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authorsvncommit <devs@roundcube.net>2005-10-27 13:40:37 +0000
committersvncommit <devs@roundcube.net>2005-10-27 13:40:37 +0000
commitc9462d0c1e2493a7399b1dbd21e23b215e97f808 (patch)
treeb31f3af65a271ae651e76d1230737fbd930c27aa /program/lib/MDB2/Driver/Reverse/pgsql.php
parent4518342eca8d40f1c25ff877e00379c1e878035f (diff)
added all mdb2 drivers
Diffstat (limited to 'program/lib/MDB2/Driver/Reverse/pgsql.php')
-rwxr-xr-xprogram/lib/MDB2/Driver/Reverse/pgsql.php356
1 files changed, 356 insertions, 0 deletions
diff --git a/program/lib/MDB2/Driver/Reverse/pgsql.php b/program/lib/MDB2/Driver/Reverse/pgsql.php
new file mode 100755
index 000000000..28629eed0
--- /dev/null
+++ b/program/lib/MDB2/Driver/Reverse/pgsql.php
@@ -0,0 +1,356 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
+// | Stig. S. Bakken, Lukas Smith |
+// | All rights reserved. |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
+// | API as well as database abstraction for PHP applications. |
+// | This LICENSE is in the BSD license style. |
+// | |
+// | Redistribution and use in source and binary forms, with or without |
+// | modification, are permitted provided that the following conditions |
+// | are met: |
+// | |
+// | Redistributions of source code must retain the above copyright |
+// | notice, this list of conditions and the following disclaimer. |
+// | |
+// | Redistributions in binary form must reproduce the above copyright |
+// | notice, this list of conditions and the following disclaimer in the |
+// | documentation and/or other materials provided with the distribution. |
+// | |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission. |
+// | |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
+// | POSSIBILITY OF SUCH DAMAGE. |
+// +----------------------------------------------------------------------+
+// | Author: Paul Cooper <pgc@ucecom.com> |
+// +----------------------------------------------------------------------+
+//
+// $Id$
+
+require_once 'MDB2/Driver/Reverse/Common.php';
+
+/**
+ * MDB2 PostGreSQL driver for the schema reverse engineering module
+ *
+ * @package MDB2
+ * @category Database
+ * @author Paul Cooper <pgc@ucecom.com>
+ */
+class MDB2_Driver_Reverse_pgsql extends MDB2_Driver_Reverse_Common
+{
+ // {{{ getTableFieldDefinition()
+
+ /**
+ * get the stucture of a field into an array
+ *
+ * @param string $table name of table that should be used in method
+ * @param string $field_name name of field that should be used in method
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function getTableFieldDefinition($table, $field_name)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $result = $db->loadModule('Datatype');
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+
+ $column = $db->queryRow("SELECT
+ attnum,attname,typname,attlen,attnotnull,
+ atttypmod,usename,usesysid,pg_class.oid,relpages,
+ reltuples,relhaspkey,relhasrules,relacl,adsrc
+ FROM pg_class,pg_user,pg_type,
+ pg_attribute left outer join pg_attrdef on
+ pg_attribute.attrelid=pg_attrdef.adrelid
+ WHERE (pg_class.relname='$table')
+ and (pg_class.oid=pg_attribute.attrelid)
+ and (pg_class.relowner=pg_user.usesysid)
+ and (pg_attribute.atttypid=pg_type.oid)
+ and attnum > 0
+ and attname = '$field_name'
+ ORDER BY attnum
+ ", null, MDB2_FETCHMODE_ASSOC);
+ if (PEAR::isError($column)) {
+ return $column;
+ }
+
+ list($types, $length) = $db->datatype->mapNativeDatatype($column);
+ $notnull = false;
+ if (array_key_exists('attnotnull', $column) && $column['attnotnull'] == 't') {
+ $notnull = true;
+ }
+ $default = false;
+ // todo .. check how default look like
+ if (!preg_match("/nextval\('([^']+)'/", $column['adsrc'])
+ && strlen($column['adsrc']) > 2
+ ) {
+ $default = substr($column['adsrc'], 1, -1);
+ if (is_null($default) && $notnull) {
+ $default = '';
+ }
+ }
+ $autoincrement = false;
+ if (preg_match("/nextval\('([^']+)'/", $column['adsrc'], $nextvals)) {
+ $autoincrement = true;
+ }
+ $definition = array();
+ foreach ($types as $key => $type) {
+ $definition[$key] = array(
+ 'type' => $type,
+ 'notnull' => $notnull,
+ );
+ if ($length > 0) {
+ $definition[$key]['length'] = $length;
+ }
+ if ($default !== false) {
+ $definition[$key]['default'] = $default;
+ }
+ if ($autoincrement !== false) {
+ $definition[$key]['autoincrement'] = $autoincrement;
+ }
+ }
+ return $definition;
+ }
+
+
+ // }}}
+ // {{{ getTableIndexDefinition()
+ /**
+ * get the stucture of an index into an array
+ *
+ * @param string $table name of table that should be used in method
+ * @param string $index_name name of index that should be used in method
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function getTableIndexDefinition($table, $index_name)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = "SELECT * FROM pg_index, pg_class
+ WHERE (pg_class.relname='$index_name') AND (pg_class.oid=pg_index.indexrelid)";
+ $row = $db->queryRow($query, null, MDB2_FETCHMODE_ASSOC);
+ if (PEAR::isError($row)) {
+ return $row;
+ }
+ if ($row['relname'] != $index_name) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ 'getTableIndexDefinition: it was not specified an existing table index');
+ }
+
+ $db->loadModule('Manager');
+ $columns = $db->manager->listTableFields($table);
+
+ $definition = array();
+ if ($row['indisunique'] == 't') {
+ $definition['unique'] = true;
+ }
+
+ $index_column_numbers = explode(' ', $row['indkey']);
+
+ foreach ($index_column_numbers as $number) {
+ $definition['fields'][$columns[($number - 1)]] = array('sorting' => 'ascending');
+ }
+ return $definition;
+ }
+
+ // }}}
+ // {{{ tableInfo()
+
+ /**
+ * Returns information about a table or a result set
+ *
+ * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+ * is a table name.
