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Code Issues Releases Wiki Activity

applyLimit support

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This commit is contained in:
David Grudl
2006-09-23 07:55:11 +00:00
parent da608c2db2
commit d705f4089d
8 changed files with 74 additions and 19 deletions
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4
dibi.compact/dibi.compact.php
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File diff suppressed because one or more lines are too long

6
dibi/#todo.txt
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@@ -1,5 +1,3 @@
limit/offset support for select? 1) better logging, error logging, exceptions
complete phpdoc 2) complete phpdoc
better logging, error logging, exceptions

26
dibi/drivers/mysql.php
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@@ -176,22 +176,24 @@ class DibiMySqlDriver extends DibiDriver {
} }
/* /**
// is this really needed? * @see DibiDriver::applyLimit()
*/
public function applyLimit(&$sql, $limit, $offset = 0)
{
if ($limit < 0 && $offset < 1) return;
// see http://dev.mysql.com/doc/refman/5.0/en/select.html
$sql .= ' LIMIT ' . ($limit < 0 ? '18446744073709551615' : (int) $limit)
. ($offset > 0 ? ' OFFSET ' . (int) $offset : '');
}
/* is this really needed?
public function getResource() public function getResource()
{ {
return $this->conn; return $this->conn;
} }
// experimental
public function applyLimit(&$sql, $offset, $limit)
{
if ($limit > 0) {
$sql .= " LIMIT " . (int) $limit . ($offset > 0 ? " OFFSET " . (int) $offset : "");
} elseif ($offset > 0) {
$sql .= " LIMIT " . $offset . ", 18446744073709551615";
}
}
*/ */
} // DibiMySqlDriver } // DibiMySqlDriver

13
dibi/drivers/mysqli.php
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@@ -157,6 +157,19 @@ class DibiMySqliDriver extends DibiDriver {
} }
/**
* @see DibiDriver::applyLimit()
*/
public function applyLimit(&$sql, $limit, $offset = 0)
{
if ($limit < 0 && $offset < 1) return;
// see http://dev.mysql.com/doc/refman/5.0/en/select.html
$sql .= ' LIMIT ' . ($limit < 0 ? '18446744073709551615' : (int) $limit)
. ($offset > 0 ? ' OFFSET ' . (int) $offset : '');
}
} // class DibiMySqliDriver } // class DibiMySqliDriver

12
dibi/drivers/odbc.php
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@@ -153,6 +153,18 @@ class DibiOdbcDriver extends DibiDriver {
trigger_error('Meta is not implemented yet.', E_USER_WARNING); trigger_error('Meta is not implemented yet.', E_USER_WARNING);
} }
/**
* @see DibiDriver::applyLimit()
*/
public function applyLimit(&$sql, $limit, $offset = 0)
{
// offset suppot is missing...
if ($limit >= 0)
$sql = 'SELECT TOP ' . (int) $limit . ' * FROM (' . $sql . ')';
}
} // class DibiOdbcDriver } // class DibiOdbcDriver

13
dibi/drivers/postgre.php
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@@ -148,6 +148,19 @@ class DibiPostgreDriver extends DibiDriver {
/**
* @see DibiDriver::applyLimit()
*/
public function applyLimit(&$sql, $limit, $offset = 0)
{
if ($limit >= 0)
$sql .= ' LIMIT ' . (int) $limit;
if ($offset > 0)
$sql .= ' OFFSET ' . (int) $offset;
}
} // class DibiPostgreDriver } // class DibiPostgreDriver

9
dibi/drivers/sqlite.php
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@@ -148,6 +148,15 @@ class DibiSqliteDriver extends DibiDriver {
/**
* @see DibiDriver::applyLimit()
*/
public function applyLimit(&$sql, $limit, $offset = 0)
{
if ($limit < 0 && $offset < 1) return;
$sql .= ' LIMIT ' . $limit . ($offset > 0 ? ' OFFSET ' . (int) $offset : '');
}
} // class DibiSqliteDriver } // class DibiSqliteDriver

10
dibi/libs/driver.php
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@@ -142,7 +142,6 @@ abstract class DibiDriver
/** /**
* Gets a information of the current database. * Gets a information of the current database.
* *
@@ -151,5 +150,14 @@ abstract class DibiDriver
abstract public function getMetaData(); abstract public function getMetaData();
/**
* Experimental - injects LIMIT/OFFSET to the SQL query
* @param string &$sql The SQL query that will be modified.
* @param int $limit
* @param int $offset
* @return void
*/
abstract public function applyLimit(&$sql, $limit, $offset = 0);
} // class DibiDriver } // class DibiDriver