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MINOR: use ENUM hack for dealing with SET legacy values (from r98042)

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@102569 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer 2010-04-13 01:49:58 +00:00
parent 92a25a3e68
commit a2055d1d67
1 changed files with 24 additions and 23 deletions
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47
core/model/Database.php
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@ -475,35 +475,36 @@ abstract class SS_Database {
Profiler::unmark('createField');
$this->alterationMessage("Field $table.$field: created as $spec_orig","created");
} else if($fieldValue != $specValue) {
// If enums are being modified, then we need to fix existing data in the table.
// If enums/sets are being modified, then we need to fix existing data in the table.
// Update any records where the enum is set to a legacy value to be set to the default.
// One hard-coded exception is SiteTree - the default for this is Page.
if(substr($specValue, 0, 4) == "enum") {
$newStr = preg_replace("/(^enum\s*\(')|('$\).*)/i","",$spec_orig);
$new = preg_split("/'\s*,\s*'/", $newStr);
foreach(array('enum','set') as $enumtype) {
if(preg_match("/^$enumtype/i",$specValue)) {
$newStr = preg_replace("/(^$enumtype\s*\(')|('$\).*)/i","",$spec_orig);
$new = preg_split("/'\s*,\s*'/", $newStr);
$oldStr = preg_replace("/(^enum\s*\(')|('$\).*)/i","", $fieldValue);
$old = preg_split("/'\s*,\s*'/", $newStr);
$oldStr = preg_replace("/(^$enumtype\s*\(')|('$\).*)/i","", $fieldValue);
$old = preg_split("/'\s*,\s*'/", $newStr);
$holder = array();
foreach($old as $check) {
if(!in_array($check, $new)) {
$holder[] = $check;
$holder = array();
foreach($old as $check) {
if(!in_array($check, $new)) {
$holder[] = $check;
}
}
}
if(count($holder)) {
$default = explode('default ', $spec_orig);
$default = $default[1];
if($default == "'SiteTree'") $default = "'Page'";
$query = "UPDATE \"$table\" SET $field=$default WHERE $field IN (";
for($i=0;$i+1<count($holder);$i++) {
$query .= "'{$holder[$i]}', ";
if(count($holder)) {
$default = explode('default ', $spec_orig);
$default = $default[1];
if($default == "'SiteTree'") $default = "'Page'";
$query = "UPDATE \"$table\" SET $field=$default WHERE $field IN (";
for($i=0;$i+1<count($holder);$i++) {
$query .= "'{$holder[$i]}', ";
}
$query .= "'{$holder[$i]}')";
DB::query($query);
$amount = DB::affectedRows();
$this->alterationMessage("Changed $amount rows to default value of field $field (Value: $default)");
}
$query .= "'{$holder[$i]}')";
DB::query($query);
$amount = DB::affectedRows();
$this->alterationMessage("Changed $amount rows to default value of field $field (Value: $default)");
}
}
Profiler::mark('alterField');