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phorge-phorge/src/applications/config/schema/PhabricatorConfigTableSchema.php
epriestley fb8da6f4af Support key schemata and column nullability
Summary:
Ref T1191. The major issue motivation here is that InnoDB keys have a maximum length of 767 bytes. When we move `utf8` colums to `utf8mb4` columns, they'll jump from 3 bytes per character to 4 bytes per character, which may make some indexes too long. Add key schema to help spot this.

Also add nullability since it doesn't hurt.

Test Plan: See screenshots.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10499
2014-09-18 08:32:21 -07:00

77 lines
1.7 KiB
PHP

<?php
final class PhabricatorConfigTableSchema
extends PhabricatorConfigStorageSchema {
private $collation;
private $columns = array();
private $keys = array();
public function addColumn(PhabricatorConfigColumnSchema $column) {
$key = $column->getName();
if (isset($this->columns[$key])) {
throw new Exception(
pht('Trying to add duplicate column "%s"!', $key));
}
$this->columns[$key] = $column;
return $this;
}
public function addKey(PhabricatorConfigKeySchema $key) {
$name = $key->getName();
if (isset($this->keys[$name])) {
throw new Exception(
pht('Trying to add duplicate key "%s"!', $name));
}
$this->keys[$name] = $key;
return $this;
}
public function getColumns() {
return $this->columns;
}
public function getColumn($key) {
return idx($this->getColumns(), $key);
}
public function getKeys() {
return $this->keys;
}
public function getKey($key) {
return idx($this->getKeys(), $key);
}
protected function getSubschemata() {
return array_merge($this->getColumns(), $this->getKeys());
}
public function setCollation($collation) {
$this->collation = $collation;
return $this;
}
public function getCollation() {
return $this->collation;
}
public function compareToSimilarSchema(
PhabricatorConfigStorageSchema $expect) {
$issues = array();
if ($this->getCollation() != $expect->getCollation()) {
$issues[] = self::ISSUE_COLLATION;
}
return $issues;
}
public function newEmptyClone() {
$clone = clone $this;
$clone->columns = array();
$clone->keys = array();
return $clone;
}
}