PostgreSQL compatibility boolean

https://github.com/FreshRSS/FreshRSS/issues/1311

app/Models/EntryDAO.php

@@ -273,15 +273,19 @@ class FreshRSS_EntryDAO extends Minz_ModelPdo implements FreshRSS_Searchable {
 		 .	'WHERE e.is_read=0 '
 		 .	'GROUP BY e.id_feed'
 		 . ') x ON x.id_feed=f.id '
-		 . 'SET f.`cache_nbUnreads`=COALESCE(x.nbUnreads, 0) '
+		 . 'SET f.`cache_nbUnreads`=COALESCE(x.nbUnreads, 0)';
-		 . 'WHERE 1';
+		$hasWhere = false;
 		$values = array();
 		if ($feedId !== false) {
-			$sql .= ' AND f.id=?';
+			$sql .= $hasWhere ? ' AND' : ' WHERE';
+			$hasWhere = true;
+			$sql .= ' f.id=?';
 			$values[] = $id;
 		}
 		if ($catId !== false) {
-			$sql .= ' AND f.category=?';
+			$sql .= $hasWhere ? ' AND' : ' WHERE';
+			$hasWhere = true;
+			$sql .= ' f.category=?';
 			$values[] = $catId;
 		}
 		$stm = $this->bd->prepare($sql);

app/Models/EntryDAOSQLite.php

@@ -30,15 +30,19 @@ class FreshRSS_EntryDAOSQLite extends FreshRSS_EntryDAO {
 		$sql = 'UPDATE `' . $this->prefix . 'feed` '
 		 . 'SET `cache_nbUnreads`=('
 		 .	'SELECT COUNT(*) AS nbUnreads FROM `' . $this->prefix . 'entry` e '
-		 .	'WHERE e.id_feed=`' . $this->prefix . 'feed`.id AND e.is_read=0) '
+		 .	'WHERE e.id_feed=`' . $this->prefix . 'feed`.id AND e.is_read=0)';
-		 . 'WHERE 1';
+		$hasWhere = false;
 		$values = array();
 		if ($feedId !== false) {
-			$sql .= ' AND id=?';
+			$sql .= $hasWhere ? ' AND' : ' WHERE';
+			$hasWhere = true;
+			$sql .= ' id=?';
 			$values[] = $feedId;
 		}
 		if ($catId !== false) {
-			$sql .= ' AND category=?';
+			$sql .= $hasWhere ? ' AND' : ' WHERE';
+			$hasWhere = true;
+			$sql .= ' category=?';
 			$values[] = $catId;
 		}
 		$stm = $this->bd->prepare($sql);