self.delete(id) — ActiveRecord::Base

self.delete(id)

Deletes the row with a primary key matching the id argument, using a SQL DELETE statement, and returns the number of rows deleted. Active Record objects are not instantiated, so the object’s callbacks are not executed, including any :dependent association options or Observer methods.

You can delete multiple rows at once by passing an Array of ids.

Note: Although it is often much faster than the alternative, #destroy, skipping callbacks might bypass business logic in your application that ensures referential integrity or performs other essential jobs.

Examples

# Delete a single row
Todo.delete(1)

# Delete multiple rows
Todo.delete([2,3,4])

Parameters

id req

Source

# File activerecord/lib/active_record/base.rb, line 779
      def delete(id)
        delete_all([ "#{connection.quote_column_name(primary_key)} IN (?)", id ])
      end

Defined in activerecord/lib/active_record/base.rb line 779 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Base

Signature

Examples

Parameters