Editor: Allow disabling boolean fields in PostgreSQL (bug #640)

Author: vrana

changes.txt

@@ -3,6 +3,7 @@ Display the tables scrollbar (bug #647)
 Add autocomplete attributes to login form
 PHP <5.4 compatibility even with ClickHouse enabled (regression from 4.7.0)
 SQLite: Hide server field in login form
+Editor: Allow disabling boolean fields in PostgreSQL (bug #640)
 
 Adminer 4.7.0 (released 2018-11-24):
 Simplify storing executed SQL queries to bookmarks

editor/include/adminer.inc.php

@@ -485,7 +485,7 @@ function editInput($table, $field, $attrs, $value) {
 			);
 		}
 		if (like_bool($field)) {
-			return '<input type="checkbox" value="' . h($value ? $value : 1) . '"' . (preg_match('~^(1|t|true|y|yes|on)$~i', $value) ? ' checked' : '') . "$attrs>";
+			return '<input type="checkbox" value="1"' . (preg_match('~^(1|t|true|y|yes|on)$~i', $value) ? ' checked' : '') . "$attrs>";
 		}
 		$hint = "";
 		if (preg_match('~time~', $field["type"])) {
@@ -517,7 +517,7 @@ function processInput($field, $value, $function = "") {
 		}
 		$return = ($field["type"] == "bit" && preg_match('~^[0-9]+$~', $value) ? $return : q($return));
 		if ($value == "" && like_bool($field)) {
-			$return = "0";
+			$return = "'0'";
 		} elseif ($value == "" && ($field["null"] || !preg_match('~char|text~', $field["type"]))) {
 			$return = "NULL";
 		} elseif (preg_match('~^(md5|sha1)$~', $function)) {