Class: DatabaseValidations::BelongsToOptions

Inherits:
Object
  • Object
show all
Defined in:
lib/database_validations/validations/belongs_to_options.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(column, relation, adapter) ⇒ BelongsToOptions

Returns a new instance of BelongsToOptions.



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 5

def initialize(column, relation, adapter)
  @column = column
  @relation = relation
  @adapter = adapter

  raise_if_unsupported_database!
  raise_if_foreign_key_missed! unless ENV['SKIP_DB_UNIQUENESS_VALIDATOR_INDEX_CHECK']
end

Instance Attribute Details

#adapter ⇒ Object (readonly)

Returns the value of attribute adapter.



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 3

def adapter
  @adapter
end

#column ⇒ Object (readonly)

Returns the value of attribute column.



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 3

def column
  @column
end

#relation ⇒ Object (readonly)

Returns the value of attribute relation.



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 3

def relation
  @relation
end

Instance Method Details

#column_and_relation_blank_for?(instance) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/database_validations/validations/belongs_to_options.rb', line 20

def column_and_relation_blank_for?(instance)
  instance.public_send(column).blank? && instance.public_send(relation).blank?
end

#handle_foreign_key_error(instance) ⇒ Object 



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 24

def handle_foreign_key_error(instance)
  # Hack to not query the database because we know the result already
  instance.send("#{relation}=", nil)
  instance.errors.add(relation, :blank, message: :required)
end

#key ⇒ String

Returns:

  • (String) 


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# File 'lib/database_validations/validations/belongs_to_options.rb', line 15

def key
  Helpers.generate_key_for_belongs_to(column)
end

#validates_presence_options ⇒ Object 



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# File 'lib/database_validations/validations/belongs_to_options.rb', line 30

def validates_presence_options
  { attributes: relation, message: :required }
end