Today Propel 1.4 was released and it contains some debugging goodies. We can use the DebugPDO class to get the nifty logging into the Web Debug Panel. However some more interesting information is turned off by default by Propel. It includes:

Time logging
- Time spent for executing this query
Memory logging
- Peak Usage during execution of the query
- Total Memory usage after the query ran
- Memory Delta caused by executing the query
Slow query logging
- Duration after which a query is considered slow

Using this is very easy as of today / symfony 1.3 beta 2:

dev:
  propel:
    param:
      classname: DebugPDO
      debug:
        realmemoryusage: true
        details:
          time:
            enabled: true
          slow:
            enabled: true
            threshold: 0.001
          memdelta:
            enabled: true
          mempeak:
            enabled: true
          method:
            enabled: true
          mem:
            enabled: true
          querycount:
            enabled: true

The whole list can be found in the Propel Documentation. The prefix debugpdo.logging is taken care of by the key debug. Simply put the remaining path below it, creating a new nesting level each dot.

Because Propel takes the order into account, the above configuration results into something like this: