method
delete
v3.2.13 -
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Class: ActiveRecord::Relation
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- What's this?
delete(id_or_array)
public
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])