Namespace
Methods
- C
- D
- E
- N
- S
- U
Attributes
[R] | query_cache | |
[R] | query_cache_enabled |
Class Public methods
dirties_query_cache(base, *method_names) Link
# File activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb, line 17 def dirties_query_cache(base, *method_names) method_names.each do |method_name| base.class_eval <<-end_code, __FILE__, __LINE__ + 1 def #{method_name}(*) ActiveRecord::Base.clear_query_caches_for_current_thread super end end_code end end
new(*) Link
Instance Public methods
cache() Link
Enable the query cache within the block.
clear_query_cache() Link
Clears the query cache.
One reason you may wish to call this method explicitly is between queries that ask the database to randomize results. Otherwise the cache would see the same SQL query and repeatedly return the same result each time, silently undermining the randomness you were expecting.
disable_query_cache!() Link
enable_query_cache!() Link
select_all(arel, name = nil, binds = [], preparable: nil) Link
# File activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb, line 96 def select_all(arel, name = nil, binds = [], preparable: nil) if @query_cache_enabled && !locked?(arel) arel = arel_from_relation(arel) sql, binds, preparable = to_sql_and_binds(arel, binds, preparable) cache_sql(sql, name, binds) { super(sql, name, binds, preparable: preparable) } else super end end