How to get the data altered by the user in html page in a list view

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How to get the data altered by the user in html page in a list view

by Deepak_G :: Rate this Message:

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Hello,

I am rendering a list view having multiple rows using wicket. In form submit(), I could retrive the data in below mentioned code but i am not sure whether it is right way of getting the changed data from the list view . Below is my code snippet attached. Please review the code and let me know the best practice.

// LiConfig is application pojo
private Form form;
private ListView li_config_settings_row;
private List<LiConfig> li_config_settings;// applicaton pojo list
li_config_settings_row = new ListView("settingRow", li_config_settings) {
protected void populateItem(ListItem item) {
final LiConfig p = (LiConfig) item.getModelObject();
item.setModel(new CompoundPropertyModel(p));
//Some code to add components like Hidden fields, Text fields, Labels etc.
}
};
form.add(li_config_settings_row);

form = new Form("sectionPanelForm"){
protected void onSubmit() {
ArrayList<LiConfig> liConfigs = new ArrayList<LiConfig>();
Iterator<ListItem> iterator = li_config_settings_row.iterator();
while (iterator.hasNext()) {
ListItem listItem = iterator.next();
LiConfig l = new LiConfig();
Iterator<Component> childIterator = listItem..iterator();
boolean changed = false;
while (childIterator.hasNext()) {
Component c = childIterator.next();
if (c.getId().equalsIgnoreCase("isChanged")) {
if ((((HiddenField) c).getConvertedInput()
.toString()).equalsIgnoreCase("1")) {
changed = true;
}

}
if (c.getId().equalsIgnoreCase("id")) {
l.setId(new Integer(((HiddenField) c)
.getConvertedInput().toString()));
}
if (c.getId().equalsIgnoreCase("fieldValue")) {
l
.setFieldValue(((TextField) c)
.getConvertedInput() != null ? ((TextField) c)
.getConvertedInput().toString()
: "");
}

}
if (changed) {
liConfigs.add(l);
}
}

if (liConfigs.size() != 0) {
ArrayList<LiConfig> updatedList = new ArrayList();
String changedValue;
for (LiConfig li : liConfigs) {
changedValue = li.getFieldValue();
li = ConfigWizardhelper.getLiConfig(li.getId());
li.setFieldValue(changedValue);
updatedList.add(li);

}
ConfigWizardhelper.insertORUpdateLiConfigs(updatedList);
}
HashMap<String, String> param = new HashMap<String, String>();
param.put("id", id);

ConfigWizardPage.index = getIndex();
setResponsePage(ConfigWizardPage.class);
}
};

Re: How to get the data altered by the user in html page in a list view

by igor.vaynberg :: Rate this Message:

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a) you should be using models to bind data instead of directly
iterating over listview's listitems
b) when using listview in a form you should call setreuseitems(true) on it.

-igor

On Mon, Jul 7, 2008 at 3:17 AM, Deepak_G <Deepak.Headstrong@...> wrote:

>
> Hello,
>
> I am rendering a list view having multiple rows using wicket. In form
> submit(), I could retrive the data in below mentioned code but i am not sure
> whether it is right way of getting the changed data from the list view .
> Below is my code snippet attached. Please review the code and let me know
> the best practice.
>
> // LiConfig is application pojo
> private Form form;
> private ListView li_config_settings_row;
> private List<LiConfig> li_config_settings;// applicaton pojo list
> li_config_settings_row = new ListView("settingRow", li_config_settings) {
> protected void populateItem(ListItem item) {
> final LiConfig p = (LiConfig) item.getModelObject();
> item.setModel(new CompoundPropertyModel(p));
> //Some code to add
> components like Hidden fields, Text fields, Labels etc.
> }
> };
> form.add(li_config_settings_row);
>
> form = new Form("sectionPanelForm"){
> protected void onSubmit() {
> ArrayList<LiConfig> liConfigs = new ArrayList<LiConfig>();
> Iterator<ListItem> iterator = li_config_settings_row.iterator();
> while (iterator.hasNext()) {
> ListItem listItem = iterator.next();
> LiConfig l = new LiConfig();
> Iterator<Component> childIterator = listItem..iterator();
> boolean changed = false;
> while (childIterator.hasNext()) {
> Component c = childIterator.next();
> if (c.getId().equalsIgnoreCase("isChanged")) {
> if ((((HiddenField) c).getConvertedInput()
> .toString()).equalsIgnoreCase("1")) {
> changed = true;
> }
>
> }
> if (c.getId().equalsIgnoreCase("id")) {
> l.setId(new Integer(((HiddenField) c)
> .getConvertedInput().toString()));
> }
> if (c.getId().equalsIgnoreCase("fieldValue")) {
> l
> .setFieldValue(((TextField) c)
> .getConvertedInput() != null ? ((TextField) c)
> .getConvertedInput().toString()
> : "");
> }
>
> }
> if (changed) {
> liConfigs.add(l);
> }
> }
>
> if (liConfigs.size() != 0) {
> ArrayList<LiConfig> updatedList = new ArrayList();
> String changedValue;
> for (LiConfig li : liConfigs) {
> changedValue = li.getFieldValue();
> li = ConfigWizardhelper.getLiConfig(li.getId());
> li.setFieldValue(changedValue);
> updatedList.add(li);
>
> }
> ConfigWizardhelper.insertORUpdateLiConfigs(updatedList);
> }
> HashMap<String, String> param = new HashMap<String, String>();
> param.put("id", id);
>
> ConfigWizardPage.index = getIndex();
> setResponsePage(ConfigWizardPage.class);
> }
> };
> --
> View this message in context: http://www.nabble.com/How-to-get-the-data-altered-by-the-user-in-html-page--in-a-list-view-tp18313650p18313650.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
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