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<?php |
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namespace SilverStripe\DataObjectAuditor\Models; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\Security\Member; |
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use SilverStripe\Security\Security; |
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/** |
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* Class Audit |
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* Tracks all mutation operations on dataobjects (i.e. deletes or updates) |
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*/ |
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class Audit extends DataObject |
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{ |
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const DB_MODEL_NAME = 'ModelName'; |
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const DB_MODEL_ID = 'ModelID'; |
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const DB_MUTATION_PEFORMED = 'MutationPerformed'; |
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const HAS_MANY_AUDIT_VALUES = 'AuditValues'; |
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const HAS_ONE_DONE_BY = 'DoneBy'; |
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const DB_DONE_BY_ID = 'DoneByID'; |
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private static $db = [ |
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self::DB_MODEL_NAME => 'Varchar(150)', |
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self::DB_MODEL_ID => 'Int', |
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self::DB_MUTATION_PEFORMED => 'Varchar(50)' |
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]; |
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private static $has_one = [ |
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self::HAS_ONE_DONE_BY => Member::class |
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]; |
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private static $indexes = [ |
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'inxModelAndID' => [ |
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'type' => 'index', |
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'columns' => [self::DB_MODEL_NAME, self::DB_MODEL_ID] |
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], |
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self::DB_MUTATION_PEFORMED => true |
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]; |
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private static $has_many = [ |
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self::HAS_MANY_AUDIT_VALUES => AuditValue::class |
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]; |
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private static $table_name = 'DataObjectAuditor_Audit'; |
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public function onBeforeWrite() |
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{ |
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parent::onBeforeWrite(); |
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if (!$this->isInDB()) { |
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$memberID = ($member = Security::getCurrentUser()) ? $member->ID : 0; |
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$this->setField(self::DB_DONE_BY_ID, $memberID); |
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} |
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} |
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/** |
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* Returns the previous value for a specific field. |
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* @param string $field The field name to query |
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* @return null|DataObject |
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*/ |
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public function getPreviousFieldValue($field) |
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{ |
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if ($item = AuditValue::get() |
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->filter( |
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[ |
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AuditValue::DB_FIELD => $field, |
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AuditValue::HAS_ONE_AUDIT_ID => $this->getField('ID') |
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] |
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) |
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->last()) { |
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return $item->getField(AuditValue::DB_PREVIOUS_VALUE); |
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} |
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return null; |
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} |
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} |
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fspringveldt /
silverstripe-dataobject-auditor
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