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When dropping columns, look for check constraints and drop them too.

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This commit is contained in:
stronk7 2006-09-12 22:13:45 +00:00
parent ec68af222e
commit d256743c5b
1 changed files with 12 additions and 3 deletions
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15
lib/xmldb/classes/generators/mssql/mssql.class.php
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@ -131,7 +131,7 @@ class XMLDBmssql extends XMLDBgenerator {
function getEnumExtraSQL ($xmldb_table, $xmldb_field) {
$sql = 'CONSTRAINT ' . $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'ck');
$sql.= ' CHECK (' . $this->getEncQuoted($xmldb_field->getName()) . ' IN (' . implode(', ', $xmldb_field->getEnumValues()) . ')),';
$sql.= ' CHECK (' . $this->getEncQuoted($xmldb_field->getName()) . ' IN (' . implode(', ', $xmldb_field->getEnumValues()) . '))';
return $sql;
}
@ -149,15 +149,24 @@ class XMLDBmssql extends XMLDBgenerator {
/// Get the quoted name of the table and field
$tablename = $this->getEncQuoted($this->prefix . $xmldb_table->getName());
$fieldname = $this->getEncQuoted($xmldb_field->getName());
$checkconsname = $this->getNameForObject($xmldb_table->getName(), $xmldb_field->getName(), 'ck');
/// Look for any default constraint in this field and drop it
if ($default = get_record_sql("SELECT id, object_name(cdefault) AS defaultconstraint
FROM syscolumns
WHERE id = object_id('{$tablename}') AND
name = '$fieldname'")) {
name = '{$fieldname}'")) {
$results[] = 'ALTER TABLE ' . $tablename . ' DROP CONSTRAINT ' . $default->defaultconstraint;
}
/// Look for any check constraint in this field and drop it
if ($check = get_record_sql("SELECT id, object_name(constid) AS checkconstraint
FROM sysconstraints
WHERE id = object_id('{$tablename}') AND
object_name(constid) = '$checkconsname'")) {
$results[] = 'ALTER TABLE ' . $tablename . ' DROP CONSTRAINT ' . $check->checkconstraint;
}
/// Build the standard alter table drop
$results[] = 'ALTER TABLE ' . $tablename . ' DROP COLUMN ' . $fieldname;