Hi Thiago,
Did you find any problem with the code? Please respond, thanks in advance..
Thanks,
Rukmini
On Tue, Aug 13, 2013 at 11:04 AM, rukmini n <rukmini...@gmail.com> wrote:
> Hi Thiago,
>
> Thanks for the response: Here is the code;
>
> import org.apache.tapestry5.Field;
> import org.apache.tapestry5.MarkupWriter;
> import org.apache.tapestry5.ValidationTracker;
> import org.apache.tapestry5.annotations.BeginRender;
> import org.apache.tapestry5.annotations.Environmental;
> import org.apache.tapestry5.annotations.Parameter;
> import org.apache.tapestry5.corelib.components.Form;
> import org.apache.tapestry5.dom.Element;
>
> /**
> * test implementation to allow for custom validation error messages below
> an input field.
> *
> * Within a tml file, place something like:
> * <label t:type="sh/FieldValidationErrorMsg" t:fieldId="inHandDate">
> * Please enter a <i>valid date</i>
> * </label>
> * in the vicinity of an input element with matching field id:
> * <input type="text" t:type="textfield" t:clientId="inHandDate"
> t:value="inHandDate"
> * t:translate="string"/>
> *
> * The component will add attributes for="[fieldId]" and class="error"
> (defined
> * in the corresponding tml file), and (in case the field had an error)
> style="display:block"
> * to this label (CSS class error will by default hide the div).
> *
> * If parameter leaveMessage is omitted or false, the whole error div will
> be removed
> * from the rendered page if the corresponding input field had no
> validation error.
> * Otherwise it will be left in place (hidden through CSS) so that
> client-side validation
> * may use these messages to show if so desired.
> *
> * If parameter errorId is present, the error message will only show if
> the field's
> * tracker errorId matches the value of parameter errorId (so you can
> define multiple
> * messages for the same field: each targeted at a specific validation
> error).
> *
> * If parameter form is present, it will be used as the identifier of the
> form that
> * contained the input element (so it's only relevant if there are
> multiple forms
> * on a page). Otherwise, the form will be derived from the environmental
> information.
> * If parameter form is used, the page's java class will need to have the
> proper get
> * method for the form: public Form getMyForm() {return this.myForm;}
> *
> * If parameter labelId is present, the value will be used as id on the
> label element.
> */
> public class FieldValidationErrorMsg {
>
> @Parameter(required = true, defaultPrefix="literal")
> private String fieldId;
>
> @Parameter
> private Form form;
>
> @Parameter
> private Boolean leaveMessage; //TODO: this should ideally be a
> page/flow configuration in stead of a parameter so that we can choose to
> leave all error messages in place (but hidden) if those could be used for
> client-side validation purposes.
>
> @Parameter (defaultPrefix="literal")
> private String errorId;
>
> @Parameter (defaultPrefix="literal")
> private String labelId;
>
> @Environmental(false)
> private ValidationTracker tracker;
>
> public void setFieldId(String fieldId) {
> this.fieldId = fieldId;
> }
> public String getFieldId() {
> return this.fieldId;
> }
> public String getLabelId() {
> return this.labelId;
> }
> public void setForm(Form form) {
> this.form = form;
> }
>
> public void afterRenderBody(MarkupWriter writer) {
> final String _fieldId = this.fieldId;
> Field f = new Field() {
> public String getLabel() { return null; }
> public boolean isDisabled() { return false; }
> public String getClientId() { return _fieldId; }
> public String getControlName() { return _fieldId; }
> public boolean isRequired() { return false; }
> };
>
> // grab the FieldValidationErrorMsg component
> Element msgEle = writer.getElement();
>
> ValidationTracker tracker;
> if ( this.form != null ) {
> tracker = this.form.getDefaultTracker();
> } else {
> tracker = this.tracker;
> }
>
> if ( (this.errorId != null && tracker.getError(f) != null &&
> tracker.getError(f).contains(this.errorId))
> || (this.errorId == null && tracker.inError(f)) ) {
> // we need to display the error message, so do nothing, leave
> it as is
> } else {
> // remove the error message, unless there's an instruction to
> leave it in place
> if (this.leaveMessage==null || !this.leaveMessage) {
> msgEle.removeChildren();
> msgEle.pop();
> } else {
> // we're leaving it in place, but will hide it on page
> load by adding a class "hidden"
> String curClassValue = msgEle.getAttribute("class");
> String[] classValues = {"class","hidden "+curClassValue};
> msgEle.forceAttributes(classValues);
> }
> }
> }
>
> }
>
>
> and FieldValidationErrorMsg.tml for the same:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <html for="${fieldId}" class="error" generated="false" xmlns:t="
> http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";>
> <t:if test="labelId">
> <t:sh.common.addAttribute name="id" value="${labelId}"/>
> </t:if>
> <t:body />
> </html>
>
>
> Thanks,
> Rukmini
>
>
> On Tue, Aug 13, 2013 at 9:55 AM, Thiago H de Paula Figueiredo <
> thiag...@gmail.com> wrote:
>
>> On Tue, 13 Aug 2013 13:48:29 -0300, rukmini n <rukmini...@gmail.com>
>> wrote:
>>
>> Hi all,
>>>
>>
>> Hi!
>>
>>
>> I get the below exception while rendering tml file.
>>>
>>
>> What's the Java source code for FieldValidationErrorMsg?
>>
>> --
>> Thiago H. de Paula Figueiredo
>>
>> ------------------------------**------------------------------**---------
>> To unsubscribe, e-mail:
>> users-unsubscribe@tapestry.**apache.org<users-unsubscr...@tapestry.apache.org>
>> For additional commands, e-mail: users-h...@tapestry.apache.org
>>
>>
>
