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8dc3486a04
With Oracle 19 being the minimum version for Moodle >= 4.1, now we can safely raise the table and column length limits by a considerable amount. In both tables and columns the new limit it 63, coming from PostgreSQL, that is the one now having the more restrictive limit. 1) NP with columns, let's allow up to 63 ascii chars (bytes) there. 2) But, for table names, now we need to specify a maximum prefix length, to know how many chars we leave remaining for table names (without prefix). 63 - 10 (max prefix length) = 53 ascii chars (bytes). So, in this patch, we are introducing a new constant: xmldb_table::PREFIX_MAX_LENGTH = 10 That will be used to: - Validate that we aren't using a prefix longer than it. - Calculate the final table limit that will be 63 minus the prefix max length. Details added to 4.2 main upgrade.txt file. Also, update related to tests to (near) always use the constants so they won't need modification in the future.
863 lines
28 KiB
PHP
863 lines
28 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This class represent one XMLDB table
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*
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* @package core_xmldb
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* @copyright 1999 onwards Martin Dougiamas http://dougiamas.com
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* 2001-3001 Eloy Lafuente (stronk7) http://contiento.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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class xmldb_table extends xmldb_object {
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/** @var xmldb_field[] table columns */
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protected $fields;
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/** @var xmldb_key[] keys */
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protected $keys;
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/** @var xmldb_index[] indexes */
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protected $indexes;
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/** @var int max length of table name prefixes */
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const PREFIX_MAX_LENGTH = 10;
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/**
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* Note:
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* - PostgreSQL has a limit of 63 ascii chars (bytes) for table names. Others have greater limits.
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* Up to PREFIX_MAX_LENGTH ascii chars (bytes) are reserved for table prefixes.
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*
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* @var int max length of table names (without prefix).
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*/
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const NAME_MAX_LENGTH = 63 - self::PREFIX_MAX_LENGTH;
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/**
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* Creates one new xmldb_table
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* @param string $name
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*/
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public function __construct($name) {
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parent::__construct($name);
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$this->fields = array();
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$this->keys = array();
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$this->indexes = array();
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}
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/**
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* Add one field to the table, allowing to specify the desired order
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* If it's not specified, then the field is added at the end
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* @param xmldb_field $field
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* @param xmldb_object $after
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* @return xmldb_field
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*/
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public function addField($field, $after=null) {
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// Detect duplicates first
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if ($this->getField($field->getName())) {
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throw new coding_exception('Duplicate field '.$field->getName().' specified in table '.$this->getName());
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}
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// Calculate the previous and next fields
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$prevfield = null;
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$nextfield = null;
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if (!$after) {
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$allfields = $this->getFields();
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if (!empty($allfields)) {
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end($allfields);
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$prevfield = $allfields[key($allfields)];
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}
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} else {
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$prevfield = $this->getField($after);
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}
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if ($prevfield && $prevfield->getNext()) {
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$nextfield = $this->getField($prevfield->getNext());
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}
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// Set current field previous and next attributes
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if ($prevfield) {
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$field->setPrevious($prevfield->getName());
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$prevfield->setNext($field->getName());
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}
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if ($nextfield) {
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$field->setNext($nextfield->getName());
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$nextfield->setPrevious($field->getName());
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}
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// Some more attributes
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$field->setLoaded(true);
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$field->setChanged(true);
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// Add the new field
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$this->fields[] = $field;
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// Reorder the field
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$this->orderFields($this->fields);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one new field, so the table has changed
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$this->setChanged(true);
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return $field;
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}
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/**
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* Add one key to the table, allowing to specify the desired order
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* If it's not specified, then the key is added at the end
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* @param xmldb_key $key
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* @param xmldb_object $after
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*/
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public function addKey($key, $after=null) {
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// Detect duplicates first
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if ($this->getKey($key->getName())) {
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throw new coding_exception('Duplicate key '.$key->getName().' specified in table '.$this->getName());
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}
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// Make sure there are no indexes with the key column specs because they would collide.
