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
