displaytag-user

RE: [displaytag-user] Column attributes and run time expressions

[Farmer, T. <to...@el...>]

I had the same issue - requiring multiple query parameters to be
dynamically added to the link for each row.  I started by using JSTL,
and ran into the same issue that you did.  My eventual solution was to
create table decorators.

=20
Todd

=20
-----Original Message-----
From: dis...@li...
[mailto:dis...@li...] On Behalf Of
vladimir lenin
Sent: Tuesday, April 04, 2006 5:36 PM
To: dis...@li...
Subject: [displaytag-user] Column attributes and run time expressions

As I can only specify one paramId for a column, I am
using a run time expression for the href value. but it
looks like it is evaluated only once. it it not
getting updated by the values from the current object
in the list.
is this the intended behavior. do I have to implement
a table decorator for links?
thank you

__________________________________________________
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RE: [displaytag-user] Column attributes and run time expressions

[Rick H. <ri...@vi...>]

Can you please post some of the code that didn't work?  I'm not 100% clear
on what you guys are trying to do without an illustration, but JSTL or
scriptlet expressions should re-evaluate each iteration.  I use this type
of construct in my code in just about every displaytag table I've got.

Farmer, Todd wrote:
> I had the same issue - requiring multiple query parameters to be
> dynamically added to the link for each row.  I started by using JSTL,
> and ran into the same issue that you did.  My eventual solution was to
> create table decorators.
>
> From: vladimir lenin
> Sent: Tuesday, April 04, 2006 5:36 PM
>
> As I can only specify one paramId for a column, I am
> using a run time expression for the href value. but it
> looks like it is evaluated only once. it it not
> getting updated by the values from the current object
> in the list.
> is this the intended behavior. do I have to implement
> a table decorator for links?
> thank you

-- 
Rick Herrick
ri...@vi...

I haven't got time for inner peace.

"No reasonable definition of reality could be expected to permit
this."--Albert Einstein, Boris Podolsky and Nathan Rosen in 1935

RE: [displaytag-user] Column attributes and run time expressions

[vladimir l. <chi...@ya...>]

I have a map with java beans. ${myID.prop2} is working
fine when it is included in the body of the display
column.

however, column attributes like "href" in which I
included ${myID.prop2} is getting evaluated only once.

it is keeping the values of the first row



<display:table
name="requestScope.someFormBean.someMap"
export="false"
	id="myID" requestURI="some.do" pagesize="25"
sort="list"
	defaultsort="2" excludedParams="*">

	<display:column sortable="true"
href="somethingelse.do?prop2=${myID.prop2}"
		paramId="prop1" paramProperty="prop2" title="prop1">

		${myID.prop1}

	</display:column>


	<display:column sortable="true" title="prop2">

		${myID.prop2}

	</display:column>


</display:table>


--- Rick Herrick <ri...@vi...> wrote:

> Can you please post some of the code that didn't
> work?  I'm not 100% clear
> on what you guys are trying to do without an
> illustration, but JSTL or
> scriptlet expressions should re-evaluate each
> iteration.  I use this type
> of construct in my code in just about every
> displaytag table I've got.
> 
> Farmer, Todd wrote:
> > I had the same issue - requiring multiple query
> parameters to be
> > dynamically added to the link for each row.  I
> started by using JSTL,
> > and ran into the same issue that you did.  My
> eventual solution was to
> > create table decorators.
> >
> > From: vladimir lenin
> > Sent: Tuesday, April 04, 2006 5:36 PM
> >
> > As I can only specify one paramId for a column, I
> am
> > using a run time expression for the href value.
> but it
> > looks like it is evaluated only once. it it not
> > getting updated by the values from the current
> object
> > in the list.
> > is this the intended behavior. do I have to
> implement
> > a table decorator for links?
> > thank you
> 
> -- 
> Rick Herrick
> ri...@vi...
> 
> I haven't got time for inner peace.
> 
> "No reasonable definition of reality could be
> expected to permit
> this."--Albert Einstein, Boris Podolsky and Nathan
> Rosen in 1935
> 
> 
> 
>
-------------------------------------------------------
> This SF.Net email is sponsored by xPML, a
> groundbreaking scripting language
> that extends applications into web and mobile media.
> Attend the live webcast
> and join the prime developer group breaking into
> this new coding territory!
>
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> _______________________________________________
> displaytag-user mailing list
> dis...@li...
>
https://lists.sourceforge.net/lists/listinfo/displaytag-user
> 


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RE: [displaytag-user] Column attributes and run time expressions

[Rick H. <ri...@vi...>]

Oh yeah, that won't work.  This is similar to the problem last week where
someone was including EL conditionals (<c:if>) around the body of the table
to exclude rows where a property met a particular condition.  Basically, the
body of the <display:table> tag is NOT evaluated iteratively, that is, the
<display:column> tags are evaluated once, when the tag is first encountered.
That means any reference to the row item there is lost.

