Question

I have two tables that exist in the same Oracle database system but different schemas, which I’ve mapped like this:

ABC.Store:
component schema="ABC" table="Stores"
{
    property name="Id" fieldtype="id" generator="sequence" sequence="store_id_seq";
    property name="Products" fieldtype="one-to-many" cfc="Product";
}

DEF.Product:
component schema="DEF" table="Products"
{
    property name="Id" fieldtype="id" generator="sequence" sequence="product_id_seq";
}

I set my application’s default datasource as this.datasource = "ABC" in application.cfc.

The problem I’m running into here is whenever I try to save a Product. ColdFusion spits out an error that says the sequence cannot be found for the Id property on Product. This is because the product_id_seq sequence is in the DEF schema, but ColdFusion is trying to find it in the ABC schema, even though I set the schema on the Product as DEF.

If I set the datasource attribute on Product to DEF, I then get an error that says the Products property on Store is unmapped. This is because, as the ColdFusion documentation states:

“Since a Hibernate configuration uses a single data source, all related CFCs (using ORM relationships) must have the same data source.”

My question then is, how do I map the two tables in two different schemas, using a sequence as an ID generator?

I’ve been able to get it to work if I specify the schema for the sequence:

property name="Id" fieldtype="id" generator="sequence" sequence="def.product_id_seq";

But this is hard-coded and I’d like it to be dynamic and pull the schema name from a configuration bean.

Answer 1

The only way I’ve been able to get this to work seamlessly was to:

1. Create a single user in database, in this case MySQL, that had access to the desired schemas.
2. Setup and configure a single datasource in CFIDE that utilizes the newly created user for authentication.
3. Set the datasource attribute in all desired persistent objects to the newly created datasource.
4. Set the schema attribute in all desired persistent objects to reference the correct schema, or database. (the two are synonymous in ColdFusion ORM)

Note: Be sure to use full component path when referencing CFCs in your COM.