I think the event.getValue() method sort of does this. Take a look here: http://docs.model-glue.com/wiki/ReferenceMaterials/EventApi#GetValuename:stringdefault:any
DW On Mon, Dec 19, 2011 at 7:11 AM, Rawlins <[email protected]> wrote: > Hello Guys, > > I'm finding myself with an increasing need to param a value into the event > (set it only if it does not already exist). > > One example use case for this is form validation. > > In my controller method for the form I need a validation result object, > which contains all the errors and other failure information. > > This object could come from two places - It could be that the user has > been passed back to this form page after a failed validation, with the > result object preserved in the event, or if one doesn't already exist and > this is the first time viewing the form, I'll create a new result object > for them. > > This results in handler code that looks something like this: > > <!--- Param the validation result into the object too. ---> > <cfif NOT event.valueExists("ValidationResult")> > <cfset event.setValue("ValidationResult", Beans.ValidateThis.newResult()) > /> > </cfif> > > This works just fine, but it's needlessly verbose. I'd like to propose a > change to the event object API that makes this much easier - here are a > couple of ideas: > > event.paramValue('name', 'value'); > > or a modification to the current setValue() method, which adds a 3rd > argument that defines if the value should be overwritten, if false and a > previous value exists for the key then it's left intact. > > event.setValue("name", "value", false); > > Does anyone else have some ideas on this? am I looking at this situation > in completely the wrong way? does something already exist like this? > > Thanks. > > Robert > > -- > Model-Glue Sites: > Home Page: http://www.model-glue.com > Documentation: http://docs.model-glue.com > Bug Tracker: http://bugs.model-glue.com > Blog: http://www.model-glue.com/blog > > You received this message because you are subscribed to the Google > Groups "model-glue" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/model-glue?hl=en -- Plutarch - "The mind is not a vessel to be filled but a fire to be kindled." -- Model-Glue Sites: Home Page: http://www.model-glue.com Documentation: http://docs.model-glue.com Bug Tracker: http://bugs.model-glue.com Blog: http://www.model-glue.com/blog You received this message because you are subscribed to the Google Groups "model-glue" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/model-glue?hl=en
