forked from extern/egroupware
147 lines
3.8 KiB
PHP
147 lines
3.8 KiB
PHP
<?php
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/**
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V3.94 13 Oct 2003 (c) 2000-2003 John Lim (jlim@natsoft.com.my). All rights reserved.
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Released under both BSD license and Lesser GPL library license.
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Whenever there is any discrepancy between the two licenses,
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the BSD license will take precedence.
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Set tabs to 4 for best viewing.
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*/
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class ADODB2_mysql extends ADODB_DataDict {
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var $databaseType = 'mysql';
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var $alterCol = ' MODIFY COLUMN';
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function MetaType($t,$len=-1,$fieldobj=false)
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{
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if (is_object($t)) {
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$fieldobj = $t;
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$t = $fieldobj->type;
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$len = $fieldobj->max_length;
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}
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$len = -1; // mysql max_length is not accurate
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switch (strtoupper($t)) {
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case 'STRING':
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case 'CHAR':
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case 'VARCHAR':
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case 'TINYBLOB':
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case 'TINYTEXT':
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case 'ENUM':
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case 'SET':
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if ($len <= $this->blobSize) return 'C';
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case 'TEXT':
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case 'LONGTEXT':
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case 'MEDIUMTEXT':
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return 'X';
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// php_mysql extension always returns 'blob' even if 'text'
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// so we have to check whether binary...
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case 'IMAGE':
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case 'LONGBLOB':
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case 'BLOB':
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case 'MEDIUMBLOB':
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return !empty($fieldobj->binary) ? 'B' : 'X';
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case 'YEAR':
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case 'DATE': return 'D';
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case 'TIME':
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case 'DATETIME':
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case 'TIMESTAMP': return 'T';
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case 'FLOAT':
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case 'DOUBLE':
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return 'F';
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case 'INT':
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case 'INTEGER': return (!empty($fieldobj->primary_key)) ? 'R' : 'I';
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case 'TINYINT': return (!empty($fieldobj->primary_key)) ? 'R' : 'I1';
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case 'SMALLINT': return (!empty($fieldobj->primary_key)) ? 'R' : 'I2';
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case 'MEDIUMINT': return (!empty($fieldobj->primary_key)) ? 'R' : 'I4';
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case 'BIGINT': return (!empty($fieldobj->primary_key)) ? 'R' : 'I8';
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default: return 'N';
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}
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}
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function ActualType($meta)
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{
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switch(strtoupper($meta)) {
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case 'C': return 'VARCHAR';
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case 'XL':
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case 'X': return 'LONGTEXT';
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case 'C2': return 'VARCHAR';
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case 'X2': return 'LONGTEXT';
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case 'B': return 'LONGBLOB';
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case 'D': return 'DATE';
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case 'T': return 'DATETIME';
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case 'L': return 'TINYINT';
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case 'I': return 'INTEGER';
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case 'I1': return 'TINYINT';
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case 'I2': return 'SMALLINT';
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case 'I4': return 'MEDIUMINT';
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case 'I8': return 'BIGINT';
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case 'F': return 'DOUBLE';
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case 'N': return 'NUMERIC';
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default:
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return $meta;
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}
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}
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// return string must begin with space
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function _CreateSuffix($fname,$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
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{
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$suffix = '';
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if ($funsigned) $suffix .= ' UNSIGNED';
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if ($fnotnull) $suffix .= ' NOT NULL';
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if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
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if ($fautoinc) $suffix .= ' AUTO_INCREMENT';
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if ($fconstraint) $suffix .= ' '.$fconstraint;
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return $suffix;
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}
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/*
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CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)]
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[table_options] [select_statement]
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create_definition:
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col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT]
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[PRIMARY KEY] [reference_definition]
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or PRIMARY KEY (index_col_name,...)
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or KEY [index_name] (index_col_name,...)
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or INDEX [index_name] (index_col_name,...)
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or UNIQUE [INDEX] [index_name] (index_col_name,...)
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or FULLTEXT [INDEX] [index_name] (index_col_name,...)
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or [CONSTRAINT symbol] FOREIGN KEY [index_name] (index_col_name,...)
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[reference_definition]
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or CHECK (expr)
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*/
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/*
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CREATE [UNIQUE|FULLTEXT] INDEX index_name
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ON tbl_name (col_name[(length)],... )
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*/
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function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
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{
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//if (isset($idxoptions['REPLACE'])) $sql[] = "DROP INDEX IF EXISTS $idxname";
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if (isset($idxoptions['FULLTEXT'])) $unique = ' FULLTEXT';
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else if (isset($idxoptions['UNIQUE'])) $unique = ' UNIQUE';
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else $unique = '';
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if (is_array($flds)) $flds = implode(', ',$flds);
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$s = "CREATE$unique INDEX $idxname ON $tabname ($flds)";
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if (isset($idxoptions[$this->upperName])) $s .= $idxoptions[$this->upperName];
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$sql[] = $s;
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return $sql;
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}
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}
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?>
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