.github/workflows/ci.yml

@@ -1,25 +0,0 @@
-name: CI
-
-on:
-  push:
-  pull_request:
-  workflow_dispatch:
-
-jobs:
-  ci:
-    name: CI
-    uses: silverstripe/gha-ci/.github/workflows/ci.yml@v1
-    with:
-      # set phpunit to false to prevent automatic generation of mysql phpunit jobs
-      phpunit: false
-      extra_jobs: |
-        - php: 7.4
-          db: pgsql
-          phpunit: true
-          composer_args: --prefer-lowest
-        - php: 8.0
-          db: pgsql
-          phpunit: true
-        - php: 8.1
-          db: pgsql
-          phpunit: true

.github/workflows/dispatch-ci.yml

@@ -1,16 +0,0 @@
-name: Dispatch CI
-
-on:
-  # At 12:20 PM UTC, only on Thursday and Friday
-  schedule:
-    - cron: '20 12 * * 4,5'
-
-jobs:
-  dispatch-ci:
-    name: Dispatch CI
-    # Only run cron on the silverstripe account
-    if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Dispatch CI
-        uses: silverstripe/gha-dispatch-ci@v1

.github/workflows/keepalive.yml

@@ -1,17 +0,0 @@
-name: Keepalive
-
-on:
-  workflow_dispatch:
-  # The 4th of every month at 10:50am UTC
-  schedule:
-    - cron: '50 10 4 * *'
-
-jobs:
-  keepalive:
-    name: Keepalive
-    # Only run cron on the silverstripe account
-    if: (github.event_name == 'schedule' && github.repository_owner == 'silverstripe') || (github.event_name != 'schedule')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Keepalive
-        uses: silverstripe/gha-keepalive@v1

.scrutinizer.yml

@@ -0,0 +1,15 @@
+inherit: true
+
+build:
+  nodes:
+    analysis:
+      tests:
+        override: [php-scrutinizer-run]
+
+checks:
+  php:
+    code_rating: true
+    duplication: true
+
+filter:
+  paths: [code/*, tests/*]

.travis.yml

@@ -0,0 +1,43 @@
+language: php
+
+dist: trusty
+
+cache:
+  directories:
+    - $HOME/.composer/cache/files
+
+php:
+  - 5.6
+
+env:
+  global:
+    - DB="PGSQL"
+
+matrix:
+  fast_finish: true
+  include:
+    - php: 5.6
+      env:
+        - PHPUNIT_TEST=framework
+    - php: 5.6
+      env:
+        - PHPUNIT_TEST=postgresql
+        - PHPCS_TEST=1
+
+before_script:
+# Init PHP
+  - phpenv rehash
+  - phpenv config-rm xdebug.ini
+  - export PATH=~/.composer/vendor/bin:$PATH
+  - echo 'memory_limit = 2048M' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+
+# Install composer dependencies
+  - composer validate
+  - composer require --no-update silverstripe/recipe-cms:1.0.x-dev
+  - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
+  - if [[ $PHPCS_TEST ]]; then composer global require squizlabs/php_codesniffer:^3 --prefer-dist --no-interaction --no-progress --no-suggest -o; fi
+
+script:
+  - if [[ $PHPUNIT_TEST == postgresql ]]; then vendor/bin/phpunit ./tests; fi
+  - if [[ $PHPUNIT_TEST == framework ]]; then vendor/bin/phpunit ./vendor/silverstripe/framework/tests/php; fi
+  - if [[ $PHPCS_TEST ]]; then composer run-script lint; fi

README.md

@@ -1,54 +1,34 @@
 # PostgreSQL Module Module
 
-[![CI](https://github.com/silverstripe/silverstripe-postgresql/actions/workflows/ci.yml/badge.svg)](https://github.com/silverstripe/silverstripe-postgresql/actions/workflows/ci.yml)
+[![Build Status](https://travis-ci.org/silverstripe/silverstripe-postgresql.png?branch=master)](https://travis-ci.org/silverstripe/silverstripe-postgresql)
-[![Silverstripe supported module](https://img.shields.io/badge/silverstripe-supported-0071C4.svg)](https://www.silverstripe.org/software/addons/silverstripe-commercially-supported-module-list/)
+
+## Maintainer Contact
+
+ * Sam Minnee (Nickname: sminnee) <sam@silverstripe.com>
 
