PhabricatorConfigTableSchema.php
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PhabricatorConfigTableSchema.php
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			<?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;
			}

			}