BindData with Excludes - how to use it?

[bkbonner]

I'm trying to update bind parameters with a domain class and exclude a property of the domain class that is a Many-Many since I'm only receiving the id of the link from a select list.

I'm trying to use the bindData method with the signature that excludes the property in question, but I keep getting error messages, like it's trying to set it.  I found the bindData method here:  http://grails.org/Controller+Dynamic+Methods

bindData(target, this.params, ['firstName', 'lastName']) // exclude firstName and lastName (since 0.4)

Here's my simple domain class:

class Grant {
        Organization organization
        String projectTitle
        String grantDescription
        FocusArea focusArea
        static belongsTo = Region
        static hasMany = [regionsServed:Region]
        BigDecimal amountAwarded
        int yearAwarded
        int grantDurationInMonths
        Status status
       
        String toString(){
                "${organization.name} - ${projectTitle}"
        }
}

And a snippet of my update method:

   def update = {
        println params.dump()
        def grant = Grant.get( params.id )
        if(grant) {
        // Exclude regionsServed
            bindData(grant, params, ['regionsServed'])


I receive this error message.  I think it's failing based on the regionsServed parameter.  Any idea how I can get the bind to work and exclude regionsServed?   I've tried it with regionsServed.id with the same results.

Message: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}
Caused by: groovy.lang.MissingMethodException: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}
Class: GrantController
At Line: [53]
Code Snippet:
53: bindData(grant, params, ['regionsServed'])
54: // def region = Regions.get( params.regionsServed.id )

Caused by: groovy.lang.MissingMethodException: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}

        at GrantController$_closure6.doCall(GrantController.groovy:53)

        at GrantController$_closure6.doCall(GrantController.groovy)

[Brad Whitaker]

You're looking at out of date and non-maintained documentation. See the official document at http://grails.org/doc/1.0.x/ and you'll find this example of the correct syntax:

bindData(target, this.params, 'firstName', 'lastName', "author")

bkbonner wrote:

I'm trying to update bind parameters with a domain class and exclude a property of the domain class that is a Many-Many since I'm only receiving the id of the link from a select list.

I'm trying to use the bindData method with the signature that excludes the property in question, but I keep getting error messages, like it's trying to set it.  I found the bindData method here:  http://grails.org/Controller+Dynamic+Methods

bindData(target, this.params, ['firstName', 'lastName']) // exclude firstName and lastName (since 0.4)

Here's my simple domain class:

class Grant {
        Organization organization
        String projectTitle
        String grantDescription
        FocusArea focusArea
        static belongsTo = Region
        static hasMany = [regionsServed:Region]
        BigDecimal amountAwarded
        int yearAwarded
        int grantDurationInMonths
        Status status
       
        String toString(){
                "${organization.name} - ${projectTitle}"
        }
}

And a snippet of my update method:

   def update = {
        println params.dump()
        def grant = Grant.get( params.id )
        if(grant) {
        // Exclude regionsServed
            bindData(grant, params, ['regionsServed'])


I receive this error message.  I think it's failing based on the regionsServed parameter.  Any idea how I can get the bind to work and exclude regionsServed?   I've tried it with regionsServed.id with the same results.

Message: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}
Caused by: groovy.lang.MissingMethodException: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}
Class: GrantController
At Line: [53]
Code Snippet:
53: bindData(grant, params, ['regionsServed'])
54: // def region = Regions.get( params.regionsServed.id )

Caused by: groovy.lang.MissingMethodException: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"2"}

        at GrantController$_closure6.doCall(GrantController.groovy:53)

        at GrantController$_closure6.doCall(GrantController.groovy)

[bkbonner]

Hi Brad,

I've tried this to no avail as well.  If you look at this link:  http://grails.org/doc/1.0.x/guide/6.%20The%20Web%20Layer.html#6.1.6%20Data%20Binding  from the docs you reference,  there is an explicit example that I believe reflects the way I used it.

def sc = new SaveCommand()
bindData(sc, params, ['myReadOnlyProp'])

Here's the new error message:

Message: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"1"}
Caused by: groovy.lang.MissingMethodException: No signature of method: static java.util.Set.get() is applicable for argument types: (java.lang.String) values: {"1"}
Class: GrantController
At Line: [53]
Code Snippet:
53: bindData(grant, params, 'regionsServed')
54: def region = Region.get( params.regionsServed.id )

I guess if this documentation is as out of date as you suggested and non-maintained -- we should pull it off the site.  We should correct it the way it needs to be stated, incorporate the good and get rid of the bad.  The bad clearly confuses people.  I can't see how to edit the UserGuide at:  http://docs.codehaus.org/display/GRAILS/Documentation.    I found the Dynamic Method page at:  http://docs.codehaus.org/display/GRAILS/Controller+Dynamic+Methods.   I'll modify the page accordingly if it's wrong.  

