Re: WO Tutorial - Component Communication
Re: WO Tutorial - Component Communication
- Subject: Re: WO Tutorial - Component Communication
- From: Cameron Knowlton <email@hidden>
- Date: Sun, 5 Jan 2003 22:07:05 -0700
I put in a diagnotistic test in the noDataEntered method; sure enough, I get back "user == null".
Below is my Main.java file... sorry for those on digest.
Quick question: In the Groups & Files / Classes folder, I have listed:
Application.java
Session.java
DirectAction.java
User.java
To the left of these, there's a checkbox... but I can't find in the documentation what that indicates.
thanks,
Cameron Knowlton
------------
//
// Main.java: Class file for WO Component 'Main'
// Project ComponentCommunication
//
// Created by cameronk on Sun Jan 05 2003
//
import com.webobjects.foundation.*;
import com.webobjects.appserver.*;
import com.webobjects.eocontrol.*;
import com.webobjects.eoaccess.*;
public class Main extends WOComponent {
protected User user;
public Main(WOContext context) {
super(context);
}
/**
* Determines whether the user has entered data into <code>user</code>.
*
* @return true when the user has entered data into
* user.
**/
public boolean noDataEntered() {
boolean noDataEntered;
if (user == null) {
System.out.println("user == null");
}
else {
if (user.entryIncomplete()) {
System.out.println("user.entryIncomplete");
}
}
if (user == null || user.entryIncomplete()) {
noDataEntered = true;
}
else {
noDataEntered = false;
}
return noDataEntered;
}
public User user()
{
return user;
}
public void setUser(User newUser)
{
user = newUser;
}
public UserEdit editUser()
{
UserEdit nextPage = (UserEdit)pageWithName("UserEdit");
if (user == null) {
user = new User();
}
// Send user to the UserEdit page.
nextPage.setUser(user);
return nextPage;
}
}
------------
>Did you set the 'negate' binding on your WOConditional? It should either be un-set, or set to 'false' so that the content within the WOConditional will be shown only if noDateEntered() returns true.
>
>In reply to your other message, I am not a C programmer, but it looks as though you have your methods in the correct place.
>
>public class Main extends WOComponent {
>
> public Main(WOContext context) {
> super(context);
> }
>
> // Your methods here
>
>}
>
>If they were terribly out of place, I image the compiler would complain.
>
>patrick
>
>
>
>On Sunday, January 5, 2003, at 04:13 PM, Cameron Knowlton wrote:
>
>>p.s. I'm not getting an error message, but after submitting the form, I get the 'No data entered' message.
>>
>>Checking the logic, I find that the assertion:
>>
>> if (user == null)
>>
>>is testing true, so the WOConditional fires wrong.
>>
>>
>>thanks again,
>>Cameron Knowlton
>>
>>>Looks ok to me as long as you have something like...
>>>
>>> protected User user;
>>>
>>>... in Main.java, and the User.java class is added to the application server.
>>>
>>>What error are you getting? Every so often it help to "Clean" your application by clicking on the clean (broom) button in Project Builder.
>>>
>>>patrick
>>>
>>>
>>>On Sunday, January 5, 2003, at 01:23 PM, Cameron Knowlton wrote:
>>>
>>>>Greetings, and a question from the newbie:
>>>>
>>>>I'm working through the tutorial, but I'm stuck on the final run of the ComponentCommunication project.
>>>>
>>>>Specifically, the noDataEntered() function is failing on its test of
>>>>
>>>> if (user == null)
>>>>
>>>>It would seem that my user doesn't get instantiated. I do have the code in Main.java:
>>>>
>>>>----------
>>>> public UserEdit editUser()
>>>> {
>>>> UserEdit nextPage = (UserEdit)pageWithName("UserEdit");
>>>>
>>>> if (user == null) {
>>>> user = new User();
>>>> }
>>>>
>>>> // Send user to the UserEdit page.
>>>> nextPage.setUser(user); return nextPage;
>>>> }
>>>>----------
>>>>
>>>>Any ideas?
>>>>
>>>>thanks in advance,
>>>>Cameron Knowlton
>>>>_______________________________________________
>>>>webobjects-dev mailing list | email@hidden
>>>>Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/webobjects-dev
>>>>Do not post admin requests to the list. They will be ignored.
_______________________________________________
webobjects-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/webobjects-dev
Do not post admin requests to the list. They will be ignored.