 ## Requirements
 
-* Silverstripe 4.0
+* SilverStripe 4.0
-* PostgreSQL >=9.2
+* PostgreSQL 8.3.x or greater must be installed
-* Note: PostgreSQL 10 has not been tested
+* PostgreSQL <8.3.0 may work if T-Search is manually installed
+*  Known to work on OS X Leopard, Windows Server 2008 R2 and Linux
 
 ## Installation
 
-```
+ 1. Install via composer `composer require silverstripe/postgresql` or extract the contents
-composer require silverstripe/postgresql
+    so they reside as a `postgresql` directory inside your SilverStripe project code
-```
+ 2. Open the installer by browsing to install.php, e.g. http://localhost/silverstripe/install.php
-
+ 3. Select PostgreSQL in the database list and enter your database details
-## Configuration
-
-### Environment file
-
-Add the following settings to your `.env` file:
-
-```
-SS_DATABASE_CLASS=PostgreSQLDatabase
-SS_DATABASE_USERNAME=
-SS_DATABASE_PASSWORD=
-```
-
-See [environment variables](https://docs.silverstripe.org/en/4/getting_started/environment_management) for more details. Note that a database will automatically be created via `dev/build`.
-
-### Through the installer
-
-Open the installer by browsing to install.php, e.g. http://localhost/install.php
-Select PostgreSQL in the database list and enter your database details
 
 ## Usage Overview
 
-See [docs/en](docs/en/README.md) for more information about configuring the module.
+See docs/en for more information about configuring the module.
 	
 ## Known issues
 
 All column and table names must be double-quoted.  PostgreSQL automatically 
 lower-cases columns, and your queries will fail if you don't.
 
-Collations have known issues when installed on Alpine, MacOS X and BSD derivatives
-(see [PostgreSQL FAQ](https://wiki.postgresql.org/wiki/FAQ#Why_do_my_strings_sort_incorrectly.3F)).
-We do not support such installations, although they still may work correctly for you.
-As a workaround for PostgreSQL 10+ you could manually switch to ICU collations (e.g. und-x-icu).
-There are no known workarounds for PostgreSQL <10.
-
 Ts_vector columns are not automatically detected by the built-in search 
 filters.  That means if you're doing a search through the CMS on a ModelAdmin
 object, it will use LIKE queries which are very slow.  If you're writing your 

code/PostgreSQLDatabase.php

@@ -36,11 +36,6 @@ class PostgreSQLDatabase extends Database
      */
     protected $schema;
 
-    /**
-     * @var bool
-     */
-    protected $transactionNesting = 0;
-
     /**
      * Toggle if transactions are supported. Defaults to true.
      *
@@ -367,9 +362,6 @@ class PostgreSQLDatabase extends Database
      */
     public function searchEngine($classesToSearch, $keywords, $start, $pageLength, $sortBy = "ts_rank DESC", $extraFilter = "", $booleanSearch = false, $alternativeFileFilter = "", $invertedMatch = false)
     {
-        $start = (int)$start;
-        $pageLength = (int)$pageLength;
-
         //Fix the keywords to be ts_query compatitble:
         //Spaces must have pipes
         //@TODO: properly handle boolean operators here.
@@ -448,7 +440,7 @@ class PostgreSQLDatabase extends Database
 
             // Could parameterise this, but convention is only to to so for where conditions
             $query->addFrom(array(
-                'q' => ", to_tsquery('" . self::search_language() . "', $keywords)"
+                'tsearch' => ", to_tsquery('" . self::search_language() . "', $keywords) AS q"
             ));
             $query->setSelect(array());
 
@@ -524,9 +516,6 @@ class PostgreSQLDatabase extends Database
 
     public function transactionStart($transaction_mode = false, $session_characteristics = false)
     {
-        if ($this->transactionNesting > 0) {
-            $this->transactionSavepoint('NESTEDTRANSACTION' . $this->transactionNesting);
-        } else {
         $this->query('BEGIN;');
 
         if ($transaction_mode) {
@@ -537,8 +526,6 @@ class PostgreSQLDatabase extends Database
             $this->query("SET SESSION CHARACTERISTICS AS TRANSACTION {$session_characteristics};");
         }
     }
-        ++$this->transactionNesting;
-    }
 
     public function transactionSavepoint($savepoint)
     {
@@ -547,41 +534,17 @@ class PostgreSQLDatabase extends Database
 
