Hi Kevin,
On 2011-08-15, at 1:36 PM, Kevin Hinkson wrote:
> Hi,
> I've implemented a D2W on an EOModel containing a Place EO with a flattened
> to-many relationship to ERAttachment (Place >> PlaceERAttachment >>
> ERAttachment). "Place" has several other properties so I created a new action
> in MenuHeader.java using EditPageInterface and the rule to enable a wizard
> and that works fine.
What is PlaceERAttachment?
I always model my to-many attachments so that there is an intermediate EO that
has a to-one relationship to ERAttachment.
>
> For actually adding new photos within the wizard things seem to fall apart.
> Initially I was getting an exception about the abstract class ERAttachment
> being instantiated, but "solved" that by mapping the relationship to
> ERFileAttachment instead of ERAttachment.
You shouldn't model to the subclass.
Place ->> Photo -> ERAttachment
>
> I've also attempted to add a rule to tell D2W how to edit an ERAttachment.
> Using: (entity.name = 'Place' and task = 'edit' and propertyKey = 'photos')
> => componentName = "ERMD2WEditAttachment"
> Gives me: java.lang.ClassCastException:
> com.webobjects.eocontrol._EOCheapCopyMutableArray cannot be cast to
> er.attachment.model.ERAttachment
Photos is an array. You need to edit a single attachment.
Do you have your properties set?
er.attachment.Photo.attachment.storageType = file
er.attachment.Photo.attachment.file.overwrite = false
er.attachment.Photo.attachment.file.filesystemPath = /tmp/erattachment
>
> So...
> Using: (task = 'edit' and entity.name = 'PlaceERFileAttachment' and
> propertyKey = 'erFileAttachment') => componentName = "ERMD2WEditAttachment"
> Gives me: java.lang.IllegalArgumentException: This form is missing a
> 'enctype=multipart/form-data' attribute. It is required for WOFileUpload to
> work.
Did you set your attachmentConfiguration in Rules to match your properties?
100 : ((pageConfiguration like 'Edit*Photo' or pageConfiguration like
'Create*Photo') and propertyKey = 'attachment') => attachmentConfigurationName
= "Photo.attachment" [com.webobjects.directtoweb.Assignment]
>
> And now I'm not sure how else to proceed. Does anyone have any suggestions?
Additional rules I have:
100 : pageConfiguration like 'Create*Photo' => displayPropertyKeys =
("attachment") [com.webobjects.directtoweb.Assignment]
100 : pageConfiguration like 'Edit*Photo' => displayPropertyKeys =
("attachment") [com.webobjects.directtoweb.Assignment]
100 : ((pageConfiguration like 'Edit*Photo' or pageConfiguration like
'Create*Photo') and propertyKey = 'attachment') => componentName =
"ERMD2WEditAttachment" [com.webobjects.directtoweb.Assignment]
See the thread called "ERAttachment... to-many and thumbs" from last week.
David
>
> — K.R.H.
>
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