[opencms-dev] OpenCmsDate - problems reusing taglib tags

[Ruben Malchow]

hi mathias,

thanks for the quick reply ... actually, there is no a lot of 
sourceode, but what little there is:

the template looks like this:

		<cms:contentload
			collector="singleFile"
			param="${file}"
			editable="true">
			
			<c:set var="date"><cms:contentshow element="date_reference"/></c:set>
				
			<!--  try to format the date -->
			<c:catch var="ex">
				<c:set var="date">
					<d:formatTimestamp 	
						pattern="yyyy-MM-dd" 	
						value="${date}"
					/>
				</c:set>
			</c:catch>
			
			${date}

			<c:if test = "${ex!=null}">
				<!--
				${ex}	
				${ex.message}	
				 -->
			</c:if>		
			[...]
		</contentload>


the schema is like this:

	[...]
	<xsd:element
		maxOccurs="1"
		minOccurs="1"
		name="date_reference"
		type="OpenCmsString" />
	[...]

	
	[...]
	<mapping
		element="date_reference"
		mapto="attribute:datereleased" />
	[...]


and the tag used basically does this:

	public int doEndTag() throws JspException {
  		try {
  			long l = Long.parseLong(value);
  			SimpleDateFormat sdf =
				new SimpleDateFormat(pattern);
			pageContext.getOut().print(
				sdf.format(new Date(l)));
		} catch (Exception e) {
			e.printStackTrace();
		}
		return super.doEndTag();
	}


so ... the problem is that after the template is called once with a 
undefined date_reference field, the date/time widget in the backend will 
not work anymore ... instead, the editor will display a simple text field.

.rm



Mathias Lin | SYSVISION wrote:
> Hi Ruben,
> you should post the source code / jsp code directly, otherwise it's hard to
> help.
> Regards, Mathias
> 
> 
> Ruben Malchow-3 wrote:
>>
>>
>> hello list.
>>
>> i am running into a somewhat strange problem. ocms is 7.0.5.
>>
>> i have a field in a schema that is a date. i also have a template that 
>> displays this date as part of the headline of an article. to format 
>> this, i have a little jsp tag that takes a pattern and a long value and 
>> formats tries to format the value according to the pattern. in my 
>> template, this tag is surrounded by a jstl try/catch thing (so if it 
>> doesn't work, the result is just an empty string).
>>
>> now what happens is this: if i call the template with a cotent xml which 
>> doesn't have the date set yet, it displays as expected, so instead of 
>> the date, there is an empty string. BUT: it also breaks the editor. 
>> meaning that when i go back to set the date, the datetime widget is 
>> gone. until i restart the tomcat.
>>
>> any ideas? i have no idea where to start looking ... my tag doesn't even 
>> use any ocms classes, it just instantiates a SimpleDateFormat.
>>
>> .rm
>>
> 
> 
> -----
> Mathias Lin
> SYSVISION Ltd., China
> http://www.sysvision.com