     public function transactionRollback($savepoint = false)
     {
-        // Named savepoint
         if ($savepoint) {
-            $this->query('ROLLBACK TO ' . $savepoint);
+            $this->query("ROLLBACK TO {$savepoint};");
-            return true;
+        } else {
+            $this->query('ROLLBACK;');
         }
-
-        // Abort if unable to unnest, otherwise jump up a level
-        if (!$this->transactionNesting) {
-            return false;
-        }
-        --$this->transactionNesting;
-
-        // Rollback nested
-        if ($this->transactionNesting > 0) {
-            return $this->transactionRollback('NESTEDTRANSACTION' . $this->transactionNesting);
-        }
-
-        // Rollback top level
-        $this->query('ROLLBACK');
-        return true;
-    }
-
-    public function transactionDepth()
-    {
-        return $this->transactionNesting;
     }
 
     public function transactionEnd($chain = false)
     {
-        --$this->transactionNesting;
-        if ($this->transactionNesting <= 0) {
-            $this->transactionNesting = 0;
         $this->query('COMMIT;');
     }
-    }
 
     public function comparisonClause($field, $value, $exact = false, $negate = false, $caseSensitive = null, $parameterised = false)
     {
@@ -620,7 +583,7 @@ class PostgreSQLDatabase extends Database
     {
         preg_match_all('/%(.)/', $format, $matches);
         foreach ($matches[1] as $match) {
-            if (array_search($match, array('Y','m','d','H','i','s','U')) === false) {
+            if (array_search($match, array('Y', 'm', 'd', 'H', 'i', 's', 'U')) === false) {
                 user_error('formattedDatetimeClause(): unsupported format character %' . $match, E_USER_WARNING);
             }
         }

code/PostgreSQLQuery.php

@@ -18,23 +18,6 @@ class PostgreSQLQuery extends Query
      */
     private $handle;
 
-    private $columnNames = [];
-
-    /**
-     * Mapping of postgresql types to PHP types
-     * Note that the bool => int mapping is by design, designed to mimic MySQL's behaviour
-     * @var array
-     */
-    protected static $typeMapping = [
-        'bool' => 'int',
-        'int2' => 'int',
-        'int4' => 'int',
-        'int8' => 'int',
-        'float4' => 'float',
-        'float8' => 'float',
-        'numeric' => 'float',
-    ];
-
     /**
      * Hook the result-set given into a Query class, suitable for use by sapphire.
      * @param resource $handle the internal Postgres handle that is points to the resultset.
@@ -42,11 +25,6 @@ class PostgreSQLQuery extends Query
     public function __construct($handle)
     {
         $this->handle = $handle;
-
-        $numColumns = pg_num_fields($handle);
-        for ($i = 0; $i<$numColumns; $i++) {
-            $this->columnNames[$i] = pg_field_name($handle, $i);
-        }
     }
 
     public function __destruct()
@@ -58,10 +36,8 @@ class PostgreSQLQuery extends Query
 
     public function seek($row)
     {
-        // Specifying the zero-th record here will reset the pointer
+        pg_result_seek($this->handle, $row);
-        $result = pg_fetch_array($this->handle, $row, PGSQL_NUM);
+        return pg_fetch_assoc($this->handle);
-
-        return $this->parseResult($result);
     }
 
     public function numRecords()
@@ -71,39 +47,6 @@ class PostgreSQLQuery extends Query
 
     public function nextRecord()
     {
-        $row = pg_fetch_array($this->handle, null, PGSQL_NUM);
+        return pg_fetch_assoc($this->handle);
-
-        // Correct non-string types
-        if ($row) {
-            return $this->parseResult($row);
-        }
-
-        return false;
-    }
-
-    /**
-     * @param array $row
-     * @return array
-     */
-    protected function parseResult(array $row)
-    {
-        $record = [];
-
-        foreach ($row as $i => $v) {
-            $k = $this->columnNames[$i];
-            $record[$k] = $v;
-            $type = pg_field_type($this->handle, $i);
-            if (isset(self::$typeMapping[$type])) {
-                if ($type === 'bool' && $record[$k] === 't') {
-                    $record[$k] = 1;
-
-                    // Note that boolean 'f' will be converted to 0 by this
-                } else {
-                    settype($record[$k], self::$typeMapping[$type]);
-                }
-            }
-        }
-
-        return $record;
     }
 }

