From: Roland Haeder Date: Wed, 29 Jul 2015 20:40:52 +0000 (+0200) Subject: Moved 'result' into 'database' as the actual class is a database result + added X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=43ba79ff44859684163d7c3d5a5581ef8a89d352;p=core.git Moved 'result' into 'database' as the actual class is a database result + added (functionless) generic class for it. This generic class will be later be expanded with more functionality. Signed-off-by: Roland Häder --- diff --git a/inc/classes/main/database/class_BaseDatabaseResult.php b/inc/classes/main/database/class_BaseDatabaseResult.php new file mode 100644 index 00000000..d41bdcc8 --- /dev/null +++ b/inc/classes/main/database/class_BaseDatabaseResult.php @@ -0,0 +1,38 @@ + + * @version 0.0.0 + * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team + * @license GNU GPL 3.0 or any newer version + * @link http://www.ship-simu.org + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +class BaseDatabaseResult extends BaseFrameworkSystem { + /** + * Protected constructor + * + * @return void + */ + protected function __construct($class = __CLASS__) { + // Call parent constructor + parent::__construct($class); + } +} + +// [EOF] +?> diff --git a/inc/classes/main/database/result/.htaccess b/inc/classes/main/database/result/.htaccess new file mode 100644 index 00000000..3a428827 --- /dev/null +++ b/inc/classes/main/database/result/.htaccess @@ -0,0 +1 @@ +Deny from all diff --git a/inc/classes/main/database/result/class_CachedDatabaseResult.php b/inc/classes/main/database/result/class_CachedDatabaseResult.php new file mode 100644 index 00000000..a2e1d2cd --- /dev/null +++ b/inc/classes/main/database/result/class_CachedDatabaseResult.php @@ -0,0 +1,419 @@ + + * @version 0.0.0 + * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team + * @license GNU GPL 3.0 or any newer version + * @link http://www.shipsimu.org + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ +class CachedDatabaseResult extends BaseDatabaseResult implements SearchableResult, UpdateableResult, SeekableIterator { + // Exception constants + const EXCEPTION_INVALID_DATABASE_RESULT = 0x1c0; + const EXCEPTION_RESULT_UPDATE_FAILED = 0x1c1; + + /** + * Current position in array + */ + private $currentPos = -1; + + /** + * Current row + */ + private $currentRow = NULL; + + /** + * Result array + */ + private $resultArray = array(); + + /** + * Array of out-dated entries + */ + private $outDated = array(); + + /** + * Affected rows + */ + private $affectedRows = 0; + + /** + * Found value + */ + private $foundValue = ''; + + /** + * Protected constructor + * + * @return void + */ + protected function __construct () { + // Call parent constructor + parent::__construct(__CLASS__); + } + + /** + * Creates an instance of this result by a provided result array + * + * @param $resultArray The array holding the result from query + * @return $resultInstance An instance of this class + */ + public static final function createCachedDatabaseResult (array $resultArray) { + // Get a new instance + $resultInstance = new CachedDatabaseResult(); + + // Set the result array + $resultInstance->setResultArray($resultArray); + + // Set affected rows + $resultInstance->setAffectedRows(count($resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS])); + + // Return the instance + return $resultInstance; + } + + /** + * Setter for result array + * + * @param $resultArray The array holding the result from query + * @return void + */ + protected final function setResultArray (array $resultArray) { + $this->resultArray = $resultArray; + } + + /** + * Updates the current entry by given update criteria + * + * @param $updateInstance An instance of an Updateable criteria + * @return void + */ + private function updateCurrentEntryByCriteria (LocalUpdateCriteria $updateInstance) { + // Get the current entry key + $entryKey = $this->key(); + + // Now get the update criteria array and update all entries + foreach ($updateInstance->getUpdateCriteria() as $criteriaKey => $criteriaValue) { + // Update data + $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$entryKey][$criteriaKey] = $criteriaValue; + + // Mark it as out-dated + $this->outDated[$criteriaKey] = 1; + } // END - foreach + } + + /** + * "Iterator" method next() to advance to the next valid entry. This method + * does also check if result is invalid + * + * @return $nextValid Whether the next entry is valid + */ + public function next () { + // Default is not valid + $nextValid = FALSE; + + // Is the result valid? + if ($this->valid()) { + // Next entry