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logable.php
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logable.php
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<?php
/**
* Logs saves and deletes of any model
*
* Requires the following to work as intended :
*
* - "Log" model ( empty but for a order variable [created DESC]
* - "logs" table with these fields required :
* - id [int] :
* - title [string] : automagically filled with the display field of the model that was modified.
* - created [date/datetime] : filled by cake in normal way
*
* - actsAs = array("Logable"); on models that should be logged
*
* Optional extra table fields for the "logs" table :
*
* - "description" [string] : Fill with a descriptive text of what, who and to which model/row :
* "Contact "John Smith"(34) added by User "Administrator"(1).
*
* or if u want more detail, add any combination of the following :
*
* - "model" [string] : automagically filled with the class name of the model that generated the activity.
* - "model_id" [int] : automagically filled with the primary key of the model that was modified.
* - "action" [string] : automagically filled with what action is made (add/edit/delete)
* - "user_id" [int] : populated with the supplied user info. (May be renamed. See bellow.)
* - "change" [string] : depending on setting either :
* [name (alek) => (Alek), age (28) => (29)] or [name, age]
*
* - "version_id" [int] : cooperates with RevisionBehavior to link the the shadow table (thus linking to old data)
*
* Remember that Logable behavior needs to be added after RevisionBehavior. In fact, just put it last to be safe.
*
* Optionally register what user was responisble for the activity :
*
* - Supply configuration only if defaults are wrong. Example given with defaults :
*
* class Apple extends AppModel {
* var $name = 'Apple';
* var $actsAs = array('Logable' => array('userModel' => 'User', 'userKey' => 'user_id'));
* [..]
*
* - In AppController (or single controller if only needed once) add these lines to beforeFilter :
*
* if (sizeof($this->uses) && $this->{$this->modelClass}->Behaviors->attached('Logable')) {
* $this->{$this->modelClass}->setUserData($this->activeUser);
* }
*
* Where "$activeUser" should be an array in the standard format for the User model used :
*
* $activeUser = array( $UserModel->alias => array( $UserModel->primaryKey => 123, $UserModel->displayField => 'Alexander'));
* // any other key is just ignored by this behaviour.
*
* @author Alexander Morland (alexander#maritimecolours.no)
* @co-author Eskil Mjelva Saatvedt
* @co-author Ronny Vindenes
* @co-author Carl Erik Fyllingen
* @contributor Miha
* @category Behavior
* @version 2.2
* @modified 3.june 2009 by Miha
*/
class LogableBehavior extends ModelBehavior
{
public $user = NULL;
public $UserModel = FALSE;
public $settings = array();
public $defaults = array(
'enabled' => true,
'userModel' => 'User',
'userKey' => 'user_id',
'change' => 'list',
'description_ids' => TRUE,
'skip' => array(),
'ignore' => array(),
'classField' => 'model',
'foreignKey' => 'model_id'
);
/**
* Cake called intializer
* Config options are :
* userModel : 'User'. Class name of the user model you want to use (User by default), if you want to save User in log
* userKey : 'user_id'. The field for saving the user to (user_id by default).
* change : 'list' > [name, age]. Set to 'full' for [name (alek) => (Alek), age (28) => (29)]
* description_ids : TRUE. Set to FALSE to not include model id and user id in the title field
* skip : array(). String array of actions to not log
*
* @param Object $Model
* @param array $config
*/
function setup(&$Model, $config = array()) {
if (!is_array($config)) {
$config = array();
}
$this->settings[$Model->alias] = array_merge($this->defaults, $config);
$this->settings[$Model->alias]['ignore'][] = $Model->primaryKey;
$this->Log =& ClassRegistry::init('Log');
if ($this->settings[$Model->alias]['userModel'] != $Model->alias) {
$this->UserModel =& ClassRegistry::init($this->settings[$Model->alias]['userModel']);
} else {
$this->UserModel = $Model;
}
}
function settings(&$Model) {
return $this->settings[$Model->alias];
}
function enableLog(&$Model, $enable = null) {
if ($enable !== null) {
$this->settings[$Model->alias]['enabled'] = $enable;
}
return $this->settings[$Model->alias]['enabled'];
}
/**
* Useful for getting logs for a model, takes params to narrow find.
