Optional blocks depending on a component is installed or not

Some reports includes data from other components. This is traditionally done by introducing dynamic SQL and/or PL/SQL. But, a better solution is to let the compiler figure out what parts to include in the code or not. In the model you simply say that a particular block required that a specified component is installed.

The following example shows a movie toplist report that has a block that depends on an optional component:

block Scene requires FILMDB {
   attributes {
      attribute SceneIndex  Integer;
      attribute Duration    Number;
      attribute Content     Text(2000);
   }
   entities {
   }
}

The model supports that concept for the generated RDF file by adding compiler directives at the right places. When a new component is installed, that part of the code is automatically activated and the report includes the new data.

This page is generated from IFS Developer Studio at 2021-08-13 08:48.