found, so count one up and cache it + $this->currentPos++; + $this->currentRow = $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos]; + $nextValid = TRUE; + } // END - if + + // Return the result + return $nextValid; + } + + /** + * Seeks for to a specified position + * + * @param $index Index to seek for + * @return void + */ + public function seek ($index) { + // Rewind to beginning + $this->rewind(); + + // Search for the entry + while (($this->currentPos < $index) && ($this->valid())) { + // Continue on + $this->next(); + } // END - while + } + + /** + * Gives back the current position or null if not found + * + * @return $current Current element to give back + */ + public function current () { + // Default is not found + $current = NULL; + + // Does the current enty exist? + if (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos])) { + // Then get it + $current = $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos]; + } // END - if + + // Return the result + return $current; + } + + /** + * Checks if next() and rewind will give a valid result + * + * @return $isValid Whether the next/rewind entry is valid + */ + public function valid () { + // By default nothing is valid + $isValid = FALSE; + + // Debug message + //*NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] this->currentPos=' . $this->currentPos); + + // Check if all is fine ... + if (($this->ifStatusIsOkay()) && (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][($this->currentPos + 1)])) && (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][0]))) { + // All fine! + $isValid = TRUE; + } // END - if + + // Return the result + return $isValid; + } + + /** + * Returns count of entries + * + * @return $isValid Whether the next/rewind entry is valid + */ + public function count () { + // Return it + return count($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS]); + } + + /** + * Determines whether the status of the query was fine (BaseDatabaseBackend::RESULT_OKAY) + * + * @return $ifStatusOkay Whether the status of the query was okay + */ + public function ifStatusIsOkay () { + $ifStatusOkay = ((isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_STATUS])) && ($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_STATUS] === BaseDatabaseBackend::RESULT_OKAY)); + //*NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] ifStatusOkay=' . intval($ifStatusOkay)); + return $ifStatusOkay; + } + + /** + * Gets the current key of iteration + * + * @return $currentPos Key from iterator + */ + public function key () { + return $this->currentPos; + } + + /** + * Rewind to the beginning and clear array $currentRow + * + * @return void + */ + public function rewind () { + $this->currentPos = -1; + $this->currentRow = array(); + } + + /** + * Searches for an entry in data result and returns it + * + * @param $criteriaInstance The criteria to look inside the data set + * @return $result Found result entry + * @todo 0% done + */ + public function searchEntry (LocalSearchCriteria $criteriaInstance) { + $this->debugBackTrace('[' . '[' . __METHOD__ . ':' . __LINE__ . ']: Unfinished!'); + } + + /** + * Adds an update request to the database result for writing it to the + * database layer + * + * @param $criteriaInstance An instance of a updateable criteria + * @return void + * @throws ResultUpdateException If no result was updated + */ + public function add2UpdateQueue (LocalUpdateCriteria $criteriaInstance) { + // Rewind the pointer + $this->rewind(); + + // Get search criteria + $searchInstance = $criteriaInstance->getSearchInstance(); + + // And start looking for the result + $foundEntries = 0; + while (($this->valid()) && ($foundEntries < $searchInstance->getLimit())) { + // Get next entry + $this->next(); + $currentEntry = $this->current(); + + // Is this entry found? + if ($searchInstance->ifEntryMatches($currentEntry)) { + // Update this entry + $this->updateCurrentEntryByCriteria($criteriaInstance); + + // Count one up + $foundEntries++; + } // END - if + } // END - while + + // If no entry is found/updated throw an exception + if ($foundEntries == 0) { + // Throw an exception here + throw new ResultUpdateException($this, self::EXCEPTION_RESULT_UPDATE_FAILED); + } // END - if + + // Set affected rows + $this->setAffectedRows($foundEntries); + + // Set update instance + $this->setUpdateInstance($criteriaInstance); + } + + /** + * Setter for affected rows + * + * @param $rows Number of affected rows + * @return void + */ + public final function setAffectedRows ($rows) { + $this->affectedRows = $rows; + } + + /** + * Getter for