From 8e086d5a90b2775a2aa0b44fad160086cb206922 Mon Sep 17 00:00:00 2001
From: Zach Copley <zach@status.net>
Date: Fri, 1 Apr 2011 23:59:35 -0700
Subject: [PATCH] QnA - save answer revisions and show # of revisions

---
 plugins/QnA/QnAPlugin.php               |   4 +
 plugins/QnA/actions/qnanewanswer.php    |   4 +-
 plugins/QnA/actions/qnareviseanswer.php | 205 ++++++++++++++++++++++++
 plugins/QnA/classes/QnA_Answer.php      |  12 +-
 plugins/QnA/classes/QnA_Question.php    |   4 +-
 plugins/QnA/lib/qnareviseanswerform.php |  11 +-
 6 files changed, 229 insertions(+), 11 deletions(-)
 create mode 100644 plugins/QnA/actions/qnareviseanswer.php

diff --git a/plugins/QnA/QnAPlugin.php b/plugins/QnA/QnAPlugin.php
index 9a05eeb0b2..5740054a5f 100644
--- a/plugins/QnA/QnAPlugin.php
+++ b/plugins/QnA/QnAPlugin.php
@@ -124,6 +124,10 @@ class QnAPlugin extends MicroAppPlugin
             'main/qna/newanswer',
             array('action' => 'qnanewanswer')
         );
+        $m->connect(
+            'main/qna/reviseanswer',
+            array('action' => 'qnareviseanswer')
+        );
         $m->connect(
             'question/vote/:id',
             array('action' => 'qnavote', 'type' => 'question'),
diff --git a/plugins/QnA/actions/qnanewanswer.php b/plugins/QnA/actions/qnanewanswer.php
index 09d111040d..a91ae9ad39 100644
--- a/plugins/QnA/actions/qnanewanswer.php
+++ b/plugins/QnA/actions/qnanewanswer.php
@@ -20,7 +20,7 @@
  * You should have received a copy of the GNU Affero General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *
- * @category  QuestonAndAnswer
+ * @category  QnA
  * @package   StatusNet
  * @author    Zach Copley <zach@status.net>
  * @copyright 2011 StatusNet, Inc.
@@ -158,7 +158,7 @@ class QnanewanswerAction extends Action
             $this->element('title', null, _m('Answers'));
             $this->elementEnd('head');
             $this->elementStart('body');
-            $this->raw()
+            $this->raw($this->answer->asHTML());
             $this->elementEnd('body');
             $this->elementEnd('html');
         } else {
diff --git a/plugins/QnA/actions/qnareviseanswer.php b/plugins/QnA/actions/qnareviseanswer.php
new file mode 100644
index 0000000000..686cf8d46d
--- /dev/null
+++ b/plugins/QnA/actions/qnareviseanswer.php
@@ -0,0 +1,205 @@
+<?php
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2011, StatusNet, Inc.
+ *
+ * Revise an answer
+ *
+ * PHP version 5
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  QnA
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @copyright 2011 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link      http://status.net/
+ */
+if (!defined('STATUSNET')) {
+    // This check helps protect against security problems;
+    // your code file can't be executed directly from the web.
+    exit(1);
+}
+
+/**
+ * Revise an answer
+ *
+ * @category  QnA
+ * @package   StatusNet
+ * @author    Zach Copley <zach@status.net>
+ * @copyright 2010 StatusNet, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
+ * @link      http://status.net/
+ */
+class QnareviseanswerAction extends Action
+{
+    protected $user     = null;
+    protected $error    = null;
+    protected $question = null;
+    protected $answer   = null;
+    protected $content  = null;
+
+    /**
+     * Returns the title of the action
+     *
+     * @return string Action title
+     */
+    function title()
+    {
+        // TRANS: Page title for revising a question
+        return _m('Revise answer');
+    }
+
+    /**
+     * For initializing members of the class.
+     *
+     * @param array $argarray misc. arguments
+     *
+     * @return boolean true
+     */
+    function prepare($argarray)
+    {
+        parent::prepare($argarray);
+        if ($this->boolean('ajax')) {
+            StatusNet::setApi(true);
+        }
+
+        $this->user = common_current_user();
+
+        if (empty($this->user)) {
+            // TRANS: Client exception thrown trying to answer a question while not logged in.
+            throw new ClientException(
+                _m("You must be logged in to answer to a question."),
+                403
+            );
+        }
+
+        if ($this->isPost()) {
+            $this->checkSessionToken();
+        }
+
+        $id = substr($this->trimmed('id'), 7);
+
+        common_debug("XXXXXXXXXXXXXXXXXX id = " . $id);
+
+        $this->answer   = QnA_Answer::staticGet('id', $id);
+        $this->question = $this->answer->getQuestion(); 
+
+        if (empty($this->answer) || empty($this->question)) {
+            // TRANS: Client exception thrown trying to respond to a non-existing question.
+            throw new ClientException(
+                _m('Invalid or missing answer.'),
+                404
+            );
+        }
+
+        $this->answerText = $this->trimmed('answer');
+
+        return true;
+    }
+
+    /**
+     * Handler method
+     *
+     * @param array $argarray is ignored since it's now passed in in prepare()
+     *
+     * @return void
+     */
+    function handle($argarray=null)
+    {
+        parent::handle($argarray);
+
+        if ($this->isPost()) {
+            $this->reviseAnswer();
+        } else {
+            $this->showPage();
+        }
+
+        return;
+    }
+
+    /**
+     * Revise the answer
+     *
+     * @return void
+     */
+    function reviseAnswer()
+    {
+        $answer = $this->answer;
+        
+        try {
+            $orig = clone($answer);
+            $answer->content = $this->answerText;
+            $answer->revisions++;
+            $result = $answer->update($orig);
+        } catch (ClientException $ce) {
+            $this->error = $ce->getMessage();
+            $this->showPage();
+            return;
+        }
+        if ($this->boolean('ajax')) {
+            common_debug("ajaxy part");
+            header('Content-Type: text/xml;charset=utf-8');
+            $this->xw->startDocument('1.0', 'UTF-8');
+            $this->elementStart('html');
+            $this->elementStart('head');
+            // TRANS: Page title after sending an answer.
+            $this->element('title', null, _m('Answer'));
+            $this->elementEnd('head');
+            $this->elementStart('body');
+            $this->raw($answer->asHTML());
+            $this->elementEnd('body');
+            $this->elementEnd('html');
+        } else {
+            common_redirect($this->answer->bestUrl(), 303);
+        }
+    }
+
+    /**
+     * Show the revise answer form
+     *
+     * @return void
+     */
+    function showContent()
+    {
+        if (!empty($this->error)) {
+            $this->element('p', 'error', $this->error);
+        }
+
+        $form = new QnareviseanswerForm($this->answer, $this);
+        $form->show();
+
+        return;
+    }
+
+    /**
+     * Return true if read only.
+     *
+     * MAY override
+     *
+     * @param array $args other arguments
+     *
+     * @return boolean is read only action?
+     */
+    function isReadOnly($args)
+    {
+        if ($_SERVER['REQUEST_METHOD'] == 'GET' ||
+            $_SERVER['REQUEST_METHOD'] == 'HEAD') {
+            return true;
+        } else {
+            return false;
+        }
+    }
+}
diff --git a/plugins/QnA/classes/QnA_Answer.php b/plugins/QnA/classes/QnA_Answer.php
index 5727411a80..79970dc1df 100644
--- a/plugins/QnA/classes/QnA_Answer.php
+++ b/plugins/QnA/classes/QnA_Answer.php
@@ -205,8 +205,16 @@ class QnA_Answer extends Managed_DataObject
     {
         $notice = $question->getNotice();
 
