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erattachment help
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erattachment help


  • Subject: erattachment help
  • From: Theodore Petrosky <email@hidden>
  • Date: Fri, 24 Sep 2010 09:45:44 -0700 (PDT)

ok. so I am still trying to get erattachment working. I have a little test app.

I can select an image (pdf, jpg) and 'upload' it. When I click its link it will show in the ERAttachmentViewer.

however if I quit and relaunch my app, the images do not reload from the database (postgresql).

i see in the eclipse logs:

evaluateExpression: <com.webobjects.jdbcadaptor.PostgresqlExpression: "SELECT t0.attachmentDataID, t0.available, t0.configurationName, t0.creationDate, t0.filesystemPath, t0.height, t0.id, t0.mimeType, t0.originalFileName, t0.ownerID, t0.parentID, t0.proxied, t0.s3Path, t0.size, t0.smallData, t0.storageType, t0.thumbnail, t0.webPath, t0.width FROM ERAttachment t0 WHERE ((t0.storageType = ?::varchar(10) OR t0.storageType = ?::varchar(10) OR t0.storageType = ?::varchar(10)) AND t0.id = ?::int4) LIMIT 1" withBindings: 1:"db"(storageType), 2:"file"(storageType), 3:"s3"(storageType), 4:1(id)>

Sep 24 12:28:12 AttachmentTest[54058] DEBUG NSLog  - fetch canceled
Sep 24 12:28:12 AttachmentTest[54058] DEBUG NSLog  - 1 row(s) processed


Why the fetch canceled, I don't know. Little things I see that shouldn't matter, 'FROM ERAttachment'. of course postgresql will fold the name to lowercase automatically and my table is named erattachment so this shouldn't matter.

I see in the postgresql logs right after I click the hyperlink to view the image:

[unknown]LOG:  execute <unnamed>: SELECT t0.data, t0.id FROM ERAttachmentData t0 WHERE t0.id = $1::int4
[unknown]DETAIL:  parameters: $1 = '1'

so it is trying to get the link. maybe I am saving bad data?

should I be massaging the data before trying to save it to the backend?

I do have in my properties file:

er.attachment.ImageMeta.image.storageType=db


my migrations and connection dict look like:

# Migrations
er.migration.migrateAtStartup=true
er.migration.createTablesIfNecessary=true
er.migration.modelNames=AttachmentTest
AttachmentTest.MigrationClassPrefix=com.eltek.migrations.AttachmentTestMigration

# Connection Dictionary
dbConnectURLGLOBAL=jdbc:postgresql://localhost/attachmenttest?capitalizeTypenames=true&zeroDateTimeBehavior=convertToNull
dbConnectUserGLOBAL=asacksadmin
dbConnectPasswordGLOBAL=4004
dbConnectPluginGLOBAL=PostgresqlPlugIn
dbConnectDriverGLOBAL=org.postgresql.Driver




html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<html>
  <head>
    <title>Untitled</title>
  </head>
  <body>
    <webobject name = "TheForm">
      <ul>
        <wo:loop list = "$theMetaList" item = "$theMeta">
          <li>
            <wo:WOHyperlink action = "$selectMeta"><wo:WOString value = "$theMeta.imageTitle" /></wo:WOHyperlink>
          </li>
        </wo:loop>
      </ul>
      <webobject name = "ImageUpload" />
      <webobject name = "UploadAction" /><br/>
      <webobjects name = "TheAttachmentViewer" />
    </webobject>
  </body>
</html>

WOD

ImageUpload : ERAttachmentUpload {
        configurationName = "ImageMeta.image";
        editingContext = theEC;
        attachment = theNewMeta.image;
}

TheForm : WOForm {
        enctype = "multipart/form-data";
        multipleSubmit = true;
}


UploadAction : WOSubmitButton {
        action = uploadImage;
        value = "Upload Avatar!";
}

TheAttachmentViewer : ERAttachmentViewer {
	attachment = theSelectedMeta.image;
	width = 150;
}


main.java

package com.eltek.components;

import com.eltek.models.ImageMeta;
import com.eltek.models.People;
import com.webobjects.appserver.WOContext;

import er.extensions.components.ERXComponent;
import er.extensions.eof.ERXEC;

import com.webobjects.appserver.WOActionResults;
import com.webobjects.eocontrol.EOEditingContext;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSLog;

public class Main extends ERXComponent {

	public EOEditingContext theEC;
	public NSArray<ImageMeta> theMetaList;
	public ImageMeta theMeta, theNewMeta, _theSelectedMeta;


	public People thePerson;

	public Main(WOContext context) {
		super(context);

		theEC = ERXEC.newEditingContext();
		thePerson = People.fetchPeople(theEC, null);

		theMetaList = ImageMeta.fetchImageMetas(theEC, null, null);

		theNewMeta = ImageMeta.createImageMeta(theEC, "the title", thePerson);

		NSLog.out.appendln("******** refreshing  theMetaList.count() " + theMetaList.count()) ;

	}

	public WOActionResults uploadImage() {
		theEC.saveChanges();
		theMetaList = ImageMeta.fetchImageMetas(theEC, null, null);
		theNewMeta = ImageMeta.createImageMeta(theEC, "the title", thePerson);
		return null;
	}

	public WOActionResults selectMeta() {
		NSLog.out.appendln("******** refreshing  selectMeta() ") ;

		setTheSelectedMeta(theMeta);
		return null;
	}

	public ImageMeta theSelectedMeta() {
		return _theSelectedMeta;
	}

	public void setTheSelectedMeta(ImageMeta aMeta) {
		this._theSelectedMeta = aMeta;
	}
}





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