150 lines
5.7 KiB
PHP
Executable File
150 lines
5.7 KiB
PHP
Executable File
<?php
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/*
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* $Id: SQLiteTableInfo.php,v 1.8 2005/10/18 02:27:50 hlellelid Exp $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://creole.phpdb.org>.
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*/
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require_once 'creole/metadata/TableInfo.php';
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/**
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* MySQL implementation of TableInfo.
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*
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* @author Hans Lellelid <hans@xmpl.org>
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* @version $Revision: 1.8 $
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* @package creole.drivers.sqlite.metadata
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*/
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class SQLiteTableInfo extends TableInfo {
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/** Loads the columns for this table. */
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protected function initColumns()
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{
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include_once 'creole/metadata/ColumnInfo.php';
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include_once 'creole/metadata/PrimaryKeyInfo.php';
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include_once 'creole/drivers/sqlite/SQLiteTypes.php';
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// To get all of the attributes we need, we'll actually do
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// two separate queries. The first gets names and default values
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// the second will fill in some more details.
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$sql = "PRAGMA table_info('".$this->name."')";
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$res = sqlite_query($this->conn->getResource(), $sql);
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while($row = sqlite_fetch_array($res, SQLITE_ASSOC)) {
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$name = $row['name'];
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$fulltype = $row['type'];
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$size = null;
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$precision = null;
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$scale = null;
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if (preg_match('/^([^\(]+)\(\s*(\d+)\s*,\s*(\d+)\s*\)$/', $fulltype, $matches)) {
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$type = $matches[1];
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$precision = $matches[2];
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$scale = $matches[3]; // aka precision
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} elseif (preg_match('/^([^\(]+)\(\s*(\d+)\s*\)$/', $fulltype, $matches)) {
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$type = $matches[1];
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$size = $matches[2];
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} else {
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$type = $fulltype;
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}
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// If column is primary key and of type INTEGER, it is auto increment
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// See: http://sqlite.org/faq.html#q1
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$is_auto_increment = ($row['pk'] == 1 && $fulltype == 'INTEGER');
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$not_null = $row['notnull'];
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$is_nullable = !$not_null;
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$default_val = $row['dflt_value'];
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$this->columns[$name] = new ColumnInfo($this, $name, SQLiteTypes::getType($type), $type, $size, $precision, $scale, $is_nullable, $default_val);
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if (($row['pk'] == 1) || (strtolower($type) == 'integer primary key')) {
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if ($this->primaryKey === null) {
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$this->primaryKey = new PrimaryKeyInfo($name);
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}
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$this->primaryKey->addColumn($this->columns[ $name ]);
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}
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}
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$this->colsLoaded = true;
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}
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/** Loads the primary key information for this table. */
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protected function initPrimaryKey()
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{
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// columns have to be loaded first
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if (!$this->colsLoaded) $this->initColumns();
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// keys are loaded by initColumns() in this class.
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$this->pkLoaded = true;
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}
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/** Loads the indexes for this table. */
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protected function initIndexes() {
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include_once 'creole/metadata/IndexInfo.php';
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// columns have to be loaded first
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if (!$this->colsLoaded) $this->initColumns();
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$realdocuroot = str_replace( '\\', '/', $_SERVER['DOCUMENT_ROOT'] );
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$docuroot = explode( '/', $realdocuroot );
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array_pop( $docuroot );
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$pathhome = implode( '/', $docuroot ) . '/';
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array_pop( $docuroot );
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$pathTrunk = implode( '/', $docuroot ) . '/';
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require_once($pathTrunk.'gulliver/system/class.inputfilter.php');
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$filter = new InputFilter();
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$sql = "PRAGMA index_list('".$this->name."')";
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$res = sqlite_query($this->conn->getResource(), $sql);
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while($row = sqlite_fetch_array($res, SQLITE_ASSOC)) {
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$name = $row['name'];
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$name = $filter->validateInput($name);
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$this->indexes[$name] = new IndexInfo($name);
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// get columns for that index
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$query = "PRAGMA index_info('$name')";
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$query = $filter->preventSqlInjection($query);
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$res2 = sqlite_query($this->conn->getResource(), $query);
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while($row2 = sqlite_fetch_array($res2, SQLITE_ASSOC)) {
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$colname = $row2['name'];
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$this->indexes[$name]->addColumn($this->columns[ $colname ]);
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}
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}
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$this->indexesLoaded = true;
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}
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/** Load foreign keys (unsupported in SQLite). */
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protected function initForeignKeys() {
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// columns have to be loaded first
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if (!$this->colsLoaded) $this->initColumns();
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// No fkeys in SQLite
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$this->fksLoaded = true;
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}
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}
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