code/PostgreSQLSchemaManager.php

@@ -494,15 +494,9 @@ class PostgreSQLSchemaManager extends DBSchemaManager
         // First, we split the column specifications into parts
         // TODO: this returns an empty array for the following string: int(11) not null auto_increment
         //         on second thoughts, why is an auto_increment field being passed through?
-        $pattern = '/^([\w(\,)]+)\s?((?:not\s)?null)?\s?(default\s[\w\.\'\\\\]+)?\s?(check\s[\w()\'",\s\\\\]+)?$/i';
+
+        $pattern = '/^([\w(\,)]+)\s?((?:not\s)?null)?\s?(default\s[\w\.\']+)?\s?(check\s[\w()\'",\s]+)?$/i';
         preg_match($pattern, $colSpec, $matches);
-        // example value this regex is expected to parse:
-        // varchar(255) not null default 'SS\Test\Player' check ("ClassName" in ('SS\Test\Player', 'Player', null))
-        // split into:
-        // * varchar(255)
-        // * not null
-        // * default 'SS\Test\Player'
-        // * check ("ClassName" in ('SS\Test\Player', 'Player', null))
 
         if (sizeof($matches) == 0) {
             return '';
@@ -543,8 +537,8 @@ class PostgreSQLSchemaManager extends DBSchemaManager
                 if ($this->hasTable("{$tableName}_Live")) {
                     $updateConstraint .= "UPDATE \"{$tableName}_Live\" SET \"$colName\"='$default' WHERE \"$colName\" NOT IN ($constraint_values);";
                 }
-                if ($this->hasTable("{$tableName}_Versions")) {
+                if ($this->hasTable("{$tableName}_versions")) {
-                    $updateConstraint .= "UPDATE \"{$tableName}_Versions\" SET \"$colName\"='$default' WHERE \"$colName\" NOT IN ($constraint_values);";
+                    $updateConstraint .= "UPDATE \"{$tableName}_versions\" SET \"$colName\"='$default' WHERE \"$colName\" NOT IN ($constraint_values);";
                 }
 
                 $this->query($updateConstraint);
@@ -566,17 +560,8 @@ class PostgreSQLSchemaManager extends DBSchemaManager
 
     public function renameTable($oldTableName, $newTableName)
     {
-        $constraints = $this->getConstraintForTable($oldTableName);
         $this->query("ALTER TABLE \"$oldTableName\" RENAME TO \"$newTableName\"");
-
-        if ($constraints) {
-            foreach ($constraints as $old) {
-                $new = preg_replace('/^' . $oldTableName . '/', $newTableName, $old);
-                $this->query("ALTER TABLE \"$newTableName\" RENAME CONSTRAINT \"$old\" TO \"$new\";");
-            }
-        }
         unset(self::$cached_fieldlists[$oldTableName]);
-        unset(self::$cached_constraints[$oldTableName]);
     }
 
     public function checkAndRepairTable($tableName)
@@ -858,9 +843,7 @@ class PostgreSQLSchemaManager extends DBSchemaManager
             $argList = array();
             $nextArg = "";
             foreach ($bytes as $byte) {
-                if ($byte == '\x') {
+                if ($byte == "00") {
-                    continue;
-                } elseif ($byte == "00") {
                     $argList[] = $nextArg;
                     $nextArg = "";
                 } else {
@@ -978,28 +961,6 @@ class PostgreSQLSchemaManager extends DBSchemaManager
         return self::$cached_constraints[$constraint];
     }
 
-    /**
-     * Retrieve a list of constraints for the provided table name.
-     * @param string $tableName
-     * @return array
-     */
-    private function getConstraintForTable($tableName)
-    {
-        // Note the PostgreSQL `like` operator is case sensitive
-        $constraints = $this->preparedQuery(
-            "
-            SELECT conname
-            FROM pg_catalog.pg_constraint r
-            INNER JOIN pg_catalog.pg_namespace n
-              ON r.connamespace = n.oid
-            WHERE r.contype = 'c' AND conname like ? AND n.nspname = ?
-            ORDER BY 1;",
-            array($tableName . '_%', $this->database->currentSchema())
-        )->column('conname');
-
-        return $constraints;
-    }
-
     /**
      * A function to return the field names and datatypes for the particular table
      *

