Clear schema cache when a table is created/dropped/renamed

Otherwise `Model.table_exists?` returns the staled cache result.

1 files changed, 3 insertions, 0 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index ef33d712ad..aab3e27c14 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -289,6 +289,8 @@ module ActiveRecord
       # Example:
       #   rename_table('octopuses', 'octopi')
       def rename_table(table_name, new_name)
+        schema_cache.clear_data_source_cache!(table_name.to_s)
+        schema_cache.clear_data_source_cache!(new_name.to_s)
         execute "RENAME TABLE #{quote_table_name(table_name)} TO #{quote_table_name(new_name)}"
         rename_table_indexes(table_name, new_name)
       end
@@ -309,6 +311,7 @@ module ActiveRecord
       # it can be helpful to provide these in a migration's +change+ method so it can be reverted.
       # In that case, +options+ and the block will be used by create_table.
       def drop_table(table_name, options = {})
+        schema_cache.clear_data_source_cache!(table_name.to_s)
         execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE#{' IF EXISTS' if options[:if_exists]} #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}"
       end