Fix: logs page=0 error (#4460)

* add docs of function param()

* page < 0 is impossible now

* show prev/next only, when there is a prev/next page

* set always page params

* Revert "page < 0 is impossible now"

This reverts commit fdb920ee50.

* Update logs_pagination.phtml

app/Controllers/indexController.php

@@ -371,7 +371,7 @@ class FreshRSS_index_Controller extends FreshRSS_ActionController {
 		$logs = FreshRSS_LogDAO::lines();	//TODO: ask only the necessary lines
 
 		//gestion pagination
-		$page = Minz_Request::param('page', 1);
+		$page = intval(Minz_Request::param('page', 1));
 		$this->view->logsPaginator = new Minz_Paginator($logs);
 		$this->view->logsPaginator->_nbItemsPerPage(50);
 		$this->view->logsPaginator->_currentPage($page);

app/views/helpers/logs_pagination.phtml

@@ -17,9 +17,14 @@
 		</li>
 
 		<?php $params[$getteur] = $this->currentPage - 1; ?>
+
+		
 		<li class="item pager-previous">
+			<?php if ($this->currentPage > 1) { ?>
 			<a href="<?= Minz_Url::display(array('c' => $c, 'a' => $a, 'params' => $params)) ?>">‹ <?= _t('conf.logs.pagination.previous') ?></a>
+			<?php } ?>
 		</li>
+		
 
 		<?php if ($this->currentPage - 2 > 1) { ?>
 		<li class="item">…</a></li>
@@ -28,8 +33,8 @@
 		<?php
 		for ($i = $this->currentPage - 2; $i <= $this->currentPage + 2; $i++) {
 			if($i > 0 && $i <= $this->nbPage) {
+				$params[$getteur] = $i;
 				if ($i != $this->currentPage) {
-					$params[$getteur] = $i;
 					$class = '';
 					$aria = 'false';
 				} else {
@@ -46,9 +51,13 @@
 		<?php } ?>
 
 		<?php $params[$getteur] = $this->currentPage + 1; ?>
+		
 		<li class="item pager-next">
+			<?php if ($this->currentPage < $this->nbPage) { ?>
 			<a href="<?= Minz_Url::display(array('c' => $c, 'a' => $a, 'params' => $params)) ?>"><?= _t('conf.logs.pagination.next') ?> ›</a>
+			<?php } ?>
 		</li>
+		
 		<?php $params[$getteur] = $this->nbPage; ?>
 		<li class="item pager-last">
 			<a href="<?= Minz_Url::display(array('c' => $c, 'a' => $a, 'params' => $params)) ?>"><?= _t('conf.logs.pagination.last') ?> »</a>

lib/Minz/Request.php

@@ -27,6 +27,13 @@ class Minz_Request {
 	public static function params() {
 		return self::$params;
 	}
+	/**
+	 * Read the URL parameter
+	 * @param string $key Key name
+	 * @param mixed $default default value, if no parameter is given
+	 * @param bool $specialchars special characters
+	 * @return mixed value of the parameter
+	 */
 	public static function param($key, $default = false, $specialchars = false) {
 		if (isset(self::$params[$key])) {
 			$p = self::$params[$key];