The current row used by displaytag is pushed under the name set in
uid, so you could do this:
<display:table name="goalToAchieve.entries" requestURI="" uid="thisGoal">
<display:column>
<a href="<s:url action='DeleteEntryForm' escapeAmp="false">
<s:param name="date" value="#attr.thisGoal.mark" />
</s:url>
">Remove</a>
</display:column>
musachy
On Mon, Jul 13, 2009 at 11:17 AM, Dimitrios
Christodoulakis<dimi....@gmail.com> wrote:
> Thanks. So, if I wanted to access a particular property (say this
> property is called mark) of an "entry" object which I am iterating
> over, I would do something like the following:
>
> <display:table name="goalToAchieve.entries" requestURI="" uid="thisGoal">
> <display:column property="entry" />
> <display:column property="date" sortable="true"
> defaultorder="ascending" title="TimeStamp"/>
> <display:column property="mark" />
> <display:column>
> <a href="<s:url action='DeleteEntryForm' escapeAmp="false">
> <s:param name="name" value="%{goalToAchieve.owner.fullName}" />
> <s:param name="id" value="%{goalToAchieve.id}" />
> <s:param name="date" value="#attr.entry.mark" />
> </s:url>
> ">Remove</a>
> </display:column>
>
> So, I could pass mark as a url param via s:url within the display tag?
>
> Thanks for the information!
>
> On Mon, Jul 13, 2009 at 1:08 PM, Musachy Barroso<musa...@gmail.com> wrote:
>> Assuming that each entry is named "entry" by displayTag, you can
>> access it using "#attr.entry" (or "#attr['entry']") to access it from
>> the S2 tags.
>>
>> musachy
>>
>> On Mon, Jul 13, 2009 at 10:27 AM, Dimitrios
>> Christodoulakis<dimi....@gmail.com> wrote:
>>> Yes, that is exactly the case, hmm.. Although, how is the
>>> display:table tag finds the collection in the first place?
>>>
>>> Supposedly the display has some way of reaching the valuestack, it can
>>> even resolve the deeper notation <display:table
>>> name="goalToAchieve.entries"
>>>
>>> However, I will switch back to s:iterator to test if the syntax
>>> suggested will work. I mainly used the display tag as a quick way to
>>> sort the collection, but if I can't access the properties of the
>>> objects I am iterating over, it isn't of much use in this case
>>>
>>> On Mon, Jul 13, 2009 at 12:20 PM, Greg Lindholm<greg.lindh...@gmail.com>
>>> wrote:
>>>> OK, I see the problem now... you are not using <s:iterator> to go thru the
>>>> entries, you are using <display:table>.
>>>>
>>>> The syntax suggested will not work since <display:table> does not know
>>>> anything about the value stack.The <s:param name="mark" value="%{mark}" />
>>>> uses the value stack to resolve 'mark' which will not work here, you will
>>>> need to replace %{mark} with the right syntax to work with <display:table>
>>>> iterator.
>>>>
>>>> And I don't know anything about <display:table> so you will need to look up
>>>> how to access the properties of the entities you are iterating over so as
>>>> to
>>>> build the URL.
>>>>
>>>>
>>>> On Mon, Jul 13, 2009 at 12:28 PM, Dimitrios Christodoulakis <
>>>> dimi....@gmail.com> wrote:
>>>>
>>>>> I made the changes, but the view source indicates that the param
>>>>> "mark" is not passed.
>>>>>
>>>>> The url linked is formed like this:
>>>>>
>>>>> /secure/DeleteEntryForm.action?name=firstName+lastName&id=1
>>>>>
>>>>> The name and id params are fields of the parent object, the one
>>>>> containing the collection.
>>>>>
>>>>> Actually, I tried with all fields taken from the collection object,
>>>>> like entry, and date but none gets passed as a param. Only properties
>>>>> exposed by the parent object, goalToAchieve are passed, shouldn't I be
>>>>> able to point to a field within a collection object too?
>>>>>
>>>>> It looks like individual collection object properties can be viewed
>>>>> using the iterator/display, but cannot be "captured" or passed as
>>>>> parameters for any other uses... unless I am missing something, or
>>>>> doing something wrong.