* This method can actually also be used to find logs for all models or
* even another model. Using no params will return all activities for
* the models it is called from.
*
* Possible params :
* 'model' : mixed (NULL) String with className, NULL to get current or FALSE to get everything
* 'action' : string (NULL) String with action (add/edit/delete), NULL gets all
* 'order' : string ('created DESC') String with custom order
* 'conditions : array (array()) Add custom conditions
* 'model_id' : int (NULL) Add a int
*
* (remember to use your own user key if you're not using 'user_id')
* 'user_id' : int (NULL) Defaults to all users, supply id if you want for only one User
*
* @param Object $Model
* @param array $params
* @return array
*/
function findLog(&$Model, $params = array()) {
$defaults = array(
$this->settings[$Model->alias]['classField'] => NULL,
'action' => NULL,
'order' => 'created DESC',
$this->settings[$Model->alias]['userKey'] => NULL,
'conditions' => array(),
$this->settings[$Model->alias]['foreignKey'] => NULL,
'fields' => array(),
'limit' => 50,
);
$params = array_merge($defaults, $params);
$options = array('order' => $params['order'], 'conditions' => $params['conditions'], 'fields' => $params['fields'], 'limit' => $params['limit']);
if ($params[$this->settings[$Model->alias]['classField']] === NULL) {
$params[$this->settings[$Model->alias]['classField']] = $Model->alias;
}
if ($params[$this->settings[$Model->alias]['classField']]) {
if (isset($this->Log->_schema[$this->settings[$Model->alias]['classField']])) {
$options['conditions'][$this->settings[$Model->alias]['classField']] = $params[$this->settings[$Model->alias]['classField']];
} elseif (isset($this->Log->_schema['description'])) {
$options['conditions']['description LIKE '] = $params[$this->settings[$Model->alias]['classField']].'%';
} else {
return FALSE;
}
}
if ($params['action'] && isset($this->Log->_schema['action'])) {
$options['conditions']['action'] = $params['action'];
}
if ($params[ $this->settings[$Model->alias]['userKey'] ] && $this->UserModel && is_numeric($params[ $this->settings[$Model->alias]['userKey'] ])) {
$options['conditions'][$this->settings[$Model->alias]['userKey']] = $params[ $this->settings[$Model->alias]['userKey'] ];
}
if ($params[$this->settings[$Model->alias]['foreignKey']] && is_numeric($params[$this->settings[$Model->alias]['foreignKey']])) {
$options['conditions'][$this->settings[$Model->alias]['foreignKey']] = $params[$this->settings[$Model->alias]['foreignKey']];
}
return $this->Log->find('all',$options);
}
/**
* Get list of actions for one user.
