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[yaffs-website] / vendor / gabordemooij / redbean / RedBeanPHP / Repository.php
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+<?php
+
+namespace RedBeanPHP;
+
+use RedBeanPHP\Adapter\DBAdapter as DBAdapter;
+use RedBeanPHP\QueryWriter as QueryWriter;
+use RedBeanPHP\BeanHelper as BeanHelper;
+use RedBeanPHP\RedException\SQL as SQLException;
+use RedBeanPHP\QueryWriter\AQueryWriter as AQueryWriter;
+use RedBeanPHP\Cursor as Cursor;
+use RedBeanPHP\Cursor\NullCursor as NullCursor;
+
+/**
+ * Abstract Repository.
+ *
+ * OODB manages two repositories, a fluid one that
+ * adjust the database schema on-the-fly to accomodate for
+ * new bean types (tables) and new properties (columns) and
+ * a frozen one for use in a production environment. OODB
+ * allows you to swap the repository instances using the freeze()
+ * method.
+ *
+ * @file    RedBeanPHP/Repository.php
+ * @author  Gabor de Mooij and the RedBeanPHP community
+ * @license BSD/GPLv2
+ *
+ * @copyright
+ * copyright (c) G.J.G.T. (Gabor) de Mooij and the RedBeanPHP Community
+ * This source file is subject to the BSD/GPLv2 License that is bundled
+ * with this source code in the file license.txt.
+ */
+abstract class Repository
+{
+       /**
+        * @var array
+        */
+       protected $stash = NULL;
+
+       /*
+        * @var integer
+        */
+       protected $nesting = 0;
+
+       /**
+        * @var DBAdapter
+        */
+       protected $writer;
+
+       /**
+        * Stores a bean and its lists in one run.
+        *
+        * @param OODBBean $bean bean to process
+        *
+        * @return void
+        */
+       protected function storeBeanWithLists( OODBBean $bean )
+       {
+               $sharedAdditions = $sharedTrashcan = $sharedresidue = $sharedItems = $ownAdditions = $ownTrashcan = $ownresidue = $embeddedBeans = array(); //Define groups
+               foreach ( $bean as $property => $value ) {
+                       $value = ( $value instanceof SimpleModel ) ? $value->unbox() : $value;
+                       if ( $value instanceof OODBBean ) {
+                               $this->processEmbeddedBean( $embeddedBeans, $bean, $property, $value );
+                               $bean->setMeta("sys.typeof.{$property}", $value->getMeta('type'));
+                       } elseif ( is_array( $value ) ) {
+                               foreach($value as &$item) {
+                                       $item = ( $item instanceof SimpleModel ) ? $item->unbox() : $item;
+                               }
+                               $originals = $bean->moveMeta( 'sys.shadow.' . $property, array() );
+                               if ( strpos( $property, 'own' ) === 0 ) {
+                                       list( $ownAdditions, $ownTrashcan, $ownresidue ) = $this->processGroups( $originals, $value, $ownAdditions, $ownTrashcan, $ownresidue );
+                                       $listName = lcfirst( substr( $property, 3 ) );
+                                       if ($bean->moveMeta( 'sys.exclusive-'.  $listName ) ) {
+                                               OODBBean::setMetaAll( $ownTrashcan, 'sys.garbage', TRUE );
+                                               OODBBean::setMetaAll( $ownAdditions, 'sys.buildcommand.fkdependson', $bean->getMeta( 'type' ) );
+                                       }
+                                       unset( $bean->$property );
+                               } elseif ( strpos( $property, 'shared' ) === 0 ) {
+                                       list( $sharedAdditions, $sharedTrashcan, $sharedresidue ) = $this->processGroups( $originals, $value, $sharedAdditions, $sharedTrashcan, $sharedresidue );
+                                       unset( $bean->$property );
+                               }
+                       }
+               }
+               $this->storeBean( $bean );
+               $this->processTrashcan( $bean, $ownTrashcan );
+               $this->processAdditions( $bean, $ownAdditions );
+               $this->processResidue( $ownresidue );
+               $this->processSharedTrashcan( $bean, $sharedTrashcan );
+               $this->processSharedAdditions( $bean, $sharedAdditions );
+               $this->processSharedResidue( $bean, $sharedresidue );
+       }
+
+       /**
+        * Process groups. Internal function. Processes different kind of groups for
+        * storage function. Given a list of original beans and a list of current beans,
+        * this function calculates which beans remain in the list (residue), which
+        * have been deleted (are in the trashcan) and which beans have been added
+        * (additions).