You can however put references to the row item within the body of the
<display:column> tags themselves, since the body of these tags is evaluated
each iteration.  This means that you need to construct the link within the
column body instead of trying to do it through the href attribute.  This
would look like this (some attributes removed for clarity):

<display:table name="someFormBean.someMap" uid="myID">
  <display:column>
    <a href="somethingelse.do?prop2=${myID.prop2}">
      ${myID.prop1}
    </a>
  </display:column>
</display:table>

And actually, looking at it, I think another thing you can do is just leave
the EL off of the URL.  The whole point of that paramId/paramProperty stuff
is to automatically put "property=value" on the provided URL.  So if you
want a URL like somethingelse.do?XXX=valueOfYYY, It's something like:

href="somethingelse.do" paramId="XXX" paramProperty="YYY"

So paramId gets carried over literally as whatever that value is.  I can't
remember though, I always found those param* attributes to be kind of a
pain.  I usually use the <a href> thing directly.

Rick Herrick
ri...@vi...

> -----Original Message-----
> From: dis...@li... [mailto:displaytag-user-
> ad...@li...] On Behalf Of vladimir lenin
> Sent: Wednesday, April 05, 2006 3:56 PM
> To: dis...@li...
> Subject: RE: [displaytag-user] Column attributes and run time expressions
> 
> I have a map with java beans. ${myID.prop2} is working
> fine when it is included in the body of the display
> column.
> 
> however, column attributes like "href" in which I
> included ${myID.prop2} is getting evaluated only once.
> 
> it is keeping the values of the first row
> 
> 
> 
> <display:table
> name="requestScope.someFormBean.someMap"
> export="false"
> 	id="myID" requestURI="some.do" pagesize="25"
> sort="list"
> 	defaultsort="2" excludedParams="*">
> 
> 	<display:column sortable="true"
> href="somethingelse.do?prop2=${myID.prop2}"
> 		paramId="prop1" paramProperty="prop2" title="prop1">
> 
> 		${myID.prop1}
> 
> 	</display:column>
> 
> 
> 	<display:column sortable="true" title="prop2">
> 
> 		${myID.prop2}
> 
> 	</display:column>
> 
> 
> </display:table>
> 
> 
> --- Rick Herrick <ri...@vi...> wrote:
> 
> > Can you please post some of the code that didn't
> > work?  I'm not 100% clear
> > on what you guys are trying to do without an
> > illustration, but JSTL or
> > scriptlet expressions should re-evaluate each
> > iteration.  I use this type
> > of construct in my code in just about every
> > displaytag table I've got.
> >
> > Farmer, Todd wrote:
> > > I had the same issue - requiring multiple query
> > parameters to be
> > > dynamically added to the link for each row.  I
> > started by using JSTL,
> > > and ran into the same issue that you did.  My
> > eventual solution was to
> > > create table decorators.
> > >
> > > From: vladimir lenin
> > > Sent: Tuesday, April 04, 2006 5:36 PM
> > >
> > > As I can only specify one paramId for a column, I
> > am
> > > using a run time expression for the href value.
> > but it
> > > looks like it is evaluated only once. it it not
> > > getting updated by the values from the current
> > object
> > > in the list.
> > > is this the intended behavior. do I have to
> > implement
> > > a table decorator for links?
> > > thank you
> >
> > --
> > Rick Herrick
> > ri...@vi...
> >
> > I haven't got time for inner peace.
> >
> > "No reasonable definition of reality could be
> > expected to permit
> > this."--Albert Einstein, Boris Podolsky and Nathan
> > Rosen in 1935
> >
> >
> >
> >
> -------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a
> > groundbreaking scripting language
> > that extends applications into web and mobile media.
> > Attend the live webcast
> > and join the prime developer group breaking into
> > this new coding territory!
> >
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> > _______________________________________________
> > displaytag-user mailing list
> > dis...@li...
> >
> https://lists.sourceforge.net/lists/listinfo/displaytag-user
> >
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting
> language
> that extends applications into web and mobile media. Attend the live
> webcast
> and join the prime developer group breaking into this new coding
> territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> _______________________________________________
> displaytag-user mailing list
> dis...@li...
> https://lists.sourceforge.net/lists/listinfo/displaytag-user

