protected function loadPage()
 {
     $table = new PhabricatorPaste();
     $conn_r = $table->establishConnection('r');
     $data = queryfx_all($conn_r, 'SELECT paste.* FROM %T paste %Q %Q %Q', $table->getTableName(), $this->buildWhereClause($conn_r), $this->buildOrderClause($conn_r), $this->buildLimitClause($conn_r));
     $pastes = $table->loadAllFromArray($data);
     return $pastes;
 }
 public function loadPage()
 {
     $table = new PhabricatorPaste();
     $conn_r = $table->establishConnection('r');
     $data = queryfx_all($conn_r, 'SELECT paste.* FROM %T paste %Q %Q %Q', $table->getTableName(), $this->buildWhereClause($conn_r), $this->buildOrderClause($conn_r), $this->buildLimitClause($conn_r));
     $pastes = $table->loadAllFromArray($data);
     if ($pastes && $this->needContent) {
         $file_phids = mpull($pastes, 'getFilePHID');
         $files = id(new PhabricatorFile())->loadAllWhere('phid IN (%Ls)', $file_phids);
         $files = mpull($files, null, 'getPHID');
         foreach ($pastes as $paste) {
             $file = idx($files, $paste->getFilePHID());
             if ($file) {
                 $paste->attachContent($file->loadFileData());
             } else {
                 $paste->attachContent('');
             }
         }
     }
     return $this->processResults($pastes);
 }
<?php

echo "Populating pastes with mail keys...\n";
$table = new PhabricatorPaste();
$table->openTransaction();
$conn_w = $table->establishConnection('w');
foreach (new LiskMigrationIterator($table) as $paste) {
    $id = $paste->getID();
    echo "P{$id}: ";
    if (!$paste->getMailKey()) {
        queryfx($conn_w, 'UPDATE %T SET mailKey = %s WHERE id = %d', $paste->getTableName(), Filesystem::readRandomCharacters(20), $id);
        echo "Generated Key\n";
    } else {
        echo "-\n";
    }
}
$table->saveTransaction();
echo "Done.\n";