--- /dev/null
+<?php
+
+namespace RedBeanPHP\Repository;
+
+use RedBeanPHP\OODBBean as OODBBean;
+use RedBeanPHP\QueryWriter as QueryWriter;
+use RedBeanPHP\RedException as RedException;
+use RedBeanPHP\BeanHelper as BeanHelper;
+use RedBeanPHP\RedException\SQL as SQLException;
+use RedBeanPHP\Repository as Repository;
+
+/**
+ * Fluid 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/Fluid.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.
+ */
+class Fluid extends Repository
+{
+ /**
+ * Figures out the desired type given the cast string ID.
+ * Given a cast ID, this method will return the associated
+ * type (INT(10) or VARCHAR for instance). The returned type
+ * can be processed by the Query Writer to build the specified
+ * column for you in the database. The Cast ID is actually just
+ * a superset of the QueryWriter types. In addition to default
+ * Query Writer column types you can pass the following 'cast types':
+ * 'id' and 'string'. These will map to Query Writer specific
+ * column types (probably INT and VARCHAR).
+ *
+ * @param string $cast cast identifier
+ *
+ * @return integer
+ */
+ private function getTypeFromCast( $cast )
+ {
+ if ( $cast == 'string' ) {
+ $typeno = $this->writer->scanType( 'STRING' );
+ } elseif ( $cast == 'id' ) {
+ $typeno = $this->writer->getTypeForID();
+ } elseif ( isset( $this->writer->sqltype_typeno[$cast] ) ) {
+ $typeno = $this->writer->sqltype_typeno[$cast];
+ } else {
+ throw new RedException( 'Invalid Cast' );
+ }
+
+ return $typeno;
+ }
+
+ /**
+ * Orders the Query Writer to create a table if it does not exist already and
+ * adds a note in the build report about the creation.
+ *
+ * @param OODBBean $bean bean to update report of
+ * @param string $table table to check and create if not exists
+ *
+ * @return void
+ */
+ private function createTableIfNotExists( OODBBean $bean, $table )
+ {
+ //Does table exist? If not, create
+ if ( !$this->tableExists( $this->writer->esc( $table, TRUE ) ) ) {
+ $this->writer->createTable( $table );
+ $bean->setMeta( 'buildreport.flags.created', TRUE );
+ }
+ }
+
+ /**
+ * Modifies the table to fit the bean data.
+ * Given a property and a value and the bean, this method will
+ * adjust the table structure to fit the requirements of the property and value.
+ * This may include adding a new column or widening an existing column to hold a larger
+ * or different kind of value. This method employs the writer to adjust the table
+ * structure in the database. Schema updates are recorded in meta properties of the bean.
+ *
+ * This method will also apply indexes, unique constraints and foreign keys.
+ *
+ * @param OODBBean $bean bean to get cast data from and store meta in
+ * @param string $property property to store
+ * @param mixed $value value to store
+ *
+ * @return void
+ */
+ private function modifySchema( OODBBean $bean, $property, $value )
+ {
+ $doFKStuff = FALSE;
+ $table = $bean->getMeta( 'type' );
+ $columns = $this->writer->getColumns( $table );
+ $columnNoQ = $this->writer->esc( $property, TRUE );
+ if ( !$this->oodb->isChilled( $bean->getMeta( 'type' ) ) ) {
+ if ( $bean->getMeta( "cast.$property", -1 ) !== -1 ) { //check for explicitly specified types
+ $cast = $bean->getMeta( "cast.$property" );
+ $typeno = $this->getTypeFromCast( $cast );
+ } else {
+ $cast = FALSE;
+ $typeno = $this->writer->scanType( $value, TRUE );
+ }
+ if ( isset( $columns[$this->writer->esc( $property, TRUE )] ) ) { //Is this property represented in the table ?
