62 lines
1.9 KiB
PHP
62 lines
1.9 KiB
PHP
<?php
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/**
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* UserForms Column Clean Task
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*
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* Column clean up tasks for Userforms
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*
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* @package userforms
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*/
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class UserFormsColumnCleanTask extends MigrationTask
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{
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protected $title = "UserForms EditableFormField Column Clean task";
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protected $description = "Removes unused columns from EditableFormField for MySQL databases;";
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protected $tables = array('EditableFormField');
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protected $keepColumns = array('ID');
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/**
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* Publish the existing forms.
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*
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*/
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public function run($request)
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{
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foreach ($this->tables as $db) {
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$obj = new $db();
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$columns = $obj->database_fields($db);
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$query = "SHOW COLUMNS FROM $db";
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$liveColumns = DB::query($query)->column();
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$backedUp = 0;
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$query = "SHOW TABLES LIKE 'Backup_$db'";
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$tableExists = DB::query($query)->value();
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if ($tableExists != null) {
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echo "Tasks run already on $db exiting";
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return;
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}
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$backedUp = 0;
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foreach ($liveColumns as $index => $column) {
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if ($backedUp == 0) {
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echo "Backing up $db <br />";
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echo "Creating Backup_$db <br />";
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// backup table
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$query = "CREATE TABLE Backup_$db LIKE $db";
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DB::query($query);
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echo "Populating Backup_$db <br />";
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$query = "INSERT Backup_$db SELECT * FROM $db";
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DB::query($query);
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$backedUp = 1;
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}
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if (!isset($columns[$column]) && !in_array($column, $this->keepColumns)) {
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echo "Dropping $column from $db <br />";
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$query = "ALTER TABLE $db DROP COLUMN $column";
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DB::query($query);
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}
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}
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}
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}
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}
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