-        $fmt   = '<span class="answer_author"><a href="%1$s">answer</a> by <a href="%2$s">%3$s</a></span>';
-        $fmt  .= '<span class="answer_content">%4$s</span>';
+        $fmt  = '<p class="qna_answer">';
+        $fmt .= '<span class="answer_author"><a href="%1$s">answer</a> by <a href="%2$s">%3$s</a></span>';
+        $fmt .= '<span class="answer_content">%4$s</span>';
+        if (!empty($answer->revisions)) {
+            $fmt .= '<span class="answer_revisions">'
+                 . $answer->revisions
+                 . _m('revisions')
+                 . '</span>';
+        }
+        $fmt .= '</p>';
 
         return sprintf(
             $fmt,
diff --git a/plugins/QnA/classes/QnA_Question.php b/plugins/QnA/classes/QnA_Question.php
index 2403857d28..0446128ea0 100644
--- a/plugins/QnA/classes/QnA_Question.php
+++ b/plugins/QnA/classes/QnA_Question.php
@@ -221,11 +221,11 @@ class QnA_Question extends Managed_DataObject
     {
         $notice = $question->getNotice();
 
-        $fmt =  '<div class="qna_question">';
+        $fmt =  '<p class="qna_question">';
         $fmt .= '<span class="question_title"><a href="%1$s">%2$s</a></span>';
         $fmt .= '<span class="question_description">%3$s</span>';
         $fmt .= '<span class="question_author">asked by <a href="%4$s">%5$s</a></span>';
-        $fmt .= '</div>';
+        $fmt .= '</p>';
 
         $q = sprintf(
             $fmt,
diff --git a/plugins/QnA/lib/qnareviseanswerform.php b/plugins/QnA/lib/qnareviseanswerform.php
index 48f47e5e98..f9ebae132c 100644
--- a/plugins/QnA/lib/qnareviseanswerform.php
+++ b/plugins/QnA/lib/qnareviseanswerform.php
@@ -91,7 +91,7 @@ class QnareviseanswerForm extends Form
      */
     function action()
     {
-        return common_local_url('qnareviseanswer', array('id' => $this->question->id));
+        return common_local_url('qnareviseanswer');
     }
 
     /**
@@ -101,12 +101,13 @@ class QnareviseanswerForm extends Form
      */
     function formData()
     {
-        $question = $this->question;
         $out      = $this->out;
-        $id       = "question-" . $question->id;
 
-        $out->element('p', 'Your answer to:', $question->title);
-        $out->textarea('answerText', 'You said:', $this->answer->content);
+        $out->element('p', 'Your answer to:', $this->question->title);
+
+        $id = "answer-" . $this->answer->id;
+        $out->hidden('id', $id);
+        $out->textarea('answer', 'You said:', $this->answer->content);
     }
 
     /**
-- 
2.39.5