diff options
Diffstat (limited to 'activerecord/lib/active_record/explain.rb')
| -rw-r--r-- | activerecord/lib/active_record/explain.rb | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/activerecord/lib/active_record/explain.rb b/activerecord/lib/active_record/explain.rb index 15736575a2..e65dab07ba 100644 --- a/activerecord/lib/active_record/explain.rb +++ b/activerecord/lib/active_record/explain.rb @@ -1,22 +1,22 @@ require 'active_support/lazy_load_hooks' +require 'active_record/explain_registry' module ActiveRecord module Explain - # Relation#explain needs to be able to collect the queries. + # Executes the block with the collect flag enabled. Queries are collected + # asynchronously by the subscriber and returned. def collecting_queries_for_explain # :nodoc: - current = Thread.current - original, current[:available_queries_for_explain] = current[:available_queries_for_explain], [] + ExplainRegistry.collect = true yield - return current[:available_queries_for_explain] + ExplainRegistry.queries ensure - # Note that the return value above does not depend on this assignment. - current[:available_queries_for_explain] = original + ExplainRegistry.reset end # Makes the adapter execute EXPLAIN for the tuples of queries and bindings. # Returns a formatted string ready to be logged. def exec_explain(queries) # :nodoc: - str = queries && queries.map do |sql, bind| + str = queries.map do |sql, bind| [].tap do |msg| msg << "EXPLAIN for: #{sql}" unless bind.empty? @@ -31,6 +31,7 @@ module ActiveRecord def str.inspect self end + str end end |