Dynamic OPML (#4407)

* Dynamic OPML draft
#fix https://github.com/FreshRSS/FreshRSS/issues/4191

* Export dynamic OPML
http://opml.org/spec2.opml#1629043127000

* Restart with simpler approach

* Minor revert

* Export dynamic OPML also for single feeds

* Special category type for importing dynamic OPML

* Parameter for excludeMutedFeeds

* Details

* More draft

* i18n

* Fix update

* Draft manual import working

* Working manual refresh

* Draft automatic update

* Working Web refresh + fixes

* Import/export dynamic OPML settings

* Annoying numerous lines in SQL logs

* Fix minor JavaScript error

* Fix auto adding new columns

* Add require

* Add missing 🗲

* Missing space

* Disable adding new feeds to dynamic categories

* Link from import

* i18n typo

* Improve theme icon function

* Fix pink-dark

1 files changed, 15 insertions, 2 deletions

diff --git a/app/Models/Context.php b/app/Models/Context.php
index 55607f5c4..ab855966b 100644
--- a/app/Models/Context.php
+++ b/app/Models/Context.php
@@ -198,6 +198,20 @@ class FreshRSS_Context {
 	}
 
 	/**
+	 * @return bool true if the current request targets all feeds (main view), false otherwise.
+	 */
+	public static function isAll(): bool {
+		return self::$current_get['all'] != false;
+	}
+
+	/**
+	 * @return bool true if the current request targets a category, false otherwise.
+	 */
+	public static function isCategory(): bool {
+		return self::$current_get['category'] != false;
+	}
+
+	/**
 	 * @return bool true if the current request targets a feed (and not a category or all articles), false otherwise.
 	 */
 	public static function isFeed(): bool {
@@ -251,8 +265,7 @@ class FreshRSS_Context {
 	 */
 	public static function _get($get) {
 		$type = $get[0];
-		$id = substr($get, 2);
-		$nb_unread = 0;
+		$id = intval(substr($get, 2));
 
 		if (empty(self::$categories)) {
 			$catDAO = FreshRSS_Factory::createCategoryDao();