[JBoss JIRA] Created: (RF-8270) provide a way to render a commandButton based on a minimum and/or maximum number of rows currently selected in a rich:*dataTable
by Ian Springer (JIRA)
provide a way to render a commandButton based on a minimum and/or maximum number of rows currently selected in a rich:*dataTable
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Key: RF-8270
URL: https://jira.jboss.org/jira/browse/RF-8270
Project: RichFaces
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: component-tables
Affects Versions: 3.3.2.SR1
Reporter: Ian Springer
This is useful when a particular action only makes sense when a certain number of rows are selected - here are a few examples:
1) most CRUD actions only make sense when at least one row is selected
2) a diff/compare action would only make sense when at least two rows were selected
For RHQ, we currently have a custom component for this but would prefer use something that was built-in to RichFaces. Here's what the usage of our component (onc:selectCommandButton) looks like (not the low and high attributes, which reflect the minimum and maximum rows that must be selected:
<f:facet name="footer">
<rich:columnGroup>
<rich:column colspan="4" width="100%">
<onc:selectCommandButton action="#{ResourceGroupOperationScheduleUIBean.unschedule}"
value="UNSCHEDULE" target="selectedItems"
styleClass="on-pager-button buttonsmall"
low="1"
rendered="#{ResourceGroupUIBean.permissions.control}"/>
<onc:selectCommandButton action="#{ResourceGroupOperationScheduleUIBean.executeNow}"
value="EXECUTE NOW" target="selectedItems"
styleClass="on-pager-button buttonsmall"
low="1" high="1"
rendered="#{ResourceGroupUIBean.permissions.control}"/>
</rich:column>
</rich:columnGroup>
</f:facet>
However, I think a nicer way to implement this would be to add a new optional attribute to the rich:*dataTable components, e.g.:
<rich:extendedDataTable selectedRowCount="#{MyManagedBean.selectedRowCount}" ... />
The extendedDataTable component would update this attribute any time the selection is changed by the GUI user. Then a standard commandButton could be used as follows:
<h:commandButton value="MyAction" rendered="#{MyManagedBean.selectedRowCount eq 1}" .../>
An alternative to a new 'selectedRowCount' attribute would be using the existing 'selection' attribute and adding a new getSelectedRowCount() method to the org.richfaces.model.selection.Selection interface that the 'selection' attribute updates. An example of what this option would look like:
<rich:extendedDataTable selection="#{MyManagedBean.selection}" ... />
<h:commandButton value="MyAction" rendered="#{MyManagedBean.selection.selectedRowCount eq 1}" .../>
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14 years
[JBoss JIRA] Created: (RF-8272) when in multi sort mode, provide an option to render numbers in each sorted column that indicates the current sort precedence of the columns
by Ian Springer (JIRA)
when in multi sort mode, provide an option to render numbers in each sorted column that indicates the current sort precedence of the columns
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Key: RF-8272
URL: https://jira.jboss.org/jira/browse/RF-8272
Project: RichFaces
Issue Type: Feature Request
Security Level: Public (Everyone can see)
Components: component-tables
Affects Versions: 3.3.2.SR1
Reporter: Ian Springer
For example, if a table is currently multi-sorted by three columns - Name, Description, and Price, there is no quick way to know for each of these three columns, whether it is the primary, secondary, or tertiary sort column. A tiny "1", "2", and "3" next to the up or down arrow icon would clear this up nicely.
For the RHQ project, we currently have a custom sorting facet which supports this feature. The facet is applied to a column as follows:
<rich:column>
<f:facet name="header">
<onc:sortableColumnHeader sort="res.resourceType.name">
<h:outputText styleClass="headerText" value="Type"/>
</onc:sortableColumnHeader>
</f:facet>
<h:outputText value="#{resourceComposite.resource.resourceType.name}"/>
</rich:column>
I've attached a screenshot that shows how the column headers are rendered with the little numbers.
I am creating this issue, because we would prefer using a built-in RichFaces feature, rather than a custom facet.
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14 years