composer.json

@@ -15,12 +15,11 @@
         }
     ],
     "require": {
-        "silverstripe/framework": "^4.10",
+        "silverstripe/framework": "^4",
         "silverstripe/vendor-plugin": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^5.7"
-        "squizlabs/php_codesniffer": "^3"
     },
     "autoload": {
         "psr-4": {

docs/en/README.md

@@ -1,5 +1,86 @@
 # PostgreSQL Database Module
 
+SilverStripe now has tentative support for PostgreSQL ('Postgres').
+
+## Requirements
+
+SilverStripe 2.4.0 or greater. (PostgreSQL support is NOT available 
+in 2.3.).
+
+SilverStripe supports Postgres versions 8.3.x, 8.4.x and onwards. 
+Postgres 8.3.0 launched in February 2008, so SilverStripe has a fairly 
+modern but not bleeding edge Postgres version requirement.
+
+Support for 8.2.x is theoretically possible if you're willing to manually 
+install T-search. 8.2.x has not been tested either, so there may be other 
+compatibility issues. The EnterpriseDB versions of Postgres also work, if 
+you'd prefer a tuned version.
+
+## Installation
+
+You have three options to install PostgreSQL support with SilverStripe. 
+
+### Option 1 - Installer
+
+The first option is to use the installer. However, this is currently only 
+supported since SilverStripe 2.4.0 beta2 (or using the daily builds).
+
+1. Set up SilverStripe somewhere where you can start the installer - you 
+should only see one database “MySQL” to install with.
+2. Download a copy of the “postgresql” module from here: 
+http://silverstripe.org/postgresql-module
+3. Extract the archive you downloaded. Rename the directory from 
+“postgresql-trunk-rxxxx” to “postgresql” and copy it into the SilverStripe 
+directory you just set up
+4. Open the installer once again, and a new option “PostgreSQL” should appear. 
+You can now proceed through the installation without having to change any code.
+
+### Option 2 - Manual
+
+The second option is to setup PostgreSQL support manually. This can be achieved 
+by following these instructions:
+
+1. Set up a fresh working copy of SilverStripe
+2. Download a copy of the “postgresql” module from here: http://silverstripe.org/postgresql-module
+3. Extract the archive you downloaded. Rename the directory from 
+“postgresql-trunk-rxxxx” to “postgresql” and copy it into the SilverStripe 
+directory you just set up.
+4. Open up your mysite/_config.php file and add (or update) the $databaseConfig 
+array like so:
+
+> $databaseConfig = array(
+>	'type' => 'PostgreSQLDatabase',
+>	'server' => '[server address e.g. localhost]',
+>	'username' => 'postgres',
+>	'password' => 'mypassword',
+>	'database' => 'SS_mysite'
+> );
+
+Finally, visit dev/build so that SilverStripe can build the database schema and 
+default records.
+
+### Option 3 - Environment file
+
+Finally, the third option is to change your environment to point to 
+PostgreSQLDatabase as a database class. Do this if you're currently using an
+ _ss_environment.php file.
+
+1. Download a copy of the “postgresql” module from here: http://silverstripe.org/postgresql-module
+2. Extract the archive you downloaded. Rename the directory from 
+postgresql-trunk-rxxxx” to “postgresql” and copy it into your SS directory
+3. Add the following to your existing _ss_environment.php file:
+
+> define('SS_DATABASE_CLASS', 'PostgreSQLDatabase');
+
+Last steps:
+
+1. Ensure your SS_DATABASE_USERNAME and SS_DATABASE_PASSWORD defines in 
+_ss_environment.php are correct to the PostgreSQL server.
+2. Ensure that your mysite/_config.php file has a database name defined, such 
+as “SS_mysite”.
+3. Visit dev/build so that SilverStripe can build the database schema and 
+default records
+
 ## Features
 
 Here is a quick list of what's different in the Postgres module (a full 
@@ -220,3 +301,21 @@ connection, no matter what you entered in the "Database Name" field during
 installation.
 
