just some notes about working with scaffolding code

When I modify scaffolding templates I always wonder how to obtain different properties like e.g. the class name or the id of the current instance. A general remark: What confused me most in the beginning was notation like \${${...}}. What you have to know is that \$ is escaped and is therefore what you can normally achieve in GSPs with a $. The unescaped $ within that clause is for the template. When actual code is generated from the template those $ are resolved immediately. You can therefore only use properties that are kown at this stage. Here are a few examples.

\${${className}}

This resolves the long version of the current class name

You often see that properties of an instance are iterated. The variable name of a property is then 'p':

${p.name}

This is the name of the property as it is used in the current instance. You need this value if you want to access that property in a controller (similar to this: domainClassInstance."${params.propertyName}").

${p.referencedDomainClass?.propertyName}

This one gives you the propertyName of the referenced domain class, thus the domain class of the property p. The propertyName is equal to the controller name if you stick to the convention.

${p.referencedDomainClass?.fullName}

Sometimes you need to have the full class name with the whole package notation. This can be useful for domain class instantiation (see my last post).

${p.referencedDomainClass?.shortName}

This is the actual class name omitting the package notation.