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https://github.com/silverstripe/silverstripe-framework
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Fixing performance of DataObject::custom_database_fields()
On sites with lots of modules, and pages with plenty of database queries, DataObject::custom_database_fields() can be called thousands of times, and slow down page render times. This fixes it so the fields are cached by class in a static variable, and are cleared when reset() is called on the DataObject.
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@ -148,6 +148,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
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protected static $_cache_get_one;
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protected static $_cache_get_one;
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protected static $_cache_get_class_ancestry;
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protected static $_cache_get_class_ancestry;
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protected static $_cache_composite_fields = array();
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protected static $_cache_composite_fields = array();
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protected static $_cache_custom_database_fields = array();
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protected static $_cache_field_labels = array();
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protected static $_cache_field_labels = array();
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/**
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/**
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@ -226,6 +227,10 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
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* @return array Map of fieldname to specification, similiar to {@link DataObject::$db}.
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* @return array Map of fieldname to specification, similiar to {@link DataObject::$db}.
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*/
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*/
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public static function custom_database_fields($class) {
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public static function custom_database_fields($class) {
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if(isset(self::$_cache_custom_database_fields[$class])) {
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return self::$_cache_custom_database_fields[$class];
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}
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$fields = Config::inst()->get($class, 'db', Config::UNINHERITED);
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$fields = Config::inst()->get($class, 'db', Config::UNINHERITED);
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foreach(self::composite_fields($class, false) as $fieldName => $fieldClass) {
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foreach(self::composite_fields($class, false) as $fieldName => $fieldClass) {
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@ -245,7 +250,11 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
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$fields[$field . 'ID'] = 'ForeignKey';
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$fields[$field . 'ID'] = 'ForeignKey';
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}
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}
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return (array)$fields;
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$output = (array) $fields;
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self::$_cache_custom_database_fields[$class] = $output;
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return $output;
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}
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}
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/**
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/**
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@ -2899,6 +2908,7 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
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DataObject::$cache_has_own_table_field = array();
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DataObject::$cache_has_own_table_field = array();
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DataObject::$_cache_get_one = array();
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DataObject::$_cache_get_one = array();
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DataObject::$_cache_composite_fields = array();
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DataObject::$_cache_composite_fields = array();
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DataObject::$_cache_custom_database_fields = array();
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DataObject::$_cache_get_class_ancestry = array();
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DataObject::$_cache_get_class_ancestry = array();
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DataObject::$_cache_field_labels = array();
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DataObject::$_cache_field_labels = array();
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}
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}
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