[2] | 1 | <?php |
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| 2 | /**************************************************************************\ |
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| 3 | * eGroupWare - Setup * |
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| 4 | * http://www.egroupware.org * |
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| 5 | * -------------------------------------------- * |
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| 6 | * This file written by Michael Dean<mdean@users.sourceforge.net> * |
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| 7 | * and Miles Lott<milosch@groupwhere.org> * |
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| 8 | * -------------------------------------------- * |
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| 9 | * This program is free software; you can redistribute it and/or modify it * |
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| 10 | * under the terms of the GNU General Public License as published by the * |
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| 11 | * Free Software Foundation; either version 2 of the License, or (at your * |
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| 12 | * option) any later version. * |
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| 13 | \**************************************************************************/ |
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| 14 | |
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| 15 | |
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| 16 | class schema_proc |
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| 17 | { |
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| 18 | var $m_oTranslator; |
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| 19 | var $m_oDeltaProc; |
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| 20 | var $m_odb; |
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| 21 | var $m_aTables; |
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| 22 | var $m_bDeltaOnly; |
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| 23 | |
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| 24 | function schema_proc($dbms) |
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| 25 | { |
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| 26 | $this->sType = $dbms; |
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| 27 | $this->m_oTranslator = CreateObject('phpgwapi.schema_proc_' . $dbms); |
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| 28 | $this->m_oDeltaProc = CreateObject('phpgwapi.schema_proc_array'); |
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| 29 | $this->m_aTables = array(); |
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| 30 | $this->m_bDeltaOnly = False; // Default to false here in case it's just a CreateTable script |
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| 31 | } |
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| 32 | |
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| 33 | function GenerateScripts($aTables, $bOutputHTML=False) |
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| 34 | { |
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| 35 | if (!is_array($aTables)) |
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| 36 | { |
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| 37 | return False; |
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| 38 | } |
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| 39 | $this->m_aTables = $aTables; |
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| 40 | |
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| 41 | $sAllTableSQL = ''; |
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| 42 | foreach ($this->m_aTables as $sTableName => $aTableDef) |
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| 43 | { |
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| 44 | $sSequenceSQL = ''; |
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| 45 | $append_ix = False; |
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| 46 | if($this->_GetTableSQL($sTableName, $aTableDef, $sTableSQL, $sSequenceSQL,$append_ix)) |
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| 47 | { |
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| 48 | if($append_ix) |
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| 49 | { |
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| 50 | $sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n" |
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| 51 | . $this->m_oTranslator->m_sStatementTerminator; |
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| 52 | } |
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| 53 | else |
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| 54 | { |
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| 55 | $sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n)" |
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| 56 | . $this->m_oTranslator->m_sStatementTerminator; |
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| 57 | } |
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| 58 | if($sSequenceSQL != '') |
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| 59 | { |
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| 60 | $sAllTableSQL .= $sSequenceSQL . "\n"; |
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| 61 | } |
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| 62 | $sAllTableSQL .= $sTableSQL . "\n\n"; |
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| 63 | } |
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| 64 | else |
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| 65 | { |
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| 66 | if($bOutputHTML) |
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| 67 | { |
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| 68 | print('<br>Failed generating script for <b>' . $sTableName . '</b><br>'); |
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| 69 | echo '<pre style="text-align: left;">'.$sTableName.' = '; print_r($aTableDef); echo "</pre>\n"; |
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| 70 | } |
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| 71 | |
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| 72 | return false; |
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| 73 | } |
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| 74 | } |
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| 75 | |
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| 76 | if($bOutputHTML) |
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| 77 | { |
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| 78 | print('<pre>' . $sAllTableSQL . '</pre><br><br>'); |
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| 79 | } |
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| 80 | |
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| 81 | return True; |
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| 82 | } |
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| 83 | |
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| 84 | function ExecuteScripts($aTables, $bOutputHTML=False) |
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| 85 | { |
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| 86 | if(!is_array($aTables) || !IsSet($this->m_odb)) |
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| 87 | { |
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| 88 | return False; |
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| 89 | } |
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| 90 | |
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| 91 | reset($aTables); |
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| 92 | $this->m_aTables = $aTables; |
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| 93 | |
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| 94 | while(list($sTableName, $aTableDef) = each($aTables)) |
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| 95 | { |
