Diffstat (limited to 'vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb deleted file mode 100644 index e6b8e3a..0000000 --- a/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/dev/null @@ -1,87 +0,0 @@ -module ActiveRecord - module ConnectionAdapters # :nodoc: - module QueryCache - class << self - def included(base) - base.class_eval do - attr_accessor :query_cache_enabled - alias_method_chain :columns, :query_cache - alias_method_chain :select_all, :query_cache - end - - dirties_query_cache base, :insert, :update, :delete - end - - def dirties_query_cache(base, *method_names) - method_names.each do |method_name| - base.class_eval <<-end_code, __FILE__, __LINE__ - def #{method_name}_with_query_dirty(*args) - clear_query_cache if @query_cache_enabled - #{method_name}_without_query_dirty(*args) - end - - alias_method_chain :#{method_name}, :query_dirty - end_code - end - end - end - - # Enable the query cache within the block. - def cache - old, @query_cache_enabled = @query_cache_enabled, true - @query_cache ||= {} - yield - ensure - clear_query_cache - @query_cache_enabled = old - end - - # Disable the query cache within the block. - def uncached - old, @query_cache_enabled = @query_cache_enabled, false - yield - ensure - @query_cache_enabled = old - end - - def clear_query_cache - @query_cache.clear if @query_cache - end - - def select_all_with_query_cache(*args) - if @query_cache_enabled - cache_sql(args.first) { select_all_without_query_cache(*args) } - else - select_all_without_query_cache(*args) - end - end - - def columns_with_query_cache(*args) - if @query_cache_enabled - @query_cache["SHOW FIELDS FROM #{args.first}"] ||= columns_without_query_cache(*args) - else - columns_without_query_cache(*args) - end - end - - private - def cache_sql(sql) - result = - if @query_cache.has_key?(sql) - log_info(sql, "CACHE", 0.0) - @query_cache[sql] - else - @query_cache[sql] = yield - end - - if Array === result - result.collect { |row| row.dup } - else - result.duplicable? ? result.dup : result - end - rescue TypeError - result - end - end - end -end |