oreolek/kohana-migrations
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Fixed a few bugs and added sensible funtionality:

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* Fixed a bug where already appled migrations would be selected when asked to bring a location up to latest version
* You can now use booleans to get migrations needed to migrate to one of two extremes (TRUE = latest, FALSE = undo everything)
* If you're rolling back to a version then you don't want to execute the down() for that migration
This commit is contained in:
Matt Button 2010-12-28 03:29:57 +00:00
parent 8cadcbf309
commit 9e6cfc6a59
1 changed files with 23 additions and 8 deletions
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31
classes/model/minion/migration.php
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@ -74,7 +74,7 @@ class Model_Minion_Migration extends Model
* @param string Migration's location
* @param string Target migration id
*/
public function fetch_required_migrations($locations = NULL, $target = NULL)
public function fetch_required_migrations($locations = NULL, $target = TRUE)
{
if( ! empty($locations) AND ! is_array($locations))
{
@ -112,7 +112,7 @@ class Model_Minion_Migration extends Model
$migrations_to_apply[$location]['direction'] = 1;
$migrations_to_apply[$location]['migrations'] = array();
$query = $this->_select()->and_where('location', '=', $location);
$query = $this->_select()->where('location', '=', $location);
// one of these conditions occurs if
// a) the user specified they want to bring this location up to date
@ -121,9 +121,24 @@ class Model_Minion_Migration extends Model
//
// Basically this checks that the user hasn't explicitly specified a version
// to migrate to
if($target === NULL OR $target === $location)
if(is_bool($target) OR $target === $location)
{
$query->order_by('timestamp', 'ASC');
// We're "undoing" all applied migrations, i.e. rolling back
if($target === FALSE)
{
$migrations_to_apply[$location]['direction'] = -1;
$query
->where('applied', '=', 1)
->order_by('timestamp', 'DESC');
}
// We're rolling forward
else
{
$query
->where('applied', '=', 0)
->order_by('timestamp', 'ASC');
}
}
// Else if the user explicitly specified a target version of some kind
else
@ -138,10 +153,10 @@ class Model_Minion_Migration extends Model
continue;
}
$query->and_where('location', '=', $location);
$query->where('location', '=', $location);
// If they haven't applied any migrations for this location
// yet and are just wanting to apply all migrations (i.e. roll forward)
// yet and are justwhere wanting to apply all migrations (i.e. roll forward)
if($current_timestamp === NULL)
{
$query
@ -152,7 +167,7 @@ class Model_Minion_Migration extends Model
elseif($timestamp > $current_timestamp)
{
$query
->and_where('timestamp', '<=', $timestamp)
->and_where('timestamp', '<=', $timestamp)
->and_where('applied', '=', 0)
->order_by('timestamp', 'ASC');
}
@ -161,7 +176,7 @@ class Model_Minion_Migration extends Model
{
$query
->and_where('timestamp', '<', $current_timestamp)
->and_where('timestamp', '>=', $timestamp)
->and_where('timestamp', '>', $timestamp)
->and_where('applied', '=', 1)
->order_by('timestamp', 'DESC');