+ if ( !$cast ) { //rescan without taking into account special types >80
+ $typeno = $this->writer->scanType( $value, FALSE );
+ }
+ $sqlt = $this->writer->code( $columns[$this->writer->esc( $property, TRUE )] );
+ if ( $typeno > $sqlt ) { //no, we have to widen the database column type
+ $this->writer->widenColumn( $table, $property, $typeno );
+ $bean->setMeta( 'buildreport.flags.widen', TRUE );
+ $doFKStuff = TRUE;
+ }
+ } else {
+ $this->writer->addColumn( $table, $property, $typeno );
+ $bean->setMeta( 'buildreport.flags.addcolumn', TRUE );
+ $doFKStuff = TRUE;
+ }
+ if ($doFKStuff) {
+ if (strrpos($columnNoQ, '_id')===(strlen($columnNoQ)-3)) {
+ $destinationColumnNoQ = substr($columnNoQ, 0, strlen($columnNoQ)-3);
+ $indexName = "index_foreignkey_{$table}_{$destinationColumnNoQ}";
+ $this->writer->addIndex($table, $indexName, $columnNoQ);
+ $typeof = $bean->getMeta("sys.typeof.{$destinationColumnNoQ}", $destinationColumnNoQ);
+ $isLink = $bean->getMeta( 'sys.buildcommand.unique', FALSE );
+ //Make FK CASCADING if part of exclusive list (dependson=typeof) or if link bean
+ $isDep = ( $bean->moveMeta( 'sys.buildcommand.fkdependson' ) === $typeof || is_array( $isLink ) );
+ $result = $this->writer->addFK( $table, $typeof, $columnNoQ, 'id', $isDep );
+ //If this is a link bean and all unique columns have been added already, then apply unique constraint
+ if ( is_array( $isLink ) && !count( array_diff( $isLink, array_keys( $this->writer->getColumns( $table ) ) ) ) ) {
+ $this->writer->addUniqueConstraint( $table, $bean->moveMeta('sys.buildcommand.unique') );
+ $bean->setMeta("sys.typeof.{$destinationColumnNoQ}", NULL);
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Part of the store() functionality.
+ * Handles all new additions after the bean has been saved.
+ * Stores addition bean in own-list, extracts the id and
+ * adds a foreign key. Also adds a constraint in case the type is
+ * in the dependent list.
+ *
+ * Note that this method raises a custom exception if the bean
+ * is not an instance of OODBBean. Therefore it does not use
+ * a type hint. This allows the user to take action in case
+ * invalid objects are passed in the list.
+ *
+ * @param OODBBean $bean bean to process
+ * @param array $ownAdditions list of addition beans in own-list
+ *
+ * @return void
+ */
+ protected function processAdditions( $bean, $ownAdditions )
+ {
+ $beanType = $bean->getMeta( 'type' );
+
+ foreach ( $ownAdditions as $addition ) {
+ if ( $addition instanceof OODBBean ) {
+
+ $myFieldLink = $beanType . '_id';
+ $alias = $bean->getMeta( 'sys.alias.' . $addition->getMeta( 'type' ) );
+ if ( $alias ) $myFieldLink = $alias . '_id';
+
+ $addition->$myFieldLink = $bean->id;
+ $addition->setMeta( 'cast.' . $myFieldLink, 'id' );
+
+ if ($alias) {
+ $addition->setMeta( "sys.typeof.{$alias}", $beanType );
+ } else {
+ $addition->setMeta( "sys.typeof.{$beanType}", $beanType );
+ }
+
+ $this->store( $addition );
+ } else {
+ throw new RedException( 'Array may only contain OODBBeans' );
+ }
+ }
+ }
+
+ /**
+ * Stores a cleaned bean; i.e. only scalar values. This is the core of the store()
+ * method. When all lists and embedded beans (parent objects) have been processed and
+ * removed from the original bean the bean is passed to this method to be stored
+ * in the database.
+ *
+ * @param OODBBean $bean the clean bean
+ *
+ * @return void
+ */
+ protected function storeBean( OODBBean $bean )
+ {
+ if ( $bean->getMeta( 'changed' ) ) {
+ $this->check( $bean );
+ $table = $bean->getMeta( 'type' );
+ $this->createTableIfNotExists( $bean, $table );
+
+ $updateValues = array();
+ foreach ( $bean as $property => $value ) {
+ if ( $property !== 'id' ) {
+ $this->modifySchema( $bean, $property, $value );
+ }
+ if ( $property !== 'id' ) {
+ $updateValues[] = array( 'property' => $property, 'value' => $value );
+ }
+ }
+
+ $bean->id = $this->writer->updateRecord( $table, $updateValues, $bean->id );
+ $bean->setMeta( 'changed', FALSE );
+ }
+ $bean->setMeta( 'tainted', FALSE );
+ }
+
+ /**
+ * Handles exceptions. Suppresses exceptions caused by missing structures.
