Implement negation for searching by date intervals (#2869)

* Implement negation for searching by date intervals

#fix https://github.com/FreshRSS/FreshRSS/issues/2866
Allow searching for e.g. `!date:P1W` to exlude all articles newer than
one week.
More generally, allows exclusion on some date intervals.

* Fix OR

1 files changed, 32 insertions, 0 deletions

diff --git a/app/Models/EntryDAO.php b/app/Models/EntryDAO.php
index ebe530ec1..1cca5cd75 100644
--- a/app/Models/EntryDAO.php
+++ b/app/Models/EntryDAO.php
@@ -720,6 +720,38 @@ SQL;
 					$values[] = $filter->getMaxPubdate();
 				}
 
+				//Negation of date intervals must be combined by OR
+				if ($filter->getNotMinDate() || $filter->getNotMaxDate()) {
+					$sub_search .= 'AND (';
+					if ($filter->getNotMinDate()) {
+						$sub_search .= $alias . 'id < ?';
+						$values[] = "{$filter->getNotMinDate()}000000";
+						if ($filter->getNotMaxDate()) {
+							$sub_search .= ' OR ';
+						}
+					}
+					if ($filter->getNotMaxDate()) {
+						$sub_search .= $alias . 'id > ?';
+						$values[] = "{$filter->getNotMaxDate()}000000";
+					}
+					$sub_search .= ') ';
+				}
+				if ($filter->getNotMinPubdate() || $filter->getNotMaxPubdate()) {
+					$sub_search .= 'AND (';
+					if ($filter->getNotMinPubdate()) {
+						$sub_search .= $alias . 'date < ?';
+						$values[] = $filter->getNotMinPubdate();
+						if ($filter->getNotMaxPubdate()) {
+							$sub_search .= ' OR ';
+						}
+					}
+					if ($filter->getNotMaxPubdate()) {
+						$sub_search .= $alias . 'date > ?';
+						$values[] = $filter->getNotMaxPubdate();
+					}
+					$sub_search .= ') ';
+				}
+
 				if ($filter->getAuthor()) {
 					foreach ($filter->getAuthor() as $author) {
 						$sub_search .= 'AND ' . $alias . 'author LIKE ? ';