Can someone tell me definitively how to exclude parameters?

Brian

Brad Whitaker wrote:

You're looking at out of date and non-maintained documentation. See the official document at http://grails.org/doc/1.0.x/ and you'll find this example of the correct syntax:

bindData(target, this.params, 'firstName', 'lastName', "author")

[snip  "original quote" /]

[bkbonner]

Brad, forgot to say thanks.

Also, I do think the list syntax for the properties is more clear than a variable list of attributes.

i.e. bindData(target, params, ['exclude1','exclude2'], 'myPrefix')

is clearer to me and easier to see that a list of parameters are being excluded than:

bindData(target, params, 'exclude1', 'exclude2', "myPrefix")

This can be to easily confused with:

bindData(target, params, 'exclude1', 'exclude2', 'myPrefix')


Brian

[Peter Ledbrook-2]

> Message: No signature of method: static java.util.Set.get() is applicable
> for argument types: (java.lang.String) values: {"1"}
> Caused by: groovy.lang.MissingMethodException: No signature of method:
> static java.util.Set.get() is applicable for argument types:
> (java.lang.String) values: {"1"}
> Class: GrantController
> At Line: [53]
> Code Snippet:
> 53: bindData(grant, params, 'regionsServed')
> 54: def region = Region.get( params.regionsServed.id )

Looks like a bug. Could you attach your stacktrace.log file (in the
root of the project) to an e-mail? That will help narrow down what the
problem is.

Thanks,

Peter

--
Software Engineer
G2One, Inc.
http://www.g2one.com/

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[bkbonner]

Peter, thanks.  I've attached the stack trace.  I'll try to look through the code as well.  I was using Grails 1.1-SNAPSHOT 82.  I recreated the same problem in 1.0.3 using a different example.

Brian

Peter Ledbrook-2 wrote:

> Message: No signature of method: static java.util.Set.get() is applicable
> for argument types: (java.lang.String) values: {"1"}
> Caused by: groovy.lang.MissingMethodException: No signature of method:
> static java.util.Set.get() is applicable for argument types:
> (java.lang.String) values: {"1"}
> Class: GrantController
> At Line: [53]
> Code Snippet:
> 53: bindData(grant, params, 'regionsServed')
> 54: def region = Region.get( params.regionsServed.id )

Looks like a bug. Could you attach your stacktrace.log file (in the
root of the project) to an e-mail? That will help narrow down what the
problem is.

Thanks,

Peter

--
Software Engineer
G2One, Inc.
http://www.g2one.com/

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stacktrace.log

[Peter Ledbrook-2]

> Peter, thanks.  I've attached the stack trace.  I'll try to look through the
> code as well.  I was using Grails 1.1-SNAPSHOT 82.  I recreated the same
> problem in 1.0.3 using a different example.

It looks like GrailsDataBinder processes some fields but fails to take
into account the "include" and "exclude" settings. Could you raise an
issue please?

Thanks,

Peter

--
Software Engineer
G2One, Inc.
http://www.g2one.com/

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[bkbonner]

Yes I can.  Thanks.  

Brian

Peter Ledbrook-2 wrote:

> Peter, thanks.  I've attached the stack trace.  I'll try to look through the
> code as well.  I was using Grails 1.1-SNAPSHOT 82.  I recreated the same
> problem in 1.0.3 using a different example.

It looks like GrailsDataBinder processes some fields but fails to take
into account the "include" and "exclude" settings. Could you raise an
issue please?

Thanks,

Peter

--
Software Engineer
G2One, Inc.
http://www.g2one.com/

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[bkbonner]

Peter, I created:  http://jira.codehaus.org/browse/GRAILS-3440

I did some additional research on it and posted it in JIRA.  I'm curious what your thoughts are about it.

Thanks,

Brian

[Peter Ledbrook-2]

> I did some additional research on it and posted it in JIRA.  I'm curious
> what your thoughts are about it.

Thanks Brian. I added a comment in the JIRA (for those not watching the issue).

Cheers,

Peter

--
Software Engineer
G2One, Inc.
http://www.g2one.com/

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[bkbonner]

I've figured out what was happening and updated the JIRA.  Hopefully it helps someone who ends up having the same issue.