Warn about exceeded max_file_uploads in import

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## Adminer dev
 - Allow specifying operator in search anywhere
+- Warn about exceeded max_file_uploads in import
 - MySQL 5.0-: Do not load partitioning info in alter table (bug #1099)
 - PostgreSQL: Show structure of inherited tables
 - PostgreSQL: Hide only partitions, not all inherited tables from menu

adminer/lang/cs.inc.php

@@ -76,6 +76,7 @@ Lang::$translations = array(
 	'Webserver file %s' => 'Soubor %s na webovém serveru',
 	'Run file' => 'Spustit soubor',
 	'File does not exist.' => 'Soubor neexistuje.',
+	'Increase %s.' => 'Zvyšte %s.',
 	'File uploads are disabled.' => 'Nahrávání souborů není povoleno.',
 	'Unable to upload a file.' => 'Nepodařilo se nahrát soubor.',
 	'Maximum allowed file size is %sB.' => 'Maximální povolená velikost souboru je %sB.',

adminer/lang/xx.inc.php

@@ -77,6 +77,7 @@ Lang::$translations = array(
 	'Webserver file %s' => 'Xx %s',
 	'Run file' => 'Xx',
 	'File does not exist.' => 'Xx.',
+	'Increase %s.' => 'Xx %s.',
 	'File uploads are disabled.' => 'Xx.',
 	'Unable to upload a file.' => 'Xx.',
 	'Maximum allowed file size is %sB.' => 'Xx %sB.',

adminer/sql.inc.php

@@ -250,8 +250,11 @@ if (!isset($_GET["import"])) {
 } else {
 	echo "<fieldset><legend>" . lang('File upload') . "</legend><div>";
 	$gz = (extension_loaded("zlib") ? "[.gz]" : "");
+	$max_file_uploads = "max_file_uploads";
+	$max_file_uploads_value = ini_get($max_file_uploads);
 	echo (ini_bool("file_uploads")
-		? "SQL$gz (&lt; " . ini_get("upload_max_filesize") . "B): <input type='file' name='sql_file[]' multiple>\n$execute" // ignore post_max_size because it is for all form fields together and bytes computing would be necessary
+		? "SQL$gz (&lt; " . ini_get("upload_max_filesize") . "B): <input type='file' name='sql_file[]' multiple>\n" // ignore post_max_size because it is for all form fields together and bytes computing would be necessary
+			. script("qsl('input').onchange = partialArg(fileChange, $max_file_uploads_value, '" . lang('Increase %s.', "$max_file_uploads = $max_file_uploads_value") . "')") . $execute
 		: lang('File uploads are disabled.')
 	);
 	echo "</div></fieldset>\n";

adminer/static/editing.js

@@ -665,6 +665,17 @@ function sqlSubmit(form, root) {
 	}
 }
 
+/** Check if PHP can handle the uploaded files
+* @param number
+* @param string
+* @param Event
+*/
+function fileChange(event, maxFileUploads, message) {
+	if (event.target.files.length > maxFileUploads) {
+		alert(message);
+	}
+}
+
 
 
 /** Handle changing trigger time or event