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$newfields = $key->getFields();
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$allindexes = $this->getIndexes();
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foreach ($allindexes as $index) {
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$fields = $index->getFields();
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if ($fields === $newfields) {
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throw new coding_exception('Index '.$index->getName().' collides with key'.$key->getName().' specified in table '.$this->getName());
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}
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}
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// Calculate the previous and next keys
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$prevkey = null;
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$nextkey = null;
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if (!$after) {
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$allkeys = $this->getKeys();
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if (!empty($allkeys)) {
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end($allkeys);
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$prevkey = $allkeys[key($allkeys)];
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}
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} else {
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$prevkey = $this->getKey($after);
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}
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if ($prevkey && $prevkey->getNext()) {
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$nextkey = $this->getKey($prevkey->getNext());
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}
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// Set current key previous and next attributes
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if ($prevkey) {
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$key->setPrevious($prevkey->getName());
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$prevkey->setNext($key->getName());
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}
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if ($nextkey) {
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$key->setNext($nextkey->getName());
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$nextkey->setPrevious($key->getName());
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}
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// Some more attributes
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$key->setLoaded(true);
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$key->setChanged(true);
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// Add the new key
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$this->keys[] = $key;
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// Reorder the keys
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$this->orderKeys($this->keys);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one new field, so the table has changed
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$this->setChanged(true);
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}
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/**
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* Add one index to the table, allowing to specify the desired order
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* If it's not specified, then the index is added at the end
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* @param xmldb_index $index
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* @param xmldb_object $after
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*/
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public function addIndex($index, $after=null) {
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// Detect duplicates first
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if ($this->getIndex($index->getName())) {
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throw new coding_exception('Duplicate index '.$index->getName().' specified in table '.$this->getName());
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}
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// Make sure there are no keys with the index column specs because they would collide.
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$newfields = $index->getFields();
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$allkeys = $this->getKeys();
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foreach ($allkeys as $key) {
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$fields = $key->getFields();
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if ($fields === $newfields) {
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throw new coding_exception('Key '.$key->getName().' collides with index'.$index->getName().' specified in table '.$this->getName());
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}
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}
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// Calculate the previous and next indexes
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$previndex = null;
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$nextindex = null;
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if (!$after) {
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$allindexes = $this->getIndexes();
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if (!empty($allindexes)) {
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end($allindexes);
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$previndex = $allindexes[key($allindexes)];
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}
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} else {
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$previndex = $this->getIndex($after);
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}
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if ($previndex && $previndex->getNext()) {
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$nextindex = $this->getIndex($previndex->getNext());
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}
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// Set current index previous and next attributes
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if ($previndex) {
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$index->setPrevious($previndex->getName());
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$previndex->setNext($index->getName());
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}
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if ($nextindex) {
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$index->setNext($nextindex->getName());
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$nextindex->setPrevious($index->getName());
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}
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// Some more attributes
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$index->setLoaded(true);
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$index->setChanged(true);
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// Add the new index
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$this->indexes[] = $index;
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// Reorder the indexes
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$this->orderIndexes($this->indexes);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one new index, so the table has changed
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$this->setChanged(true);
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}
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/**
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* This function will return the array of fields in the table
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* @return xmldb_field[]
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*/
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public function getFields() {
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return $this->fields;
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}
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/**
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* This function will return the array of keys in the table
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* @return xmldb_key[]
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*/
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public function getKeys() {
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return $this->keys;
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}
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/**
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* This function will return the array of indexes in the table
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* @return xmldb_index[]
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*/
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public function getIndexes() {
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return $this->indexes;
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}
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/**
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* Returns one xmldb_field
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* @param string $fieldname
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* @return xmldb_field|null
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*/
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public function getField($fieldname) {
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$i = $this->findFieldInArray($fieldname);
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if ($i !== null) {
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return $this->fields[$i];
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}
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return null;
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}
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/**
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* Returns the position of one field in the array.
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* @param string $fieldname
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* @return int|null index of the field, or null if not found.
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*/
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public function findFieldInArray($fieldname) {
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foreach ($this->fields as $i => $field) {
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if ($fieldname == $field->getName()) {
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return $i;
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}
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}
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return null;
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}
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/**
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* This function will reorder the array of fields
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* @return bool whether the reordering succeeded.
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*/
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public function orderFields() {
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$result = $this->orderElements($this->fields);
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if ($result) {
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$this->setFields($result);
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return true;
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} else {
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return false;
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}
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}
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/**
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* Returns one xmldb_key
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* @param string $keyname
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* @return xmldb_key|null
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*/
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public function getKey($keyname) {
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$i = $this->findKeyInArray($keyname);
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if ($i !== null) {
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return $this->keys[$i];
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}
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return null;
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}
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/**
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* Returns the position of one key in the array.
