Add to search UI the user modification date (#8122)

* Add to search UI the user modification date
Follow-up of:
* https://github.com/FreshRSS/FreshRSS/pull/8103
* https://github.com/FreshRSS/FreshRSS/pull/8093

* Easier UI to cancel filtering by date

* Add blank <option> to ease deselection of <select>

31 files changed, 88 insertions, 4 deletions

diff --git a/README.fr.md b/README.fr.md
index fced3b8ed..10ce64d4c 100644
--- a/README.fr.md
+++ b/README.fr.md
@@ -231,7 +231,7 @@ Voir le [dépôt dédié à ces extensions](https://github.com/FreshRSS/Extensio
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 | English (en) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fen+%2F%28TODO%7CDIRTY%29%24%2F) |
 | English (United States) (en-US) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fen-US+%2F%28TODO%7CDIRTY%29%24%2F) |
-| Español (es) | ￭￭￭￭￭￭￭￭･･ 89% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fes+%2F%28TODO%7CDIRTY%29%24%2F) |
+| Español (es) | ￭￭￭￭￭￭￭￭･･ 88% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fes+%2F%28TODO%7CDIRTY%29%24%2F) |
 | فارسی (fa) | ￭￭￭￭￭￭￭￭￭･ 94% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Ffa+%2F%28TODO%7CDIRTY%29%24%2F) |
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 | Français (fr) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribuer](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Ffr+%2F%28TODO%7CDIRTY%29%24%2F) |
diff --git a/README.md b/README.md
index 27430383a..adc9101cc 100644
--- a/README.md
+++ b/README.md
@@ -127,7 +127,7 @@ See the [repository dedicated to those extensions](https://github.com/FreshRSS/E
 | Ελληνικά (el) | ￭￭････････ 22% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fel+%2F%28TODO%7CDIRTY%29%24%2F) |
 | English (en) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fen+%2F%28TODO%7CDIRTY%29%24%2F) |
 | English (United States) (en-US) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fen-US+%2F%28TODO%7CDIRTY%29%24%2F) |
-| Español (es) | ￭￭￭￭￭￭￭￭･･ 89% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fes+%2F%28TODO%7CDIRTY%29%24%2F) |
+| Español (es) | ￭￭￭￭￭￭￭￭･･ 88% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Fes+%2F%28TODO%7CDIRTY%29%24%2F) |
 | فارسی (fa) | ￭￭￭￭￭￭￭￭￭･ 94% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Ffa+%2F%28TODO%7CDIRTY%29%24%2F) |
 | Suomi (fi) | ￭￭￭￭￭￭￭￭￭･ 97% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Ffi+%2F%28TODO%7CDIRTY%29%24%2F) |
 | Français (fr) | ￭￭￭￭￭￭￭￭￭￭ 100% | [contribute](https://github.com/search?q=repo%3AFreshRSS%2FFreshRSS+path%3Aapp%2Fi18n%2Ffr+%2F%28TODO%7CDIRTY%29%24%2F) |
diff --git a/app/Controllers/searchController.php b/app/Controllers/searchController.php
index 19ec04606..616c4c878 100644
--- a/app/Controllers/searchController.php
+++ b/app/Controllers/searchController.php
@@ -149,6 +149,27 @@ class FreshRSS_search_Controller extends FreshRSS_ActionController {
 			}
 		}
 
