class.arStatement.php

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<?php
 
abstract class arStatement
{
    protected string $table_name_as = '';
 
    abstract public function asSQLStatement(ActiveRecord $activeRecord, ilDBInterface $db): string;
 
    public function getTableNameAs(): string
    {
        return $this->table_name_as;
    }
 
    public function setTableNameAs(string $table_name_as): void
    {
        $this->table_name_as = $table_name_as;
    }
 
    protected function wrapFields(array $fields, ilDBInterface $db): array
    {
        $wrapped_fields = [];
 
        foreach ($fields as $field) {
            $wrapped_fields[] = $this->wrapField($field, $db);
        }
 
        return $wrapped_fields;
    }
 
    protected function wrapField(string $field, ilDBInterface $db): string
    {
        $slitted = explode('.', $field);
 
        if (count($slitted) === 1 && $slitted[0] === '*') {
            return $field;
        }
 
        if (count($slitted) === 2) {
            return $db->quoteIdentifier($slitted[0]) . '.' . $db->quoteIdentifier($slitted[1]);
        }
 
        return $db->quoteIdentifier($field);
    }
}