+ *
+ * @param Exception $exception exception
+ *
+ * @return void
+ */
+ protected function handleException( \Exception $exception )
+ {
+ if ( !$this->writer->sqlStateIn( $exception->getSQLState(),
+ array(
+ QueryWriter::C_SQLSTATE_NO_SUCH_TABLE,
+ QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN ) )
+ ) {
+ throw $exception;
+ }
+ }
+
+ /**
+ * Dispenses a new bean (a OODBBean Bean Object)
+ * of the specified type. Always
+ * use this function to get an empty bean object. Never
+ * instantiate a OODBBean yourself because it needs
+ * to be configured before you can use it with RedBean. This
+ * function applies the appropriate initialization /
+ * configuration for you.
+ *
+ * @param string $type type of bean you want to dispense
+ * @param string $number number of beans you would like to get
+ * @param boolean $alwaysReturnArray if TRUE always returns the result as an array
+ *
+ * @return OODBBean
+ */
+ public function dispense( $type, $number = 1, $alwaysReturnArray = FALSE )
+ {
+ $OODBBEAN = defined( 'REDBEAN_OODBBEAN_CLASS' ) ? REDBEAN_OODBBEAN_CLASS : '\RedBeanPHP\OODBBean';
+ $beans = array();
+ for ( $i = 0; $i < $number; $i++ ) {
+ $bean = new $OODBBEAN;
+ $bean->initializeForDispense( $type, $this->oodb->getBeanHelper() );
+ $this->check( $bean );
+ $this->oodb->signal( 'dispense', $bean );
+ $beans[] = $bean;
+ }
+
+ return ( count( $beans ) === 1 && !$alwaysReturnArray ) ? array_pop( $beans ) : $beans;
+ }
+
+ /**
+ * Loads a bean from the object database.
+ * It searches for a OODBBean Bean Object in the
+ * database. It does not matter how this bean has been stored.
+ * RedBean uses the primary key ID $id and the string $type
+ * to find the bean. The $type specifies what kind of bean you
+ * are looking for; this is the same type as used with the
+ * dispense() function. If RedBean finds the bean it will return
+ * the OODB Bean object; if it cannot find the bean
+ * RedBean will return a new bean of type $type and with
+ * primary key ID 0. In the latter case it acts basically the
+ * same as dispense().
+ *
+ * Important note:
+ * If the bean cannot be found in the database a new bean of
+ * the specified type will be generated and returned.
+ *
+ * @param string $type type of bean you want to load
+ * @param integer $id ID of the bean you want to load
+ *
+ * @return OODBBean
+ */
+ public function load( $type, $id )
+ {
+ $bean = $this->dispense( $type );
+ if ( isset( $this->stash[$this->nesting][$id] ) ) {
+ $row = $this->stash[$this->nesting][$id];
+ } else {
+ try {
+ $rows = $this->writer->queryRecord( $type, array( 'id' => array( $id ) ) );
+ } catch ( SQLException $exception ) {
+ if ( $this->writer->sqlStateIn( $exception->getSQLState(),
+ array(
+ QueryWriter::C_SQLSTATE_NO_SUCH_COLUMN,
+ QueryWriter::C_SQLSTATE_NO_SUCH_TABLE )
+ )
+ ) {
+ $rows = 0;
+ }
+ }
+ if ( empty( $rows ) ) {
+ return $bean;
+ }
+ $row = array_pop( $rows );
+ }
+ $bean->importRow( $row );
+ $this->nesting++;
+ $this->oodb->signal( 'open', $bean );
+ $this->nesting--;
+
+ return $bean->setMeta( 'tainted', FALSE );
+ }
+}
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