GNUsocial/gnu-social
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use schema tool to create a table

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This commit is contained in:
Evan Prodromou 2009-09-23 22:24:35 -04:00
parent e206324f24
commit 3449843f83
1 changed files with 99 additions and 0 deletions
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99
lib/schema.php
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@ -110,18 +110,87 @@ class Schema
public function getColumnDef($table, $column)
{
$td = $this->getTableDef($table);
foreach ($td->columns as $cd) {
if ($cd->name == $column) {
return $cd;
}
}
return null;
}
public function getIndexDef($table, $index)
{
return null;
}
public function createTable($name, $columns, $indices=null)
{
$uniques = array();
$primary = array();
$indices = array();
$sql = "CREATE TABLE $name (\n";
for ($i = 0; $i < count($columns); $i++) {
$cd =& $columns[$i];
if ($i > 0) {
$sql .= ",\n";
}
$sql .= $this->_columnSql($cd);
switch ($cd->key) {
case 'UNI':
$uniques[] = $cd->name;
break;
case 'PRI':
$primary[] = $cd->name;
break;
case 'MUL':
$indices[] = $cd->name;
break;
}
}
if (count($primary) > 0) { // it really should be...
$sql .= ",\nconstraint primary key (" . implode(',', $primary) . ")";
}
foreach ($uniques as $u) {
$sql .= ",\nunique index {$name}_{$u}_idx ($u)";
}
foreach ($indices as $i) {
$sql .= ",\nindex {$name}_{$i}_idx ($i)";
}
$sql .= "); ";
common_debug($sql);
$res =& $this->conn->query($sql);
if (PEAR::isError($res)) {
throw new Exception($res->getMessage());
}
return true;
}
public function dropTable($name)
{
$res =& $this->conn->query("DROP TABLE $name");
if (PEAR::isError($res)) {
throw new Exception($res->getMessage());
}
return true;
}
public function createIndex($name, $table, $columns)
@ -151,6 +220,25 @@ class Schema
return $this->createTable($name, $columns, $indices);
}
}
function _columnSql($cd)
{
$sql = "{$cd->name} ";
if (!empty($cd->size)) {
$sql .= "{$cd->type}({$cd->size}) ";
} else {
$sql .= "{$cd->type} ";
}
if (!empty($cd->default)) {
$sql .= "default {$cd->default} ";
} else {
$sql .= ($cd->nullable) ? "null " : "not null ";
}
return $sql;
}
}
class TableDef
@ -168,6 +256,17 @@ class ColumnDef
public $key;
public $default;
public $extra;
function __construct($name, $type, $size=null, $nullable=null,
$key=null, $default=null, $extra=null) {
$this->name = $name;
$this->type = $type;
$this->size = $size;
$this->nullable = $nullable;
$this->key = $key;
$this->default = $default;
$this->extra = $extra;
}
}
class IndexDef