MINOR Do not assume SiteTree's table will always be call SiteTree.

code/Controllers/CMSMain.php

@@ -1854,8 +1854,9 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
         // DataObject::fieldExists only checks the current class, not the hierarchy
         // This allows the CMS to set the correct sort value
         if ($newItem->castingHelper('Sort')) {
+            $table = DataObject::singleton(SiteTree::class)->baseTable();
             $maxSort = DB::prepared_query(
-                'SELECT MAX("Sort") FROM "SiteTree" WHERE "ParentID" = ?',
+                "SELECT MAX(\"Sort\") FROM \"$table\" WHERE \"ParentID\" = ?",
                 array($parentID)
             )->value();
             $newItem->Sort = (int)$maxSort + 1;
@@ -1911,8 +1912,10 @@ class CMSMain extends LeftAndMain implements CurrentPageIdentifier, PermissionPr
         }
 
         /** @var SiteTree $record */
+        $table = DataObject::singleton(SiteTree::class)->baseTable();
+        $liveTable = DataObject::singleton(SiteTree::class)->stageTable($table, Versioned::LIVE);
         $record = Versioned::get_one_by_stage(SiteTree::class, Versioned::LIVE, array(
-            '"SiteTree_Live"."ID"' => $id
+            "\"$liveTable\".\"ID\"" => $id
         ));
 
         // a user can restore a page without publication rights, as it just adds a new draft state

code/Controllers/CMSSiteTreeFilter_ChangedPages.php

@@ -3,6 +3,7 @@
 namespace SilverStripe\CMS\Controllers;
 
 use SilverStripe\CMS\Model\SiteTree;
+use SilverStripe\ORM\DataObject;
 use SilverStripe\Versioned\Versioned;
 
 /**
@@ -18,10 +19,12 @@ class CMSSiteTreeFilter_ChangedPages extends CMSSiteTreeFilter
 
     public function getFilteredPages()
     {
+        $table = DataObject::singleton(SiteTree::class)->baseTable();
+        $liveTable = DataObject::singleton(SiteTree::class)->stageTable($table, Versioned::LIVE);
         $pages = Versioned::get_by_stage(SiteTree::class, Versioned::DRAFT);
         $pages = $this->applyDefaultFilters($pages)
-            ->leftJoin('SiteTree_Live', '"SiteTree_Live"."ID" = "SiteTree"."ID"')
+            ->leftJoin($liveTable, "\"$liveTable\".\"ID\" = \"$table\".\"ID\"")
-            ->where('"SiteTree"."Version" <> "SiteTree_Live"."Version"');
+            ->where("\"$table\".\"Version\" <> \"$liveTable\".\"Version\"");
         return $pages;
     }
 }

code/Controllers/ModelAsController.php

@@ -135,9 +135,10 @@ class ModelAsController extends Controller implements NestedController
         }
 
         // Select child page
-        $conditions = array('"SiteTree"."URLSegment"' => $URLSegment);
+        $tableName = DataObject::singleton(SiteTree::class)->baseTable();
+        $conditions = [sprintf('"%s"."URLSegment"', $tableName) => $URLSegment];
         if (SiteTree::config()->get('nested_urls')) {
-            $conditions[] = array('"SiteTree"."ParentID"' => 0);
+            $conditions[] = [sprintf('"%s"."ParentID"', $tableName) => 0];
         }
         /** @var SiteTree $sitetree */
         $sitetree = DataObject::get_one(SiteTree::class, $conditions);

code/Model/SiteTree.php

@@ -395,6 +395,11 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
      */
     public static function get_by_link($link, $cache = true)
     {
+        // Compute the column names with dynamic a dynamic table name
+        $tableName = DataObject::singleton(self::class)->baseTable();
+        $urlSegmentExpr = sprintf('"%s"."URLSegment"', $tableName);
+        $parentIDExpr = sprintf('"%s"."ParentID"', $tableName);
+
         if (trim($link, '/')) {
             $link = trim(Director::makeRelative($link), '/');
         } else {
@@ -405,9 +410,9 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
 
