I am using rich faces select component.
I want dynamic values when user manually type some thing in the select component.
<rich:select enableManualInput="true" defaultLabel="start typing for select" value="#{supplierSearchBean.userInput}">
<a4j:ajax event="keyup" execute="#this" listener="#{supplierSearchBean.userInputChange}"/>
<f:selectItems value="#{supplierSearchBean.selectOptions}" />
</rich:select>
Java code as follows
public void userInputChange(ActionEvent ae){
Map map = ae.getComponent().getAttributes();
System.out.println(map.toString());
}
public void setUserInput(String userInput) {
System.out.println("userINput = " + userInput);
this.userInput = userInput;
}
Here i found 2 issues
1st: setUserINput always print empty string when user type value
2nd: listener method never get call.
any help ?
The problem is most probably that there is no selected value while the user types, and this component restricts the allowed values to the specified select items. A partial input is thus not valid and cannot be bound to your bean.
I think you could get the expected behavior if you use a rich:autocomplete instead. However, if you want to restrict the allowed values, maybe you can keep your rich:select and listen for the selectitem event.
Override getItems function in richfaces-utils.js file in richfaces-core-impl-4.0.0.Final.jar under richfaces-core-impl-4.0.0.Final\META-INF\resources folder.
Change the condition of pushing items to be
if(p != -1)
instead of
if(p == 0)
This should fix the issue.
Related
I am currently using ReSharper V8.1. I've only recently began using ReSharper and have found some interest in their LiveTemplate Macros. I've conjured up a solution to return a list of HotspotItems from a constant, similar to ReSharper's predefined macro "Comma-delimited list of values". In the method I take the constant variable of the template parameter and do a split string on them to provide a collection of HotSpotItems. Unfortunately it doesn't work if I use the macro more than one time within a template. Below is an extreme hack job showing my implementation of the method HotspotItems of IMacroImplementation.
I am hoping that someone out there may have done some work in this area and could possibly provide an example of how they've implemented IMacroImplementation which provides a list of items from a constant and also allows for multiple uses within a single template.
Thank you.
public override HotspotItems GetLookupItems(IHotspotContext context)
{
HotspotItems hotSpotItems = null;
foreach (var hotspot in context.HotspotSession.Hotspots)
{
if (hotspot.Expression != null && ((MacroCallExpressionNew)hotspot.Expression).Definition is Macros.DisplayMultipleItems)
{
//hotspot.CurrentValue
var multiItems = ((MacroCallExpressionNew) hotspot.Expression).Definition as DisplayMultipleItems;
if (!multiItems.ItemSet)
{
var expression = hotspot.Expression as MacroCallExpressionNew;
IMacroParameterValueNew baseValue = expression.Parameters[0].GetValue(context.SessionContext.Solution.GetLifetime(), context.HotspotSession);
string templateValue = baseValue.GetValue();
multiItems.ItemSet = true;
if (!string.IsNullOrEmpty(templateValue) && templateValue.Split(',').Any())
{
var lookupItems = templateValue.Split(',').Select(param => new TextLookupItem(param)).Cast<ILookupItem>().ToList();
if (hotSpotItems == null)
hotSpotItems = new HotspotItems(lookupItems);
else
{
foreach (var item in lookupItems)
{
hotSpotItems.Items.Add(item);
}
}
}
}
}
}
return hotSpotItems;
}
You should fire up dotPeek and point it to the ReSharper bin directory and take a look at ListMacroDef and ListMacroImpl, which is the implementation for the comma-delimited list macro.
The definition derives from SimpleMacroDefinition. It gets given the parameters in the call to GetPlaceholder, looks at the first and splits it by comma, returning the first item as the placeholder.
ListMacroImpl is just as simple. Its constructor has an [Optional] parameter of type MacroParameterValueCollection. This is the list of parameter values specified in the hotspot editor. You'll want to check for null and take the first parameter, which will be your delimited list. It then overrides GetLookupItems and returns HotspotItems.Empty if the parameter value is null, or parses the value and returns a list of TextLookupItem.
You don't need to look at the session and list of hotspots - that will get you all hotspots in the session, when you're only interested in the current hotspot, and ReSharper will create a new IMacroImplementation for each hotspot and give you those values in your constructor.
I have a "Thing" domain class, where each Thing has an record number (which is not the automatically generated id), that the user will use to access a Thing:
class Thing {
...
String recordNumber
...
}
There is a form to look for a Thing, knowing its recordNumber:
<g:form action="search">
<input name="recordNumber">
<g:submitButton name="btn" value="go to this Thing"/>
</g:form>
I would like to use a validation process in this form: if the recordNumber is not found (Thing.findByRecordNumber(recordNumber) == null), then the input field must turn in red, and a tooltip must show the error message "record number not found".
As far as I know/read (I'm a grails rookie), this has to be written as a constraint in the Thing class:
static constraints = {
recordNumber validator: { n -> Thing.findByRecordNumber(recordNumber) }
}
The problem is: I do not have in this form all the "Thing" properties to populate, just the recordNumber one, so I just can't call
new Thing(params).validate()
How to call validation on just one field, not on the whole object ?
If this is your main question, although I see others there:
"How to call validation on just one field, not on the whole object ?"