RE: [displaytag-user] Column attributes and run time expressions

[vladimir l. <chi...@ya...>]

Thank you, Mr.Herrick

1. if I put the anchor tag in the body of the column,
the default sort will not properly work
2. paramid concept works only when you want to send
only one parameter. it does not work with multiple
parameters

If I put anchor tag in the column body, I have to do
external sorting

otherwise I have to use table decirators for forming
links

I do not know if there are any other options

Thanks again

--- Rick Herrick <ri...@vi...> wrote:

> Oh yeah, that won't work.  This is similar to the
> problem last week where
> someone was including EL conditionals (<c:if>)
> around the body of the table
> to exclude rows where a property met a particular
> condition.  Basically, the
> body of the <display:table> tag is NOT evaluated
> iteratively, that is, the
> <display:column> tags are evaluated once, when the
> tag is first encountered.
> That means any reference to the row item there is
> lost.
> 
> You can however put references to the row item
> within the body of the
> <display:column> tags themselves, since the body of
> these tags is evaluated
> each iteration.  This means that you need to
> construct the link within the
> column body instead of trying to do it through the
> href attribute.  This
> would look like this (some attributes removed for
> clarity):
> 
> <display:table name="someFormBean.someMap"
> uid="myID">
>   <display:column>
>     <a href="somethingelse.do?prop2=${myID.prop2}">
>       ${myID.prop1}
>     </a>
>   </display:column>
> </display:table>
> 
> And actually, looking at it, I think another thing
> you can do is just leave
> the EL off of the URL.  The whole point of that
> paramId/paramProperty stuff
> is to automatically put "property=value" on the
> provided URL.  So if you
> want a URL like somethingelse.do?XXX=valueOfYYY,
> It's something like:
> 
> href="somethingelse.do" paramId="XXX"
> paramProperty="YYY"
> 
> So paramId gets carried over literally as whatever
> that value is.  I can't
> remember though, I always found those param*
> attributes to be kind of a
> pain.  I usually use the <a href> thing directly.
> 
> Rick Herrick
> ri...@vi...
> 
> > -----Original Message-----
> > From: dis...@li...
> [mailto:displaytag-user-
> > ad...@li...] On Behalf Of vladimir
> lenin
> > Sent: Wednesday, April 05, 2006 3:56 PM
> > To: dis...@li...
> > Subject: RE: [displaytag-user] Column attributes
> and run time expressions
> > 
> > I have a map with java beans. ${myID.prop2} is
> working
> > fine when it is included in the body of the
> display
> > column.
> > 
> > however, column attributes like "href" in which I
> > included ${myID.prop2} is getting evaluated only
> once.
> > 
> > it is keeping the values of the first row
> > 
> > 
> > 
> > <display:table
> > name="requestScope.someFormBean.someMap"
> > export="false"
> > 	id="myID" requestURI="some.do" pagesize="25"
> > sort="list"
> > 	defaultsort="2" excludedParams="*">
> > 
> > 	<display:column sortable="true"
> > href="somethingelse.do?prop2=${myID.prop2}"
> > 		paramId="prop1" paramProperty="prop2"
> title="prop1">
> > 
> > 		${myID.prop1}
> > 
> > 	</display:column>
> > 
> > 
> > 	<display:column sortable="true" title="prop2">
> > 
> > 		${myID.prop2}
> > 
> > 	</display:column>
> > 
> > 
> > </display:table>
> > 
> > 
> > --- Rick Herrick <ri...@vi...> wrote:
> > 
> > > Can you please post some of the code that didn't
> > > work?  I'm not 100% clear
> > > on what you guys are trying to do without an
> > > illustration, but JSTL or
> > > scriptlet expressions should re-evaluate each
> > > iteration.  I use this type
> > > of construct in my code in just about every
> > > displaytag table I've got.
> > >
> > > Farmer, Todd wrote:
> > > > I had the same issue - requiring multiple
> query
> > > parameters to be
> > > > dynamically added to the link for each row.  I
> > > started by using JSTL,
> > > > and ran into the same issue that you did.  My
> > > eventual solution was to
> > > > create table decorators.
> > > >
> > > > From: vladimir lenin
> > > > Sent: Tuesday, April 04, 2006 5:36 PM
> > > >
> > > > As I can only specify one paramId for a
> column, I
> > > am
> > > > using a run time expression for the href
> value.
> > > but it
> > > > looks like it is evaluated only once. it it
> not
> > > > getting updated by the values from the current
> > > object
> > > > in the list.
> > > > is this the intended behavior. do I have to
> > > implement
> > > > a table decorator for links?
> > > > thank you
> > >
> > > --
> > > Rick Herrick
> > > ri...@vi...
> > >
> > > I haven't got time for inner peace.
> > >
> > > "No reasonable definition of reality could be
> > > expected to permit
> > > this."--Albert Einstein, Boris Podolsky and
> Nathan
> > > Rosen in 1935
> > >
> > >
> > >
> > >
> >
>
-------------------------------------------------------
> > > This SF.Net email is sponsored by xPML, a
> > > groundbreaking scripting language
> > > that extends applications into web and mobile
> media.
> > > Attend the live webcast
> > > and join the prime developer group breaking into
> > > this new coding territory!
> > >
> >
>
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> > > _______________________________________________
> > > displaytag-user mailing list
> > > dis...@li...
> > >
> >
>
https://lists.sourceforge.net/lists/listinfo/displaytag-user
> > >
> > 
> > 
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam
> protection around
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> > 
> > 
> >
>
-------------------------------------------------------
> > This SF.Net email is sponsored by xPML, a
> groundbreaking scripting
> > language
> > that extends applications into web and mobile
> media. Attend the live
> > webcast
> > and join the prime developer group breaking into
> this new coding
> > territory!
> >
>
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> 
=== message truncated ===


