Added alternates/changeLogEntry block

Updates #9

blocks/html/alternates/changeLogEntry.inc

@@ -0,0 +1,73 @@
+<?php
+/**
+ * @copyright 2017-2022 City of Bloomington, Indiana
+ * @license http://www.gnu.org/licenses/agpl.txt GNU/AGPL, see LICENSE
+ * @param array $this->change  Array of JSON data for the change
+ */
+declare (strict_types=1);
+use Application\Models\CommitteeHistory;
+use Application\Models\Seat;
+use Application\Models\Term;
+use Application\Models\Person;
+
+foreach (CommitteeHistory::$states as $state) {
+    if (    isset($this->change[$state]) && count($this->change[$state])) {
+        $change = $this->change[$state];
+        $seat   = null;
+        $term   = null;
+        $person = null;
+
+        if (!empty($change['seat_id'])) {
+            try { $seat = new Seat($change['seat_id']); }
+            catch (\Exception $e) {
+                // The seat may no longer exist
+            }
+        }
+
+        if (!empty($change['term_id'])) {
+            try { $term = new Term($change['term_id']); }
+            catch (\Exception $e) {
+                // The term may no longer exist
+            }
+        }
+
+        if (!empty($change['person_id'])) {
+            try                  { $person = new Person($change['person_id']); }
+            catch(\Exception $e) { $person = new Person(['firstname'=>'Unknown', 'lastname'=>'Person']); }
+        }
+
+        $$state = [
+            'id'        => !empty($change['id']) ? $change['id'] : '',
+            'person'    => $person ? parent::escape($person->getFullname()) : '',
+            'seat'      => $seat   ? parent::escape($seat->getName()) : '',
+            'term'      => $term   ? "{$term->getStartDate(DATE_FORMAT)} - {$term->getEndDate(DATE_FORMAT)}" : '',
+            'startDate' => isset($change['startDate']) ? $change['startDate'] : '',
+            'endDate'   => isset($change['endDate'  ]) ? $change['endDate'  ] : ''
+        ];
+        if (!isset($keys)) { $keys = array_keys($$state); }
+    }
+    else { unset($$state); }
+}
+?>
+<table>
+    <thead>
+        <tr><th></th>
+        <?php
+            foreach (CommitteeHistory::$states as $state) {
+                if (isset($$state)) { echo "<th>{$this->_($state)}</th>"; }
+            }
+        ?>
+        </tr>
+    </thead>
+    <tbody>
+    <?php
+        foreach ($keys as $k) {
+            echo "<tr><th>$k</th>";
+            foreach (CommitteeHistory::$states as $state) {
+                if (isset($$state)) { echo "<td>{$$state[$k]}</td>"; }
+            }
+            echo '</tr>';
+        }
+    ?>
+    </tbody>
+</table>