mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-10-06 02:02:24 +02:00
116 lines
2.3 KiB
PHP
116 lines
2.3 KiB
PHP
<?php
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class phpgw_schema_proc
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{
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var $m_oTranslator;
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function phpgw_schema_proc($dbms)
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{
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include("./inc/phpgw_schema_proc_" . $dbms . ".inc.php");
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eval("\$this->m_oTranslator = new phpgw_schema_proc_$dbms;");
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}
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function GenerateScripts($aTables, $bOutputHTML = false)
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{
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if (!is_array($aTables))
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return false;
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reset($aTables);
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$sAllTableSQL = "";
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while (list($sTableName, $aTableDef) = each($aTables))
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{
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if ($this->_GetTableSQL($aTableDef, $sTableSQL))
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{
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$sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n)"
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. $this->m_oTranslator->m_sStatementTerminator;
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$sAllTableSQL .= $sTableSQL . "\n\n";
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}
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else
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return false;
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}
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if ($bOutputHTML)
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print("<PRE>$sAllTableSQL</PRE><BR><BR>");
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return true;
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}
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function _GetTableSQL($aTableDef, &$sTableSQL)
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{
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if (!is_array($aTableDef))
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return false;
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$sTableSQL = "";
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reset($aTableDef);
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while (list($sFieldName, $aFieldAttr) = each($aTableDef))
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{
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$sFieldSQL = "";
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if ($this->_GetFieldSQL($aFieldAttr, $sFieldSQL))
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{
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if ($sTableSQL != "")
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$sTableSQL .= ",\n";
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$sTableSQL .= "$sFieldName $sFieldSQL";
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}
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else
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return false;
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}
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return true;
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}
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// Get field DDL
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function _GetFieldSQL($aField, &$sFieldSQL)
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{
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if (!is_array($aField))
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return false;
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$sType = "";
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$iPrecision = 0;
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$iScale = 0;
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$sDefault = "";
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$bNullable = false;
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reset($aField);
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while (list($sAttr, $vAttrVal) = each($aField))
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{
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switch ($sAttr)
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{
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case "type":
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$sType = $vAttrVal;
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break;
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case "precision":
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$iPrecision = (int)$vAttrVal;
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break;
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case "scale":
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$iScale = (int)$vAttrVal;
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break;
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case "default":
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$sDefault = $vAttrVal;
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break;
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case "nullable":
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$bNullable = $vAttrVal;
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break;
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}
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}
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// Translate the type for the DBMS
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if ($this->m_oTranslator->TranslateType($sType, $iPrecision, $iScale, $sFieldSQL))
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{
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if ($bNullable == false)
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$sFieldSQL .= " NOT NULL";
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if ($sDefault != "")
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{
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// Get default DDL - useful for differences in date defaults (eg, now() vs. getdate())
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$sTranslatedDefault = $this->m_oTranslator->TranslateDefault($sDefault);
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$sFieldSQL .= " DEFAULT '$sTranslatedDefault'";
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}
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return true;
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}
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return false;
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}
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}
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?>
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