You can pass a list of values to validate and it will only validate those properties
new Thing(params).validate(["recordNumber"])
http://grails.org/doc/latest/ref/Domain%20Classes/validate.html
Validation is for constraints for domain class properties. You need an action in your controller:
def search = {
if(params.recordNumber && Thing.findByRecordNumber(params.recordNumber)){
redirect(action: "show", params:[id:Thing.findByRecordNumber(params.recordNumber).id])
}else{
flush.message = "No record found"
render(view:'VIEW_WITH_SEARCH_FORM')
}
}
If you want to validate without refreshing page, write a javascript code.
I have created a multifield custom widget having two fields with names ./urlLink and ./urlText.
Now i m trying to fetch the values from widget into the component's jsp with following code
String property = properties.get("./urlLink",String[].class);
for(String value: property ) {
out.print(value);
}
out.print(property);
But i am not able to get its value instead i m getting error.
If you're getting a property and it contains a string value, you need to use the method getString() - that way when you have the property, you can set the string to the value by doing something like this:
Property property = properties.get("./urlLink",String.class);
String value = property.getString();
Just a side note, if your return is supposed to be a string array, your type that you're putting the values in should be a string array.
String[] value
Check out the documentation on day.com for Properties and getting the values inside them.
Looks like a typo: you don't prefix a property name with .\ when accessing it.
My guess is you got a NullPointerException, right? That's because there's no ./urlLink property in the value map (properties). You should check against that anyway (so that it's not thrown on a fresh page with no content).
If that doesn't help -- double check that you have the properties in the content (call your page with .xml or .infinite.json extensions, and then double check if you can read them as plain strings (you should be able to -- CRX does some magic, smart type conversions).
It's good to register custom xtype as :
// registering the custom widget with the name dualfield
CQ.Ext.reg("dualfield", CQ.Ext.form.DualField);
Then u can easily fetch the value as :
String[] data = properties.get("multi",String[].class);
Here multi is the name of widget having multifield as xtype
I have a Zend Form with a MutliCheckbox element.
I would like to validate the number of checked items, i.e. verify that exactly 3 items are checked.
Can I do it with any current validates or do I have to write my own?
Thanks.
You will have to write your own, but that's quite simple. There is a second optional argument on the isValid() method that gives you access to all the form values, and enables this way to validate against multiple inputs.
class MyValidator extends Zend_Validate_Abstract {
public function isValid($value, $formData = null){
//you can access to all the form values in the $formData, and check/count
//the values of your multicheckbox
//this is the super-quick way, but you could also add error messages
return $isValid;
}
}
and then add it to your element
$myElement->addValidator( new MyValidator());
I'm writing a custom validator that will validate against multiple other form element values. In my form, I call my custom validator like this:
$textFieldOne = new Zend_Form_Element_Text('textFieldOne');
$textFieldOne->setAllowEmpty(false)
->addValidator('OnlyOneHasValue', false, array(array('textFieldTwo', 'textFieldThree')));
My validator will check that only one of those three fields (textFieldOne, textFieldTwo, textFieldThree) has a value. I want to prevent a future developer from accidentally passing the same field twice.
$textFieldOne->addValidator('OnlyOneHasValue', false, array(array('textFieldOne', 'textFieldTwo', 'textFieldThree')));
So far, my validator works perfectly, except when I pass the same field name as the field that has the valiator set on it.
In my validator, you can see that I am checking that the value (of the element with the validator set on it). I'm also checking the values of the other fields that were passed to the validator.
public function isValid($value, $context = null) {
$this->_setValue($value);
$this->_context = $context;
if ($this->valueIsNotEmpty()) {
if ($this->numberOfFieldsWithAValue() == 0) {
return true;
}
$this->_error(self::MULTIPLE_VALUES);
return false;
}
if ($this->numberOfFieldsWithAValue() == 0) {
$this->_error(self::ALL_EMPTY);
return false;
}
if ($this->numberOfFieldsWithAValue() == 1) {
return true;
}
if ($this->numberOfFieldsWithAValue() > 1) {
$this->_error(self::MULTIPLE_VALUES);
return false;
}
}
private function valueIsNotEmpty() {
return Zend_Validate::is($this->_value, 'NotEmpty');
}
private function numberOfFieldsWithAValue() {
$fieldsWithValue = 0;
foreach ($this->_fieldsToMatch as $fieldName) {
if (isset($this->_context[$fieldName]) && Zend_Validate::is($this->_context[$fieldName], 'NotEmpty')) {
$fieldsWithValue++;
}
}
return $fieldsWithValue;
}
My solution is to either...
A. Let the developer figure out there is a certain way to do it.
B. Ignore $value, forcing you to pass all the elements (which isn't much different than the first option).
or C. (if possible) Find the name of the element that called my validator in the first place and ignore it from the list of $fieldsWithValue.
I don't think there is a way to apply a validator on a form without attaching it to an element, but that would be even better, if it were an option.
How can I solve this problem?
Normaly i'd advise against such things, but, in this case I believe a static member in your class would actually provide a good solution to this problem.
With a static member, you can set it to the value in the first time the isValid is called, and check against it in subsequent calls, thus giving you a mechanism for this.
You may want to set this up to use some array in the configuration options, so that you can namespace and allow multiple instances of the validator to exist happily alongside each other for different sets.
The only problem that you really have to decide how to overcome, is where you wish to display the error, as yes the form itself does not take validators. if you want all the duplicates after the first to display an error, it is not so much of a problem.