+		// User modification date
+		$userDateFrom = trim(Minz_Request::paramString('userdate_from'));
+		$userDateTo = trim(Minz_Request::paramString('userdate_to'));
+		$userDateNumber = Minz_Request::paramInt('userdate_number');
+		$userDateUnit = trim(Minz_Request::paramString('userdate_unit'));
+
+		if ($userDateNumber > 0 && $userDateUnit !== '') {
+			// Convert to ISO 8601 duration format: P1D, P1W, P1M, PT1H, etc.
+			// Time units (H, M, S) require a T separator
+			$prefix = ($userDateUnit === 'H' || $userDateUnit === 'M' || $userDateUnit === 'S') ? 'PT' : 'P';
+			$searchTerms[] = "userdate:{$prefix}{$userDateNumber}{$userDateUnit}";
+		} elseif ($userDateFrom !== '' || $userDateTo !== '') {
+			if ($userDateFrom !== '' && $userDateTo !== '') {
+				$searchTerms[] = "userdate:$userDateFrom/$userDateTo";
+			} elseif ($userDateFrom !== '') {
+				$searchTerms[] = "userdate:$userDateFrom/";
+			} elseif ($userDateTo !== '') {
+				$searchTerms[] = "userdate:/$userDateTo";
+			}
+		}
+
 		$feedIds = Minz_Request::paramArrayInt('feed_ids');
 		if (!empty($feedIds)) {
 			$searchTerms[] = 'f:' . implode(',', $feedIds);
diff --git a/app/i18n/cs/gen.php b/app/i18n/cs/gen.php
index e61682441..586fcdd8a 100644
--- a/app/i18n/cs/gen.php
+++ b/app/i18n/cs/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/de/gen.php b/app/i18n/de/gen.php
index 6ed055259..b80a83f82 100644
--- a/app/i18n/de/gen.php
+++ b/app/i18n/de/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/el/gen.php b/app/i18n/el/gen.php
index cee4a0aea..18c4898cd 100644
--- a/app/i18n/el/gen.php
+++ b/app/i18n/el/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/en-US/gen.php b/app/i18n/en-US/gen.php
index 840241926..14cd8ce89 100644
--- a/app/i18n/en-US/gen.php
+++ b/app/i18n/en-US/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// IGNORE
 		'date_received' => 'Received Date',	// IGNORE
 		'date_to' => 'To',	// IGNORE
+		'date_user' => 'User Modification Date',	// IGNORE
 		'feeds' => 'Feeds',	// IGNORE
 		'free_text' => 'Free Text',	// IGNORE
 		'free_text_help' => 'Search both in title and content',	// IGNORE
diff --git a/app/i18n/en/gen.php b/app/i18n/en/gen.php
index 2f888f7ee..49d44ec46 100644
--- a/app/i18n/en/gen.php
+++ b/app/i18n/en/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',
 		'date_received' => 'Received Date',
 		'date_to' => 'To',
+		'date_user' => 'User Modification Date',
 		'feeds' => 'Feeds',
 		'free_text' => 'Free Text',
 		'free_text_help' => 'Search both in title and content',
diff --git a/app/i18n/es/gen.php b/app/i18n/es/gen.php
index ec8ce0cc8..df8a3716b 100644
--- a/app/i18n/es/gen.php
+++ b/app/i18n/es/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/fa/gen.php b/app/i18n/fa/gen.php
index 9674748ac..0cbe51e78 100644
--- a/app/i18n/fa/gen.php
+++ b/app/i18n/fa/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/fi/gen.php b/app/i18n/fi/gen.php
index cad2587f1..8be7608f6 100644
--- a/app/i18n/fi/gen.php
+++ b/app/i18n/fi/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/fr/gen.php b/app/i18n/fr/gen.php
index caaa3291a..6df408426 100644
--- a/app/i18n/fr/gen.php
+++ b/app/i18n/fr/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Plage de dates',
 		'date_received' => 'Date de réception',
 		'date_to' => 'À',
+		'date_user' => 'Date de modification par l’utilisateur',
 		'feeds' => 'Flux',
 		'free_text' => 'Texte libre',
 		'free_text_help' => 'Rechercher dans le titre et le contenu',
diff --git a/app/i18n/he/gen.php b/app/i18n/he/gen.php
index 1c91e60c9..bf95a007c 100644
--- a/app/i18n/he/gen.php
+++ b/app/i18n/he/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/hu/gen.php b/app/i18n/hu/gen.php
index 56388733f..96b132a55 100644
--- a/app/i18n/hu/gen.php
+++ b/app/i18n/hu/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/id/gen.php b/app/i18n/id/gen.php
index 11b55044a..82bfdaccb 100644
--- a/app/i18n/id/gen.php
+++ b/app/i18n/id/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/it/gen.php b/app/i18n/it/gen.php
index eca46db04..bf539d249 100644
--- a/app/i18n/it/gen.php
+++ b/app/i18n/it/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/ja/gen.php b/app/i18n/ja/gen.php
index a8d9dd1c6..60dc9c6ba 100644
--- a/app/i18n/ja/gen.php
+++ b/app/i18n/ja/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/ko/gen.php b/app/i18n/ko/gen.php
index d12422dc8..770b6c9be 100644
--- a/app/i18n/ko/gen.php
