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-rw-r--r--activerecord/lib/active_record/tasks/database_tasks.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb
index 6f868b6b7e..1423e6008f 100644
--- a/activerecord/lib/active_record/tasks/database_tasks.rb
+++ b/activerecord/lib/active_record/tasks/database_tasks.rb
@@ -275,6 +275,16 @@ module ActiveRecord
end
end
+ # Dumps the schema cache in YAML format for the connection into the file
+ #
+ # ==== Examples:
+ # ActiveRecord::Tasks::DatabaseTasks.dump_schema_cache(ActiveRecord::Base.connection, "tmp/schema_dump.yaml")
+ def dump_schema_cache(conn, filename)
+ conn.schema_cache.clear!
+ conn.data_sources.each { |table| conn.schema_cache.add(table) }
+ open(filename, "wb") { |f| f.write(YAML.dump(conn.schema_cache)) }
+ end
+
private
def class_for_adapter(adapter)