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| 96 | if($this->CreateTable($sTableName, $aTableDef)) |
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| 97 | { |
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| 98 | if($bOutputHTML) |
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| 99 | { |
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| 100 | echo '<br>Create Table <b>' . $sTableName . '</b>'; |
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| 101 | } |
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| 102 | } |
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| 103 | else |
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| 104 | { |
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| 105 | if($bOutputHTML) |
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| 106 | { |
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| 107 | echo '<br>Create Table Failed For <b>' . $sTableName . '</b>'; |
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| 108 | } |
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| 109 | |
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| 110 | return False; |
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| 111 | } |
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| 112 | } |
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| 113 | |
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| 114 | return True; |
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| 115 | } |
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| 116 | |
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| 117 | function DropAllTables($aTables, $bOutputHTML=False) |
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| 118 | { |
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| 119 | if(!is_array($aTables) || !isset($this->m_odb)) |
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| 120 | { |
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| 121 | return False; |
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| 122 | } |
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| 123 | |
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| 124 | $this->m_aTables = $aTables; |
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| 125 | |
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| 126 | reset($this->m_aTables); |
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| 127 | while(list($sTableName, $aTableDef) = each($this->m_aTables)) |
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| 128 | { |
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| 129 | if($this->DropTable($sTableName)) |
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| 130 | { |
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| 131 | if($bOutputHTML) |
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| 132 | { |
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| 133 | echo '<br>Drop Table <b>' . $sTableSQL . '</b>'; |
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| 134 | } |
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| 135 | } |
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| 136 | else |
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| 137 | { |
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| 138 | return False; |
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| 139 | } |
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| 140 | } |
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| 141 | |
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| 142 | return True; |
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| 143 | } |
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| 144 | |
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| 145 | function DropTable($sTableName) |
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| 146 | { |
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| 147 | $retVal = $this->m_oDeltaProc->DropTable($this, $this->m_aTables, $sTableName); |
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| 148 | if($this->m_bDeltaOnly) |
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| 149 | { |
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| 150 | return $retVal; |
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| 151 | } |
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| 152 | |
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| 153 | return $retVal && $this->m_oTranslator->DropTable($this, $this->m_aTables, $sTableName); |
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| 154 | } |
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| 155 | |
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| 156 | function DropColumn($sTableName, $aTableDef, $sColumnName, $bCopyData = true) |
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| 157 | { |
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| 158 | $retVal = $this->m_oDeltaProc->DropColumn($this, $this->m_aTables, $sTableName, $aTableDef, $sColumnName, $bCopyData); |
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| 159 | if($this->m_bDeltaOnly) |
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| 160 | { |
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| 161 | return $retVal; |
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| 162 | } |
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| 163 | |
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| 164 | return $retVal && $this->m_oTranslator->DropColumn($this, $this->m_aTables, $sTableName, $aTableDef, $sColumnName, $bCopyData); |
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| 165 | } |
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| 166 | |
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| 167 | function RenameTable($sOldTableName, $sNewTableName) |
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| 168 | { |
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| 169 | $retVal = $this->m_oDeltaProc->RenameTable($this, $this->m_aTables, $sOldTableName, $sNewTableName); |
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| 170 | if($this->m_bDeltaOnly) |
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| 171 | { |
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| 172 | return $retVal; |
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| 173 | } |
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| 174 | |
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| 175 | return $retVal && $this->m_oTranslator->RenameTable($this, $this->m_aTables, $sOldTableName, $sNewTableName); |
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| 176 | } |
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| 177 | |
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| 178 | function RenameColumn($sTableName, $sOldColumnName, $sNewColumnName, $bCopyData=True) |
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| 179 | { |
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| 180 | $retVal = $this->m_oDeltaProc->RenameColumn($this, $this->m_aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData); |
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| 181 | if($this->m_bDeltaOnly) |
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| 182 | { |
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| 183 | return $retVal; |
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| 184 | } |
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| 185 | |
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| 186 | return $retVal && $this->m_oTranslator->RenameColumn($this, $this->m_aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData); |
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| 187 | } |
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| 188 | |
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| 189 | function AlterColumn($sTableName, $sColumnName, $aColumnDef, $bCopyData=True) |
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| 190 | { |
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| 191 | $retVal = $this->m_oDeltaProc->AlterColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef, $bCopyData); |
