Can I assign a javascript variable to a grails object like this?
var newReport = ${report};
report is a grails domain object, which is passed back from controller to the gsp file.
Currently this doesn't work in my page.
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2 Answers
Assuming that report is a Grails domain class, you will have to 'translate' this to a valid javascript format. One way is to set this as JSON. Something like:
In the controller
def reportJson = report as JSON
In the gsp
<script type='text/javascript'>
var newReport = $.parseJSON("${reportJson}");
</script>
The parseJSON takes the json string and return a javascript object.
1 Comment
James Kleeh
Could also do
$.parseJSON("${report as JSON}"); if you didn't want to update the controller.Just render domain object as JSON to gsp, where some javascript code get the json by eval() function. For instance:
domain class - Band:
String bandName //some property
...
controller:
def bands = Band.list()
render(template:"result", model:[bands:bands as JSON]
_result.gsp:
<script>
var bandList = eval(${bands});
for(i=0; i<bandList.length; i++){
var name = bandList[i].bandName;
....
}
....
</script>
