Coldbox and VueJS untangled

Tag: coldbox

Cborm event handling: tracking some Lucee problems.

In my previous post on logging database changes with Logbox I wanted to show how to log database changes with interceptors in a cborm system. This should be quite simular to the quick example from the previous post. It just needs an extra step, you have to configure this in Application.cfc:

//configure this mapping here, your ormSetting need it
this.mappings[ "/cborm" ] = COLDBOX_APP_ROOT_PATH & "/modules/cborm";
this.ormSettings = {
    // ...... (other orm settings)
    // Enable event handling
    eventhandling = true,
    // Set the event handler to use, which will be inside our application.
    eventhandler = "cborm.models.EventHandler"
};

The cborm.models.EventHandler will act as a bridge between the coldfusion ORM event handling and the interceptor system in coldbox. Orm settings are configured in Application.cfc even before coldbox is loaded. I’ve been using this for many years in older application and it always worked like a charm. For my series of blogposts on Logbox I created up a new coldbox application, configured the ORM settings as I have done for many years, and fired up some recent Lucee version. It failed.

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Inserting NULL values in qb

I can highly recommend the qb library for all kind of database manipulations, for querying and data definitions. Qb hides a lot of complexities for database actions, and abstracts away differences between database engines.

Although very powerful, some options are really well hidden in the documentation or the source code. Recently I wanted to update a database table with null values. The normal syntax for updating values in a database table is:

query.from( "users" )
    .update( {
        "email" = "foo",
        "name" = "bar"
    } );

If you have more complex requirements like inserting date values in the correct formats, you can specify query param options, e.g

query.from( "users" )
    .update( {
        "email" = "foo",
        "name" = "bar",
        "updatedDate" = { value = now(), cfsqltype = "CF_SQL_TIMESTAMP" }
    } );

This query param syntax comes in handy when inserting NULL values. As we all know older versions of Adobe Coldfusion and Lucee can’t handle null values very well:

query.from("user")
		.whereId( 10 )
		.update( {
			manager_FK = { value = "", null=true },
		} )

If you are using Lucee with full Null support you can leave out the null parameter, e.g

query.from("user")
		.whereId( 10 )
		.update( {
			manager_FK = { value = null },
		} )

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