Well though this question is duplicated somewhat, I have searched over the net still couldn't find the exact result what i want. In my case im developing a project in JSF using Primefaces which has CRUD functionality. i have more than 3k records in p:dataTable. If i want to update selected 5 records, i can only update the whole dataTable(takes much time).
Scenario:
1) select the records in Datatable
2) click p:commandButton to perform business logic and will provide the result for selected records.
(In p:commandButton i used datatable updation)
Note:
I can only forced to use Primefaces. (I found omniFaces has the solution but i shouldn't use)
Pls help me out!
PrimeFaces will allow you to update component based on styleClass, using PrimeFacesSelectors(PFS).
update="#(.mystyle)"
You can use this to serve your purpose of updating particular row of datatable.
Here is the strategy:
1. Set unique rowKey as styleClass to each of columns for every row.
2. Use that rowKey at PFS for your update attribute.
Here is a short code snippet:
<p:dataTable var="mov" value="#{repeatUIBean.mList}" ro>
<p:column headerText="mov Name">
<h:outputText styleClass="#{mov.uniqueId}" value="#{mov.name}"/>
</p:column>
<p:column headerText="mov Release Year">
<h:outputText styleClass="#{mov.uniqueId}" value="#{mov.year}"/>
</p:column>
<p:column headerText="Edit mov">
<p:commandButton value="Edit" update="#(.#{mov.uniqueId})"/>
</p:column>
</p:dataTable>
Related
Im trying to present my data from a mysql Database in a Datatable, and its all working, now i was trying to include a filter and sorting functionality, but when I test it and press the sorting arrows, nothing happens, only when I filter the datatable first, and then everything works fine.
I tried it with the primeface Attributes filterBy and sortBy, and because of the existing functionality I think it has something to do with a update-Problem
<p:dataTable id="test3" scrollable="true" scrollHeight="150" var="Foo" value="#{Foo.bar}">
<p:column headerText="#{msg['default-description-key']}"
sortBy="#{Foo.keyString}"
filterBy="#{Foo.keyString}">
<p:outputLabel value="#{Foo.keyString}"
style="float:center"/>
</p:column>
<p:column headerText="#{msg['default-description-count']}"
sortBy="#{Foo.count}" filterBy="#{Foo.count}">
<p:outputLabel value="#{Foo.count}"
style="float:center"/>
</p:column>
<p:column headerText="#{msg['default-description-register.key']}">
<p:commandLink value="#{msg['default-description-
register.key.link']}" action="#{Foo.bar(Foo.keyString)}"/>
</p:column>
</p:dataTable>
I want to be able to sort the datatable without the need of filtering it before
Create a separate list in your bean (don't forget getter and setter) and link it to the attribute filteredValue in the p:dataTable component
Place the table inside h:form
Use h:outputText instead of p:outputLabel
I'm working on a PrimeFaces project, where I choose to use a p:DataTable inside a p:DataGrid. The DataTable has the selectionMode attribute set to "multiple". I have a button on the page and when I click on it, I want to get all the selected checkboxes inside the various generated tables. All the checkboxes bring the same type of information (they are in different tables because of an information grouping scheme I use in the project).
Since I have multiple DataTables in the final rendered page, how can I get the selected checkboxes? I tried using the selection="#{myBean.selectedOptions}" attribute of the DataTable, but it seems to get just one of the generated tables' selected options (aparently the first one). What can I do to get the selected options of all tables generated by the p:DataGrid? Javascript? Is there any point I'm missing in the DataTable behavior?
(Well.. I don`t know whether I was able to make myself clear enough - English is not my native language).
[edited]
More information:
The number o DataTables generated is variable
I tried using the jsf visit method to traverse the user interface component view as shown here, looking for all checkboxes inside the DataGrid, but it couldn't find any of the checkboxes (I printed out to the console all the elements found). I think it's because the checkboxes are encapsulated in DataTable component. This made me think about not using the selectionMode="multiple" and, instead, manually add the checkboxes and a hidden input element for each one so I can find the checkboxes (or the "input hidden") using the visit method. The sad part of this aproach is that I'd have to stop using some good stuff of the DataTable selectionMode="multiple" feature, like hilighting the row if the corresponding checkbox is checked, and the ready to use "check all" checkbox it automatically put in the header of the ckeckboxes column.