 Make sure you have set the "search_path" correct for your database user. 
+
+## Known Issues
+
+All column and table names must be double-quoted.  PostgreSQL automatically 
+lower-cases columns, and your queries will fail if you don't.
+
+Ts_vector columns are not automatically detected by the built-in search filters.  
+That means if you're doing a search through the CMS on a ModelAdmin object, it 
+will use LIKE queries which are very slow.  
+
+If you're writing your own front-end search system, you can specify the columns 
+to use for search purposes, and you get the full benefits of T-Search.
+
+If you are using unsupported modules, there may be instances of MySQL-specific 
+SQL queries which will need to be made database-agnostic where possible.
+
+
+

phpcs.xml.dist

@@ -2,9 +2,6 @@
 <ruleset name="SilverStripe">
 	<description>CodeSniffer ruleset for SilverStripe coding conventions.</description>
 
-	<file>code</file>
-	<file>tests</file>
-
 	<!-- base rules are PSR-2 -->
 	<rule ref="PSR2" >
 		<!-- Current exclusions -->

phpunit.xml.dist

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <phpunit bootstrap="vendor/silverstripe/framework/tests/bootstrap.php" colors="true">
 
 	<testsuite name="Default">

tests/PostgreSQLDatabaseTest.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace SilverStripe\PostgreSQL\Tests;
+
+use Exception;
+use Page;
+use SilverStripe\Dev\SapphireTest;
+use SilverStripe\ORM\DataObject;
+use SilverStripe\ORM\DB;
+use SilverStripe\PostgreSQL\PostgreSQLDatabase;
+
+/**
+ * @package postgresql
+ * @subpackage tests
+ */
+class PostgreSQLDatabaseTest extends SapphireTest
+{
+    protected $usesDatabase = true;
+
+    public function testReadOnlyTransaction()
+    {
+        if (DB::get_conn()->supportsTransactions() == true
+            && DB::get_conn() instanceof PostgreSQLDatabase
+        ) {
+            $page = new Page();
+            $page->Title = 'Read only success';
+            $page->write();
+
+            DB::get_conn()->transactionStart('READ ONLY');
+
+            try {
+                $page = new Page();
+                $page->Title = 'Read only page failed';
+                $page->write();
+            } catch (Exception $e) {
+                //could not write this record
+                //We need to do a rollback or a commit otherwise we'll get error messages
+                DB::get_conn()->transactionRollback();
+            }
+
+            DB::get_conn()->transactionEnd();
+
+            DataObject::flush_and_destroy_cache();
+
+            $success = DataObject::get('Page', "\"Title\"='Read only success'");
+            $fail = DataObject::get('Page', "\"Title\"='Read only page failed'");
+
+            //This page should be in the system
+            $this->assertTrue(is_object($success) && $success->exists());
+
+            //This page should NOT exist, we had 'read only' permissions
+            $this->assertFalse(is_object($fail) && $fail->exists());
+        } else {
+            $this->markTestSkipped('Current database is not PostgreSQL');
+        }
+    }
+}