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* @param string $keyname
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* @return int|null index of the key, or null if not found.
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*/
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public function findKeyInArray($keyname) {
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foreach ($this->keys as $i => $key) {
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if ($keyname == $key->getName()) {
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return $i;
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}
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}
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return null;
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}
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/**
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* This function will reorder the array of keys
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* @return bool whether the reordering succeeded.
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*/
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public function orderKeys() {
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$result = $this->orderElements($this->keys);
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if ($result) {
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$this->setKeys($result);
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return true;
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} else {
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return false;
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}
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}
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/**
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* Returns one xmldb_index
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* @param string $indexname
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* @return xmldb_index|null
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*/
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public function getIndex($indexname) {
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$i = $this->findIndexInArray($indexname);
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if ($i !== null) {
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return $this->indexes[$i];
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}
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return null;
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}
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/**
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* Returns the position of one index in the array.
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* @param string $indexname
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* @return int|null index of the index, or null if not found.
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*/
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public function findIndexInArray($indexname) {
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foreach ($this->indexes as $i => $index) {
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if ($indexname == $index->getName()) {
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return $i;
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}
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}
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return null;
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}
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/**
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* This function will reorder the array of indexes
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* @return bool whether the reordering succeeded.
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*/
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public function orderIndexes() {
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$result = $this->orderElements($this->indexes);
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if ($result) {
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$this->setIndexes($result);
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return true;
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} else {
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return false;
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}
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}
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/**
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* This function will set the array of fields in the table
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* @param xmldb_field[] $fields
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*/
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public function setFields($fields) {
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$this->fields = $fields;
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}
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/**
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* This function will set the array of keys in the table
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* @param xmldb_key[] $keys
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*/
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public function setKeys($keys) {
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$this->keys = $keys;
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}
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/**
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* This function will set the array of indexes in the table
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* @param xmldb_index[] $indexes
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*/
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public function setIndexes($indexes) {
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$this->indexes = $indexes;
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}
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/**
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* Delete one field from the table
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* @param string $fieldname
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*/
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public function deleteField($fieldname) {
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$field = $this->getField($fieldname);
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if ($field) {
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$i = $this->findFieldInArray($fieldname);
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// Look for prev and next field
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$prevfield = $this->getField($field->getPrevious());
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$nextfield = $this->getField($field->getNext());
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// Change their previous and next attributes
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if ($prevfield) {
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$prevfield->setNext($field->getNext());
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}
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if ($nextfield) {
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$nextfield->setPrevious($field->getPrevious());
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}
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// Delete the field
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unset($this->fields[$i]);
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// Reorder the whole structure
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$this->orderFields($this->fields);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one deleted field, so the table has changed
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$this->setChanged(true);
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}
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}
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/**
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* Delete one key from the table
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* @param string $keyname
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*/
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public function deleteKey($keyname) {
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$key = $this->getKey($keyname);
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if ($key) {
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$i = $this->findKeyInArray($keyname);
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// Look for prev and next key
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$prevkey = $this->getKey($key->getPrevious());
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$nextkey = $this->getKey($key->getNext());
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// Change their previous and next attributes
