory_collection_scope.association_to_foreign_key_mapping[key])
        # We have an association to fill, lets fill also the :key, cause some other InventoryObject can refer to it
        record_id                                 = data[key].try(:id)
        attributes_for_saving[foreign_key.to_sym] = record_id

        if (foreign_type = inventory_collection_scope.association_to_foreign_type_mapping[key])
          # If we have a polymorphic association, we need to also fill a base class name, but we want to nullify it
          # if record_id is missing
          base_class = data[key].try(:base_class_name) || data[key].class.try(:base_class).try(:name)
          attributes_for_saving[foreign_type.to_sym] = record_id ? base_class : nil
        end
      elsif data[key].kind_of?(::InventoryRefresh::InventoryObject)
        # We have an association to fill but not an Activerecord association, so e.g. Ancestry, lets just load
        # it here. This way of storing ancestry is ineffective in DB call count, but RAM friendly
        attributes_for_saving[key.to_sym] = data[key].base_class_name.constantize.find_by(:id => data[key].id)
      else
        # We have a normal attribute to fill
        attributes_for_saving[key.to_sym] = data[key]
      end
    else
      attributes_for_saving[key.to_sym] = value
    end
  end

  attributes_for_saving
end

#attributes_with_keys(inventory_collection_scope = nil, all_attribute_keys = []) ⇒ Hash

Transforms InventoryObject object data into hash format with keys that are column names and resolves correct values of the foreign keys (even the polymorphic ones)



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# File 'lib/inventory_refresh/inventory_object.rb', line 96

def attributes_with_keys(inventory_collection_scope = nil, all_attribute_keys = [])
  # We should explicitly pass a scope, since the inventory_object can be mapped to more InventoryCollections with
  # different blacklist and whitelist. The generic code always passes a scope.
  inventory_collection_scope ||= inventory_collection

  attributes_for_saving = {}
  # First transform the values
  data.each do |key, value|
    if !allowed?(inventory_collection_scope, key)
      next
    elsif loadable?(value) || inventory_collection_scope.association_to_foreign_key_mapping[key]
      # Lets fill also the original data, so other InventoryObject referring to this attribute gets the right
      # result
      data[key] = value.load if value.respond_to?(:load)
      if (foreign_key = inventory_collection_scope.association_to_foreign_key_mapping[key])
        # We have an association to fill, lets fill also the :key, cause some other InventoryObject can refer to it
        record_id = data[key].try(:id)
        foreign_key_to_sym = foreign_key.to_sym
        attributes_for_saving[foreign_key_to_sym] = record_id
        all_attribute_keys << foreign_key_to_sym
        if (foreign_type = inventory_collection_scope.association_to_foreign_type_mapping[key])
          # If we have a polymorphic association, we need to also fill a base class name, but we want to nullify it
          # if record_id is missing
          base_class = data[key].try(:base_class_name) || data[key].class.try(:base_class).try(:name)
          foreign_type_to_sym = foreign_type.to_sym
          attributes_for_saving[foreign_type_to_sym] = record_id ? base_class : nil
          all_attribute_keys << foreign_type_to_sym
        end
      else
        # We have a normal attribute to fill
        attributes_for_saving[key] = data[key]
        all_attribute_keys << key
      end
    else
      attributes_for_saving[key] = value
      all_attribute_keys << key
    end
  end

  attributes_for_saving
end

#dependency? ⇒ TrueClass 



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# File 'lib/inventory_refresh/inventory_object.rb', line 177

def dependency?
  true
end

#inspect ⇒ String 



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# File 'lib/inventory_refresh/inventory_object.rb', line 172

def inspect
  "InventoryObject:('#{manager_uuid}', #{inventory_collection})"
end

#key ⇒ Object 



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# File 'lib/inventory_refresh/inventory_object.rb', line 33

def key
  nil
end

#load ⇒ InventoryRefresh::InventoryObject 



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# File 'lib/inventory_refresh/inventory_object.rb', line 29

def load
  self
end

#manager_uuid ⇒ String 



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# File 'lib/inventory_refresh/inventory_object.rb', line 24

def manager_uuid
  reference.stringified_reference
end

#to_s ⇒ String 



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# File 'lib/inventory_refresh/inventory_object.rb', line 167

def to_s
  manager_uuid
end