tests/PostgreSQLSchemaManagerTest.php

@@ -1,138 +0,0 @@
-<?php
-
-namespace SilverStripe\PostgreSQL\Tests;
-
-use SilverStripe\Core\ClassInfo;
-use SilverStripe\Dev\SapphireTest;
-use SilverStripe\ORM\Connect\Database;
-use SilverStripe\ORM\Connect\DatabaseException;
-use SilverStripe\ORM\DB;
-use SilverStripe\PostgreSQL\PostgreSQLConnector;
-use SilverStripe\PostgreSQL\PostgreSQLSchemaManager;
-
-class PostgreSQLSchemaManagerTest extends SapphireTest
-{
-
-    protected $usesTransactions = false;
-
-    public function testAlterTable()
-    {
-        try {
-            /** @var PostgreSQLSchemaManager $dbSchema */
-            $dbSchema = DB::get_schema();
-            $dbSchema->quiet();
-
-            $this->createSS3Table();
-
-            try {
-                DB::query('INSERT INTO "ClassNamesUpgrade" ("ClassName") VALUES (\'App\MySite\FooBar\')');
-                $this->assertFalse(true, 'SS3 Constaint should have blocked the previous insert.');
-            } catch (DatabaseException $ex) {
-            }
-
-            $dbSchema->schemaUpdate(function () use ($dbSchema) {
-                $dbSchema->requireTable(
-                    'ClassNamesUpgrade',
-                    [
-                        'ID' => 'PrimaryKey',
-                        'ClassName' => 'Enum(array("App\\\\MySite\\\\FooBar"))',
-                    ]
-                );
-            });
-
-            DB::query('INSERT INTO "ClassNamesUpgrade" ("ClassName") VALUES (\'App\MySite\FooBar\')');
-            $count = DB::query('SELECT count(*) FROM "ClassNamesUpgrade" WHERE "ClassName" = \'App\MySite\FooBar\'')
-                ->value();
-
-            $this->assertEquals(1, $count);
-        } finally {
-            DB::query('DROP TABLE IF EXISTS "ClassNamesUpgrade"');
-            DB::query('DROP SEQUENCE IF EXISTS "ClassNamesUpgrade_ID_seq"');
-        }
-    }
-
-    private function createSS3Table()
-    {
-        DB::query(<<<SQL
-CREATE SEQUENCE "ClassNamesUpgrade_ID_seq" start 1 increment 1;       
-CREATE TABLE "ClassNamesUpgrade"
-(
-  "ID" bigint NOT NULL DEFAULT nextval('"ClassNamesUpgrade_ID_seq"'::regclass),
-  "ClassName" character varying(255) DEFAULT 'ClassNamesUpgrade'::character varying,
-  CONSTRAINT "ClassNamesUpgrade_pkey" PRIMARY KEY ("ID"),
-  CONSTRAINT "ClassNamesUpgrade_ClassName_check" CHECK ("ClassName"::text = ANY (ARRAY['FooBar'::character varying::text]))
-)
-WITH (
-  OIDS=FALSE
-);
-SQL
-        );
-    }
-
-    public function testRenameTable()
-    {
-        try {
-            /** @var PostgreSQLSchemaManager $dbSchema */
-            $dbSchema = DB::get_schema();
-            $dbSchema->quiet();
-
-            $this->createSS3VersionedTable();
-
-            $this->assertConstraintCount(1, 'ClassNamesUpgrade_versioned_ClassName_check');
-
-            $dbSchema->schemaUpdate(function () use ($dbSchema) {
-                $dbSchema->renameTable(
-                    'ClassNamesUpgrade_versioned',
-                    'ClassNamesUpgrade_Versioned'
-                );
-            });
-
-            $this->assertTableCount(0, 'ClassNamesUpgrade_versioned');
-            $this->assertTableCount(1, 'ClassNamesUpgrade_Versioned');
-            $this->assertConstraintCount(0, 'ClassNamesUpgrade_versioned_ClassName_check');
-            $this->assertConstraintCount(1, 'ClassNamesUpgrade_Versioned_ClassName_check');
-        } finally {
-            DB::query('DROP TABLE IF EXISTS "ClassNamesUpgrade_Versioned"');
-            DB::query('DROP TABLE IF EXISTS "ClassNamesUpgrade_versioned"');
-            DB::query('DROP SEQUENCE IF EXISTS "ClassNamesUpgrade_versioned_ID_seq"');
-        }
-    }
-
-    private function assertConstraintCount($expected, $constraintName)
-    {
-        $count = DB::prepared_query(
-            'SELECT count(*) FROM pg_catalog.pg_constraint WHERE conname like ?',
-            [$constraintName]
-        )->value();
-
-        $this->assertEquals($expected, $count);
-    }
-
-    private function assertTableCount($expected, $tableName)
-    {
-        $count = DB::prepared_query(
-            'SELECT count(*) FROM pg_catalog.pg_tables WHERE "tablename" like ?',
-            [$tableName]
-        )->value();
-
-        $this->assertEquals($expected, $count);
-    }
-
-    private function createSS3VersionedTable()
-    {
-        DB::query(<<<SQL
-CREATE SEQUENCE "ClassNamesUpgrade_versioned_ID_seq" start 1 increment 1;       
-CREATE TABLE "ClassNamesUpgrade_versioned"
-(
-  "ID" bigint NOT NULL DEFAULT nextval('"ClassNamesUpgrade_versioned_ID_seq"'::regclass),
-  "ClassName" character varying(255) DEFAULT 'ClassNamesUpgrade'::character varying,
-  CONSTRAINT "ClassNamesUpgrade_pkey" PRIMARY KEY ("ID"),
-  CONSTRAINT "ClassNamesUpgrade_versioned_ClassName_check" CHECK ("ClassName"::text = ANY (ARRAY['FooBar'::character varying::text]))
-)
-WITH (
-  OIDS=FALSE
-);
-SQL
-        );
-    }
-}