>>>>>
>>>>>
>>>>> On Mon, Jul 13, 2009 at 10:50 AM, Greg Lindholm<greg.lindh...@gmail.com>
>>>>> wrote:
>>>>> > Looks like you need to change entry.mark to just mark and remove the
>>>>> > <s:property value="%{entry}"/>. Also you probably don't need to pass
>>>>> > both
>>>>> > the name and id of the parent object.
>>>>> >
>>>>> > <a href="<s:url action='DeleteEntryForm' var="entry" escapeAmp="false">
>>>>> > <s:param name="id" value="%{goalToAchieve.id}" />
>>>>> > <s:param name="mark" value="%{mark}" />
>>>>> > </s:url>
>>>>> > ">Remove</a>
>>>>> >
>>>>> >
>>>>> > On Mon, Jul 13, 2009 at 10:48 AM, Dimitrios Christodoulakis <
>>>>> > dimi....@gmail.com> wrote:
>>>>> >
>>>>> >> Thanks for letting me know. Alright, so:
>>>>> >>
>>>>> >> This is the parent class:
>>>>> >>
>>>>> >> @Entity
>>>>> >> public class GoalToAchieve {
>>>>> >> @Id @GeneratedValue
>>>>> >> private Long id;
>>>>> >>
>>>>> >> @org.hibernate.annotations.CollectionOfElements
>>>>> >> @JoinTable (name="GoalToAchieve_entry",
>>>>> >> joincolum...@joincolumn(name="goalToAchieve_id"))
>>>>> >> private Set<JournalEntry> entries = new HashSet<JournalEntry>();
>>>>> >>
>>>>> >> public Set<JournalEntry> getEntries() {
>>>>> >> return entries;
>>>>> >> }
>>>>> >> public void setEntries(SortedSet<JournalEntry> entries) {
>>>>> >> this.entries = entries;
>>>>> >> }
>>>>> >>
>>>>> >> public void addEntry(JournalEntry newEntry){
>>>>> >> entries.add(newEntry);
>>>>> >> }
>>>>> >>
>>>>> >> public void deleteEntry(JournalEntry entry){
>>>>> >> entries.remove(entry);
>>>>> >> }
>>>>> >> ..plus some other standard fields with getters and setters
>>>>> >>
>>>>> >> This is the child-class:
>>>>> >>
>>>>> >> @Embeddable
>>>>> >> public class JournalEntry {
>>>>> >> @org.hibernate.annotations.Parent
>>>>> >> private GoalToAchieve goalToAchieve;
>>>>> >>
>>>>> >> @Column
>>>>> >> private Long mark;
>>>>> >> public Long getMark() {
>>>>> >> return mark;
>>>>> >> }
>>>>> >> public void setMark(long mark){
>>>>> >> this.mark = mark;
>>>>> >> }
>>>>> >>
>>>>> >> @Column(length = 255, nullable = false)
>>>>> >> private String entry;
>>>>> >>
>>>>> >> @Temporal(TemporalType.TIMESTAMP)
>>>>> >> @Column(nullable = false, updatable = false)
>>>>> >> private Date insertDate = new Date();
>>>>> >>
>>>>> >> ..plus the rest getters and setters
>>>>> >>
>>>>> >> And this this the jsp part where I display the collection:
>>>>> >>
>>>>> >> <s:if test="goalToAchieve.entries.size > 0">
>>>>> >> <display:table name="goalToAchieve.entries" requestURI=""
>>>>> uid="thisGoal">
>>>>> >> <display:column property="entry" />
>>>>> >> <display:column property="date" sortable="true"
>>>>> >> defaultorder="ascending" title="TimeStamp"/>
>>>>> >> <display:column property="mark" />
>>>>> >> <display:column>
>>>>> >> <a href="<s:url action='UpdateEntryForm'>
>>>>> >> <s:param name="name" value="%{goalToAchieve.owner.fullName}" />
>>>>> >> <s:param name="mark" value="#mark" />
>>>>> >> </s:url>
>>>>> >> ">Edit</a>
>>>>> >> </display:column>
>>>>> >> <display:column>
>>>>> >> <a href="<s:url action='DeleteEntryForm' var="entry" escapeAmp="false">
>>>>> >> <s:param name="name" value="%{goalToAchieve.owner.fullName}" />
>>>>> >> <s:param name="id" value="%{goalToAchieve.id}" />
>>>>> >> <s:param name="mark" value="entry.mark" />
>>>>> >> <s:property value="%{entry}"/>
>>>>> >> </s:url>
>>>>> >> ">Remove</a>
>>>>> >> </display:column>
