Hi,

I'm migrating a shopping cart checkout to use the webflow plugin. The former implementation used to perform validation of the order's delivery address using a custom UserDetailsCommand object which included a AddressCommand address property, as shown below:

@Validateable
class UserDetailsCommand implements Serializable {

    String firstName
    String lastName
    AddressCommand deliveryAddress
    ...

    static constraints = {
        firstName nullable: false, blank: false, size: 1..50
        lastName nullable: false, blank: false, size: 1..50
        deliveryAddress cascade:true
        ...
    }
    ...
}

@Validateable
class AddressCommand implements Serializable {
    String address1
    String address2
    String city
    String county
    String postcode

    static constraints = {
        address1 blank:false, size: 1..50
        address2 blank:false, size: 1..50
        city blank:false, size: 1..50
        county  blank:false, size: 1..50
        postcode blank:false, matches: /[A-Za-z]{1,2}[0-9Rr][0-9A-Za-z]?\s?[0-9][ABD-HJLNP-UW-Zabd-hjlnp-uw-z]{2}/
    }
}

After migrating to use the webflow plugin I realised that the address field on the UserDetailsCommand was always coming as null on my transitions and actions, failing therefore validation (in an incorrect way) even though the parameters names seemed to be correct (eg. ["firstName:"David", "deliveryAddress.address1": "10 Downing Street"]).

My webflow now looks something like:

class CartController { 
    def checkoutFlow = {
        startCheckout {
            action {
                ...
            }
            on("success").to "deliveryDetails"
        }
        deliveryDetails {
            on("proceed") { UserDetailsCommand userDetailsCommand ->
                ...
            }
        }
        ...
    }
    ...
}

I believe this set up is correct and there's an issue on the plugin's data binding. If not, could you please provide indications on what I'm doing wrong?

Cheers!

Is there any timeline to upgrade it to grails 3 ?
IS there already some beta release for grails 3 ?

We are facing an issue with WebFlow when working under Java 8. It works fine with Java 7. We get the stacktrace as given below (given that all the inputs are the same from the screen):

org.springframework.webflow.execution.ActionExecutionException: Exception thrown executing org.codehaus.groovy.grails.webflow.engine.builder.ClosureInvokingAction@1f11a4e5 in state 'EDITED' of flow 'EDITED' -- action execution attributes were 'map[[empty]]'
at grails.plugin.cache.web.filter.PageFragmentCachingFilter.doFilter(PageFragmentCachingFilter.java:189)
at grails.plugin.cache.web.filter.AbstractFilter.doFilter(AbstractFilter.java:63)

We tried this with JDK 1.8.0_60 and Grails 2.5.1

we are facing one issue where all the flows are not registered in flowRegistry many times during server startup and it causes NoSuchFlowDefinitionException.
Upon debugging in detail, found that webflow plugin relies on the population of 'flows' property in controllerClasses to populate the flowRegistry:
https://github.com/grails-plugins/grails-webflow-plugin/blob/master/src/groovy/org/codehaus/groovy/grails/webflow/WebFlowPluginSupport.groovy#L116

Based on the debugging done, 'flows' is populated by 'controllers' grails plugin. Here:
https://github.com/jeffbrown/grails-core/blob/master/grails-plugin-controllers/src/main/groovy/org/codehaus/groovy/grails/plugins/web/ControllersGrailsPlugin.groovy#L199

if webflow plugin loads before controllers plugin then all the flows are not detected.

So if controllers is the only plugin which can populate the required data for webflow plugin, then webflow plugin should 'loadAfter' entry for 'controllers' plugin.

We are using grails version 2.4.3 and webflow version 2.1.0