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if ($prevkey) {
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$prevkey->setNext($key->getNext());
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}
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if ($nextkey) {
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$nextkey->setPrevious($key->getPrevious());
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}
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// Delete the key
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unset($this->keys[$i]);
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// Reorder the Keys
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$this->orderKeys($this->keys);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one deleted key, so the table has changed
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$this->setChanged(true);
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}
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}
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/**
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* Delete one index from the table
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* @param string $indexname
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*/
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public function deleteIndex($indexname) {
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$index = $this->getIndex($indexname);
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if ($index) {
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$i = $this->findIndexInArray($indexname);
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// Look for prev and next index
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$previndex = $this->getIndex($index->getPrevious());
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$nextindex = $this->getIndex($index->getNext());
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// Change their previous and next attributes
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if ($previndex) {
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$previndex->setNext($index->getNext());
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}
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if ($nextindex) {
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$nextindex->setPrevious($index->getPrevious());
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}
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// Delete the index
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unset($this->indexes[$i]);
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// Reorder the indexes
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$this->orderIndexes($this->indexes);
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// Recalculate the hash
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$this->calculateHash(true);
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// We have one deleted index, so the table has changed
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$this->setChanged(true);
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}
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}
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/**
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* Load data from XML to the table
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* @param array $xmlarr
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* @return bool success
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*/
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public function arr2xmldb_table($xmlarr) {
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global $CFG;
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$result = true;
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// Debug the table
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// traverse_xmlize($xmlarr); //Debug
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// print_object ($GLOBALS['traverse_array']); //Debug
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// $GLOBALS['traverse_array']=""; //Debug
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// Process table attributes (name, comment, previoustable and nexttable)
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if (isset($xmlarr['@']['NAME'])) {
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$this->name = trim($xmlarr['@']['NAME']);
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} else {
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$this->errormsg = 'Missing NAME attribute';
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$this->debug($this->errormsg);
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$result = false;
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}
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if (isset($xmlarr['@']['COMMENT'])) {
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$this->comment = trim($xmlarr['@']['COMMENT']);
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} else if (!empty($CFG->xmldbdisablecommentchecking)) {
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$this->comment = '';
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} else {
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$this->errormsg = 'Missing COMMENT attribute';
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$this->debug($this->errormsg);
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$result = false;
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}
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// Iterate over fields
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if (isset($xmlarr['#']['FIELDS']['0']['#']['FIELD'])) {
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foreach ($xmlarr['#']['FIELDS']['0']['#']['FIELD'] as $xmlfield) {
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if (!$result) { //Skip on error
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continue;
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}
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$name = trim($xmlfield['@']['NAME']);
|
|
$field = new xmldb_field($name);
|
|
$field->arr2xmldb_field($xmlfield);
|
|
$this->fields[] = $field;
|
|
if (!$field->isLoaded()) {
|
|
$this->errormsg = 'Problem loading field ' . $name;
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
}
|
|
} else {
|
|
$this->errormsg = 'Missing FIELDS section';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
|
|
// Perform some general checks over fields
|
|
if ($result && $this->fields) {
|
|
// Check field names are ok (lowercase, a-z _-)
|
|
if (!$this->checkNameValues($this->fields)) {
|
|
$this->errormsg = 'Some FIELDS name values are incorrect';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
// Compute prev/next.
|
|
$this->fixPrevNext($this->fields);
|
|
// Order fields
|
|
if ($result && !$this->orderFields($this->fields)) {
|
|
$this->errormsg = 'Error ordering the fields';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
}
|
|
|
|
// Iterate over keys
|
|
if (isset($xmlarr['#']['KEYS']['0']['#']['KEY'])) {
|
|
foreach ($xmlarr['#']['KEYS']['0']['#']['KEY'] as $xmlkey) {
|
|
if (!$result) { //Skip on error
|
|
continue;
|
|
}
|
|
$name = trim($xmlkey['@']['NAME']);
|
|
$key = new xmldb_key($name);
|
|
$key->arr2xmldb_key($xmlkey);
|
|
$this->keys[] = $key;
|
|
if (!$key->isLoaded()) {
|
|
$this->errormsg = 'Problem loading key ' . $name;
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
}
|
|
} else {
|
|
$this->errormsg = 'Missing KEYS section (at least one PK must exist)';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
|
|
// Perform some general checks over keys
|
|
if ($result && $this->keys) {
|
|
// Check keys names are ok (lowercase, a-z _-)
|
|
if (!$this->checkNameValues($this->keys)) {
|
|
$this->errormsg = 'Some KEYS name values are incorrect';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
// Compute prev/next.
|
|
$this->fixPrevNext($this->keys);
|
|
// Order keys
|
|
if ($result && !$this->orderKeys($this->keys)) {
|
|
$this->errormsg = 'Error ordering the keys';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
// TODO: Only one PK
|
|
// TODO: Not keys with repeated fields
|
|
// TODO: Check fields and reffieds exist in table
|
|
}
|
|
|
|
// Iterate over indexes
|
|
if (isset($xmlarr['#']['INDEXES']['0']['#']['INDEX'])) {
|
|
foreach ($xmlarr['#']['INDEXES']['0']['#']['INDEX'] as $xmlindex) {
|
|
if (!$result) { //Skip on error
|
|
continue;
|
|
}
|
|
$name = trim($xmlindex['@']['NAME']);
|
|
$index = new xmldb_index($name);
|
|
$index->arr2xmldb_index($xmlindex);
|
|
$this->indexes[] = $index;
|
|
if (!$index->isLoaded()) {
|
|
$this->errormsg = 'Problem loading index ' . $name;
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Perform some general checks over indexes
|
|
if ($result && $this->indexes) {
|
|
// Check field names are ok (lowercase, a-z _-)
|
|
if (!$this->checkNameValues($this->indexes)) {
|
|
$this->errormsg = 'Some INDEXES name values are incorrect';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
// Compute prev/next.