+        *
+        * @param  array $originals originals
+        * @param  array $current   the current beans
+        * @param  array $additions beans that have been added
+        * @param  array $trashcan  beans that have been deleted
+        * @param  array $residue   beans that have been left untouched
+        *
+        * @return array
+        */
+       protected function processGroups( $originals, $current, $additions, $trashcan, $residue )
+       {
+               return array(
+                       array_merge( $additions, array_diff( $current, $originals ) ),
+                       array_merge( $trashcan, array_diff( $originals, $current ) ),
+                       array_merge( $residue, array_intersect( $current, $originals ) )
+               );
+       }
+
+       /**
+        * Processes an embedded bean.
+        *
+        * @param OODBBean|SimpleModel $embeddedBean the bean or model
+        *
+        * @return integer
+        */
+       protected function prepareEmbeddedBean( $embeddedBean )
+       {
+               if ( !$embeddedBean->id || $embeddedBean->getMeta( 'tainted' ) ) {
+                       $this->store( $embeddedBean );
+               }
+
+               return $embeddedBean->id;
+       }
+
+       /**
+        * Processes a list of beans from a bean. A bean may contain lists. This
+        * method handles shared addition lists; i.e. the $bean->sharedObject properties.
+        *
+        * @param OODBBean $bean             the bean
+        * @param array            $sharedAdditions  list with shared additions
+        *
+        * @return void
+        */
+       protected function processSharedAdditions( $bean, $sharedAdditions )
+       {
+               foreach ( $sharedAdditions as $addition ) {
+                       if ( $addition instanceof OODBBean ) {
+                               $this->oodb->getAssociationManager()->associate( $addition, $bean );
+                       } else {
+                               throw new RedException( 'Array may only contain OODBBeans' );
+                       }
+               }
+       }
+
+       /**
+        * Processes a list of beans from a bean. A bean may contain lists. This
+        * method handles own lists; i.e. the $bean->ownObject properties.
+        * A residue is a bean in an own-list that stays where it is. This method
+        * checks if there have been any modification to this bean, in that case
+        * the bean is stored once again, otherwise the bean will be left untouched.
+        *
+        * @param OODBBean $bean       bean tor process
+        * @param array    $ownresidue list to process
+        *
+        * @return void
+        */
+       protected function processResidue( $ownresidue )
+       {
+               foreach ( $ownresidue as $residue ) {
+                       if ( $residue->getMeta( 'tainted' ) ) {
+                               $this->store( $residue );
+                       }
+               }
+       }
+
+       /**
+        * Processes a list of beans from a bean. A bean may contain lists. This
+        * method handles own lists; i.e. the $bean->ownObject properties.
+        * A trash can bean is a bean in an own-list that has been removed
+        * (when checked with the shadow). This method
+        * checks if the bean is also in the dependency list. If it is the bean will be removed.
+        * If not, the connection between the bean and the owner bean will be broken by
+        * setting the ID to NULL.
+        *
+        * @param OODBBean $bean bean   to process
+        * @param array    $ownTrashcan list to process
+        *
+        * @return void
+        */
+       protected function processTrashcan( $bean, $ownTrashcan )
+       {
+               foreach ( $ownTrashcan as $trash ) {
+
+                       $myFieldLink = $bean->getMeta( 'type' ) . '_id';
+                       $alias = $bean->getMeta( 'sys.alias.' . $trash->getMeta( 'type' ) );
+                       if ( $alias ) $myFieldLink = $alias . '_id';
+
+                       if ( $trash->getMeta( 'sys.garbage' ) === true ) {
+                               $this->trash( $trash );
+                       } else {
+                               $trash->$myFieldLink = NULL;
+                               $this->store( $trash );
+                       }
+               }
+       }
+
+       /**
+        * Unassociates the list items in the trashcan.
+        *
+        * @param OODBBean $bean           bean to process
+        * @param array    $sharedTrashcan list to process
+        *
+        * @return void
+        */
+       protected function processSharedTrashcan( $bean, $sharedTrashcan )
+       {
+               foreach ( $sharedTrashcan as $trash ) {
+                       $this->oodb->getAssociationManager()->unassociate( $trash, $bean );
+               }
+       }
+
+       /**
+        * Stores all the beans in the residue group.