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| 192 | if($this->m_bDeltaOnly) |
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| 193 | { |
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| 194 | return $retVal; |
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| 195 | } |
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| 196 | |
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| 197 | return $retVal && $this->m_oTranslator->AlterColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef, $bCopyData); |
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| 198 | } |
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| 199 | |
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| 200 | function AddColumn($sTableName, $sColumnName, $aColumnDef) |
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| 201 | { |
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| 202 | $retVal = $this->m_oDeltaProc->AddColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef); |
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| 203 | if($this->m_bDeltaOnly) |
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| 204 | { |
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| 205 | return $retVal; |
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| 206 | } |
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| 207 | |
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| 208 | return $retVal && $this->m_oTranslator->AddColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef); |
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| 209 | } |
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| 210 | |
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| 211 | function CreateTable($sTableName, $aTableDef) |
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| 212 | { |
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| 213 | $retVal = $this->m_oDeltaProc->CreateTable($this, $this->m_aTables, $sTableName, $aTableDef); |
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| 214 | if($this->m_bDeltaOnly) |
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| 215 | { |
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| 216 | return $retVal; |
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| 217 | } |
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| 218 | |
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| 219 | return $retVal && $this->m_oTranslator->CreateTable($this, $this->m_aTables, $sTableName, $aTableDef); |
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| 220 | } |
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| 221 | |
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| 222 | function UpdateSequence($sTableName,$sColumnName) |
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| 223 | { |
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| 224 | if (method_exists($this->m_oTranslator,'UpdateSequence')) |
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| 225 | { |
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| 226 | return $this->m_oTranslator->UpdateSequence($this->m_odb,$sTableName,$sColumnName); |
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| 227 | } |
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| 228 | return True; |
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| 229 | } |
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| 230 | |
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| 231 | |
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| 232 | // This function manually re-created the table incl. primary key and all other indices |
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| 233 | // It is meant to use if the primary key, existing indices or column-order changes or |
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| 234 | // columns are not longer used or new columns need to be created (with there default value or NULL) |
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| 235 | // Beside the default-value in the schema, one can give extra defaults via $aDefaults to eg. use an |
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| 236 | // other colum or function to set the value of a new or changed column |
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| 237 | function RefreshTable($sTableName, $aTableDef, $aDefaults=False) |
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| 238 | { |
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| 239 | if($GLOBALS['DEBUG']) { echo "<p>schema_proc::RefreshTable('$sTableName',"._debug_array($aTableDef,False).")<p>m_aTables[$sTableName]="._debug_array($this->m_aTables[$sTableName],False)."\n"; } |
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| 240 | $old_fd = $this->m_aTables[$sTableName]['fd']; |
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| 241 | |
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| 242 | $Ok = $this->m_oDeltaProc->RefreshTable($this, $this->m_aTables, $sTableName, $aTableDef); |
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| 243 | if(!$Ok || $this->m_bDeltaOnly) |
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| 244 | { |
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| 245 | return $Ok; // nothing else to do |
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| 246 | } |
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| 247 | $tmp_name = 'tmp_'.$sTableName; |
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| 248 | $this->m_odb->transaction_begin(); |
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| 249 | |
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| 250 | $select = array(); |
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| 251 | foreach($aTableDef['fd'] as $name => $data) |
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| 252 | { |
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| 253 | if ($aDefaults && isset($aDefaults[$name])) // use given default |
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| 254 | { |
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| 255 | $value = $aDefaults[$name]; |
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| 256 | } |
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| 257 | elseif (isset($old_fd[$name])) // existing column, use its value => column-name in query |
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| 258 | { |
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| 259 | $value = $name; |
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| 260 | } |
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| 261 | else // new column => use default value or NULL |
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| 262 | { |
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| 263 | if (!isset($data['default']) && (!isset($data['nullable']) || $data['nullable'])) |
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| 264 | { |
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| 265 | $value = 'NULL'; |
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| 266 | } |
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| 267 | else |
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| 268 | { |
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| 269 | $value = $this->m_odb->quote(isset($data['default']) ? $data['default'] : '',$data['type']); |
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| 270 | // fix for postgres error "no '<' operator for type 'unknown'" |
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| 271 | if ($this->sType == 'pgsql') |
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| 272 | { |
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| 273 | $type_translated = $this->m_oTranslator->TranslateType($data['type']); |
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| 274 | $value = "CAST($value AS $type_translated)"; |
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| 275 | } |
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| 276 | } |
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| 277 | } |
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| 278 | $select[] = $value; |