+++ b/app/i18n/ko/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/lv/gen.php b/app/i18n/lv/gen.php
index a94610be0..93176d737 100644
--- a/app/i18n/lv/gen.php
+++ b/app/i18n/lv/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/nl/gen.php b/app/i18n/nl/gen.php
index 02aa06a5c..3da2879d5 100644
--- a/app/i18n/nl/gen.php
+++ b/app/i18n/nl/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/oc/gen.php b/app/i18n/oc/gen.php
index b1382dac7..68e2a5124 100644
--- a/app/i18n/oc/gen.php
+++ b/app/i18n/oc/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/pl/gen.php b/app/i18n/pl/gen.php
index 1423295b6..baa288d1f 100644
--- a/app/i18n/pl/gen.php
+++ b/app/i18n/pl/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/pt-BR/gen.php b/app/i18n/pt-BR/gen.php
index 664b543b1..24401aecb 100644
--- a/app/i18n/pt-BR/gen.php
+++ b/app/i18n/pt-BR/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/pt-PT/gen.php b/app/i18n/pt-PT/gen.php
index a4d0cf5fd..3a1204082 100644
--- a/app/i18n/pt-PT/gen.php
+++ b/app/i18n/pt-PT/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/ru/gen.php b/app/i18n/ru/gen.php
index 42aec9283..57796e03e 100644
--- a/app/i18n/ru/gen.php
+++ b/app/i18n/ru/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/sk/gen.php b/app/i18n/sk/gen.php
index 569763a18..444ad67f3 100644
--- a/app/i18n/sk/gen.php
+++ b/app/i18n/sk/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/tr/gen.php b/app/i18n/tr/gen.php
index 13714a004..27e1baa40 100644
--- a/app/i18n/tr/gen.php
+++ b/app/i18n/tr/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/uk/gen.php b/app/i18n/uk/gen.php
index bc7f29d37..593b51d07 100644
--- a/app/i18n/uk/gen.php
+++ b/app/i18n/uk/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/zh-CN/gen.php b/app/i18n/zh-CN/gen.php
index 56f3292d8..96599d8e9 100644
--- a/app/i18n/zh-CN/gen.php
+++ b/app/i18n/zh-CN/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/i18n/zh-TW/gen.php b/app/i18n/zh-TW/gen.php
index 2f68c6bd8..7f1a68e8b 100644
--- a/app/i18n/zh-TW/gen.php
+++ b/app/i18n/zh-TW/gen.php
@@ -233,6 +233,7 @@ return array(
 		'date_range' => 'Date Range',	// TODO
 		'date_received' => 'Received Date',	// TODO
 		'date_to' => 'To',	// TODO
+		'date_user' => 'User Modification Date',	// TODO
 		'feeds' => 'Feeds',	// TODO
 		'free_text' => 'Free Text',	// TODO
 		'free_text_help' => 'Search both in title and content',	// TODO
diff --git a/app/views/search/index.phtml b/app/views/search/index.phtml
index 1d9222f23..fb64b0524 100644
--- a/app/views/search/index.phtml
+++ b/app/views/search/index.phtml
@@ -67,7 +67,7 @@
 				<div class="group-controls">
 					<div>
 						<label for="date_number"><?= _t('gen.search.date_past') ?>
-							<input id="date_number" name="date_number" type="number" min="1" placeholder="1" />
+							<input id="date_number" name="date_number" type="number" min="0" placeholder="0" />
 							<select id="date_unit" name="date_unit">
 								<option value="H"><?= _t('gen.period.hours') ?></option>
 								<option value="D"><?= _t('gen.period.days') ?></option>
@@ -85,7 +85,7 @@
 				<div class="group-controls">
 					<div>
 						<label for="pubdate_number"><?= _t('gen.search.date_past') ?>
-							<input id="pubdate_number" name="pubdate_number" type="number" min="1" placeholder="1" />
+							<input id="pubdate_number" name="pubdate_number" type="number" min="0" placeholder="0" />
 							<select id="pubdate_unit" name="pubdate_unit">
 								<option value="H"><?= _t('gen.period.hours') ?></option>
 								<option value="D"><?= _t('gen.period.days') ?></option>
@@ -97,6 +97,24 @@
 					</div>
 				</div>
 			</div>
+
+			<div class="form-group">
+				<label class="group-name"><?= _t('gen.search.date_user') ?></label>
+				<div class="group-controls">
+					<div>
+						<label for="userdate_number"><?= _t('gen.search.date_past') ?>
+							<input id="userdate_number" name="userdate_number" type="number" min="0" placeholder="0" />
+							<select id="userdate_unit" name="userdate_unit">
+								<option value="H"><?= _t('gen.period.hours') ?></option>
+								<option value="D"><?= _t('gen.period.days') ?></option>
+								<option value="W"><?= _t('gen.period.weeks') ?></option>
+								<option value="M"><?= _t('gen.period.months') ?></option>
+								<option value="Y"><?= _t('gen.period.years') ?></option>
+							</select>
+						</label>
+					</div>
+				</div>
+			</div>
 		</fieldset>
 
