Class: MigrationService

Inherits:
Object
  • Object
show all
Defined in:
app/services/migration_service.rb

Defined Under Namespace

Classes: ArchiveValidationFailed, MigrationAlreadyExists, SelfMigrationNotAllowed

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(archive_path, new_user_name, opts = {}) ⇒ MigrationService

Returns a new instance of MigrationService.



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# File 'app/services/migration_service.rb', line 8

def initialize(archive_path, new_user_name, opts={})
  @archive_path = archive_path
  @new_user_name = new_user_name
  @opts = opts
end

Instance Attribute Details

#archive_path ⇒ Object (readonly)

Returns the value of attribute archive_path.



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# File 'app/services/migration_service.rb', line 4

def archive_path
  @archive_path
end

#new_user_name ⇒ Object (readonly)

Returns the value of attribute new_user_name.



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# File 'app/services/migration_service.rb', line 4

def new_user_name
  @new_user_name
end

#opts ⇒ Object (readonly)

Returns the value of attribute opts.



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# File 'app/services/migration_service.rb', line 4

def opts
  @opts
end

Instance Method Details

#only_import? ⇒ Boolean

when old person can't be resolved we still import data but we don't create&perform AccountMigration instance

Returns:

  • (Boolean) 


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# File 'app/services/migration_service.rb', line 38

def only_import?
  old_person.nil?
end

#perform! ⇒ Object 



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# File 'app/services/migration_service.rb', line 23

def perform!
  find_or_create_user
  import_archive
  run_migration
ensure
  remove_intermediate_file
end

#self_import? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/services/migration_service.rb', line 31

def self_import?
  source_diaspora_id = archive_validator.archive_author_diaspora_id
  target_diaspora_id = "#{new_user_name}#{User.diaspora_id_host}"
  source_diaspora_id == target_diaspora_id
end

#validate ⇒ Object

Raises:



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# File 'app/services/migration_service.rb', line 14

def validate
  return unless archive_file_exists?

  archive_validator.validate
  raise ArchiveValidationFailed, errors.join("\n") if errors.any?
  raise MigrationAlreadyExists if AccountMigration.where(old_person: old_person).any?
  raise SelfMigrationNotAllowed if self_import?
end