|
|
$this->fixPrevNext($this->indexes);
|
|
// Order indexes
|
|
if ($result && !$this->orderIndexes($this->indexes)) {
|
|
$this->errormsg = 'Error ordering the indexes';
|
|
$this->debug($this->errormsg);
|
|
$result = false;
|
|
}
|
|
// TODO: Not indexes with repeated fields
|
|
// TODO: Check fields exist in table
|
|
}
|
|
|
|
// Set some attributes
|
|
if ($result) {
|
|
$this->loaded = true;
|
|
}
|
|
$this->calculateHash();
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* This function calculate and set the hash of one xmldb_table
|
|
* @param bool $recursive
|
|
*/
|
|
public function calculateHash($recursive = false) {
|
|
if (!$this->loaded) {
|
|
$this->hash = null;
|
|
} else {
|
|
$key = $this->name . $this->comment;
|
|
if ($this->fields) {
|
|
foreach ($this->fields as $fie) {
|
|
$field = $this->getField($fie->getName());
|
|
if ($recursive) {
|
|
$field->calculateHash($recursive);
|
|
}
|
|
$key .= $field->getHash();
|
|
}
|
|
}
|
|
if ($this->keys) {
|
|
foreach ($this->keys as $ke) {
|
|
$k = $this->getKey($ke->getName());
|
|
if ($recursive) {
|
|
$k->calculateHash($recursive);
|
|
}
|
|
$key .= $k->getHash();
|
|
}
|
|
}
|
|
if ($this->indexes) {
|
|
foreach ($this->indexes as $in) {
|
|
$index = $this->getIndex($in->getName());
|
|
if ($recursive) {
|
|
$index->calculateHash($recursive);
|
|
}
|
|
$key .= $index->getHash();
|
|
}
|
|
}
|
|
$this->hash = md5($key);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validates the table restrictions (does not validate child elements).
|
|
*
|
|
* The error message should not be localised because it is intended for developers,
|
|
* end users and admins should never see these problems!
|
|
*
|
|
* @param xmldb_table $xmldb_table optional when object is table
|
|
* @return string null if ok, error message if problem found
|
|
*/
|
|
public function validateDefinition(xmldb_table $xmldb_table=null) {
|
|
// table parameter is ignored
|
|
$name = $this->getName();
|
|
if (strlen($name) > self::NAME_MAX_LENGTH) {
|
|
return 'Invalid table name {'.$name.'}: name is too long. Limit is '.self::NAME_MAX_LENGTH.' chars.';
|
|
}
|
|
if (!preg_match('/^[a-z][a-z0-9_]*$/', $name)) {
|
|
return 'Invalid table name {'.$name.'}: name includes invalid characters.';
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* This function will output the XML text for one table
|
|
* @return string
|
|
*/
|
|
public function xmlOutput() {
|
|
$o = '';
|
|
$o.= ' <TABLE NAME="' . $this->name . '"';
|
|
if ($this->comment) {
|
|
$o.= ' COMMENT="' . htmlspecialchars($this->comment, ENT_COMPAT) . '"';
|
|
}
|
|
$o.= '>' . "\n";
|
|
// Now the fields
|
|
if ($this->fields) {
|
|
$o.= ' <FIELDS>' . "\n";
|
|
foreach ($this->fields as $field) {
|
|
$o.= $field->xmlOutput();
|
|
}
|
|
$o.= ' </FIELDS>' . "\n";
|
|
}
|
|
// Now the keys
|
|
if ($this->keys) {
|
|
$o.= ' <KEYS>' . "\n";
|
|
foreach ($this->keys as $key) {
|
|
$o.= $key->xmlOutput();
|
|
}
|
|
$o.= ' </KEYS>' . "\n";
|
|
}
|
|
// Now the indexes
|
|
if ($this->indexes) {
|
|
$o.= ' <INDEXES>' . "\n";
|
|
foreach ($this->indexes as $index) {
|
|
$o.= $index->xmlOutput();
|
|
}
|
|
$o.= ' </INDEXES>' . "\n";
|
|
}
|
|
$o.= ' </TABLE>' . "\n";
|
|
|
|
return $o;
|
|
}
|
