Re: JSTL- el - nested beans from a map used in a form?
I don't think you have defined your taglib at the top
of the jsp. Your html-el should have changed when you
look at the source..
sandeep
--- Rick Reumann [EMAIL PROTECTED] wrote:
On Sat, 2003-06-28 at 13:51, Dan Tran wrote:
see this link
http://www.strutskickstart.com/IndexedPropertiesandValidation.ppt
Thanks Dan. I looked at the presentation above, but
it's not helping me
much. I probably do still need the indexed=true to
make the properties
indexed, but I still don't see how this is going to
get them populated
in the correct bean and loaded back into the map?
Adding indexed=true
doesn't seem to help.
-Dan
- Original Message -
From: Rick Reumann [EMAIL PROTECTED]
To: Struts Users Mailing List
[EMAIL PROTECTED]
Sent: Saturday, June 28, 2003 9:35 AM
Subject: JSTL- el - nested beans from a map used
in a form?
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=${formBean.fooMap}
someCode: html-el:text
property=/br
someDescrip: html-el:text
property=/br
br
/c:forEach
the text will display fine in the form with:
someCode: html-el:text name=beanInMap
property=beanInMap.deptCode /
but when the form submits all the bean property
values are null ( in the
reset if it matters for testing i'm just
creating a few maps with empty
BarBeans in the map).
I'm stumped.. any help much appreciated.
--
Rick
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JSTL- el - nested beans from a map used in a form?
Ok this has me stumped...
the down and dirty:
formBean has HashMap called fooMap
fooMap has keys that bring back beans of type BarBean
BarBean has properties someCode , someDescrip
Now I want to iterate over this map and create the properties based on
the properties in BarBean and be able to update this form which will
then update the underlying BarBeans in the map.
(Ignore the part that I know that's a hassle about the reset method and
making sure Map exist there).
c:forEach var=beanInMap items=${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.
--
Rick
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Re: JSTL- el - nested beans from a map used in a form?
see this link
http://www.strutskickstart.com/IndexedPropertiesandValidation.ppt
-Dan
- Original Message -
From: Rick Reumann [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Saturday, June 28, 2003 9:35 AM
Subject: JSTL- el - nested beans from a map used in a form?
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=${formBean.fooMap}
someCode: html-el:text property=/br
someDescrip: html-el:text property=/br
br
/c:forEach
the text will display fine in the form with:
someCode: html-el:text name=beanInMap property=beanInMap.deptCode /
but when the form submits all the bean property values are null ( in the
reset if it matters for testing i'm just creating a few maps with empty
BarBeans in the map).
I'm stumped.. any help much appreciated.
--
Rick
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: JSTL- el - nested beans from a map used in a form?
On Sat, 2003-06-28 at 13:51, Dan Tran wrote:
see this link
http://www.strutskickstart.com/IndexedPropertiesandValidation.ppt
Thanks Dan. I looked at the presentation above, but it's not helping me
much. I probably do still need the indexed=true to make the properties
indexed, but I still don't see how this is going to get them populated
in the correct bean and loaded back into the map? Adding indexed=true
doesn't seem to help.
-Dan
- Original Message -
From: Rick Reumann [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Saturday, June 28, 2003 9:35 AM
Subject: JSTL- el - nested beans from a map used in a form?
Ok this has me stumped...
the down and dirty:
formBean has HashMap called fooMap
fooMap has keys that bring back beans of type BarBean
BarBean has properties someCode , someDescrip
Now I want to iterate over this map and create the properties based on
the properties in BarBean and be able to update this form which will
then update the underlying BarBeans in the map.
(Ignore the part that I know that's a hassle about the reset method and
making sure Map exist there).
c:forEach var=beanInMap items=${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.
--
Rick
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: JSTL- el - nested beans from a map used in a form?
Hi Rick,
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=aCodebr
because when this is submitted Struts will do something like:
formBean.getFooMap().get(aCode).setSomeCode(a new value)
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. 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
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['${beanInMap.someDescrip}'].someDescrip /br
br
/c:forEach
/html:form
Rick Reumann wrote:
Ok this has me stumped...
the down and dirty:
formBean has HashMap called fooMap
fooMap has keys that bring back beans of type BarBean
BarBean has properties someCode , someDescrip
Now I want to iterate over this map and create the properties based on
the properties in BarBean and be able to update this form which will
then update the underlying BarBeans in the map.
(Ignore the part that I know that's a hassle about the reset method and
making sure Map exist there).
c:forEach var=beanInMap items=${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.
--
Jason Lea
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Re: JSTL- el - nested beans from a map used in a form?
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=aCodebr
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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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: JSTL- el - nested beans from a map used in a form?
Hi Rick,
Rick Reumann wrote:
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=aCodebr
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).
Are you using the html:form tag? All of these tags should be inside one
so they know what formBean to use.
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)
Ahh, yes. That now triggers something I read a while ago. When JSTL
gets something out of a map it will be of the type java.util.Map.Entry
so perhaps try
c:forEach var=beanInMap items=${employeeForm.departments}
Code: html-el:text
property=departments['${beanInMap.key}'].deptCode /
br
Name: html-el:text
property=departments['${beanInMap.key}'].deptName /
br
br
/c:forEach
You will have to use the html-el:text to evaluate the ${beanInMap.key}
(at least I hope it tries to evaluate it that way). If you use
html:text then it will just treat it as text, essentially looking up
the departments map with '${beanInMap.key}' instead of the actual key.
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.