+ *
+ * @param object|string $result MDB2_result object from a query or a
+ * string containing the name of a table.
+ * While this also accepts a query result
+ * resource identifier, this behavior is
+ * deprecated.
+ * @param int $mode a valid tableInfo mode
+ *
+ * @return array an associative array with the information requested.
+ * A MDB2_Error object on failure.
+ *
+ * @see MDB2_Driver_Common::tableInfo()
+ */
+ function tableInfo($result, $mode = null)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ if (is_string($result)) {
+ /*
+ * Probably received a table name.
+ * Create a result resource identifier.
+ */
+ $id = $db->_doQuery("SELECT * FROM $result LIMIT 0");
+ if (PEAR::isError($id)) {
+ return $id;
+ }
+ $got_string = true;
+ } elseif (MDB2::isResultCommon($result)) {
+ /*
+ * Probably received a result object.
+ * Extract the result resource identifier.
+ */
+ $id = $result->getResource();
+ $got_string = false;
+ } else {
+ /*
+ * Probably received a result resource identifier.
+ * Copy it.
+ * Deprecated. Here for compatibility only.
+ */
+ $id = $result;
+ $got_string = false;
+ }
+
+ if (!is_resource($id)) {
+ return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA);
+ }
+
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+ if ($db->options['field_case'] == CASE_LOWER) {
+ $case_func = 'strtolower';
+ } else {
+ $case_func = 'strtoupper';
+ }
+ } else {
+ $case_func = 'strval';
+ }
+
+ $count = @pg_num_fields($id);
+ $res = array();
+
+ if ($mode) {
+ $res['num_fields'] = $count;
+ }
+
+ for ($i = 0; $i < $count; $i++) {
+ $res[$i] = array(
+ 'table' => $got_string ? $case_func($result) : '',
+ 'name' => $case_func(@pg_field_name($id, $i)),
+ 'type' => @pg_field_type($id, $i),
+ 'len' => @pg_field_size($id, $i),
+ 'flags' => $got_string
+ ? $this->_pgFieldFlags($id, $i, $result)
+ : '',
+ );
+ if ($mode & MDB2_TABLEINFO_ORDER) {
+ $res['order'][$res[$i]['name']] = $i;
+ }
+ if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
+ $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+ }
+ }
+
+ // free the result only if we were called on a table
+ if ($got_string) {
+ @pg_free_result($id);
+ }
+ return $res;
+ }
+
+ // }}}
+ // {{{ _pgFieldFlags()
+
+ /**
+ * Get a column's flags
+ *
+ * Supports "not_null", "default_value", "primary_key", "unique_key"
+ * and "multiple_key". The default value is passed through
+ * rawurlencode() in case there are spaces in it.
+ *
+ * @param int $resource the PostgreSQL result identifier
+ * @param int $num_field the field number
+ *
+ * @return string the flags
+ *
+ * @access protected
+ */
+ function _pgFieldFlags($resource, $num_field, $table_name)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $field_name = @pg_field_name($resource, $num_field);
+
+ $result = @pg_query($db->connection, "SELECT f.attnotnull, f.atthasdef
+ FROM pg_attribute f, pg_class tab, pg_type typ
+ WHERE tab.relname = typ.typname
+ AND typ.typrelid = f.attrelid
+ AND f.attname = '$field_name'
+ AND tab.relname = '$table_name'");
+ if (@pg_num_rows($result) > 0) {
+ $row = @pg_fetch_row($result, 0);
+ $flags = ($row[0] == 't') ? 'not_null ' : '';
+
+ if ($row[1] == 't') {
+ $result = @pg_query($db->connection, "SELECT a.adsrc
+ FROM pg_attribute f, pg_class tab, pg_type typ, pg_attrdef a
+ WHERE tab.relname = typ.typname AND typ.typrelid = f.attrelid
+ AND f.attrelid = a.adrelid AND f.attname = '$field_name'
+ AND tab.relname = '$table_name' AND f.attnum = a.adnum");
+ $row = @pg_fetch_row($result, 0);
+ $num = preg_replace("/'(.*)'::\w+/", "\\1", $row[0]);
+ $flags.= 'default_' . rawurlencode($num) . ' ';
+ }
+ } else {
+ $flags = '';
+ }
+ $result = @pg_query($db->connection, "SELECT i.indisunique, i.indisprimary, i.indkey
+ FROM pg_attribute f, pg_class tab, pg_type typ, pg_index i
+ WHERE tab.relname = typ.typname
+ AND typ.typrelid = f.attrelid
+ AND f.attrelid = i.indrelid
+ AND f.attname = '$field_name'
+ AND tab.relname = '$table_name'");
+ $count = @pg_num_rows($result);
+
+ for ($i = 0; $i < $count ; $i++) {
+ $row = @pg_fetch_row($result, $i);
+ $keys = explode(' ', $row[2]);
+
+ if (in_array($num_field + 1, $keys)) {
+ $flags.= ($row[0] == 't' && $row[1] == 'f') ? 'unique_key ' : '';
+ $flags.= ($row[1] == 't') ? 'primary_key ' : '';
+ if (count($keys) > 1)
+ $flags.= 'multiple_key ';
+ }
+ }
+
+ return trim($flags);
+ }
+}
+?> \ No newline at end of file