* Params for getting (one line) activity descriptions
* and/or for just one model
*
* @example $this->Model->findUserActions(301,array('model' => 'BookTest'));
* @example $this->Model->findUserActions(301,array('events' => true));
* @example $this->Model->findUserActions(301,array('fields' => array('id','model'),'model' => 'BookTest');
* @param Object $Model
* @param int $user_id
* @param array $params
* @return array
*/
function findUserActions(&$Model, $user_id, $params = array()) {
if (!$this->UserModel) {
return NULL;
}
// if logged in user is asking for her own log, use the data we allready have
if ( isset($this->user)
&& isset($this->user[$this->UserModel->alias][$this->UserModel->primaryKey])
&& $user_id == $this->user[$this->UserModel->alias][$this->UserModel->primaryKey]
&& isset($this->user[$this->UserModel->alias][$this->UserModel->displayField]) ) {
$username = $this->user[$this->UserModel->alias][$this->UserModel->displayField];
} else {
$this->UserModel->recursive = -1;
$user = $this->UserModel->find(array($this->UserModel->primaryKey => $user_id));
$username = $user[$this->UserModel->alias][$this->UserModel->displayField];
}
$fields = array();
if (isset($params['fields'])) {
if (is_array($params['fields'])) {
$fields = $params['fields'];
} else {
$fields = array($params['fields']);
}
}
$conditions = array($this->settings[$Model->alias]['userKey'] => $user_id);
if (isset($params[$this->settings[$Model->alias]['classField']])) {
$conditions[$this->settings[$Model->alias]['classField']] = $params[$this->settings[$Model->alias]['classField']];
}
$data = $this->Log->find('all', array(
'conditions' => $conditions,
'recursive' => -1,
'fields' => $fields
));
if (! isset($params['events']) || (isset($params['events']) && $params['events'] == false)) {
return $data;
}
$result = array();
foreach ($data as $key => $row) {$one = $row['Log'];
$result[$key]['Log']['id'] = $one['id'];
$result[$key]['Log']['event'] = $username;
// have all the detail models and change as list :
if (isset($one[$this->settings[$Model->alias]['classField']]) && isset($one['action']) && isset($one['change']) && isset($one[$this->settings[$Model->alias]['foreignKey']])) {
if ($one['action'] == 'edit') {
$result[$key]['Log']['event'] .= ' edited '.$one['change'].' of '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
// ' at '.$one['created'];
} elseif ($one['action'] == 'add') {
$result[$key]['Log']['event'] .= ' added a '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
} elseif ($one['action'] == 'delete') {
$result[$key]['Log']['event'] .= ' deleted the '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
}
} elseif ( isset($one[$this->settings[$Model->alias]['classField']]) && isset($one['action']) && isset($one[$this->settings[$Model->alias]['foreignKey']]) ) { // have model,model_id and action
if ($one['action'] == 'edit') {
$result[$key]['Log']['event'] .= ' edited '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
// ' at '.$one['created'];
} elseif ($one['action'] == 'add') {
$result[$key]['Log']['event'] .= ' added a '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
} elseif ($one['action'] == 'delete') {
$result[$key]['Log']['event'] .= ' deleted the '.low($one[$this->settings[$Model->alias]['classField']]).'(id '.$one[$this->settings[$Model->alias]['foreignKey']].')';
}
} else { // only description field exist
$result[$key]['Log']['event'] = $one['description'];
}
}
return $result;
}
/**
* Use this to supply a model with the data of the logged in User.
* Intended to be called in AppController::beforeFilter like this :
*
* if ($this->{$this->modelClass}->Behaviors->attached('Logable')) {
* $this->{$this->modelClass}->setUserData($activeUser);/
* }
*
* The $userData array is expected to look like the result of a
* User::find(array('id'=>123));
*
* @param Object $Model
* @param array $userData
*/
function setUserData(&$Model, $userData = null) {
if ($userData) {
$this->user = $userData;
}
}
/**
* Used for logging custom actions that arent crud, like login or download.