affected rows + * + * @return $rows Number of affected rows + */ + public final function getAffectedRows () { + return $this->affectedRows; + } + + /** + * Getter for found value of previous found() call + * + * @return $foundValue Found value of previous found() call + */ + public final function getFoundValue () { + return $this->foundValue; + } + + /** + * Checks whether we have out-dated entries or not + * + * @return $needsUpdate Whether we have out-dated entries + */ + public function ifDataNeedsFlush () { + $needsUpdate = (count($this->outDated) > 0); + return $needsUpdate; + } + + /** + * Adds registration elements to a given dataset instance + * + * @param $criteriaInstance An instance of a StoreableCriteria class + * @param $requestInstance An instance of a Requestable class + * @return void + */ + public function addElementsToDataSet (StoreableCriteria $criteriaInstance, Requestable $requestInstance = NULL) { + // Walk only through out-dated columns + foreach ($this->outDated as $key => $dummy) { + // Does this key exist? + //* DEBUG: */ echo "outDated: {$key}
\n"; + if ($this->find($key)) { + // Then update it + $criteriaInstance->addCriteria($key, $this->getFoundValue()); + } // END - if + } // END - foreach + } + + /** + * Find a key inside the result array + * + * @param $key The key we shall find + * @return $found Whether the key was found or not + */ + public function find ($key) { + // By default nothing is found + $found = FALSE; + + // Rewind the pointer + $this->rewind(); + + // Walk through all entries + while ($this->valid()) { + // Advance to next entry + $this->next(); + + // Get the whole array + $currentEntry = $this->current(); + + // Is the element there? + if (isset($currentEntry[$key])) { + // Okay, found! + $found = TRUE; + + // So "cache" it + $this->foundValue = $currentEntry[$key]; + + // And stop searching + break; + } // END - if + } // END - while + + // Return the result + return $found; + } + + /** + * Solver for result index value with call-back method + * + * @param $databaseColumn Database column where the index might be found + * @param $wrapperInstance The wrapper instance to ask for array element + * @para $callBack Call-back object for setting the index; + * 0=object instance,1=method name + * @return void + * @todo Find a caching way without modifying the result array + */ + public function solveResultIndex ($databaseColumn, DatabaseWrapper $wrapperInstance, array $callBack) { + // By default nothing is found + $indexValue = 0; + + // Is the element in result itself found? + if ($this->find($databaseColumn)) { + // Use this value + $indexValue = $this->getFoundValue(); + } elseif ($this->find($wrapperInstance->getIndexKey())) { + // Use this value + $indexValue = $this->getFoundValue(); + } + + // Set the index + call_user_func_array($callBack, array($indexValue)); + } +} + +// [EOF] +?> diff --git a/inc/classes/main/result/.htaccess b/inc/classes/main/result/.htaccess deleted file mode 100644 index 3a428827..00000000 --- a/inc/classes/main/result/.htaccess +++ /dev/null @@ -1 +0,0 @@ -Deny from all diff --git a/inc/classes/main/result/class_CachedDatabaseResult.php b/inc/classes/main/result/class_CachedDatabaseResult.php deleted file mode 100644 index 5a33bbfc..00000000 --- a/inc/classes/main/result/class_CachedDatabaseResult.php +++ /dev/null @@ -1,419 +0,0 @@ - - * @version 0.0.0 - * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team - * @license GNU GPL 3.0 or any newer version - * @link http://www.shipsimu.org - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ -class CachedDatabaseResult extends BaseFrameworkSystem implements SearchableResult, UpdateableResult, SeekableIterator { - // Exception constants - const EXCEPTION_INVALID_DATABASE_RESULT = 0x1c0; - const EXCEPTION_RESULT_UPDATE_FAILED = 0x1c1; - - /** - * Current position in array - */ - private $currentPos = -1; - - /** - * Current row - */ - private $currentRow = NULL; - - /** - * Result array - */ - private $resultArray = array(); - - /** - * Array of out-dated entries - */ - private $outDated = array(); - - /** - * Affected rows - */ - private $affectedRows = 0; - - /** - * Found value - */ - private $foundValue = ''; - - /** - * Protected constructor - * - * @return void - */ - protected function __construct () { - // Call parent constructor - parent::__construct(__CLASS__); - } - - /** - * Creates an instance of this result by a provided result array - * - * @param $resultArray The array holding the result from query - * @return $resultInstance An instance of this class - */ - public