+        *
+        * @param OODBBean $bean          bean to process
+        * @param array    $sharedresidue list to process
+        *
+        * @return void
+        */
+       protected function processSharedResidue( $bean, $sharedresidue )
+       {
+               foreach ( $sharedresidue as $residue ) {
+                       $this->store( $residue );
+               }
+       }
+
+       /**
+        * Determines whether the bean has 'loaded lists' or
+        * 'loaded embedded beans' that need to be processed
+        * by the store() method.
+        *
+        * @param OODBBean $bean bean to be examined
+        *
+        * @return boolean
+        */
+       protected function hasListsOrObjects( OODBBean $bean )
+       {
+               $processLists = FALSE;
+               foreach ( $bean as $value ) {
+                       if ( is_array( $value ) || is_object( $value ) ) {
+                               $processLists = TRUE;
+                               break;
+                       }
+               }
+
+               return $processLists;
+       }
+
+       /**
+        * Converts an embedded bean to an ID, removed the bean property and
+        * stores the bean in the embedded beans array.
+        *
+        * @param array    $embeddedBeans destination array for embedded bean
+        * @param OODBBean $bean          target bean to process
+        * @param string   $property      property that contains the embedded bean
+        * @param OODBBean $value         embedded bean itself
+        *
+        * @return void
+        */
+       protected function processEmbeddedBean( &$embeddedBeans, $bean, $property, OODBBean $value )
+       {
+               $linkField = $property . '_id';
+               $id = $this->prepareEmbeddedBean( $value );
+               if ($bean->$linkField != $id) $bean->$linkField = $id;
+               $bean->setMeta( 'cast.' . $linkField, 'id' );
+               $embeddedBeans[$linkField] = $value;
+               unset( $bean->$property );
+       }
+
+       /**
+        * Constructor, requires a query writer.
+        * Creates a new instance of the bean respository class.
+        *
+        * @param QueryWriter $writer the Query Writer to use for this repository
+        *
+        * @return void
+        */
+       public function __construct( OODB $oodb, QueryWriter $writer )
+       {
+               $this->writer = $writer;
+               $this->oodb = $oodb;
+       }
+
+       /**
+        * Checks whether a OODBBean bean is valid.
+        * If the type is not valid or the ID is not valid it will
+        * throw an exception: Security.
+        *
+        * @param OODBBean $bean the bean that needs to be checked
+        *
+        * @return void
+        */
+       public function check( OODBBean $bean )
+       {
+               //Is all meta information present?
+               if ( !isset( $bean->id ) ) {
+                       throw new RedException( 'Bean has incomplete Meta Information id ' );
+               }
+               if ( !( $bean->getMeta( 'type' ) ) ) {
+                       throw new RedException( 'Bean has incomplete Meta Information II' );
+               }
+               //Pattern of allowed characters
+               $pattern = '/[^a-z0-9_]/i';
+               //Does the type contain invalid characters?
+               if ( preg_match( $pattern, $bean->getMeta( 'type' ) ) ) {
+                       throw new RedException( 'Bean Type is invalid' );
+               }
+               //Are the properties and values valid?
+               foreach ( $bean as $prop => $value ) {
+                       if (
+                               is_array( $value )
+                               || ( is_object( $value ) )
+                       ) {
+                               throw new RedException( "Invalid Bean value: property $prop" );
+                       } else if (
+                               strlen( $prop ) < 1
+                               || preg_match( $pattern, $prop )
+                       ) {
+                               throw new RedException( "Invalid Bean property: property $prop" );
+                       }
+               }
+       }
+
+       /**
+        * Searches the database for a bean that matches conditions $conditions and sql $addSQL
+        * and returns an array containing all the beans that have been found.
+        *
+        * Conditions need to take form:
+        *
+        * <code>
+        * array(
+        *    'PROPERTY' => array( POSSIBLE VALUES... 'John', 'Steve' )
+        *    'PROPERTY' => array( POSSIBLE VALUES... )
+        * );
+        * </code>
+        *
+        * All conditions are glued together using the AND-operator, while all value lists
+        * are glued using IN-operators thus acting as OR-conditions.
+        *
+        * Note that you can use property names; the columns will be extracted using the
+        * appropriate bean formatter.