         // Grab the initial root level page to traverse down from.
         $URLSegment = array_shift($parts);
-        $conditions = array('"SiteTree"."URLSegment"' => rawurlencode($URLSegment));
+        $conditions = array($urlSegmentExpr => rawurlencode($URLSegment));
         if (self::config()->get('nested_urls')) {
-            $conditions[] = array('"SiteTree"."ParentID"' => 0);
+            $conditions[] = array($parentIDExpr => 0);
         }
         /** @var SiteTree $sitetree */
         $sitetree = DataObject::get_one(self::class, $conditions, $cache);
@@ -416,7 +421,7 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
         if (!$sitetree
             && self::config()->get('nested_urls')
             && $sitetree = DataObject::get_one(self::class, array(
-                '"SiteTree"."URLSegment"' => $URLSegment
+                $urlSegmentExpr => $URLSegment
             ), $cache)
         ) {
             return $sitetree;
@@ -449,8 +454,8 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
             $next = DataObject::get_one(
                 self::class,
                 array(
-                    '"SiteTree"."URLSegment"' => $segment,
+                    $urlSegmentExpr => $segment,
-                    '"SiteTree"."ParentID"' => $sitetree->ID
+                    $parentIDExpr => $sitetree->ID
                 ),
                 $cache
             );
@@ -659,9 +664,10 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
     {
         $oldReadingMode = Versioned::get_reading_mode();
         Versioned::set_stage(Versioned::LIVE);
+        $tablename = $this->baseTable();
         /** @var SiteTree $live */
         $live = Versioned::get_one_by_stage(self::class, Versioned::LIVE, array(
-            '"SiteTree"."ID"' => $this->ID
+            "\"$tablename\".\"ID\"" => $this->ID
         ));
         if ($live) {
             $link = $live->AbsoluteLink();
@@ -1500,7 +1506,8 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
                 DB::alteration_message('Home page created', 'created');
             }
 
-            if (DB::query("SELECT COUNT(*) FROM \"SiteTree\"")->value() == 1) {
+            $tablename = $this->baseTable();
+            if (DB::query("SELECT COUNT(*) FROM \"$tablename\"")->value() == 1) {
                 $aboutus = new Page();
                 $aboutus->Title = _t(__CLASS__.'.DEFAULTABOUTTITLE', 'About Us');
                 $aboutus->Content = _t(
@@ -1535,8 +1542,9 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
         // If Sort hasn't been set, make this page come after it's siblings
         if (!$this->Sort) {
             $parentID = ($this->ParentID) ? $this->ParentID : 0;
+            $tablename = $this->baseTable();
             $this->Sort = DB::prepared_query(
-                "SELECT MAX(\"Sort\") + 1 FROM \"SiteTree\" WHERE \"ParentID\" = ?",
+                "SELECT MAX(\"Sort\") + 1 FROM \"$tablename\" WHERE \"ParentID\" = ?",
                 array($parentID)
             )->value();
         }
@@ -1768,9 +1776,10 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
      */
     public function getStageURLSegment()
     {
+        $tablename = $this->baseTable();
         /** @var SiteTree $stageRecord */
         $stageRecord = Versioned::get_one_by_stage(self::class, Versioned::DRAFT, [
-            '"SiteTree"."ID"' => $this->ID
+            "\"$tablename\".\"ID\"" => $this->ID
         ]);
         return ($stageRecord) ? $stageRecord->URLSegment : null;
     }
@@ -1782,9 +1791,10 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
      */
     public function getLiveURLSegment()
     {
+        $tablename = $this->baseTable();
         /** @var SiteTree $liveRecord */
         $liveRecord = Versioned::get_one_by_stage(self::class, Versioned::LIVE, [
-            '"SiteTree"."ID"' => $this->ID
+            "\"$tablename\".\"ID\"" => $this->ID
         ]);
         return ($liveRecord) ? $liveRecord->URLSegment : null;
     }
@@ -2459,12 +2469,15 @@ class SiteTree extends DataObject implements PermissionProvider, i18nEntityProvi
     public function onAfterPublish()
     {
         // Force live sort order to match stage sort order
-        DB::prepared_query(
+        $sql = sprintf(
-            'UPDATE "SiteTree_Live"
+            'UPDATE "%2$s"
-			SET "Sort" = (SELECT "SiteTree"."Sort" FROM "SiteTree" WHERE "SiteTree_Live"."ID" = "SiteTree"."ID")
+			SET "Sort" = (SELECT "%1$s"."Sort" FROM "%1$s" WHERE "%2$s"."ID" = "%1$s"."ID")
-			WHERE EXISTS (SELECT "SiteTree"."Sort" FROM "SiteTree" WHERE "SiteTree_Live"."ID" = "SiteTree"."ID") AND "ParentID" = ?',
+			WHERE EXISTS (SELECT "%1$s"."Sort" FROM "%1$s" WHERE "%2$s"."ID" = "%1$s"."ID") AND "ParentID" = ?',
-            array($this->ParentID)
+            $this->baseTable(),
+            $this->stageTable($this->baseTable(), Versioned::LIVE)
         );
+
+        DB::prepared_query($sql, [$this->ParentID]);
     }
 