I tried using a nested List in the selection attribute, but it didn't work. The main idea was using something like selection="#{bean.myListOfLists.get(t.counter)}". The "counter" variable is taken from the very object that is used to fulfill the current row of the DataTable (represented by the t variable in the attribute var="t"). The DataTable seems to not accept this approach. It doesn`t fulfill the nested lists.
I tried using the above approch with a modification: instead of a list of lists, a build a new class "B" and made a list of B (selection="#{bean.myListOf_B_Objects.get(t.counter).listInsideBObject}"). The result is simliar to the last approach: none of the lists inside the B objects were fulfilled.
Below there is a simplified view of what I did (more similar to the last case, but it's just to get the big picture)
<p:dataGrid var="gridCellContent"
value="#{myBean.dataGridContent}"
layout="grid" id="id01" columns="3"">
<p:dataTable var="something"
value="#{gridCellContent.listOfSomething}"
rowKey="#{something.id}"
selection="#{myBean.listOf_B_Objects.get(gridCellContent.counter).listInside_B_Object}">
<p:column selectionMode="multiple" />
<p:column>
<h:outputText value="#{something.sometext}" />
</p:column>
</p:dataTable>
<f:facet name="footer">
<p:commandButton id="btnSave" value="Save"
actionListener="#{myBean.btnSave}"/>
</f:facet>
</p:dataGrid>
[edited 2] Following #JaqenH'ghar's sugestion I tried out the modifications below, which unfortunately still din't work:
<p:dataGrid var="gridCellContent"
value="#{myBean.dataGridContent}"
layout="grid" id="id01" columns="3"
rowIndexVar="count">
<p:dataTable var="something"
value="#{gridCellContent.listOfSomething}"
rowKey="#{something.id}"
selection="#{myBean.listOfLists.get(count)}">
<p:column selectionMode="multiple" />
<p:column>
<h:outputText value="#{something.sometext}" />
</p:column>
</p:dataTable>
<f:facet name="footer">
<p:commandButton id="btnSave" value="Save"
actionListener="#{myBean.btnSave}"/>
</f:facet>
</p:dataGrid>
And for myBean:
#ManagedBean
public class MyBean {
...
private List<List<Something>> listOfLists = new ArrayList<List<Something>>();
public List<List<Something>> getListOfLists(){
this.listOfLists.add(new ArrayList<Something>());
return this.listOfLists;
}
public void setListOfLists(List<Something> listOfSomething) {
this.listOfLists.add(listOfSomething);
}
...
}
I'm using <p:dataTable> to show the values of my files. Inside of each file is a list of metadates. I want to show each metadate as an own column beside the other columns of the file. (I excluded the other columns to make the code more readable).
So, my problem is, that with the <p:dataList> it does not show the columns. The name of the meta is the same in every metadata, if someone believes this to be the problem.
I already tried to use <p:dataTable> instead of <p:dataList>, but as my customer originally wanted to have the metadata shown as own column this would not be my preferred way, but on the other hand it is working.
<p:dataTable id="fileList" var="f" value="#{reader.files}" rendered="#{reader.showFileTable()}">
<p:dataList value="#{f.meta}" var="meta1">
<p:column>
#{meta1.value}
</p:column>
</p:dataList>
<p:column headerText="Metadaten">
<p:dataTable value="#{f.meta}" var="meta">
<p:column headerText="#{meta.name}">
#{meta.value}
</p:column>
</p:dataTable>
</p:column>
</p:dataTable>
I am really grateful for any help, how I could make the code work so that each metadate has it's own column in the fileList-dataTable.
P.S: I already tried c:forEach and ui:repeat which also didn't work.
P.P.S: I forgot to mention, that my customer sometimes don't want to see specific metadates, so it would be very nice when it is possible to do this with the suggested solution.
You can build columns dynamically in primefaces by using the <p:columns> tag see the vdl
check the primefaces showcase for an example
Suppose you have this code:
<p:dataList id="fileList" var="f" value="#{reader.files}">
<p:dataTable value="#{f.listItems}" var="meta1">
<p:column>#{meta1.value}</p:column>
<p:columns value="#{meta1.listItems}">...</p:columns>
</p:dataTable>
</p:dataList>
Dynamic columns in nested dataTable are not generated: it seems p:columns cannot refer var like "f" and "meta1".
I can understand "meta1" is not visible, because it's producing header's table, but I really can't understand why "f" is not visible at that time.
Any idea? Thanks.
i have a list of billable services per client and i'm trying to build a table where the user can select which ones shall actually be billed:
<p:dataList value="#{billController.billings}" var="billings">
<p:dataTable value='#{billings.billablesDataModel}' var='item' selection="#{billings.toBill}">
<f:facet name="header">
<h:outputText value="#{billings.client.id}" />
</f:facet>
[...]
