CODEWITHSUNDEEP
grailsgroovyparametersloops
Bella
Bella

Reputation: 185

grails how to iterate through params and set values

Is there anybody who has written a universal action for iterating through all params values and setting these values on an object?

I want to write something like this:

def updateSomeObject = {obj->
    for (def key : params.keySet()) {
        if (obj.hasProperty(key) != null) {
            def strValue = params[key]
            obj[key] = strValue
    }
}

but this works only for String values. In my case there are one to one associations, so it has to work with objects too.

I would like not to set properties (their names) to object, which values are null.

Upvotes: 1

Views: 7959

Answers (3)

Josescalia
Josescalia

Reputation: 51

I use this to loop grails params:

Collection<?> keys = params.keySet()
    for (Object key : keys) {
        //check if key=action and key=controller which is grails default params
        if (!key.equals("action") && !key.equals("controller")) {
            println key //print out params-name
            println params.get(key) //print out params-value
        }
    }

Hope that help...

Upvotes: 3

mpccolorado
mpccolorado

Reputation: 827

Is this what you want to do?

obj.properties = params

Hope that helps

Upvotes: 0

D&#243;nal
D&#243;nal

Reputation: 187499

It looks like you're trying to bind request parameters to an object. You really shouldn't need to write your own code to do this, as the Grails controllers provide a bindData method that does this already.

Upvotes: 2

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