Grails findAllBy Method

Home with a sick kid today, figured I could cobble together a video and a blog post. I am writing this one-handed, with a sick kid on my lap, watching PJ Masks, truly a great day. See video for a demo of the findAllBy method. You can use this method to create a pared down list, params.id is passed from URL. Kind of a cool method you may end up using on the reg.

GGTS 3.6.4 and Grails 2.4.4

Walk thru: 

1. Start by creating a new project named lameProj
2. Then create a domain class FavColor.groovy

package lameproj

class FavColor {

     String name

     String favColor

    static constraints = {

    }

}

   3.  Then generate-all lameproj.FavColor

   4.  Copy views >favcolor > index.gsp

   5.  Paste and rename to youtube.gsp

   6.  Add below code to favColorController.groovy

…

     def youtube(Integer max) {

          params.max = Math.min(max ?: 10, 100)

          def somelist = FavColor.findAllByFavColor(params.id)

          respond FavColor.list(params), model:[favColorInstanceCount: FavColor.count(), somelist:somelist]

     }

…

   7.  Edit youtube.gsp to use ${somelist}, about line 34

…

<g:each in="${somelist}" status="i" var="favColorInstance">

…

   8.  Launch you app, add some values, ensure the favorite color entries are exact. Test your youtube method with this link: http://localhost:8080/lameProj/favColor/youtube/Blue