Re: Velocity Template Question
Hi; Thanks for that -- works really well. cheers. ___ Andrew Lindesay www.lindesay.co.nz ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Velocity Template Question
I'm assuming that the 'code' is an EO attribute of an entity. I think you'll
have to iterate over the list of attributes, check the name and set a flag
manually. Then you can conditionally generate your template code base on the
flag.
I may be wrong--and I'd love to find an easier way if I am--but this is how I
do such a thing in my templates. I haven't actually tested the following code,
but I use something similar to check for the presence of not-null class
properties. Maybe it will point you in the right direction:
#set ($hasCode = 'false')
#foreach ($attribute in $entity.classAttributes)#if ($attribute.name ==
'code')#set ($hasCode = 'true')#end#end
#if ($hasCode == 'true')
@SuppressWarnings("unchecked")
public static nz.co.orcon.osm.eo.main.OcnDuration
fetchByCode(EOEditingContext ec, String code) {
}
...
#end
I haven't yet found an easy way to break out of the foreach loop, so for now my
templates always iterate over the entire list of attributes (but only once to
set the flag).
Hope that helps.
Fez
On 2009-Nov-20, at 02:46 PM, Andrew Lindesay wrote:
> Hi Mike;
>
> You are right; I'm trying to add a method to the entitys' superclasses for
> fetching based on "code" if the "code" attribute is present. I'm trying to
> achieve what I had before using velocity. I am doing something like this,
> but the #if is not firing;
>
>> #if ($entity.sortedClassAttributes.containsObject(code))
>> @SuppressWarnings("unchecked")
>> public static nz.co.orcon.osm.eo.main.OcnDuration
>> fetchByCode(EOEditingContext ec, String code) {
>>
>> }
>>
>> ...
>>
>> #end
>
> cheers.
>
> ___
> Andrew Lindesay
> www.lindesay.co.nz
>
> ___
> Do not post admin requests to the list. They will be ignored.
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Re: Velocity Template Question
containsObject is an NSArray method, but these objects are actually Entity
Modeler's non-WO versions of the EO classes, which are
java.util.List/java.util.Set, so if it has any chance of working you will need
to use contains instead containsObject. I've never really tried to do this,
though, and I don't know what the actual limits of the evaluation engine in
velocity are. You're also not showing where the "code" variable came from ...
was that a getEntityNamed("something") assignment earlier?
On Nov 20, 2009, at 3:46 PM, Andrew Lindesay wrote:
> Hi Mike;
>
> You are right; I'm trying to add a method to the entitys' superclasses for
> fetching based on "code" if the "code" attribute is present. I'm trying to
> achieve what I had before using velocity. I am doing something like this,
> but the #if is not firing;
>
>> #if ($entity.sortedClassAttributes.containsObject(code))
>> @SuppressWarnings("unchecked")
>> public static nz.co.orcon.osm.eo.main.OcnDuration
>> fetchByCode(EOEditingContext ec, String code) {
>>
>> }
>>
>> ...
>>
>> #end
>
> cheers.
>
> ___
> Andrew Lindesay
> www.lindesay.co.nz
>
___
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Re: Velocity Template Question
Hi Mike;
You are right; I'm trying to add a method to the entitys' superclasses for
fetching based on "code" if the "code" attribute is present. I'm trying to
achieve what I had before using velocity. I am doing something like this, but
the #if is not firing;
> #if ($entity.sortedClassAttributes.containsObject(code))
> @SuppressWarnings("unchecked")
> public static nz.co.orcon.osm.eo.main.OcnDuration
> fetchByCode(EOEditingContext ec, String code) {
>
> }
>
> ...
>
> #end
cheers.
___
Andrew Lindesay
www.lindesay.co.nz
___
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Re: Velocity Template Question
i'm not exactly sure what you're trying to do ... are you trying to lookup an attribute named "code" and then ask if the given entity contains that attribute, then you render whatever is in the #if? Maybe i should ask you what you're attempting to achieve. On Nov 20, 2009, at 3:17 PM, Andrew Lindesay wrote: > Hi Mike; > >>> #if ($entity.sortedClassAttributes.containsObject(code)) >> ... >> and "contains" -- it's a List (maybe a Set). and you would have to have >> looked up the attribute "code" already, obviously. > > > Sorry; I'm a bit new to this -- can you elaborate on that? > > cheers. > > ___ > Andrew Lindesay > www.lindesay.co.nz > ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Velocity Template Question
Hi Mike; >> #if ($entity.sortedClassAttributes.containsObject(code)) > ... > and "contains" -- it's a List (maybe a Set). and you would have to have > looked up the attribute "code" already, obviously. Sorry; I'm a bit new to this -- can you elaborate on that? cheers. ___ Andrew Lindesay www.lindesay.co.nz ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Velocity Template Question
>>> #if ($entity.sortedClassAttributes.code) > >>> #if ($entity.sortedClassAttributes().containsObject(code)) > > or > >>> #if ($entity.sortedClassAttributes.containsObject(code)) and "contains" -- it's a List (maybe a Set). and you would have to have looked up the attribute "code" already, obviously. ms ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Velocity Template Question
On Nov 19, 2009, at 8:52 PM, Andrew Lindesay wrote: Hello; In eo-gen templates, is it possible to do something like this; #if ($entity.sortedClassAttributes.code) #if ($entity.sortedClassAttributes().containsObject(code)) or #if ($entity.sortedClassAttributes.containsObject(code)) should work. Chuck ... #end Where the ... would be inserted if the "code" attribute were present in the list of 'sortedClassAttributes'? cheers. ___ Andrew Lindesay www.lindesay.co.nz ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