+        *
+        * @param string $type       type of beans you are looking for
+        * @param array  $conditions list of conditions
+        * @param string $addSQL     SQL to be used in query
+        * @param array  $bindings   whether you prefer to use a WHERE clause or not (TRUE = not)
+        *
+        * @return array
+        */
+       public function find( $type, $conditions = array(), $sql = NULL, $bindings = array() )
+       {
+               //for backward compatibility, allow mismatch arguments:
+               if ( is_array( $sql ) ) {
+                       if ( isset( $sql[1] ) ) {
+                               $bindings = $sql[1];
+                       }
+                       $sql = $sql[0];
+               }
+               try {
+                       $beans = $this->convertToBeans( $type, $this->writer->queryRecord( $type, $conditions, $sql, $bindings ) );
+
+                       return $beans;
+               } catch ( SQLException $exception ) {
+                       $this->handleException( $exception );
+               }
+
+               return array();
+       }
+
+       /**
+        * Finds a BeanCollection.
+        *
+        * @param string $type     type of beans you are looking for
+        * @param string $sql      SQL to be used in query
+        * @param array  $bindings whether you prefer to use a WHERE clause or not (TRUE = not)
+        *
+        * @return BeanCollection
+        */
+       public function findCollection( $type, $sql, $bindings = array() )
+       {
+               try {
+                       $cursor = $this->writer->queryRecordWithCursor( $type, $sql, $bindings );
+                       return new BeanCollection( $type, $this, $cursor );
+               } catch ( SQLException $exception ) {
+                       $this->handleException( $exception );
+               }
+               return new BeanCollection( $type, $this, new NullCursor );
+       }
+
+       /**
+        * Stores a bean in the database. This method takes a
+        * OODBBean Bean Object $bean and stores it
+        * in the database. If the database schema is not compatible
+        * with this bean and RedBean runs in fluid mode the schema
+        * will be altered to store the bean correctly.
+        * If the database schema is not compatible with this bean and
+        * RedBean runs in frozen mode it will throw an exception.
+        * This function returns the primary key ID of the inserted
+        * bean.
+        *
+        * The return value is an integer if possible. If it is not possible to
+        * represent the value as an integer a string will be returned. We use
+        * explicit casts instead of functions to preserve performance
+        * (0.13 vs 0.28 for 10000 iterations on Core i3).
+        *
+        * @param OODBBean|SimpleModel $bean bean to store
+        *
+        * @return integer|string
+        */
+       public function store( $bean )
+       {
+               $processLists = $this->hasListsOrObjects( $bean );
+               if ( !$processLists && !$bean->getMeta( 'tainted' ) ) {
+                       return $bean->getID(); //bail out!
+               }
+               $this->oodb->signal( 'update', $bean );
+               $processLists = $this->hasListsOrObjects( $bean ); //check again, might have changed by model!
+               if ( $processLists ) {
+                       $this->storeBeanWithLists( $bean );
+               } else {
+                       $this->storeBean( $bean );
+               }
+               $this->oodb->signal( 'after_update', $bean );
+
+               return ( (string) $bean->id === (string) (int) $bean->id ) ? (int) $bean->id : (string) $bean->id;
+       }
+
+       /**
+        * Returns an array of beans. Pass a type and a series of ids and
+        * this method will bring you the corresponding beans.
+        *
+        * important note: Because this method loads beans using the load()
+        * function (but faster) it will return empty beans with ID 0 for
+        * every bean that could not be located. The resulting beans will have the
+        * passed IDs as their keys.
+        *
+        * @param string $type type of beans
+        * @param array  $ids  ids to load
+        *
+        * @return array
+        */
+       public function batch( $type, $ids )
+       {
+               if ( !$ids ) {
+                       return array();
+               }
+               $collection = array();
+               try {
+                       $rows = $this->writer->queryRecord( $type, array( 'id' => $ids ) );
+               } catch ( SQLException $e ) {
+                       $this->handleException( $e );
+                       $rows = FALSE;
+               }
+               $this->stash[$this->nesting] = array();
+               if ( !$rows ) {
+                       return array();
+               }
+               foreach ( $rows as $row ) {
+                       $this->stash[$this->nesting][$row['id']] = $row;
+               }
+               foreach ( $ids as $id ) {
+                       $collection[$id] = $this->load( $type, $id );
+               }
+               $this->stash[$this->nesting] = NULL;
+
+               return $collection;
+       }
+
+       /**
+        * This is a convenience method; it converts database rows
+        * (arrays) into beans. Given a type and a set of rows this method
+        * will return an array of beans of the specified type loaded with
+        * the data fields provided by the result set from the database.
+        *
+        * New in 4.3.2: meta mask. The meta mask is a special mask to send
+        * data from raw result rows to the meta store of the bean. This is
+        * useful for bundling additional information with custom queries.
+        * Values of every column whos name starts with $mask will be
+        * transferred to the meta section of the bean under key 'data.bundle'.
