I think I follow. So you only display the TextField if the checkbox was
checked (via refresh submit)?
I plowed ahead with trying to implement my own AbstractFormComponent that
would use an html template and also render some of its own content. However, I
am getting a stale link exception when I submit. Either I am setting something
up incorrectly or missing the boat on the rewind. Not exactly sure how to parse
the StaleLink page. Been diving through the list archives and source trying to
get a better idea on how component ids are generated and the rewind is done.
I can create a new form component re-using other form components - right?
To read the template I yanked code out of the BaseComponent class.
In the end, I want my custom component to display a checkbox and a textfield
(possibly a PropertySelection as well). When the form is submitted, if the
checkbox is checked but no content is contained in the textfield I want to
decorate it and add a message to the top. This component will be used at least
a dozen time on the page for different search parameters.
Gradually learning!
Thanks,
Ryan
Exception:
---
You have clicked on a stale link.
Rewind of form test/testForm expected 1 more form elements, starting with id
'selected'.
This is most likely the result of using your browser's back button, but can
also be an application error.
Component Java code:
---
public abstract class ComboTest extends AbstractFormComponent implements
ITemplateComponent {
private static Logger logger = Logger.getLogger(ComboTest.class);
private static final int OUTER_INIT_SIZE = 5;
private IRender[] _outer;
private int _outerCount = 0;
public ComboTest() {
}
public abstract boolean isSelected();
public void readTemplate(IRequestCycle cycle, IPageLoader loader) {
loader.loadTemplateForComponent(cycle,this);
}
protected void renderFormComponent(IMarkupWriter writer, IRequestCycle
cycle) {
logger.debug("being combotest render");
// this was an attempt to solve it, thought maybe it was missing the id
for this component (this didn't work.)
writer.begin("input");
writer.attribute("type","hidden");
writer.attribute("name",getName());
writer.attribute("id",getName());
writer.end();
for(int i =0; i < _outerCount; i++) {
_outer[i].render(writer,cycle);
}
logger.debug("end combotest render");
}
protected void rewindFormComponent(IMarkupWriter writer, IRequestCycle
cycle) {
logger.debug("combotest choosen: choosen: " +
cycle.getParameter(getName()));
}
public void finishLoad(IRequestCycle cycle , IPageLoader loader ,
IComponentSpecification specification) {
logger.debug("finishing load");
readTemplate(cycle,loader);
super.finishLoad(cycle,loader,specification);
}
public void addOuter(IRender element) {
logger.debug("outer being rendered");
if(_outer == null) {
_outer = new IRender[OUTER_INIT_SIZE];
_outer[0] = element;
_outerCount = 1;
return;
}
if (_outerCount == _outer.length) {
IRender[] newOuter;
newOuter = new IRender[_outer.length*2];
System.arraycopy(_outer,0,newOuter,0,_outerCount);
_outer = newOuter;
}
_outer[_outerCount++] = element;
}
}
HTML Template:
---
<html>
<head >
<title>Test</title>
</head>
<body jwcid="$content$">
<input type="checkbox" jwcid="selected"/>
</body>
</html>
Template:
---
<component-specification class="com.kodak.mis.web.components.ComboTest"
allow-informal-parameters="yes"
allow-body="no">
<component id="selected" type="Checkbox">
<binding name="value" value="selected"/>
</component>
</component-specification>
On Friday, June 02, 2006, at 12:38PM, Mark Stang <[EMAIL PROTECTED]> wrote:
>What we do is to wrap the checkbox in an AnySubmit. And then when checked a
>submit happens and the field is then displayed with whatever mark-up is
>required. If the user attempts to leave the screen standard edits tell them
>they need to provide a value. If they uncheck the box, the field goes away.
>Basically, it is done via a Conditional or Choose Component.
>
>hth,
>
>Mark
>
>
>-----Original Message-----
>From: Ryan Cuprak [mailto:[EMAIL PROTECTED]
>Sent: Fri 6/2/2006 12:38 PM
>To: users@tapestry.apache.org
>Subject: Custom component validation - two fields
>
>Hello,
> We are trying to implement a rather simple custom form component for a search
> page and perform validation on it. The custom component has a checkbox and a
> text field. If the checkbox is checked then a value must be provided in the
> text field. If not, the field must be decorated and a message displayed at
> the top of the form (tie in with the delegate etc). What is the recommended
> approach for implementing such component validation? Must we extend
> AbstractFormComponent and implement the renderFormComponent or is there a
> simpler approach? Is there a hybrid AbstractFormComponent/BaseComponent we
> have missed somehow?
>
> Thanks!
> Ryan
>
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