On Sat, 2003-06-28 at 19:00, Jason Lea wrote:
> Here are some ideas, I haven't tested them so they could be horribly
> wrong :)
>
> The html-el:text tag are just like the html:text tag, but I can evaluate
> EL expressions.
>
> What you want to generate is something like this:
>
> someCode: <input type="text" name="fooMap['aCode'].someCode"
> value="aCode"><br>
>
> because when this is submitted Struts will do something like:
> formBean.getFooMap().get("aCode").setSomeCode("a new value")
Thanks Jason. I'll have to try some of this. The problem with the above
though is what do i substitute in for "aCode" that represents "key". The
keys can be different obviously as the iterations take place.
>
> So then looking at the html:text tag documentation we see for 'property':
>
> "Name of this input field, and the name of the corresponding bean
> property if value is not specified. The corresponding bean property (if
> any) must be of type String."
>
> This means the value of 'property' will be the name of the text input
> field - this is the bit we want to become name="fooMap['aCode'].someCode".
>
> The other importent part is the 'indexed' property:
>
> "Valid only inside of logic:iterate tag.
Actually this seemed to also work within the JSTL foreach loop.
> If true then name of the html
> tag will be rendered as "id[34].propertyName". Number in brackets will
> be generated for every iteration and taken from ancestor logic:iterate tag."
>
> You are using JSTL and have not created a logic:iterate tag so the index
> isn't going to be generated for you. You could switch to using
> logic:iterate and I think the tags figure out what to call themselves eg
>
> <html:form action="....">
> <logic:iterate id="beanInMap" name="fooMap">
> someCode: <html-el:text name="beanInMap"
> property="deptCode" indexed="true"/><br>
> </logic:iterate>
> </html:form>
I tried the above but it complained that it couldn't find my map (fooMap
in the above example).
>
> or use the <nested:*> tags, which would be something like:
>
> <nested:form action="....">
> <nested:iterate name="fooMap">
> someCode: <nested:text property="deptCode" /><br>
> </nested:iterate>
> </html-el:form>
>
> If you want to use JSTL, you probably have to generate the property name
> yourself:
>
> <html:form action="....">
> <c:forEach var="beanInMap" items="${formBean.fooMap}">
> someCode: <html-el:text
> property="fooMap['${beanInMap.someCode}'].someCode" /><br>
> someDescrip: <html-el:text
> property="fooMap['${beanInMap.someDescrip}'].someDescrip" /><br>
> <br>
> </c:forEach>
> </html:form>
With the above I end up with the error:
org.apache.jasper.JasperException: An error occurred while evaluating
custom action attribute "property" with value
"departments['${beanInMap.deptCode}'].deptCode": Unable to find a value
for "deptCode" in object of class "java.util.HashMap$Entry" using
operator "." (null)
the syntax looks like:
<c:forEach var="beanInMap" items="${employeeForm.departments}">
Code:
<html:text property="departments['${beanInMap.deptCode}'].deptCode" />
<br>
Name:
<html:text property="departments['${beanInMap.deptName}'].deptName" />
<br>
<br>
</c:forEach>
I've tried all kinds of other combos also and still stumped.
Thanks for the help so far.
>
> Rick Reumann wrote:
> > Ok this has me stumped...
> >
> > the down and dirty:
> >
> > formBean has HashMap called fooMap
> >
> > fooMap has keys that bring back beans of type BarBean
> >
> > BarBean has properties someCode , someDescrip
> >
> > Now I want to iterate over this map and create the properties based on
> > the properties in BarBean and be able to update this form which will
> > then update the underlying BarBeans in the map.
> >
> > (Ignore the part that I know that's a hassle about the reset method and
> > making sure Map exist there).
> >
> >
> > <c:forEach var="beanInMap" items="${formBean.fooMap}">
> >
> > someCode: <html-el:text property="????????"/><br>
> > someDescrip: <html-el:text property="????????"/><br>
> > <br>
> >
> > </c:forEach>
> >
> >
> > the text will display fine in the form with:
> >
> > someCode: <html-el:text name=beanInMap" property="beanInMap.deptCode" />
> >
> > but when the form submits all the bean property values are null ( in the
> > reset if it matters for testing i'm just creating a few maps with empty
> > BarBeans in the map).
> >
> > I'm stumped.. any help much appreciated.
> >
>
>
>
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