From 1640d38baac03a31d8272461a96b287ba17655ca Mon Sep 17 00:00:00 2001
From: Hendrik <hendrik.huang@student.uva.nl>
Date: Thu, 19 Jan 2017 16:29:38 +0100
Subject: [PATCH] add user page functionality

---
 website/queries/user.php     | 51 ++++++++++++++++++++++++++++
 website/views/adminpanel.php | 65 +++++++++++++++++++++++++++++++-----
 2 files changed, 107 insertions(+), 9 deletions(-)

diff --git a/website/queries/user.php b/website/queries/user.php
index d0d81bd..9b05511 100644
--- a/website/queries/user.php
+++ b/website/queries/user.php
@@ -69,6 +69,57 @@ function search20UsersFromNByStatus($db, $n, $keyword, $status) {
     return $q;
 }
 
+function searchSomeUsersByStatus($db, $n, $m, $keyword, $status) {
+    $q = $db->prepare("
+    SELECT
+        `userID`,
+        `username`,
+        `role`,
+        `bancomment`
+    FROM
+        `user`
+    WHERE
+        `username` LIKE :keyword AND
+        FIND_IN_SET (`role`, :statuses)
+    ORDER BY
+        `role`,
+        `username`
+    LIMIT
+        :n, :m
+    ");
+
+    $keyword = "%$keyword%";
+    $q->bindParam(':keyword', $keyword);
+    $q->bindParam(':n', $n, PDO::PARAM_INT);
+    $q->bindParam(':m', $m, PDO::PARAM_INT);
+    $statuses = implode(',', $status);
+    $q->bindParam(':statuses', $statuses);
+    $q->execute();
+    return $q;
+}
+
+function countSomeUsersByStatus($db, $keyword, $status) {
+    $q = $db->prepare("
+    SELECT
+        COUNT(*)
+    FROM
+        `user`
+    WHERE
+        `username` LIKE :keyword AND
+        FIND_IN_SET (`role`, :statuses)
+    ORDER BY
+        `role`,
+        `username`
+    ");
+
+    $keyword = "%$keyword%";
+    $q->bindParam(':keyword', $keyword);
+    $statuses = implode(',', $status);
+    $q->bindParam(':statuses', $statuses);
+    $q->execute();
+    return $q;
+}
+
 function changeUserStatusByID($db, $id, $status) {
     $q = $db->query("
     UPDATE
diff --git a/website/views/adminpanel.php b/website/views/adminpanel.php
index 8b0990c..637bf56 100644
--- a/website/views/adminpanel.php
+++ b/website/views/adminpanel.php
@@ -18,6 +18,23 @@
         }
     }
 
+    function checkCheckAll(allbox) {
+        var checkboxes = document.getElementsByClassName('checkbox-list');
+        var checked = true;
+
+        for (var i = 0; i < checkboxes.length; i++) {
+            if (checkboxes[i].type == 'checkbox') {
+                if (checkboxes[i].checked == false) {
+                    checked = false;
+                    break;
+                }
+            }
+        }
+
+        document.write(checked);
+        allbox.checked = checked;
+    }
+
     function changeFilter() {
         if (document.getElementById('group').checked) {
             document.getElementById('admin-filter').style.display = 'none';
@@ -45,7 +62,10 @@
 <!-- function test_input taken from http://www.w3schools.com/php/php_form_validation.asp -->
 <?php
 $search = "";
-$listnr = 0; // TODO: add page functionality
+$listn = 0; // TODO: add page functionality
+$listm = 20;
+$currentpage = 1;
+$perpage = 20;
 $status = $groupstatus = array();
 $pagetype = "user";
 
@@ -83,6 +103,10 @@ if ($_SERVER["REQUEST_METHOD"] == "POST") {
         changeMultipleGroupStatusByID($db, $_POST["checkbox-group"], $_POST["groupbatchactions"]);
     }
 
+    if (isset($_POST["pageselect"])) {
+        $currentpage = $_POST["pageselect"];
+    }
+
 }
 
 function test_input($data) {
@@ -199,15 +223,37 @@ function test_input($data) {
                 <h2 class="usertitle">Users:</h2>
 
                 <div class="admin-userpage">
+                    <p class="pagenumber">Showing results
+                    <?php $pages = countSomeUsersByStatus($db, $search, $status);
+                    $countresults = $pages->fetchColumn();
+                    $mincount = min($listm, $countresults);
+                    echo "$listn to $mincount out of $countresults"; ?></p><br>
                     <input type="submit" name="prev" value="prev">
-                    1 / 1
+                    <form class="admin-pageselector"
+                          action="<?php htmlspecialchars(basename($_SERVER['REQUEST_URI'])) ?>"
+                          method="post">
+                          <select class="admin-pageselect"
+                                  name="pageselect"
+                                  onchange="this.form.submit()"
+                                  value="">
+                              <?php
+                              for ($i=1; $i <= $countresults / $perpage + 1; $i++) {
+                                  if ($currentpage == $i) {
+                                      echo "<option value='$i' selected>$i</option>";
+                                  } else {
+                                      echo "<option value='$i'>$i</option>";
+                                  }
+                              }
+                              ?>
+                          </select>
+                    </form>
                     <input type="submit" name="next" value="next">
                 </div> <br>
 
                 <table class="usertable">
                     <tr>
                         <th class="table-checkbox">
-                            <input type="checkbox" name="checkall" onchange="checkAll(this)">
+                            <input type="checkbox" id="checkall" name="checkall" onchange="checkAll(this)">
                         </th>
                         <th class="table-username">User</th>
                         <th class="table-status">Status</th>
@@ -217,8 +263,11 @@ function test_input($data) {
 
                     <!-- Table construction via php PDO. -->
                     <?php
+                    $listn = ($currentpage-1) * 20;
+                    $listm = $currentpage * 20;
+
                     if ($pagetype == 'user') {
-                        $q = search20UsersFromNByStatus($db, $listnr, $search, $status);
+                        $q = searchSomeUsersByStatus($db, $listn, $listm, $search, $status);
 
                         while($user = $q->fetch(PDO::FETCH_ASSOC)) {
                             $userID = $user['userID'];
@@ -233,7 +282,8 @@ function test_input($data) {
                             name='checkbox-user[]'
                             class='checkbox-list'
                             value='$userID'
-                            form='admin-batchform'>
+                            form='admin-batchform'
+                            onchange='checkCheckAll(document.getElementById('checkall'))'>
                             </td>
                             <td>$username</td>
                             <td>$role</td>
@@ -255,7 +305,7 @@ function test_input($data) {
                             ");
                         }
                     } else {
-                        $q = search20GroupsFromNByStatus($db, $listnr, $search, $groupstatus);
+                        $q = search20GroupsFromNByStatus($db, $listn, $search, $groupstatus);
 
                         while ($group = $q->fetch(PDO::FETCH_ASSOC)) {
                             $groupID = $group['groupID'];
@@ -295,9 +345,6 @@ function test_input($data) {
                     ?>
                 </table>
             </div>
-        <pre>
-            <?php print_r($_POST); ?>
-        </pre>
     </div>
 </div>
 </body>