This method is deprecated or moved on the latest stable version.
The last existing version (v3.2.13) is shown here.
reset_counters(id, *counters)
public
Resets one or more counter caches to their correct value using an SQL count
query. This is useful when adding new counter caches, or if the counter has
been corrupted or modified directly by SQL.
Parameters
id - The id of the object you wish to reset a counter on.
counters - One or more counter names to reset
Examples
# For Post with id #1 records reset the comments_countPost.reset_counters(1,:comments)
# File activerecord/lib/active_record/counter_cache.rb, line 17
def reset_counters(id, *counters)
object = find(id)
counters.each do |association|
has_many_association = reflect_on_association(association.to_sym)
if has_many_association.options[:as]
has_many_association.options[:as].to_s.classify
else
self.name
end
if has_many_association.is_a? ActiveRecord::Reflection::ThroughReflection
has_many_association = has_many_association.through_reflection
end
foreign_key = has_many_association.foreign_key.to_s
child_class = has_many_association.klass
belongs_to = child_class.reflect_on_all_associations(:belongs_to)
reflection = belongs_to.find { |e| e.foreign_key.to_s == foreign_key && e.options[:counter_cache].present? }
counter_name = reflection.counter_cache_column
stmt = unscoped.where(arel_table[primary_key].eq(object.id)).arel.compile_update({
arel_table[counter_name] => object.send(association).count
})
connection.update stmt
end
return true
end