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POForm with repeating textarea - how to get the variable?
 

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  1. POForm with repeating textarea - how to get the variable?
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    <p>i have a repeating form like this: </p> <pre><code>&lt;ui:repeat var="blogPost" value="#{blogPosts}"&gt; &lt;h:form&gt; &lt;div class="full"&gt; &lt;label for="newcomment"&gt;write a comment&lt;br/&gt;&lt;/label&gt; &lt;h:inputTextarea value="#{commentController.commentText}" id="commentText" rows="10" cols="40" /&gt; &lt;/div&gt; &lt;div class="full"&gt; &lt;h:commandButton action="#{commentController.setComment()}" value="write comment"&gt; &lt;f:setPropertyActionListener target="#{commentController.blogPostId}" value="#{blogPost.id}" /&gt; &lt;/h:commandButton&gt; &lt;/h:form&gt; &lt;/ui:repeat&gt; </code></pre> <p>I found this <a href="https://stackoverflow.com/questions/2082958/can-i-pass-an-object-with-a-jsf-param-tag">Post</a> form BalusC - helped me a lot so i have now the blogPostID in my controller! </p> <p>But the problem is:<br> The form is repeating 1 - x times! </p> <p>So, if i have 3 forms rendered, all textareas use the same commentController.commentText</p> <p>So if i write something in the first textarea, the 2nd and 3rd are deleting the commentText in the Controller.<br> If i put something into the 3rd textarea, it works! </p> <p>Any idea how to fix tis problem?<br> thanks in advance!</p> <p>p.s. i also tried to have the <code>&lt;h:form&gt;</code> outside the <code>&lt;ui:repeat&gt;</code> - makes no difference</p> <p>Here are the classes:</p> <p>The Controller:</p> <pre><code>@ManagedBean(name="commentController") @RequestScoped public class CommentController { @EJB private CommentProvider commentProvider; private String commentText; private List&lt;String&gt; commentTextListToWrite; private Comment comment; private Integer blogPostId; @PostConstruct protected void init(){ comment = new Comment(); commentTextListToWrite = new ArrayList&lt;String&gt;(); } public void setComment(){ int count = 0; for (String ct : commentTextListToWrite) { System.out.println("test " + count + ct); count++; } } /** * Returns the commentText. * * @return the commentText. */ public String getCommentText() { return commentText; } /** * Sets the commentText. * * @param commentText the commentText to set. */ public void setCommentText(String commentText) { this.commentText = commentText; } public void delete(Comment comment){ commentProvider.delete(comment); } /** * Returns the blogPostId. * * @return the blogPostId. */ public Integer getBlogPostId() { return blogPostId; } /** * Sets the blogPostId. * * @param blogPostId the blogPostId to set. */ public void setBlogPostId(Integer blogPostId) { this.blogPostId = blogPostId; } /** * Returns the commentTextListToWrite. * * @return the commentTextListToWrite. */ public List&lt;String&gt; getCommentTextListToWrite() { return commentTextListToWrite; } /** * Sets the commentTextListToWrite. * * @param commentTextListToWrite the commentTextListToWrite to set. */ public void setCommentTextListToWrite(List&lt;String&gt; commentTextListToWrite) { this.commentTextListToWrite = commentTextListToWrite; } } </code></pre> <p>index.xhtml:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:s="http://jboss.com/products/seam/taglib" xmlns:c="http://java.sun.com/jsp/jstl/core" template="/WEB-INF/templates/default.xhtml"&gt; &lt;ui:define name="content"&gt; &lt;h2&gt;Show all BlogPosts&lt;/h2&gt; &lt;ui:repeat var="blogPost" value="#{blogPosts}" varStatus="loop" &gt; &lt;h:form&gt; &lt;div class="posting"&gt; &lt;h3&gt;#{blogPost.headline}&lt;/h3&gt; &lt;div class="posts"&gt;#{blogPost.blogPost}&lt;/div&gt; &lt;div class="posts"&gt; vom #{blogPost.date} mit ID: #{blogPost.id}&lt;br /&gt; &lt;h:commandButton value="delete" action="#{blogPostController.delete(blogPost)}" /&gt; &lt;/div&gt; &lt;/div&gt; &lt;ui:include src="pages/components/_write-comment.xhtml"&gt; &lt;ui:param name="blogPostId" value="#{blogPost.id}" /&gt; &lt;ui:param name="loopCount" value="#{loop.index}" /&gt; &lt;/ui:include&gt; &lt;/h:form&gt; &lt;/ui:repeat&gt; &lt;/ui:define&gt; &lt;/ui:composition&gt; </code></pre> <p>_write-comment.xhtml</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html"&gt; &lt;div class="full"&gt; &lt;span class="half"&gt; &lt;label for="newcomment"&gt;write comment&lt;/label&gt;&lt;br/&gt; &lt;h:outputLabel for="commentText" value="loop index #{loopCount}" /&gt; &lt;h:inputTextarea value="#{commentController.commentText[loopCount]}" id="commentText" rows="10" cols="40"&gt; &lt;/h:inputTextarea&gt; &lt;/span&gt; &lt;span class="quarter error"&gt; &lt;h:message id="newcomment_error" for="newcomment" value="fehler" /&gt; &lt;/span&gt; &lt;/div&gt; &lt;div class="full"&gt; &lt;h:commandButton action="#{commentController.setComment()}" value="write comment"&gt; &lt;/h:commandButton&gt; &lt;/div&gt; &lt;/ui:composition&gt; </code></pre> <p>is the Setter of the List correct?</p> <p>there is (at the moment) no real error, but the system out fails, because the list is empty (the System.Out just stands for another function... it's just for testing!)</p>
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    1. COis there any chance, to set the parameter not in the <h:inputTextarea but int the <f:setPropertyActionListener ???
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    2. COThe setter is correctly declared. I updated my answer with a possible solution.
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