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datadict-mysql.inc.php
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1 <?php
2 
13 // security - hide paths
14 if (!defined('ADODB_DIR')) die();
15 
16 class ADODB2_mysql extends ADODB_DataDict {
17  var $databaseType = 'mysql';
18  var $alterCol = ' MODIFY COLUMN';
19  var $alterTableAddIndex = true;
20  var $dropTable = 'DROP TABLE IF EXISTS %s'; // requires mysql 3.22 or later
21 
22  var $dropIndex = 'DROP INDEX %s ON %s';
23  var $renameColumn = 'ALTER TABLE %s CHANGE COLUMN %s %s %s'; // needs column-definition!
24 
25  function MetaType($t,$len=-1,$fieldobj=false)
26  {
27  if (is_object($t)) {
28  $fieldobj = $t;
29  $t = $fieldobj->type;
30  $len = $fieldobj->max_length;
31  }
32  $is_serial = is_object($fieldobj) && $fieldobj->primary_key && $fieldobj->auto_increment;
33 
34  $len = -1; // mysql max_length is not accurate
35  switch (strtoupper($t)) {
36  case 'STRING':
37  case 'CHAR':
38  case 'VARCHAR':
39  case 'TINYBLOB':
40  case 'TINYTEXT':
41  case 'ENUM':
42  case 'SET':
43  if ($len <= $this->blobSize) return 'C';
44 
45  case 'TEXT':
46  case 'LONGTEXT':
47  case 'MEDIUMTEXT':
48  return 'X';
49 
50  // php_mysql extension always returns 'blob' even if 'text'
51  // so we have to check whether binary...
52  case 'IMAGE':
53  case 'LONGBLOB':
54  case 'BLOB':
55  case 'MEDIUMBLOB':
56  return !empty($fieldobj->binary) ? 'B' : 'X';
57 
58  case 'YEAR':
59  case 'DATE': return 'D';
60 
61  case 'TIME':
62  case 'DATETIME':
63  case 'TIMESTAMP': return 'T';
64 
65  case 'FLOAT':
66  case 'DOUBLE':
67  return 'F';
68 
69  case 'INT':
70  case 'INTEGER': return $is_serial ? 'R' : 'I';
71  case 'TINYINT': return $is_serial ? 'R' : 'I1';
72  case 'SMALLINT': return $is_serial ? 'R' : 'I2';
73  case 'MEDIUMINT': return $is_serial ? 'R' : 'I4';
74  case 'BIGINT': return $is_serial ? 'R' : 'I8';
75  default: return 'N';
76  }
77  }
78 
79  function ActualType($meta)
80  {
81  switch(strtoupper($meta)) {
82  case 'C': return 'VARCHAR';
83  case 'XL':return 'LONGTEXT';
84  case 'X': return 'TEXT';
85 
86  case 'C2': return 'VARCHAR';
87  case 'X2': return 'LONGTEXT';
88 
89  case 'B': return 'LONGBLOB';
90 
91  case 'D': return 'DATE';
92  case 'TS':
93  case 'T': return 'DATETIME';
94  case 'L': return 'TINYINT';
95 
96  case 'R':
97  case 'I4':
98  case 'I': return 'INTEGER';
99  case 'I1': return 'TINYINT';
100  case 'I2': return 'SMALLINT';
101  case 'I8': return 'BIGINT';
102 
103  case 'F': return 'DOUBLE';
104  case 'N': return 'NUMERIC';
105  default:
106  return $meta;
107  }
108  }
109 
110  // return string must begin with space
111  function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
112  {
113  $suffix = '';
114  if ($funsigned) $suffix .= ' UNSIGNED';
115  if ($fnotnull) $suffix .= ' NOT NULL';
116  if (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
117  if ($fautoinc) $suffix .= ' AUTO_INCREMENT';
118  if ($fconstraint) $suffix .= ' '.$fconstraint;
119  return $suffix;
120  }
121 
122  /*
123  CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)]
124  [table_options] [select_statement]
125  create_definition:
126  col_name type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT]
127  [PRIMARY KEY] [reference_definition]
128  or PRIMARY KEY (index_col_name,...)
129  or KEY [index_name] (index_col_name,...)
130  or INDEX [index_name] (index_col_name,...)
131  or UNIQUE [INDEX] [index_name] (index_col_name,...)
132  or FULLTEXT [INDEX] [index_name] (index_col_name,...)
133  or [CONSTRAINT symbol] FOREIGN KEY [index_name] (index_col_name,...)
134  [reference_definition]
135  or CHECK (expr)
136  */
137 
138  /*
139  CREATE [UNIQUE|FULLTEXT] INDEX index_name
140  ON tbl_name (col_name[(length)],... )
141  */
142 
143  function _IndexSQL($idxname, $tabname, $flds, $idxoptions)
144  {
145  $sql = array();
146 
147  if ( isset($idxoptions['REPLACE']) || isset($idxoptions['DROP']) ) {
148  if ($this->alterTableAddIndex) $sql[] = "ALTER TABLE $tabname DROP INDEX $idxname";
149  else $sql[] = sprintf($this->dropIndex, $idxname, $tabname);
150 
151  if ( isset($idxoptions['DROP']) )
152  return $sql;
153  }
154 
155  if ( empty ($flds) ) {
156  return $sql;
157  }
158 
159  if (isset($idxoptions['FULLTEXT'])) {
160  $unique = ' FULLTEXT';
161  } elseif (isset($idxoptions['UNIQUE'])) {
162  $unique = ' UNIQUE';
163  } else {
164  $unique = '';
165  }
166 
167  if ( is_array($flds) ) $flds = implode(', ',$flds);
168 
169  if ($this->alterTableAddIndex) $s = "ALTER TABLE $tabname ADD $unique INDEX $idxname ";
170  else $s = 'CREATE' . $unique . ' INDEX ' . $idxname . ' ON ' . $tabname;
171 
172  $s .= ' (' . $flds . ')';
173 
174  if ( isset($idxoptions[$this->upperName]) )
175  $s .= $idxoptions[$this->upperName];
176 
177  $sql[] = $s;
178 
179  return $sql;
180  }
181 }
ADODB2_mysql\$alterTableAddIndex
$alterTableAddIndex
Definition: datadict-mysql.inc.php:19
ADODB2_mysql\$renameColumn
$renameColumn
Definition: datadict-mysql.inc.php:23
ADODB2_mysql\$databaseType
$databaseType
Definition: datadict-mysql.inc.php:17
$sql
$sql
Definition: server.php:82
ADODB2_mysql\$alterCol
$alterCol
Definition: datadict-mysql.inc.php:18
die
die
Definition: index.php:6
ADODB2_mysql\_IndexSQL
_IndexSQL($idxname, $tabname, $flds, $idxoptions)
Definition: datadict-mysql.inc.php:143
ADODB_DataDict
Definition: adodb-datadict.inc.php:164
ADODB2_mysql\$dropIndex
$dropIndex
Definition: datadict-mysql.inc.php:22
ADODB2_mysql
Definition: datadict-mysql.inc.php:16
ADODB2_mysql\_CreateSuffix
_CreateSuffix($fname, &$ftype, $fnotnull, $fdefault, $fautoinc, $fconstraint, $funsigned)
Definition: datadict-mysql.inc.php:111
ADODB2_mysql\MetaType
MetaType($t, $len=-1, $fieldobj=false)
Definition: datadict-mysql.inc.php:25
ADODB2_mysql\$dropTable
$dropTable
Definition: datadict-mysql.inc.php:20
ADODB2_mysql\ActualType
ActualType($meta)
Definition: datadict-mysql.inc.php:79