 		<fieldset>
@@ -129,6 +147,20 @@
 					</div>
 				</div>
 			</div>
+
+			<div class="form-group">
+				<label class="group-name"><?= _t('gen.search.date_user') ?></label>
+				<div class="group-controls">
+					<div>
+						<label for="userdate_from"><?= _t('gen.search.date_from') ?>
+							<input id="userdate_from" name="userdate_from" type="date" />
+						</label>
+						<label for="userdate_to"><?= _t('gen.search.date_to') ?>
+							<input id="userdate_to" name="userdate_to" type="date" />
+						</label>
+					</div>
+				</div>
+			</div>
 		</fieldset>
 
 		<fieldset>
@@ -138,6 +170,7 @@
 				<label class="group-name" for="feed_ids"><?= _t('gen.search.feeds') ?></label>
 				<div class="group-controls">
 					<select name="feed_ids[]" id="feed_ids" size="<?= min(8, count($this->feeds) + 1) ?>" multiple="multiple">
+						<option value=""></option>
 						<?php foreach ($this->feeds as $feed): ?>
 						<option value="<?= $feed->id() ?>"><?= $feed->name() ?></option>
 						<?php endforeach; ?>
@@ -149,6 +182,7 @@
 				<label class="group-name" for="category_ids"><?= _t('gen.search.categories') ?></label>
 				<div class="group-controls">
 					<select name="category_ids[]" id="category_ids" size="<?= min(8, count($this->categories) + 1) ?>" multiple="multiple">
+						<option value=""></option>
 						<?php foreach ($this->categories as $category): ?>
 						<option value="<?= $category->id() ?>"><?= $category->name() ?></option>
 						<?php endforeach; ?>
@@ -165,6 +199,7 @@
 				<label class="group-name" for="label_ids"><?= _t('gen.search.labels') ?></label>
 				<div class="group-controls">
 					<select name="label_ids[]" id="label_ids" size="<?= min(8, count($this->labels) + 1) ?>" multiple="multiple">
+						<option value=""></option>
 						<?php foreach ($this->labels as $label): ?>
 						<option value="<?= $label->id() ?>"><?= $label->name() ?></option>
 						<?php endforeach; ?>
@@ -181,6 +216,7 @@
 				<label class="group-name" for="user_query_ids"><?= _t('gen.search.user_queries') ?></label>
 				<div class="group-controls">
 					<select name="user_query_ids[]" id="user_query_ids" size="<?= min(8, count($this->queries) + 1) ?>" multiple="multiple">
+						<option value=""></option>
 						<?php foreach ($this->queries as $key => $query): ?>
 						<option value="<?= $key ?>"><?= $query->getName() ?></option>
 						<?php endforeach; ?>