*
* @example $this->Boat->customLog('ship', 66, array('title' => 'Titanic heads out'));
* @param Object $Model
* @param string $action name of action that is taking place (dont use the crud ones)
* @param int $id id of the logged item (ie model_id in logs table)
* @param array $values optional other values for your logs table
*/
function customLog(&$Model, $action, $id, $values = array()) {
$logData['Log'] = $values;
/** @todo clean up $logData */
if (isset($this->Log->_schema[$this->settings[$Model->alias]['foreignKey']]) && is_numeric($id)) {
$logData['Log'][$this->settings[$Model->alias]['foreignKey']] = $id;
}
$title = NULL;
if (isset($values['title'])) {
$title = $values['title'];
unset($logData['Log']['title']);
}
$logData['Log']['action'] = $action;
$this->_saveLog($Model, $logData, $title);
}
function clearUserData(&$Model) {
$this->user = NULL;
}
function setUserIp(&$Model, $userIP = null) {
$this->userIP = $userIP;
}
function beforeDelete(&$Model) {
if (!$this->settings[$Model->alias]['enabled']) {
return true;
}
if (isset($this->settings[$Model->alias]['skip']['delete']) && $this->settings[$Model->alias]['skip']['delete']) {
return true;
}
$Model->recursive = -1;
$Model->read();
return true;
}
function afterDelete(&$Model) {
if (!$this->settings[$Model->alias]['enabled']) {
return true;
}
if (isset($this->settings[$Model->alias]['skip']['delete']) && $this->settings[$Model->alias]['skip']['delete']) {
return true;
}
$logData = array();
if (isset($this->Log->_schema['description'])) {
$logData['Log']['description'] = $Model->alias;
if (isset($Model->data[$Model->alias][$Model->displayField]) && $Model->displayField != $Model->primaryKey) {
$logData['Log']['description'] .= ' "'.$Model->data[$Model->alias][$Model->displayField].'"';
}
if ($this->settings[$Model->alias]['description_ids']) {
$logData['Log']['description'] .= ' ('.$Model->id.') ';
}
$logData['Log']['description'] .= __('deleted',TRUE);
}
$logData['Log']['action'] = 'delete';
$this->_saveLog($Model, $logData);
}
function beforeSave(&$Model) {
if (isset($this->Log->_schema['change']) && $Model->id) {
$this->old = $Model->find('first',array('conditions'=>array(
$Model->alias .'.'. $Model->primaryKey => $Model->id),
'recursive'=>-1
));
}
return true;
}
function afterSave(&$Model,$created) {
if (!$this->settings[$Model->alias]['enabled']) {
return true;
}
if (isset($this->settings[$Model->alias]['skip']['add']) && $this->settings[$Model->alias]['skip']['add'] && $created) {
return true;
} elseif (isset($this->settings[$Model->alias]['skip']['edit']) && $this->settings[$Model->alias]['skip']['edit'] && !$created) {
return true;
}
$keys = array_keys($Model->data[$Model->alias]);
$diff = array_diff($keys,$this->settings[$Model->alias]['ignore']);
if (sizeof($diff) == 0 && empty($Model->logableAction)) {
return false;
}
if ($Model->id) {
$id = $Model->id;
} elseif ($Model->insertId) {
$id = $Model->insertId;
}
if (isset($this->Log->_schema[$this->settings[$Model->alias]['foreignKey']])) {
$logData['Log'][$this->settings[$Model->alias]['foreignKey']] = $id;
}
if (isset($this->Log->_schema['description'])) {
$logData['Log']['description'] = $Model->alias.' ';
if (isset($Model->data[$Model->alias][$Model->displayField]) && $Model->displayField != $Model->primaryKey) {
$logData['Log']['description'] .= '"'.$Model->data[$Model->alias][$Model->displayField].'" ';
}
if ($this->settings[$Model->alias]['description_ids']) {
$logData['Log']['description'] .= '('.$id.') ';
}
if ($created) {
$logData['Log']['description'] .= __('added',TRUE);
} else {
$logData['Log']['description'] .= __('updated',TRUE);
}
}
if (isset($this->Log->_schema['action'])) {
if ($created) {
$logData['Log']['action'] = 'add';
} else {
$logData['Log']['action'] = 'edit';
}
}
if (isset($this->Log->_schema['change'])) {
$logData['Log']['change'] = '';
$db_fields = array_keys($Model->_schema);
$changed_fields = array();
foreach ($Model->data[$Model->alias] as $key => $value) {
if (isset($Model->data[$Model->alias][$Model->primaryKey]) && !empty($this->old) && isset($this->old[$Model->alias][$key])) {
$old = $this->old[$Model->alias][$key];
} else {
$old = '';
}
if ($key != 'modified'
&& !in_array($key, $this->settings[$Model->alias]['ignore'])
&& $value != $old && in_array($key,$db_fields) )
{
if ($this->settings[$Model->alias]['change'] == 'full') {
$changed_fields[] = $key . ' ('.$old.') => ('.$value.')';
} else if ($this->settings[$Model->alias]['change'] == 'serialize') {
$changed_fields[$key] = array('old'=>$old, 'value'=>$value);
} else {
$changed_fields[] = $key;
}
}
}
$changes = sizeof($changed_fields);
if ($changes == 0) {
return true;
}
if ($this->settings[$Model->alias]['change'] == 'serialize') {
$logData['Log']['change'] = serialize($changed_fields);
} else {
$logData['Log']['change'] = implode(', ',$changed_fields);
}
$logData['Log']['changes'] = $changes;
}
$this->_saveLog($Model, $logData);
}
/**
* Does the actual saving of the Log model. Also adds the special field if possible.
