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Fix constraint checking and only run it if not already constrained

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This commit is contained in:
Mikael Nordfeldth 2016-04-01 06:24:11 +02:00
parent 558cbe5b6d
commit 195285ac2f
1 changed files with 67 additions and 58 deletions
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125
classes/Notice.php
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@ -3087,68 +3087,77 @@ class Notice extends Managed_DataObject
$schema = Schema::get();
$schemadef = $schema->getTableDef($table);
printfnq("\nConstraint checking Notice table...\n");
/**
* Improve typing and make sure no NULL values in any id-related columns are 0
* Make sure constraints are met before upgrading, if foreign keys
* are not already in use.
* 2016-03-31
*/
foreach (['reply_to', 'repeat_of'] as $field) {
$notice = new Notice(); // reset the object
$notice->query(sprintf('UPDATE %1$s SET %2$s=NULL WHERE %2$s=0', $notice->escapedTableName(), $field));
// Now we're sure that no Notice entries have repeat_of=0, only an id > 0 or NULL
unset($notice);
}
/**
* Make sure constraints are met before upgrading.
* 2016-03-31
*
* Will find foreign keys which do not fulfill the constraints and fix
* where appropriate, such as delete when "repeat_of" ID not found in notice.id
* or set to NULL for "reply_to" in the same case.
*
* XXX: How does this work if we would use multicolumn foreign keys?
*/
foreach (['reply_to' => 'reset', 'repeat_of' => 'delete', 'profile' => 'delete'] as $field=>$action) {
$notice = new Notice();
$fkeyname = $notice->tableName().'_'.$field.'_fkey';
assert(isset($schemadef['foreign keys'][$fkeyname]) && $schemadef['foreign keys'][$fkeyname]);
$foreign_key = $schemadef['foreign keys'][$fkeyname];
printfnq("\n"._ve($schemadef));
$fkeytable = $foreign_key[0];
assert(isset($foreign_key[1][$field]));
$fkeycol = $foreign_key[1][$field];
// NOTE: Above we set all repeat_of to NULL if they were 0, so this really gets them all.
$notice->whereAdd(sprintf('%1$s NOT IN (SELECT %2$s FROM %3$s)', $field, $fkeycol, $fkeytable));
if ($notice->find()) {
printfnq("\tFound {$notice->N} notices with {$field} NOT IN notice.id, {$action}ing...");
switch ($action) {
case 'delete': // since it's a directly dependant notice for an unknown ID we don't want it in our DB
while ($notice->fetch()) {
// $notice->delete();
printfnq("\n deleting {$notice->id}");
}
break;
case 'reset': // just set it to NULL to be compatible with our constraints, if it was related to an unknown ID
$ids = [];
foreach ($notice->fetchAll('id') as $id) {
settype($id, 'int');
$ids[] = $id;
}
$notice = new Notice();
$notice->query(sprintf('UPDATE %1$s SET %2$s=NULL WHERE id IN (%3$s)',
$notice->escapedTableName(),
$field,
implode(',', $ids)));
break;
default:
throw new ServerException('The programmer sucks, invalid action name when fixing table.');
}
printfnq("DONE.\n");
if (!isset($schemadef['foreign keys'])) {
$newschemadef = self::schemaDef();
printfnq("\nConstraint checking Notice table...\n");
/**
* Improve typing and make sure no NULL values in any id-related columns are 0
* 2016-03-31
*/
foreach (['reply_to', 'repeat_of'] as $field) {
$notice = new Notice(); // reset the object
$notice->query(sprintf('UPDATE %1$s SET %2$s=NULL WHERE %2$s=0', $notice->escapedTableName(), $field));
// Now we're sure that no Notice entries have repeat_of=0, only an id > 0 or NULL
unset($notice);
}
/**
* This Will find foreign keys which do not fulfill the constraints and fix
* where appropriate, such as delete when "repeat_of" ID not found in notice.id
* or set to NULL for "reply_to" in the same case.
* 2016-03-31
*
* XXX: How does this work if we would use multicolumn foreign keys?
*/
foreach (['reply_to' => 'reset', 'repeat_of' => 'delete', 'profile_id' => 'delete'] as $field=>$action) {
$notice = new Notice();
$fkeyname = $notice->tableName().'_'.$field.'_fkey';
assert(isset($newschemadef['foreign keys'][$fkeyname]));
assert($newschemadef['foreign keys'][$fkeyname]);
$foreign_key = $newschemadef['foreign keys'][$fkeyname];
$fkeytable = $foreign_key[0];
assert(isset($foreign_key[1][$field]));
$fkeycol = $foreign_key[1][$field];
printfnq("* {$fkeyname} ({$field} => {$fkeytable}.{$fkeycol})\n");
// NOTE: Above we set all repeat_of to NULL if they were 0, so this really gets them all.
$notice->whereAdd(sprintf('%1$s NOT IN (SELECT %2$s FROM %3$s)', $field, $fkeycol, $fkeytable));
if ($notice->find()) {
printfnq("\tFound {$notice->N} notices with {$field} NOT IN notice.id, {$action}ing...");
switch ($action) {
case 'delete': // since it's a directly dependant notice for an unknown ID we don't want it in our DB
while ($notice->fetch()) {
$notice->delete();
}
break;
case 'reset': // just set it to NULL to be compatible with our constraints, if it was related to an unknown ID
$ids = [];
foreach ($notice->fetchAll('id') as $id) {
settype($id, 'int');
$ids[] = $id;
}
unset($notice);
$notice = new Notice();
$notice->query(sprintf('UPDATE %1$s SET %2$s=NULL WHERE id IN (%3$s)',
$notice->escapedTableName(),
$field,
implode(',', $ids)));
break;
default:
throw new ServerException('The programmer sucks, invalid action name when fixing table.');
}
printfnq("DONE.\n");
}
unset($notice);
}
unset($notice);
}
// 2015-09-04 We move Notice location data to Notice_location