+        *
+        * @param string $type type of beans you would like to have
+        * @param array  $rows rows from the database result
+        * @param string $mask meta mask to apply (optional)
+        *
+        * @return array
+        */
+       public function convertToBeans( $type, $rows, $mask = NULL )
+       {
+               $masklen = 0;
+               if ( $mask !== NULL ) $masklen = mb_strlen( $mask );
+
+               $collection                  = array();
+               $this->stash[$this->nesting] = array();
+               foreach ( $rows as $row ) {
+                       $meta = array();
+                       if ( !is_null( $mask ) ) {
+                               foreach( $row as $key => $value ) {
+                                       if ( strpos( $key, $mask ) === 0 ) {
+                                               unset( $row[$key] );
+                                               $meta[$key] = $value;
+                                       }
+                               }
+                       }
+
+                       $id                               = $row['id'];
+                       $this->stash[$this->nesting][$id] = $row;
+                       $collection[$id]                  = $this->load( $type, $id );
+
+                       if ( $mask !== NULL ) {
+                               $collection[$id]->setMeta( 'data.bundle', $meta );
+                       }
+               }
+               $this->stash[$this->nesting] = NULL;
+
+               return $collection;
+       }
+
+       /**
+        * Counts the number of beans of type $type.
+        * This method accepts a second argument to modify the count-query.
+        * A third argument can be used to provide bindings for the SQL snippet.
+        *
+        * @param string $type     type of bean we are looking for
+        * @param string $addSQL   additional SQL snippet
+        * @param array  $bindings parameters to bind to SQL
+        *
+        * @return integer
+        */
+       public function count( $type, $addSQL = '', $bindings = array() )
+       {
+               $type = AQueryWriter::camelsSnake( $type );
+               if ( count( explode( '_', $type ) ) > 2 ) {
+                       throw new RedException( 'Invalid type for count.' );
+               }
+
+               try {
+                       return (int) $this->writer->queryRecordCount( $type, array(), $addSQL, $bindings );
+               } catch ( SQLException $exception ) {
+                       if ( !$this->writer->sqlStateIn( $exception->getSQLState(), array(
+                                QueryWriter::C_SQLSTATE_NO_SUCH_TABLE,
+                                QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN ) ) ) {
+                               throw $exception;
+                       }
+               }
+
+               return 0;
+       }
+
+       /**
+        * Removes a bean from the database.
+        * This function will remove the specified OODBBean
+        * Bean Object from the database.
+        *
+        * @param OODBBean|SimpleModel $bean bean you want to remove from database
+        *
+        * @return void
+        */
+       public function trash( $bean )
+       {
+               $this->oodb->signal( 'delete', $bean );
+               foreach ( $bean as $property => $value ) {
+                       if ( $value instanceof OODBBean ) {
+                               unset( $bean->$property );
+                       }
+                       if ( is_array( $value ) ) {
+                               if ( strpos( $property, 'own' ) === 0 ) {
+                                       unset( $bean->$property );
+                               } elseif ( strpos( $property, 'shared' ) === 0 ) {
+                                       unset( $bean->$property );
+                               }
+                       }
+               }
+               try {
+                       $this->writer->deleteRecord( $bean->getMeta( 'type' ), array( 'id' => array( $bean->id ) ), NULL );
+               } catch ( SQLException $exception ) {
+                       $this->handleException( $exception );
+               }
+               $bean->id = 0;
+               $this->oodb->signal( 'after_delete', $bean );
+       }
+
+       /**
+        * Checks whether the specified table already exists in the database.
+        * Not part of the Object Database interface!
+        *
+        * @deprecated Use AQueryWriter::typeExists() instead.
+        *
+        * @param string $table table name
+        *
+        * @return boolean
+        */
+       public function tableExists( $table )
+       {
+               return $this->writer->tableExists( $table );
+       }
+
+       /**
+        * Trash all beans of a given type. Wipes an entire type of bean.
+        *
+        * @param string $type type of bean you wish to delete all instances of
+        *
+        * @return boolean
+        */
+       public function wipe( $type )
+       {
+               try {
+                       $this->writer->wipe( $type );
+
+                       return TRUE;
+               } catch ( SQLException $exception ) {
+                       if ( !$this->writer->sqlStateIn( $exception->getSQLState(), array( QueryWriter::C_SQLSTATE_NO_SUCH_TABLE ) ) ) {
+                               throw $exception;
+                       }
+
+                       return FALSE;
+               }
+       }
+}