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RE: [displaytag-user] Column attributes and run time expressions

[Rick H. <ri...@vi...>]

Re: the paramId thing, yeah, that's another limitation of it.  You only had
a single param in your example, so I just assumed you only had one.  If you
have multiple parameters, that won't work.  That actually why I mostly use
the method I illustrated earlier.

As for sorting, there's the sortProperty attribute.  This specifies the
property on which the column should be sorted.  So what I sent before would
look like this:

<display:table name="someFormBean.someMap" uid="myID">
  <display:column sortProperty="prop2">
    <a href="somethingelse.do?prop2=${myID.prop2}">
      ${myID.prop1}
    </a>
  </display:column>
</display:table>

You'd change sortProperty to whatever you want to sort on, obviously.

HTH.

Rick Herrick
ri...@vi...


> -----Original Message-----
> From: dis...@li... [mailto:displaytag-user-
> ad...@li...] On Behalf Of vladimir lenin
> Sent: Thursday, April 06, 2006 4:16 PM
> To: dis...@li...
> Subject: RE: [displaytag-user] Column attributes and run time expressions
> 
> Thank you, Mr.Herrick
> 
> 1. if I put the anchor tag in the body of the column,
> the default sort will not properly work
> 2. paramid concept works only when you want to send
> only one parameter. it does not work with multiple
> parameters
> 
> If I put anchor tag in the column body, I have to do
> external sorting
> 
> otherwise I have to use table decirators for forming
> links
> 
> I do not know if there are any other options
> 
> Thanks again
> 
> --- Rick Herrick <ri...@vi...> wrote:
> 
> > Oh yeah, that won't work.  This is similar to the
> > problem last week where
> > someone was including EL conditionals (<c:if>)
> > around the body of the table
> > to exclude rows where a property met a particular
> > condition.  Basically, the
> > body of the <display:table> tag is NOT evaluated
> > iteratively, that is, the
> > <display:column> tags are evaluated once, when the
> > tag is first encountered.
> > That means any reference to the row item there is
> > lost.
> >
> > You can however put references to the row item
> > within the body of the
> > <display:column> tags themselves, since the body of
> > these tags is evaluated
> > each iteration.  This means that you need to
> > construct the link within the
> > column body instead of trying to do it through the
> > href attribute.  This
> > would look like this (some attributes removed for
> > clarity):
> >
> > <display:table name="someFormBean.someMap"
> > uid="myID">
> >   <display:column>
> >     <a href="somethingelse.do?prop2=${myID.prop2}">
> >       ${myID.prop1}
> >     </a>
> >   </display:column>
> > </display:table>
> >
> > And actually, looking at it, I think another thing
> > you can do is just leave
> > the EL off of the URL.  The whole point of that
> > paramId/paramProperty stuff
> > is to automatically put "property=value" on the
> > provided URL.  So if you
> > want a URL like somethingelse.do?XXX=valueOfYYY,
> > It's something like:
> >
> > href="somethingelse.do" paramId="XXX"
> > paramProperty="YYY"
> >
> > So paramId gets carried over literally as whatever
> > that value is.  I can't
> > remember though, I always found those param*
> > attributes to be kind of a
> > pain.  I usually use the <a href> thing directly.
> >
> > Rick Herrick
> > ri...@vi...
> >
> > > -----Original Message-----
> > > From: dis...@li...
