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POJSF 2.1 Validation of two inputs at the same time using Ajax
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  1. POJSF 2.1 Validation of two inputs at the same time using Ajax
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    copied!<p>I have a problem with validation of two inputs at the same time.</p> <p>In my validator I need data from both:</p> <ol> <li><code>&lt;h:selectOneListbox&gt;</code></li> <li><code>&lt;h:inputText&gt;</code></li> </ol> <p>The idea is to check if an address is reachable for delivery personnel. During validation I make a request to DB. And look for a combination of streetName + houseNumber.</p> <h3>Here is a part of my JSF page.</h3> <pre><code> &lt;h:form&gt; &lt;p&gt; &lt;h:outputLabel for="streetsList" value="Street"/&gt; &lt;h:selectOneListbox id="streetsList" binding="#{theStreetsList}" size="1" value="#{makeOrder.streetName}" required="true"&gt; &lt;f:selectItems value="#{locationView.streetNames}" var="streetName" itemLabel="#{streetName}" itemValue="#{streetName}"/&gt; &lt;/h:selectOneListbox&gt; &lt;/p&gt; &lt;p class="address_details"&gt; &lt;h:outputLabel for="houseInput" value="#{msgs.house}"/&gt; &lt;h:inputText id="houseInput" class="tab_input house_input" value="#{makeOrder.house}" required="true"&gt; &lt;f:validator validatorId="AddressValidator" /&gt; &lt;f:attribute name="street" value="#{theStreetsList}" /&gt; &lt;f:ajax event="blur" execute="streetsList houseInput" render="m_houseInput" /&gt; &lt;/h:inputText&gt; &lt;h:message id="m_houseInput" for="houseInput" style="color:red" /&gt; &lt;h:outputLabel for="flatInput" class="flat_label" value="#{msgs.flat}"/&gt; &lt;h:inputText class="tab_input flat_input" value="#{makeOrder.flat}"/&gt; &lt;/p&gt; &lt;/h:form&gt; </code></pre> <h3>Here is validate method of my class:</h3> <pre><code>@Override public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException { String house = (String) value; UIInput streetsComponent = (UIInput) component.getAttributes().get("street"); String streetName = (String) streetsComponent.getSubmittedValue(); Street orderStreet = this.findStreetInDB(streetName, house); if (orderStreet.getName().equals("dummyStreet")) { // Show error FacesMessage msg = new FacesMessage( "Unfortunately we do not deliver to this address, yet."); msg.setSeverity(FacesMessage.SEVERITY_ERROR); throw new ValidatorException(msg); } } </code></pre> <p>My problem is that <code>String streetName</code> is <code>null</code>. </p> <p><strong>P.S.</strong> Values of this element are rendered fine. And I even can submit a form if I don't use validation.</p> <ul> <li>What am I doing wrong?</li> <li>What is the right way of doing this?</li> </ul> <p>Thanks!</p>
 

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