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MDL-59323 XMLDB: Check defaults work incorrectly with char fields

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This commit is contained in:
sam marshall 2017-07-13 11:17:05 +01:00
parent 94904cc323
commit 12f7d77cc6
1 changed files with 30 additions and 6 deletions
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36
admin/tool/xmldb/actions/check_defaults/check_defaults.class.php
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@ -66,6 +66,15 @@ class check_defaults extends XMLDBCheckAction {
// Get the default value for the field.
$xmldbdefault = $xmldbfield->getDefault();
// Char fields with not null currently have default '' when actually installed.
if ($xmldbdefault === null && $xmldbfield->getType() === XMLDB_TYPE_CHAR &&
$xmldbfield->getNotNull()) {
$xmldbdefault = '';
}
if ($xmldbdefault !== null) {
$xmldbdefault = (string)$xmldbdefault;
}
// If the metadata for that column doesn't exist or 'id' field found, skip.
if (!isset($metacolumns[$xmldbfield->getName()]) or $xmldbfield->getName() == 'id') {
continue;
@ -81,13 +90,14 @@ class check_defaults extends XMLDBCheckAction {
if ($metacolumn->has_default == 1) {
$physicaldefault = $metacolumn->default_value;
} else {
$physicaldefault = '';
$physicaldefault = null;
}
// There *is* a default and it's wrong.
if ($physicaldefault != $xmldbdefault) {
$info = '('.$this->str['expected']." '$xmldbdefault', ".$this->str['actual'].
" '$physicaldefault')";
if ($physicaldefault !== $xmldbdefault) {
$xmldbtext = self::display_default($xmldbdefault);
$physicaltext = self::display_default($physicaldefault);
$info = "({$this->str['expected']} {$xmldbtext}, {$this->str['actual']} {$physicaltext})";
$o .= '<font color="red">' . $this->str['wrong'] . " $info</font>";
// Add the wrong field to the list.
$obj = new stdClass();
@ -107,6 +117,20 @@ class check_defaults extends XMLDBCheckAction {
return array($o, $wrongfields);
}
/**
* Converts a default value suitable for display.
*
* @param string|null $defaultvalue Default value
* @return string Displayed version
*/
protected static function display_default($defaultvalue) {
if ($defaultvalue === null) {
return '-';
} else {
return "'" . s($defaultvalue) . "'";
}
}
protected function display_results(array $wrongfields) {
global $DB;
$dbman = $DB->get_manager();
@ -126,8 +150,8 @@ class check_defaults extends XMLDBCheckAction {
foreach ($wrongfields as $obj) {
$xmldbtable = $obj->table;
$xmldbfield = $obj->field;
$physicaldefault = $obj->physicaldefault;
$xmldbdefault = $obj->xmldbdefault;
$physicaltext = self::display_default($obj->physicaldefault);
$xmldbtext = self::display_default($obj->xmldbdefault);
// Get the alter table command.
$sqlarr = $dbman->generator->getAlterFieldSQL($xmldbtable, $xmldbfield);