     /**

code/Reports/BrokenLinksReport.php

@@ -9,6 +9,7 @@ use SilverStripe\CMS\Model\VirtualPage;
 use SilverStripe\Control\Controller;
 use SilverStripe\Forms\DropdownField;
 use SilverStripe\Forms\FieldList;
+use SilverStripe\Subsites\Model\Subsite;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\DataObject;
 use SilverStripe\Reports\Report;
@@ -27,6 +28,8 @@ class BrokenLinksReport extends Report
 
     public function sourceRecords($params, $sort, $limit)
     {
+        $sitetreeTbl = DataObject::singleton(SiteTree::class)->baseTable();
+
         $join = '';
         $sortBrokenReason = false;
         if ($sort) {
@@ -36,15 +39,21 @@ class BrokenLinksReport extends Report
 
             if ($field === 'AbsoluteLink') {
                 $sort = 'URLSegment ' . $direction;
-            } elseif ($field === 'Subsite.Title') {
+            } elseif ($field == 'Subsite.Title') {
-                $join = 'LEFT JOIN "Subsite" ON "Subsite"."ID" = "SiteTree"."SubsiteID"';
+                $subSiteTbl = DataObject::singleton(Subsite::class)->baseTable();
-            } elseif ($field === 'BrokenReason') {
+                $join = sprintf(
+                    'LEFT JOIN "%s" ON "%s"."ID" = "%s"."SubsiteID"',
+                    $subSiteTbl,
+                    $subSiteTbl,
+                    $sitetreeTbl
+                );
+            } elseif ($field == 'BrokenReason') {
                 $sortBrokenReason = true;
                 $sort = '';
             }
         }
         $brokenFilter = [
-            '"SiteTree"."HasBrokenLink" = ? OR "SiteTree"."HasBrokenFile" = ?' => [true, true]
+            sprintf('"%s"."HasBrokenLink" = ? OR "%s"."HasBrokenFile" = ?', $sitetreeTbl, $sitetreeTbl) => [true, true]
         ];
         $isLive = !isset($params['CheckSite']) || $params['CheckSite'] === 'Published';
         if ($isLive) {

code/Reports/RecentlyEditedReport.php

@@ -27,10 +27,11 @@ class RecentlyEditedReport extends Report
 
     public function sourceRecords($params = null)
     {
+        $tableName = DataObject::singleton(SiteTree::class)->baseTable();
         $threshold = strtotime('-14 days', DBDatetime::now()->getTimestamp());
         return SiteTree::get()
             ->filter('LastEdited:GreaterThan', date("Y-m-d H:i:s", $threshold))
-            ->sort("\"SiteTree\".\"LastEdited\" DESC");
+            ->sort("\"$tableName\".\"LastEdited\" DESC");
     }
 
     public function columns()

code/Tasks/MigrateSiteTreeLinkingTask.php

@@ -5,6 +5,7 @@ namespace SilverStripe\CMS\Tasks;
 use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Dev\BuildTask;
 use SilverStripe\Dev\Debug;
+use SilverStripe\ORM\DataObject;
 use SilverStripe\ORM\DB;
 use SilverStripe\Versioned\Versioned;
 
@@ -35,11 +36,13 @@ class MigrateSiteTreeLinkingTask extends BuildTask
         Versioned::withVersionedMode(function () use (&$pages) {
             Versioned::set_stage(Versioned::DRAFT);
 
+            $sitetreeTbl = DataObject::singleton(SiteTree::class)->baseTable();
+
             /** @var SiteTree[] $linkedPages */
             $linkedPages = SiteTree::get()
                 ->innerJoin(
                     'SiteTree_LinkTracking',
-                    '"SiteTree_LinkTracking"."SiteTreeID" = "SiteTree"."ID"'
+                    "\"SiteTree_LinkTracking\".\"SiteTreeID\" = \"$sitetreeTbl\".\"ID\""
                 );
             foreach ($linkedPages as $page) {
                 // Command page to update symlink tracking

code/Tasks/SiteTreeMaintenanceTask.php

@@ -2,6 +2,7 @@
 
 namespace SilverStripe\CMS\Tasks;
 
+use SilverStripe\CMS\Model\SiteTree;
 use SilverStripe\Control\Controller;
 use SilverStripe\ORM\DB;
 use SilverStripe\ORM\DataObject;
@@ -14,8 +15,9 @@ class SiteTreeMaintenanceTask extends Controller
 
     public function makelinksunique()
     {
-        $badURLs = "'" . implode("', '", DB::query("SELECT URLSegment, count(*) FROM SiteTree GROUP BY URLSegment HAVING count(*) > 1")->column()) . "'";
+        $table = DataObject::singleton(SiteTree::class)->baseTable();
-        $pages = DataObject::get("SilverStripe\\CMS\\Model\\SiteTree", "\"SiteTree\".\"URLSegment\" IN ($badURLs)");
+        $badURLs = "'" . implode("', '", DB::query("SELECT \"URLSegment\", count(*) FROM \"$table\" GROUP BY \"URLSegment\" HAVING count(*) > 1")->column()) . "'";
+        $pages = DataObject::get(SiteTree::class, "\"$table\".\"URLSegment\" IN ($badURLs)");
 
         foreach ($pages as $page) {
             echo "<li>$page->Title: ";