new feed action: clear articles

functions.php

@@ -4696,4 +4696,12 @@
 		return $url_path;
 	}
 
+	function clear_feed_articles($link, $id) {
+		$result = db_query($link, "DELETE FROM ttrss_user_entries
+			WHERE feed_id = '$id' AND marked = false");
+
+		$result = db_query($link, "DELETE FROM ttrss_entries WHERE 
+			(SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
+	}
+
 ?>

localized_js.php

@@ -124,8 +124,8 @@ print T_js_decl("Unstar article");
 print T_js_decl("Please wait...");
 print T_js_decl("Publish article");
 print T_js_decl("Unpublish article");
-#print T_js_decl(
+print T_js_decl("You can't clear this type of feed.");
-#print T_js_decl(
+print T_js_decl("Remove all (except starred) stored articles for %s?");
 #print T_js_decl(
 #print T_js_decl(
 #print T_js_decl(

modules/pref-feeds.php

@@ -451,6 +451,11 @@
 			}
 		}
 
+		if ($subop == "clear") {
+			$id = db_escape_string($_GET["id"]);
+			clear_feed_articles($link, $id);
+		}
+
 		if ($subop == "add") {
 		
 			if (!WEB_DEMO_MODE) {

tt-rss.js

@@ -460,7 +460,32 @@ function quickMenuGo(opid) {
 		
 			return;
 		}
+
+		if (opid == "qmcClearFeed") {
+			var actid = getActiveFeedId();
+
+			if (!actid) {
+				alert(__("Please select some feed first."));
+				return;
+			}
+
+			if (activeFeedIsCat() || actid < 0) {
+				alert(__("You can't clear this type of feed."));
+				return;
+			}	
+
+			var fn = getFeedName(actid);
+
+			var pr = __("Remove all (except starred) stored articles for %s?").replace("%s", fn);
+
+			if (confirm(pr)) {
+				clearFeedArticles(actid);
+			}
+		
+			return;
+		}
 	
+
 		if (opid == "qmcUpdateFeeds") {
 			scheduleFeedUpdate(true);
 			return;
@@ -500,6 +525,20 @@ function qfdDelete(feed_id) {
 	return false;
 }
 
+function clearFeedArticles(feed_id) {
+
+	notify_progress("Clearing feed...");
+
+	var query = "backend.php?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
+
+	new Ajax.Request(query,	{
+		onComplete: function(transport) {
+				dlg_frefresh_callback(transport, feed_id);
+			} });
+
+	return false;
+}
+
 
 function updateFeedTitle(t) {
 	active_title_text = t;

tt-rss.php

@@ -134,6 +134,7 @@ window.onload = init;
 					<option style="color : #5050aa" disabled><?php echo __('Feed actions:') ?></option>
 					<option value="qmcAddFeed"><?php echo __('&nbsp;&nbsp;Subscribe to feed') ?></option>
 					<option value="qmcEditFeed"><?php echo __('&nbsp;&nbsp;Edit this feed') ?></option>
+					<option value="qmcClearFeed"><?php echo __('&nbsp;&nbsp;Clear articles') ?></option>
 					<option value="qmcRemoveFeed"><?php echo __('&nbsp;&nbsp;Unsubscribe') ?></option>
 					<!-- <option>Edit this feed</option> -->
 					<option disabled>--------</option>