|
|
|
/**
|
|
* This function will add one new field to the table with all
|
|
* its attributes defined
|
|
*
|
|
* @param string $name name of the field
|
|
* @param int $type XMLDB_TYPE_INTEGER, XMLDB_TYPE_NUMBER, XMLDB_TYPE_CHAR, XMLDB_TYPE_TEXT, XMLDB_TYPE_BINARY
|
|
* @param string $precision length for integers and chars, two-comma separated numbers for numbers
|
|
* @param bool $unsigned XMLDB_UNSIGNED or null (or false)
|
|
* @param bool $notnull XMLDB_NOTNULL or null (or false)
|
|
* @param bool $sequence XMLDB_SEQUENCE or null (or false)
|
|
* @param mixed $default meaningful default o null (or false)
|
|
* @param xmldb_object $previous name of the previous field in the table or null (or false)
|
|
* @return xmlddb_field
|
|
*/
|
|
public function add_field($name, $type, $precision=null, $unsigned=null, $notnull=null, $sequence=null, $default=null, $previous=null) {
|
|
$field = new xmldb_field($name, $type, $precision, $unsigned, $notnull, $sequence, $default);
|
|
$this->addField($field, $previous);
|
|
|
|
return $field;
|
|
}
|
|
|
|
/**
|
|
* This function will add one new key to the table with all
|
|
* its attributes defined
|
|
*
|
|
* @param string $name name of the key
|
|
* @param int $type XMLDB_KEY_PRIMARY, XMLDB_KEY_UNIQUE, XMLDB_KEY_FOREIGN
|
|
* @param array $fields an array of fieldnames to build the key over
|
|
* @param string $reftable name of the table the FK points to or null
|
|
* @param array $reffields an array of fieldnames in the FK table or null
|
|
*/
|
|
public function add_key($name, $type, $fields, $reftable=null, $reffields=null) {
|
|
$key = new xmldb_key($name, $type, $fields, $reftable, $reffields);
|
|
$this->addKey($key);
|
|
}
|
|
|
|
/**
|
|
* This function will add one new index to the table with all
|
|
* its attributes defined
|
|
*
|
|
* @param string $name name of the index
|
|
* @param int $type XMLDB_INDEX_UNIQUE, XMLDB_INDEX_NOTUNIQUE
|
|
* @param array $fields an array of fieldnames to build the index over
|
|
* @param array $hints optional index type hints
|
|
*/
|
|
public function add_index($name, $type, $fields, $hints = array()) {
|
|
$index = new xmldb_index($name, $type, $fields, $hints);
|
|
$this->addIndex($index);
|
|
}
|
|
|
|
/**
|
|
* This function will return all the errors found in one table
|
|
* looking recursively inside each field/key/index. Returns
|
|
* an array of errors or false
|
|
*/
|
|
public function getAllErrors() {
|
|
|
|
$errors = array();
|
|
// First the table itself
|
|
if ($this->getError()) {
|
|
$errors[] = $this->getError();
|
|
}
|
|
// Delegate to fields
|
|
if ($fields = $this->getFields()) {
|
|
foreach ($fields as $field) {
|
|
if ($field->getError()) {
|
|
$errors[] = $field->getError();
|
|
}
|
|
}
|
|
}
|
|
// Delegate to keys
|
|
if ($keys = $this->getKeys()) {
|
|
foreach ($keys as $key) {
|
|
if ($key->getError()) {
|
|
$errors[] = $key->getError();
|
|
}
|
|
}
|
|
}
|
|
// Delegate to indexes
|
|
if ($indexes = $this->getIndexes()) {
|
|
foreach ($indexes as $index) {
|
|
if ($index->getError()) {
|
|
$errors[] = $index->getError();
|
|
}
|
|
}
|
|
}
|
|
// Return decision
|
|
if (count($errors)) {
|
|
return $errors;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|