</p:dataTable>
</p:dataList>
the problem is, that all the dataTables are rendered with the same ID attribute (j_idt9:j_idt13:0:j_idt14) which is automatically assigned by JSF. i'm suspecting this is causing that the selection doesn't work. (the backing bean billings.toBill is not updated/stays empty.)
i was trying to set the ID attribute of the dataTable manually like this:
<p:dataTable id="#{billings.client.id}" ...>
however, i get the following error:
java.lang.IllegalArgumentException: Empty id attribute is not allowed
(#{billings.client.id} is definitely set to the unique client's ID as i get the right output from an h:outputText for debug purposes.)
can you help me fixing this?
i'm using JSF Mojarra 2.1.1 and PrimeFaces 3.2 on a Tomcat 6.
You need to use p:column for content of datalist as documented in user's guide.
What if you loop over billController.billings via ui:repeat and not via p:dataList:
<ui:repeat var="billings" value="#{billController.billings}">
<p:dataTable value="#{billings.billablesDataModel}" var="item" selection="#{billings.toBill}">
[...]
</p:dataTable>
</ui:repeat>
i am using facelets jsf 2.0 with primefaces 3.0.M2 component library.
i am trying to achieve dynamic numbers of rows including iput fields that are filled when a datatable selection occurs.
whenever a selection is made the dynamic rows generated correctly with input fields but after the first selection for following selections dynamic row count changes correctly but the input fields does not update and keeps showing inputs from the first selection.
here is how i iterate list in facelet;
<ui:repeat value="#{goalEntranceBean.selectedCard.parameterList}" var="prmBean" >
<li><h:outputText value="#{prmBean.lookUp.value}"/></li>
<li>
<h:outputText value="Weight:"/>
<p:inputText id="wx" required="true" value="#{prmBean.weight}">
</p:inputText>
<h:outputText value="Percent:"/>
<p:inputText required="true" value="#{prmBean.percent}">
</p:inputText>
</li>
</ui:repeat>
my bean where i get the list of cards and set the selectedCard with rowSelect event in datatable.
#ManagedBean(name = "goalEntranceBean")
#ViewScoped
public class GoalEntranceAction implements Serializable {
private List<ScoreCard> personalCards = new ArrayList<ScoreCard>();
private ScoreCard selectedCard = new ScoreCard();
......
}
when i checked in debug mode i can see the true list but in screen the elements does not change.
This is a common problem (gets asked every couple of days). To make long story short, inputs inside ui:repeat do not work, period.
It is a problem with JSF, a long standing, famous one. Maybe it will be fixed. Maybe not, it seems that no one really cares (I mean - an input? in a... ui:repeat? such crazy scenario!).
A quick-fix is to use a h:dataTable, possibly ungodly abused with css to make it look like a list. A long-fix is to use some iterator from a different library. Primefaces has an element that should work that renders an unordered list.
thanks for your replies. Sorry for forget sharing the solution.
As i mentioned above i have primefaces datatable.
On row selection event i render datatable and want to update the cells of that datatable.
USING p:inputtext easily solved my problem. Now i can change the data on screen and i can see the values after update operation on screen. I don't understand the reason but it works.
<p:dataTable var="orgPrmBean"
value="#{scoreCardOperationsBean.selectedCard.orgParameterList}"
emptyMessage="#{labels.norecord}"
rowKey="#{orgPrmBean.id}"
>
<p:columnGroup type="header">
<p:row>
<p:column headerText="Parameters" colspan="3" style="text-align:left;width:480;"/>
</p:row>
</p:columnGroup>
<p:column style="text-align:left;width:200px;">
<h:outputText value="#{orgPrmBean.info}"/>
</p:column>
<p:column style="text-align:left;width:180px;">
<p:inputText value="#{orgPrmBean.weight}"
rendered="#{scoreCardOperationsBean.selectedCard.goalEdit}">
<f:convertNumber maxFractionDigits="0"/>
</p:inputText>
</p:column>
</p:dataTable>
It IS possible to make it work, but the solution is to bind the inputs to a backing bean, and update the values of the controls in the backing bean via listeners (using the new value received in the argument). Obviously this isn't a good solution if you have a complex form, as you need to add a listener/control in the backing bean for each control in the page, but it's practical if you just have one or two inputs.