>>>>> >> </display:table>
>>>>> >> </s:if>
>>>>> >>
>>>>> >> ..and the delete action, which should take an entry reference and
>>>>> >> remove it from the collections looks like this:
>>>>> >>
>>>>> >> public class DeleteEntry extends ActionSupport{
>>>>> >> public String execute(){
>>>>> >> goalToAchieve.deleteEntry(entry);
>>>>> >>
>>>>> >> return SUCCESS;
>>>>> >> }
>>>>> >>
>>>>> >> private JournalEntry entry;
>>>>> >> private GoalToAchieve goalToAchieve;
>>>>> >> private long id;
>>>>> >>
>>>>> >> ... + getters and setters
>>>>> >>
>>>>> >> I guess right now, my problem has become how to pass a parameter
>>>>> >> referring to en entry (the mark field) to the delete action. Next, I
>>>>> >> would do a lookup within the action to find the entry object and
>>>>> >> remove it from the parent object collection, by calling
>>>>> >> deleteEntry(JournalEntry entry)
>>>>> >>
>>>>> >> On Mon, Jul 13, 2009 at 9:16 AM, Greg Lindholm<greg.lindh...@gmail.com>
>>>>> >> wrote:
>>>>> >> > You are not providing enough information for anyone to help you.
>>>>> >> > Since
>>>>> >> you
>>>>> >> > have changed your object and the jsp you had better include them with
>>>>> any
>>>>> >> > request.
>>>>> >> >
>>>>> >> >
>>>>> >> > On Mon, Jul 13, 2009 at 9:51 AM, Dimitrios Christodoulakis <
>>>>> >> > dimi....@gmail.com> wrote:
>>>>> >> >
>>>>> >> >> Yes, that is a great suggestion actually. What I did was to add a
>>>>> >> >> new
>>>>> >> >> field based
>>>>> >> >> System.currentTimeMillis(), but the problem is adding it as a url
>>>>> >> >> parameter.
>>>>> >> >>
>>>>> >> >> For example, I am trying to add it as a url parameter below:
>>>>> >> >>
>>>>> >> >> <a href="<s:url action='UpdateEntryForm'>
>>>>> >> >> <s:param name="name" value="%{goalToAchieve.owner.fullName}" />
>>>>> >> >> <s:param name="mark" value="%{mark}" />
>>>>> >> >> </s:url>
>>>>> >> >> ">Edit</a>
>>>>> >> >>
>>>>> >> >> But, the only param passed is the fullName. The mark is not added to
>>>>> >> >> the url string. I think this is because the only object available on
>>>>> >> >> the valuestack is goalToAchieve, and using deeper notation I can
>>>>> >> >> reference as deep as the "entries" collection. But not to fields of
>>>>> >> >> each entry object. In other words, the display or iterator help me
>>>>> >> >> view the collection objects, but not extract and use any of their
>>>>> >> >> fields... I am not sure why this is happening, or if I am doing
>>>>> >> >> something wrong.
>>>>> >> >>
>>>>> >> >
>>>>> >>
>>>>> >> ---------------------------------------------------------------------
>>>>> >> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>>>>> >> For additional commands, e-mail: user-h...@struts.apache.org
>>>>> >>
>>>>> >>
>>>>> >
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>>>>> For additional commands, e-mail: user-h...@struts.apache.org
>>>>>
>>>>>
>>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>>> For additional commands, e-mail: user-h...@struts.apache.org
>>>
>>>
>>
>>
>>
>> --
>> "Hey you! Would you help me to carry the stone?" Pink Floyd
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
>> For additional commands, e-mail: user-h...@struts.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> For additional commands, e-mail: user-h...@struts.apache.org
>
>
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
For additional commands, e-mail: user-h...@struts.apache.org
