{"id":5106,"date":"2012-02-20T22:07:13","date_gmt":"2012-02-20T16:37:13","guid":{"rendered":"https:\/\/tothenewco.pro\/blog\/?p=5106"},"modified":"2016-12-19T15:06:19","modified_gmt":"2016-12-19T09:36:19","slug":"grails-2-0-action-arguments-data-binding","status":"publish","type":"post","link":"https:\/\/tothenewco.pro\/blog\/grails-2-0-action-arguments-data-binding\/","title":{"rendered":"Grails 2.0 action arguments data binding"},"content":{"rendered":"

One feature that I really like in Grails 2.0 is action arguments databinding<\/a>. While reading more about it I also found a nice grails.web.RequestParameter annotation. When you know something you always find its use case. In my recent project I need to take radius and height as params for creating a cylinder so my action looks like
\n[java]
\ndef save(float radius, float cylinder){
\n….
\n}
\n[\/java]
\nbut now I have changed my action as
\n [java]
\ndef save(@RequestParameter(‘r’)float radius, @RequestParameter(‘h’)float height){
\n….
\n}
\n[\/java]<\/p>\n

Now radius will initialize with params.r and height will initialize with params.h. It made my urls short and my code more readable.
\nI believe that the real benefit of this annotation would be in a scenario where an external API returns some result whose fields are not that intuitive.
\nHowever I have a wish here, that if we could use this annotation on command object fields as well then it will be more useful.
\n
\nHope it helps
\nUday Pratap Singh<\/a>
\nuday@intelligrape.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

One feature that I really like in Grails 2.0 is action arguments databinding. While reading more about it I also found a nice grails.web.RequestParameter annotation. When you know something you always find its use case. In my recent project I need to take radius and height as params for creating a cylinder so my action […]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":3,"footnotes":""},"categories":[7],"tags":[766,768,664,765,767],"class_list":["post-5106","post","type-post","status-publish","format-standard","hentry","category-grails","tag-action-databinding","tag-custom-url","tag-data-binding","tag-parameter-binding","tag-url-binding"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t