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| 279 | } |
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| 280 | $select = implode(',',$select); |
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| 281 | |
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| 282 | $Ok = $this->RenameTable($sTableName,$tmp_name) && |
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| 283 | $this->CreateTable($sTableName,$aTableDef) && |
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| 284 | $this->m_odb->query("INSERT INTO $sTableName SELECT DISTINCT $select FROM $tmp_name",__LINE__,__FILE__); |
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| 285 | |
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| 286 | if (!$Ok) |
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| 287 | { |
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| 288 | $this->m_odb->transaction_abort(); |
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| 289 | return False; |
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| 290 | } |
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| 291 | // do we need to update the new sequences value ? |
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| 292 | if (count($aTableDef['pk']) == 1 && $aTableDef['fd'][$aTableDef['pk'][0]]['type'] == 'auto') |
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| 293 | { |
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| 294 | $this->UpdateSequence($sTableName,$aTableDef['pk'][0]); |
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| 295 | } |
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| 296 | $this->DropTable($tmp_name); |
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| 297 | $this->m_odb->transaction_commit(); |
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| 298 | |
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| 299 | return True; |
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| 300 | } |
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| 301 | |
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| 302 | function f($value) |
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| 303 | { |
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| 304 | if($this->m_bDeltaOnly) |
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| 305 | { |
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| 306 | // Don't care, since we are processing deltas only |
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| 307 | return False; |
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| 308 | } |
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| 309 | |
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| 310 | return $this->m_odb->f($value); |
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| 311 | } |
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| 312 | |
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| 313 | function num_rows() |
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| 314 | { |
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| 315 | if($this->m_bDeltaOnly) |
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| 316 | { |
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| 317 | // If not False, we will cause while loops calling us to hang |
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| 318 | return False; |
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| 319 | } |
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| 320 | |
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| 321 | return $this->m_odb->num_rows(); |
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| 322 | } |
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| 323 | |
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| 324 | function next_record() |
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| 325 | { |
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| 326 | if($this->m_bDeltaOnly) |
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| 327 | { |
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| 328 | // If not False, we will cause while loops calling us to hang |
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| 329 | return False; |
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| 330 | } |
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| 331 | |
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| 332 | return $this->m_odb->next_record(); |
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| 333 | } |
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| 334 | |
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| 335 | function query($sQuery, $line='', $file='') |
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| 336 | { |
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| 337 | if($this->m_bDeltaOnly) |
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| 338 | { |
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| 339 | // Don't run this query, since we are processing deltas only |
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| 340 | return True; |
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| 341 | } |
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| 342 | |
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| 343 | return $this->m_odb->query($sQuery, $line, $file); |
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| 344 | } |
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| 345 | |
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| 346 | function _GetTableSQL($sTableName, $aTableDef, &$sTableSQL, &$sSequenceSQL,&$append_ix) |
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| 347 | { |
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| 348 | if(!is_array($aTableDef)) |
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| 349 | { |
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| 350 | return False; |
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| 351 | } |
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| 352 | |
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| 353 | $sTableSQL = ''; |
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| 354 | reset($aTableDef['fd']); |
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| 355 | while(list($sFieldName, $aFieldAttr) = each($aTableDef['fd'])) |
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| 356 | { |
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| 357 | $sFieldSQL = ''; |
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| 358 | if($this->_GetFieldSQL($aFieldAttr, $sFieldSQL)) |
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| 359 | { |
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| 360 | if($sTableSQL != '') |
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| 361 | { |
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| 362 | $sTableSQL .= ",\n"; |
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| 363 | } |
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| 364 | |
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| 365 | $sTableSQL .= "$sFieldName $sFieldSQL"; |
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| 366 | |
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| 367 | if($aFieldAttr['type'] == 'auto') |
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| 368 | { |
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| 369 | $this->m_oTranslator->GetSequenceSQL($sTableName, $sSequenceSQL); |
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| 370 | if($sSequenceSQL != '') |
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| 371 | { |
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| 372 | $sTableSQL .= sprintf(" DEFAULT nextval('seq_%s')", $sTableName); |
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| 373 | } |
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| 374 | } |
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| 375 | } |
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| 376 | else |
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| 377 | { |
