Play Framework 2.0 and Ebean SQL logging

Question

I want to examine what SQL statements are generated by Ebean to find out why certain exceptions (related to SQL syntax) are occurring in my Play 2.0 application. Is there a way to log the SQL statements generated by Ebean in Play Framework 2.0?

In Play 1.x, there is a jpa.debugSQL config option, which if set to true, will do exactly this. Does a similar setting for Ebean exist for Play 2.0? The documentation page about Ebean of Play 2.0 is still a bit scarce.

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What I have tried so far:

I have added these method calls in my controllers and the onStart / onRequest methods of the Global object, but it doesn't have any effect:

Ebean.getServer(null).getAdminLogging().setLogLevel(LogLevel.SQL);
Ebean.getServer(null).getAdminLogging().setDebugGeneratedSql(Play.isDev());

I have modified the log levels from application.conf, but it didn't help either (even with log level TRACE).

Heiskell

Answer 1

Sorry to be late to the party, but I use this in development:

db.default.logStatements=true

logger.com.jolbox=DEBUG

Add those two lines to the application.conf and you are good to go.

It outputs all the sql statements. Hope it helps.

Sole

Answer 2

You can enable SQL logging by using the following statement

Ebean.getServer(null).getAdminLogging().setDebugGeneratedSql(true);

Use this command in the onRequest interceptor for example

In a next release, you will certainly be able to configure this in the file ebean.properties.

// Tips : use Play.isDev() to log only in dev mode

Hairpin

Thanks. I tried your suggestion (I added the above statement to both onStart and onRequest methods in my Global object), but I still do not see any SQL statements in my application's logs. – Heiskell

I haven't try in Play2.0 final,i will retry soon (RC3 last test). Try to change Log level in the application.conf or in the AdminLogging instance. Do you use "default" as database source ? – Hairpin

Yes, "default" datasource. Tried setting the log level in application.conf and AdminLogging instance. A lot of other stuff appear in the logs, but alas, no SQL statements, even with log level TRACE. – Heiskell

2 questions : try by adding this line directry in your controller, and if it works, are you sure your Global object is well defined ? (there is a config to set if the global object is not in the root package, symply add a Sysout to see whether it works). I tried with Play 2.0 final yesterday and it works. – Hairpin

The Global object is ok. I have Logger.info() calls in both onStart and onRequest methods and I can see their output in the console. Even so, I still added it in the controller as well - no effect. So, the Ebean methods must get called, but for some reason, do not work. – Heiskell

it's weird, i can't help more. – Hairpin

Answer 3

Also you can get SQL on the spot by using method getGeneratedSQL. Code sample below

        Query<PreventionActivity> where = find.where(
            and(
                    and(
                    ge("Age_FROM", age)
                    , or(le("Age_TO", age), eq("Age_TO", 0))
                    )
                    , or(eq("Gender_CD", genderCd), eq("Gender_CD", "*"))
            )
    );

    List<PreventionActivity> list = where.findList();
    Logger.info("sql ");
    Logger.info(where.getGeneratedSql());

Apophasis