*
* If model field in table, add the Model->alias
* If action field is NOT in table, remove it from dataset
* If the userKey field in table, add it to dataset
* If userData is supplied to model, add it to the title
*
* @param Object $Model
* @param array $logData
*/
function _saveLog(&$Model, $logData, $title = null) {
if ($title !== NULL) {
$logData['Log']['title'] = $title;
} elseif ($Model->displayField == $Model->primaryKey) {
$logData['Log']['title'] = $Model->alias . ' ('. $Model->id.')';
} elseif (isset($Model->data[$Model->alias][$Model->displayField])) {
$logData['Log']['title'] = $Model->data[$Model->alias][$Model->displayField];
} else {
$logData['Log']['title'] = $Model->field($Model->displayField);
}
if (isset($this->Log->_schema[$this->settings[$Model->alias]['classField']])) {
// by miha nahtigal
$logData['Log'][$this->settings[$Model->alias]['classField']] = $Model->name;
}
if (isset($this->Log->_schema[$this->settings[$Model->alias]['foreignKey']]) && !isset($logData['Log'][$this->settings[$Model->alias]['foreignKey']])) {
if ($Model->id) {
$logData['Log'][$this->settings[$Model->alias]['foreignKey']] = $Model->id;
} elseif ($Model->insertId) {
$logData['Log'][$this->settings[$Model->alias]['foreignKey']] = $Model->insertId;
}
}
if (!isset($this->Log->_schema[ 'action' ])) {
unset($logData['Log']['action']);
} elseif (isset($Model->logableAction) && !empty($Model->logableAction)) {
$logData['Log']['action'] = implode(',',$Model->logableAction); // . ' ' . $logData['Log']['action'];
unset($Model->logableAction);
}
if (isset($this->Log->_schema[ 'version_id' ]) && isset($Model->version_id)) {
$logData['Log']['version_id'] = $Model->version_id;
unset($Model->version_id);
}
if (isset($this->Log->_schema[ 'ip' ]) && $this->userIP) {
$logData['Log']['ip'] = $this->userIP;
}
if (isset($this->Log->_schema[ $this->settings[$Model->alias]['userKey'] ]) && $this->user) {
$logData['Log'][$this->settings[$Model->alias]['userKey']] = $this->user[$this->UserModel->alias][$this->UserModel->primaryKey];
}
if (isset($this->Log->_schema['description'])) {
if ($this->user && $this->UserModel) {
$logData['Log']['description'] .= ' by '.$this->settings[$Model->alias]['userModel'].' "'.
$this->user[$this->UserModel->alias][$this->UserModel->displayField].'"';
if ($this->settings[$Model->alias]['description_ids']) {
$logData['Log']['description'] .= ' ('.$this->user[$this->UserModel->alias][$this->UserModel->primaryKey].')';
}
} else {
// UserModel is active, but the data hasnt been set. Assume system action.
$logData['Log']['description'] .= ' by System';
}
$logData['Log']['description'] .= '.';
}
$this->Log->create($logData);
$this->Log->save(null, array('validate'=>false, 'callbacks' => false));
}
}
?>