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BUGFIX Don't scaffold has_one relations into a DropdownField in ForeignKey->scaffoldFormField() if more than 100 records would be created, to avoid exceeding PHP memory (fixes #6776)

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This commit is contained in:
Ingo Schommer 2012-03-09 15:58:46 +01:00
parent dd517c49ba
commit 4b8895c8b6
1 changed files with 9 additions and 2 deletions
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11
model/fieldtypes/ForeignKey.php
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@ -37,8 +37,15 @@ class ForeignKey extends Int {
$field = new UploadField($relationName, $title);
} else {
$titleField = (singleton($hasOneClass)->hasField('Title')) ? "Title" : "Name";
$map = DataList::create($hasOneClass)->map("ID", $titleField);
$field = new DropdownField($this->name, $title, $map, null, null, ' ');
$list = DataList::create($hasOneClass);
// Don't scaffold a dropdown for large tables, as making the list concrete
// might exceed the available PHP memory in creating too many DataObject instances
if($list->count() < 100) {
$field = new DropdownField($this->name, $title, $list->map("ID", $titleField), null, null, ' ');
} else {
$field = new NumericField($this->name, $title);
}
}
return $field;