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| 378 | if($GLOBALS['DEBUG']) { echo 'GetFieldSQL failed for ' . $sFieldName; } |
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| 379 | return False; |
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| 380 | } |
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| 381 | } |
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| 382 | |
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| 383 | $sUCSQL = ''; |
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| 384 | $sPKSQL = ''; |
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| 385 | $sIXSQL = ''; |
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| 386 | |
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| 387 | if(count($aTableDef['pk']) > 0) |
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| 388 | { |
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| 389 | if(!$this->_GetPK($aTableDef['pk'], $sPKSQL)) |
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| 390 | { |
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| 391 | if($bOutputHTML) |
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| 392 | { |
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| 393 | print('<br>Failed getting primary key<br>'); |
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| 394 | } |
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| 395 | |
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| 396 | return False; |
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| 397 | } |
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| 398 | } |
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| 399 | |
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| 400 | if(count($aTableDef['uc']) > 0) |
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| 401 | { |
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| 402 | if(!$this->_GetUC($aTableDef['uc'], $sUCSQL)) |
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| 403 | { |
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| 404 | if($bOutputHTML) |
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| 405 | { |
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| 406 | print('<br>Failed getting unique constraint<br>'); |
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| 407 | } |
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| 408 | |
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| 409 | return False; |
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| 410 | } |
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| 411 | } |
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| 412 | |
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| 413 | if(count($aTableDef['ix']) > 0) |
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| 414 | { |
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| 415 | $append_ix = False; |
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| 416 | if(!$this->_GetIX($aTableDef['ix'], $sIXSQL,$append_ix,$sTableName)) |
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| 417 | { |
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| 418 | if($bOutputHTML) |
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| 419 | { |
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| 420 | print('<br>Failed getting index<br>'); |
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| 421 | } |
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| 422 | |
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| 423 | return False; |
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| 424 | } |
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| 425 | // print('<br>HELLO!: ' . $sIXSQL); |
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| 426 | } |
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| 427 | |
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| 428 | if($sPKSQL != '') |
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| 429 | { |
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| 430 | $sTableSQL .= ",\n" . $sPKSQL; |
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| 431 | } |
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| 432 | |
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| 433 | if($sUCSQL != '') |
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| 434 | { |
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| 435 | $sTableSQL .= ",\n" . $sUCSQL; |
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| 436 | } |
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| 437 | |
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| 438 | if($sIXSQL != '') |
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| 439 | { |
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| 440 | if($append_ix) |
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| 441 | { |
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| 442 | $sTableSQL .= ");\n" . $sIXSQL; |
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| 443 | //pg: CREATE INDEX test1_id_index ON test1 (id); |
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| 444 | } |
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| 445 | else |
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| 446 | { |
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| 447 | $sTableSQL .= ",\n" . $sIXSQL; |
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| 448 | } |
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| 449 | } |
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| 450 | |
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| 451 | return True; |
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| 452 | } |
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| 453 | |
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| 454 | // Get field DDL |
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| 455 | function _GetFieldSQL($aField, &$sFieldSQL) |
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| 456 | { |
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| 457 | if($GLOBALS['DEBUG']) { echo'<br>_GetFieldSQL(): Incoming ARRAY: '; var_dump($aField); } |
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| 458 | if(!is_array($aField)) |
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| 459 | { |
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| 460 | return false; |
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| 461 | } |
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| 462 | |
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| 463 | $sType = ''; |
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| 464 | $iPrecision = 0; |
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| 465 | $iScale = 0; |
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| 466 | $bNullable = true; |
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| 467 | |
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| 468 | reset($aField); |
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| 469 | while(list($sAttr, $vAttrVal) = each($aField)) |
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| 470 | { |
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| 471 | switch ($sAttr) |
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| 472 | { |
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| 473 | case 'type': |
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| 474 | $sType = $vAttrVal; |
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| 475 | break; |
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| 476 | case 'precision': |
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| 477 | $iPrecision = (int)$vAttrVal; |
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| 478 | break; |
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| 479 | case 'scale': |
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| 480 | $iScale = (int)$vAttrVal; |
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| 481 | break; |
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| 482 | case 'nullable': |
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| 483 | $bNullable = $vAttrVal; |