static final function createCachedDatabaseResult (array $resultArray) { - // Get a new instance - $resultInstance = new CachedDatabaseResult(); - - // Set the result array - $resultInstance->setResultArray($resultArray); - - // Set affected rows - $resultInstance->setAffectedRows(count($resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS])); - - // Return the instance - return $resultInstance; - } - - /** - * Setter for result array - * - * @param $resultArray The array holding the result from query - * @return void - */ - protected final function setResultArray (array $resultArray) { - $this->resultArray = $resultArray; - } - - /** - * Updates the current entry by given update criteria - * - * @param $updateInstance An instance of an Updateable criteria - * @return void - */ - private function updateCurrentEntryByCriteria (LocalUpdateCriteria $updateInstance) { - // Get the current entry key - $entryKey = $this->key(); - - // Now get the update criteria array and update all entries - foreach ($updateInstance->getUpdateCriteria() as $criteriaKey => $criteriaValue) { - // Update data - $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$entryKey][$criteriaKey] = $criteriaValue; - - // Mark it as out-dated - $this->outDated[$criteriaKey] = 1; - } // END - foreach - } - - /** - * "Iterator" method next() to advance to the next valid entry. This method - * does also check if result is invalid - * - * @return $nextValid Whether the next entry is valid - */ - public function next () { - // Default is not valid - $nextValid = FALSE; - - // Is the result valid? - if ($this->valid()) { - // Next entry found, so count one up and cache it - $this->currentPos++; - $this->currentRow = $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos]; - $nextValid = TRUE; - } // END - if - - // Return the result - return $nextValid; - } - - /** - * Seeks for to a specified position - * - * @param $index Index to seek for - * @return void - */ - public function seek ($index) { - // Rewind to beginning - $this->rewind(); - - // Search for the entry - while (($this->currentPos < $index) && ($this->valid())) { - // Continue on - $this->next(); - } // END - while - } - - /** - * Gives back the current position or null if not found - * - * @return $current Current element to give back - */ - public function current () { - // Default is not found - $current = NULL; - - // Does the current enty exist? - if (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos])) { - // Then get it - $current = $this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][$this->currentPos]; - } // END - if - - // Return the result - return $current; - } - - /** - * Checks if next() and rewind will give a valid result - * - * @return $isValid Whether the next/rewind entry is valid - */ - public function valid () { - // By default nothing is valid - $isValid = FALSE; - - // Debug message - //*NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] this->currentPos=' . $this->currentPos); - - // Check if all is fine ... - if (($this->ifStatusIsOkay()) && (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][($this->currentPos + 1)])) && (isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS][0]))) { - // All fine! - $isValid = TRUE; - } // END - if - - // Return the result - return $isValid; - } - - /** - * Returns count of entries - * - * @return $isValid Whether the next/rewind entry is valid - */ - public function count () { - // Return it - return count($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_ROWS]); - } - - /** - * Determines whether the status of the query was fine (BaseDatabaseBackend::RESULT_OKAY) - * - * @return $ifStatusOkay Whether the status of the query was okay - */ - public function ifStatusIsOkay () { - $ifStatusOkay = ((isset($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_STATUS])) && ($this->resultArray[BaseDatabaseBackend::RESULT_INDEX_STATUS] === BaseDatabaseBackend::RESULT_OKAY)); - //*NOISY-DEBUG: */ self::createDebugInstance(__CLASS__)->debugOutput('[' . __METHOD__ . ':' . __LINE__ . '] ifStatusOkay=' . intval($ifStatusOkay)); - return $ifStatusOkay; - } - - /** - * Gets the current key of iteration - * - * @return $currentPos Key from iterator - */ - public function key () { - return $this->currentPos; - } - - /** - * Rewind to the beginning and clear array $currentRow - * - * @return void - */ - public function rewind () { - $this->currentPos = -1; - $this->currentRow = array(); - } - - /** - * Searches for an entry in data result and returns it - * - * @param $criteriaInstance The criteria to look