CODEWITHSUNDEEP
grailsurl-rewritingseo
Dónal
Dónal

Reputation: 187529

Grails URL mappings

In my Grails app I have a couple of domain classes, say Author and Book. I'm using the default URL mappings:

static mappings = {
  "/$controller/$action?/$id?"{
    constraints {
      // apply constraints here
    }
  }
}

So the relative URL to show the book with id 2 is /book/show/2 or for the author with id 5 it's /author/show/5. Both the Author and Book classes have a unique name property.

I would prefer the URLs to show an author or book use the name rather than the database ID to identify the book/author, e.g. /author/show/shakespeare and /book/show/ulysses. Is this achievable without changing the domain classes such that the name field is the id (primary key)?

Upvotes: 1

Views: 466

Answers (1)

Rob Hruska
Rob Hruska

Reputation: 120286

You could just pass strings (e.g. "shakespeare") as params.id and then instead of doing a:

Author.get(params.id)

in your controller method, do:

Author.findByName(params.id)

As far as I know, the id parameter (when used with URLs) doesn't have to be a long.

Upvotes: 2

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