XML Editing Using PHP SimpleXML - Test case with Propel's schema.xml

schemaedit.php

<?php

try {
    $projectDir = '/yourprojectfolder';
    $appName = 'MyApp';

    $schemaPath = $projectDir."/app/config/schema.xml";
    
    if (!is_file($schemaPath)) {
        throw new Exception("File $schemaPath gagal dibuka, proses reverse gagal..");
    }

    $schemaDesignObj = simplexml_load_file($schemaPath);
    
    // Skip shit
    // Let's assume that you hydrated a new schema from dbo, and no longer need
    // to access them from the application either read or write
    $skipSchemas = array("dbo", "sales");  
    $skipTables = array("log_", "trigger_"); //skip machine purposed tables
    $skipColumns = array("updated_by"); //skip automated columns

    if (!$schemaDesignObj) {
        throw new Exception("File $schemaPath gagal dimuat dalam XML Object");
    }
    // Propel doesn't add this, so let's do the job
    $schemaDesignObj->addAttribute("namespace", $appName."Model" );
    
    echo "Jumlah tabel sebelumnya : ".sizeof($schemaDesignObj->table)."<br>\r\n";

    $tablesToRemove = "";
    $columnsToRemove = "";

    foreach ($schemaDesignObj->table as $t) {
        
        $schemaName = $t['schema'] == "" ? "dbo" : $t['schema'];
        $tableName = $t['name'];

        if (contains($schemaName, $skipSchemas)) {
            echo "SKIPSCHEMA -- $schemaName<br>\r\n";
            $tablesToRemove[] = $t;
            continue;
        }

        if (contains($tableName, $skipTables)) {
            echo "SKIPTABLE -- $tableName<br>\r\n";
            $tablesToRemove[] = $t;
            continue;
        }
        
        echo "Schema: ". $schemaName."; Table: ".$tableName."<br>\r\n";
        
        foreach ($t->column as $c) {
            
            $columnName = $c['name'];

            if (contains($columnName, $skipColumns)) {
                echo "SKIPCOLUMN -- $columnName<br>\r\n";
                
                $columnsToRemove[] = $c;
                continue;
            }

            echo "&nbsp;&nbsp;&nbsp;Column: ". $c['name']."<br>\r\n";
        }

    }
    
    // Remove the tables 
    foreach ($tablesToRemove as $t) {
        unset ($t[0]);
    }
    
    // Remove the columns
    foreach ($columnsToRemove as $c) {
        unset ($c[0]);
    }


    echo "Jumlah tabel sesudahnya : ".sizeof($schemaDesignObj->table)."<br>rn";;

    $schemaDesignStr = $schemaDesignObj->asXml();

    $target = $projectDir."/app/config/schema-design.xml";
    
    $fp = fopen($target, 'w');
    if (!$fp) {
        throw new Exception("File $target gagal dibuka");
    }
    if (!fwrite($fp, $schemaDesignStr)) {
        throw new Exception("File $target gagal ditulisi");
    }

    fclose($fp);
    echo "<br>rnFile $target berhasil ditulis tanpa error.";

} catch (Exception $e) {

    $status = 2;
    $errMsg = $e->getMessage();

}

?>