inside the data set - * @return $result Found result entry - * @todo 0% done - */ - public function searchEntry (LocalSearchCriteria $criteriaInstance) { - $this->debugBackTrace('[' . '[' . __METHOD__ . ':' . __LINE__ . ']: Unfinished!'); - } - - /** - * Adds an update request to the database result for writing it to the - * database layer - * - * @param $criteriaInstance An instance of a updateable criteria - * @return void - * @throws ResultUpdateException If no result was updated - */ - public function add2UpdateQueue (LocalUpdateCriteria $criteriaInstance) { - // Rewind the pointer - $this->rewind(); - - // Get search criteria - $searchInstance = $criteriaInstance->getSearchInstance(); - - // And start looking for the result - $foundEntries = 0; - while (($this->valid()) && ($foundEntries < $searchInstance->getLimit())) { - // Get next entry - $this->next(); - $currentEntry = $this->current(); - - // Is this entry found? - if ($searchInstance->ifEntryMatches($currentEntry)) { - // Update this entry - $this->updateCurrentEntryByCriteria($criteriaInstance); - - // Count one up - $foundEntries++; - } // END - if - } // END - while - - // If no entry is found/updated throw an exception - if ($foundEntries == 0) { - // Throw an exception here - throw new ResultUpdateException($this, self::EXCEPTION_RESULT_UPDATE_FAILED); - } // END - if - - // Set affected rows - $this->setAffectedRows($foundEntries); - - // Set update instance - $this->setUpdateInstance($criteriaInstance); - } - - /** - * Setter for affected rows - * - * @param $rows Number of affected rows - * @return void - */ - public final function setAffectedRows ($rows) { - $this->affectedRows = $rows; - } - - /** - * Getter for affected rows - * - * @return $rows Number of affected rows - */ - public final function getAffectedRows () { - return $this->affectedRows; - } - - /** - * Getter for found value of previous found() call - * - * @return $foundValue Found value of previous found() call - */ - public final function getFoundValue () { - return $this->foundValue; - } - - /** - * Checks whether we have out-dated entries or not - * - * @return $needsUpdate Whether we have out-dated entries - */ - public function ifDataNeedsFlush () { - $needsUpdate = (count($this->outDated) > 0); - return $needsUpdate; - } - - /** - * Adds registration elements to a given dataset instance - * - * @param $criteriaInstance An instance of a StoreableCriteria class - * @param $requestInstance An instance of a Requestable class - * @return void - */ - public function addElementsToDataSet (StoreableCriteria $criteriaInstance, Requestable $requestInstance = NULL) { - // Walk only through out-dated columns - foreach ($this->outDated as $key => $dummy) { - // Does this key exist? - //* DEBUG: */ echo "outDated: {$key}
\n"; - if ($this->find($key)) { - // Then update it - $criteriaInstance->addCriteria($key, $this->getFoundValue()); - } // END - if - } // END - foreach - } - - /** - * Find a key inside the result array - * - * @param $key The key we shall find - * @return $found Whether the key was found or not - */ - public function find ($key) { - // By default nothing is found - $found = FALSE; - - // Rewind the pointer - $this->rewind(); - - // Walk through all entries - while ($this->valid()) { - // Advance to next entry - $this->next(); - - // Get the whole array - $currentEntry = $this->current(); - - // Is the element there? - if (isset($currentEntry[$key])) { - // Okay, found! - $found = TRUE; - - // So "cache" it - $this->foundValue = $currentEntry[$key]; - - // And stop searching - break; - } // END - if - } // END - while - - // Return the result - return $found; - } - - /** - * Solver for result index value with call-back method - * - * @param $databaseColumn Database column where the index might be found - * @param $wrapperInstance The wrapper instance to ask for array element - * @para $callBack Call-back object for setting the index; - * 0=object instance,1=method name - * @return void - * @todo Find a caching way without modifying the result array - */ - public function solveResultIndex ($databaseColumn, DatabaseWrapper $wrapperInstance, array $callBack) { - // By default nothing is found - $indexValue = 0; - - // Is the element in result itself found? - if ($this->find($databaseColumn)) { - // Use this value - $indexValue = $this->getFoundValue(); - } elseif ($this->find($wrapperInstance->getIndexKey())) { - // Use this value - $indexValue = $this->getFoundValue(); - } - - // Set the index - call_user_func_array($callBack, array($indexValue)); - } -} - -// [EOF] -?>