> > [mailto:displaytag-user-
> > > ad...@li...] On Behalf Of vladimir
> > lenin
> > > Sent: Wednesday, April 05, 2006 3:56 PM
> > > To: dis...@li...
> > > Subject: RE: [displaytag-user] Column attributes
> > and run time expressions
> > >
> > > I have a map with java beans. ${myID.prop2} is
> > working
> > > fine when it is included in the body of the
> > display
> > > column.
> > >
> > > however, column attributes like "href" in which I
> > > included ${myID.prop2} is getting evaluated only
> > once.
> > >
> > > it is keeping the values of the first row
> > >
> > >
> > >
> > > <display:table
> > > name="requestScope.someFormBean.someMap"
> > > export="false"
> > > 	id="myID" requestURI="some.do" pagesize="25"
> > > sort="list"
> > > 	defaultsort="2" excludedParams="*">
> > >
> > > 	<display:column sortable="true"
> > > href="somethingelse.do?prop2=${myID.prop2}"
> > > 		paramId="prop1" paramProperty="prop2"
> > title="prop1">
> > >
> > > 		${myID.prop1}
> > >
> > > 	</display:column>
> > >
> > >
> > > 	<display:column sortable="true" title="prop2">
> > >
> > > 		${myID.prop2}
> > >
> > > 	</display:column>
> > >
> > >
> > > </display:table>
> > >
> > >
> > > --- Rick Herrick <ri...@vi...> wrote:
> > >
> > > > Can you please post some of the code that didn't
> > > > work?  I'm not 100% clear
> > > > on what you guys are trying to do without an
> > > > illustration, but JSTL or
> > > > scriptlet expressions should re-evaluate each
> > > > iteration.  I use this type
> > > > of construct in my code in just about every
> > > > displaytag table I've got.
> > > >
> > > > Farmer, Todd wrote:
> > > > > I had the same issue - requiring multiple
> > query
> > > > parameters to be
> > > > > dynamically added to the link for each row.  I
> > > > started by using JSTL,
> > > > > and ran into the same issue that you did.  My
> > > > eventual solution was to
> > > > > create table decorators.
> > > > >
> > > > > From: vladimir lenin
> > > > > Sent: Tuesday, April 04, 2006 5:36 PM
> > > > >
> > > > > As I can only specify one paramId for a
> > column, I
> > > > am
> > > > > using a run time expression for the href
> > value.
> > > > but it
> > > > > looks like it is evaluated only once. it it
> > not
> > > > > getting updated by the values from the current
> > > > object
> > > > > in the list.
> > > > > is this the intended behavior. do I have to
> > > > implement
> > > > > a table decorator for links?
> > > > > thank you
> > > >
> > > > --
> > > > Rick Herrick
> > > > ri...@vi...
> > > >
> > > > I haven't got time for inner peace.
> > > >
> > > > "No reasonable definition of reality could be
> > > > expected to permit
> > > > this."--Albert Einstein, Boris Podolsky and
> > Nathan
> > > > Rosen in 1935
> > > >
> > > >
> > > >
> > > >
> > >
> >
> -------------------------------------------------------
> > > > This SF.Net email is sponsored by xPML, a
> > > > groundbreaking scripting language
> > > > that extends applications into web and mobile
> > media.
> > > > Attend the live webcast
> > > > and join the prime developer group breaking into
> > > > this new coding territory!
> > > >
> > >
> >
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> > > > _______________________________________________
> > > > displaytag-user mailing list
> > > > dis...@li...
> > > >
> > >
> >
> https://lists.sourceforge.net/lists/listinfo/displaytag-user
> > > >
> > >
> > >
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