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| 484 | break; |
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| 485 | default: |
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| 486 | break; |
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| 487 | } |
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| 488 | } |
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| 489 | |
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| 490 | // Translate the type for the DBMS |
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| 491 | if($sFieldSQL = $this->m_oTranslator->TranslateType($sType, $iPrecision, $iScale)) |
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| 492 | { |
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| 493 | if(strpos(strtolower($sFieldSQL),'null')===false) |
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| 494 | { |
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| 495 | if(!$bNullable) |
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| 496 | { |
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| 497 | $sFieldSQL .= ' NOT NULL'; |
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| 498 | } |
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| 499 | elseif ($this->m_oTranslator->b_needExplicitNULL) |
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| 500 | { |
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| 501 | $sFieldSQL .= ' NULL'; |
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| 502 | } |
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| 503 | } |
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| 504 | if(isset($aField['default'])) |
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| 505 | { |
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| 506 | if($GLOBALS['DEBUG']) { echo'<br>_GetFieldSQL(): Calling TranslateDefault for "' . $aField['default'] . '"'; } |
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| 507 | // Get default DDL - useful for differences in date defaults (eg, now() vs. getdate()) |
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| 508 | |
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| 509 | $sFieldSQL .= ' DEFAULT ' . (is_numeric($aField['default']) ? $aField['default'] : |
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| 510 | $this->m_oTranslator->TranslateDefault($aField['default'])); |
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| 511 | } |
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| 512 | if($GLOBALS['DEBUG']) { echo'<br>_GetFieldSQL(): Outgoing SQL: ' . $sFieldSQL; } |
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| 513 | return true; |
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| 514 | } |
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| 515 | |
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| 516 | if($GLOBALS['DEBUG']) { echo '<br>Failed to translate field: type[' . $sType . '] precision[' . $iPrecision . '] scale[' . $iScale . ']<br>'; } |
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| 517 | |
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| 518 | return False; |
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| 519 | } |
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| 520 | |
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| 521 | function _GetPK($aFields, &$sPKSQL) |
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| 522 | { |
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| 523 | $sPKSQL = ''; |
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| 524 | if(count($aFields) < 1) |
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| 525 | { |
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| 526 | return True; |
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| 527 | } |
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| 528 | |
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| 529 | $sPKSQL = $this->m_oTranslator->GetPKSQL(implode(',',$aFields)); |
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| 530 | |
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| 531 | return True; |
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| 532 | } |
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| 533 | |
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| 534 | function _GetUC($aFields, &$sUCSQL) |
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| 535 | { |
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| 536 | $sUCSQL = ''; |
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| 537 | if(count($aFields) < 1) |
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| 538 | { |
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| 539 | return True; |
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| 540 | } |
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| 541 | foreach($aFields as $mFields) |
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| 542 | { |
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| 543 | $aUCSQL[] = $this->m_oTranslator->GetUCSQL( |
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| 544 | is_array($mFields) ? implode(',',$mFields) : $mFields); |
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| 545 | } |
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| 546 | $sUCSQL = implode(",\n",$aUCSQL); |
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| 547 | |
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| 548 | return True; |
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| 549 | } |
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| 550 | |
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| 551 | function _GetIX($aFields, &$sIXSQL, &$append, $sTableName) |
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| 552 | { |
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| 553 | $sUCSQL = ''; |
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| 554 | if(count($aFields) < 1) |
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| 555 | { |
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| 556 | return True; |
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| 557 | } |
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| 558 | $aIXSQL = array(); |
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| 559 | foreach($aFields as $mFields) |
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| 560 | { |
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| 561 | $options = ''; |
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| 562 | if (is_array($mFields)) |
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| 563 | { |
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| 564 | if (isset($mFields['options'])) // array sets additional options |
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| 565 | { |
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| 566 | $options = @$mFields['options'][$this->sType]; // db-specific options, eg. index-type |
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| 567 | unset($mFields['options']); |
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| 568 | } |
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| 569 | if ($options === false) |
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| 570 | { |
---|
| 571 | continue; // dont create index for that db, eg. cant index text |
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| 572 | } |
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| 573 | $mFields = implode(',',$mFields); |
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| 574 | } |
---|
| 575 | $aIXSQL[] = $this->m_oTranslator->GetIXSQL($mFields,$append,$options,$sTableName); |
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| 576 | } |
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| 577 | if($append) |
---|
| 578 | { |
---|
| 579 | $sIXSQL = implode("\n",$aIXSQL); |
---|
| 580 | } |
---|
| 581 | else |
---|
| 582 | { |
---|
| 583 | $sIXSQL = implode(",\n",$aIXSQL); |
---|
| 584 | } |
---|
| 585 | |
---|
| 586 | return True; |
---|
| 587 | } |
---|
| 588 | } |
---|
| 589 | ?> |
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