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Code Issues Releases Wiki Activity

- DibiTranslator: modifiers %ex, %by, %n improved, %SQL added

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- DibiDataSource: allows select columns, sorting and conditions
This commit is contained in:
David Grudl
2009-02-05 21:10:50 +00:00
parent 46d79fc305
commit dd6ffc3d0e
2 changed files with 122 additions and 19 deletions
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122
dibi/libs/DibiDataSource.php
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@@ -38,6 +38,15 @@ class DibiDataSource extends DibiObject implements IDataSource
/** @var int */
private $count;
/** @var array */
private $cols = array();
/** @var array */
private $sorting = array();
/** @var array */
private $conds = array();
/**
@@ -46,14 +55,7 @@ class DibiDataSource extends DibiObject implements IDataSource
*/
public function __construct($sql, DibiConnection $connection = NULL)
{
if (strpos($sql, ' ') === FALSE) {
// table name
$this->sql = $sql;
} else {
// SQL command
$this->sql = '(' . $sql . ') AS [source]';
}
$this->sql = $sql;
$this->connection = $connection === NULL ? dibi::getConnection() : $connection;
}
@@ -63,15 +65,17 @@ class DibiDataSource extends DibiObject implements IDataSource
* @param int offset
* @param int limit
* @param array columns
* @return ArrayIterator
* @return DibiResultIterator
*/
public function getIterator($offset = NULL, $limit = NULL)
{
return $this->connection->query('
SELECT *
FROM', $this->sql, '
SELECT %n', (empty($this->cols) ? '*' : $this->cols), '
FROM (%SQL) AS [t]', $this->sql, '
WHERE %and', $this->conds, '
ORDER BY %by', $this->sorting, '
%ofs %lmt', $offset, $limit
);
)->getIterator();
}
@@ -82,11 +86,101 @@ class DibiDataSource extends DibiObject implements IDataSource
public function count()
{
if ($this->count === NULL) {
$this->count = $this->connection->query('
SELECT COUNT(*) FROM', $this->sql
$this->count = $this->connection->nativeQuery(
'SELECT COUNT(*) FROM (' . $this->sql . ') AS t'
)->fetchSingle();
}
return $this->count;
}
/**
* Returns SQL wrapped as DibiFluent.
* @return DibiFluent
* @throws DibiException
*/
public function toFluent()
{
return $this->connection->select('*')->from('(%SQL) AS [t]', $this->__toString());
}
/**
* @return DibiDataSource
*/
public function toDataSource()
{
return new self($this->__toString(), $this->connection);
}
/**
* Returns SQL query.
* @return string
*/
final public function __toString()
{
return $this->connection->sql('
SELECT %n', (empty($this->cols) ? '*' : $this->cols), '
FROM (%SQL) AS [t]', $this->sql, '
WHERE %and', $this->conds, '
ORDER BY %by', $this->sorting, '
');
}
/**
*/
public function select($col, $as = NULL)
{
if (is_array($col)) {
$this->cols = $col;
} else {
$this->cols[$col] = $as;
}
}
/**
*/
public function where($cond)
{
if (is_array($cond)) {
// TODO: not consistent with select and orderBy
$this->conds[] = $cond;
} else {
$this->conds[] = func_get_args();
}
}
/**
*/
public function orderBy($row, $sorting = 'ASC')
{
if (is_array($row)) {
$this->sorting = $row;
} else {
$this->sorting[$row] = $sorting;
}
}
/**
* Returns the dibi connection.
* @return DibiConnection
*/
final public function getConnection()
{
return $this->connection;
}
}