JMHO but this has to be one of the best tutorial videos I have watched.

So many are too broad in scope and make assumptions about knowledge that I 
should already have.

Thank you.

Ted

--- On Fri, 10/15/10, Pascal Robert <prob...@macti.ca> wrote:

From: Pascal Robert <prob...@macti.ca>
Subject: Re: help with ERAttachments
To: "David Holt" <programming...@mac.com>
Cc: webobjects-dev@lists.apple.com, "Theodore Petrosky" <tedp...@yahoo.com>
Date: Friday, October 15, 2010, 8:12 PM

Now available from the podcast feed.

The screencast is now live thanks to Pascal.
http://wocommunity.org/podcasts/ERAttachment-Tutorial.mov
David
On 2010-10-15, at 9:15 AM, David Holt wrote:
Hello Theodore,
On 2010-10-15, at 5:13 AM, Theodore Petrosky wrote:
Thank you. this is perfect. (almost) of course I use only postgresql and there 
are differences. like I had to factor out of the migration0 anything dealing 
with the erattachment table and create a second migration with:

Just swap in the database plugin you need for your database and get rid of the 
FrontBase plugin from the classpath. 
Rerun the creation of Migration0 from EntityModeler and replace the version 
that is in the project. That should get you the tables you need in the format 
your database uses.

public class Tutorial1 extends ERAttachmentMigration {
  public Tutorial1() {
                super("person", "erattachmentid", true);        
        }
}

and of course postgresql wants to fold all table/entities to lowercase.

now I can work backwards and understand what is happening.

Questions:

I see you set in the properties:

Watch the screen cast :-) which should be available pretty soon. I am just 
making it available for Pascal to post now.Also read the package overview as 
Kieran and Amedeo suggested. It explains all the settings that are used 
below.http://webobjects.mdimension.com/hudson/job/Wonder53/javadoc/er/attachment/package-summary.html

er.attachment.Person.photo.tempFolder = /tmp
er.attachment.Person.photo.maxSize = 2097152

Max file size allowed for upload
er.attachment.Person.photo.storageType = file

file, db or S3
er.attachment.Person.photo.file.overwrite = false

If true, a file with the same name overwrites, if false it adds a value to make 
the filename unique
er.attachment.Person.photo.file.filesystemPath = /tmp/erattachment

path to root folder for attachments
In the development mode, where is this location. (I can not find the attachment 
folder)

It will create any folders it needs in the system path. The only caveat is that 
it needs to be writeable by the application (in development OR deployment)
In deployment, where is webobjects expecting this to live?

Doesn't matter. I think I am using 
/Library/WebServer/Documents/ApplicationName/AttachmentIf you use the 
filesystem you'll likely need to make the folder writeable for your 
application.You can also use Amazon S3 or your database. It is all completely 
configurable.

Thank you for this wonderful example.

You are most welcome.
David

Ted


--- On Thu, 10/14/10, David Holt <programming...@mac.com> wrote:

From: David Holt <programming...@mac.com>
Subject: Re: help with ERAttachments
To: "Theodore Petrosky" <tedp...@yahoo.com>
Cc: webobjects-dev@lists.apple.com
Date: Thursday, October 14, 2010, 9:06 PM
I've uploaded a small demo project
here

http://wiki.objectstyle.org/confluence/display/WONDER/ERAttachment+Framework

There is a screencast to go with it once I figure out where
to put it :-)

d

On 2010-10-14, at 8:54 AM, Theodore Petrosky wrote:

Does anyone have an example of using ERAttachments?

I am not using D2W and I just can not figure it out
from the Practical Wonder podcast.

I want to save the attachments to file and then view
them. That's all.

simple little app. but some help would really be
appreciated.

Ted



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