AttributeWhereClause.php

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<?php

namespace Elgg\Database\Clauses;

use Elgg\Database\QueryBuilder;

class AttributeWhereClause extends WhereClause {

    public $names;

    public $comparison = '=';

    public $values;

    public $value_type = ELGG_VALUE_STRING;

    public $case_sensitive;

    public function prepare(QueryBuilder $qb, $table_alias = null) {
        $alias = function ($column) use ($table_alias) {
            return $table_alias ? "{$table_alias}.{$column}" : $column;
        };

        $wheres = [];
        $wheres[] = parent::prepare($qb, $table_alias);

        foreach ((array) $this->names as $name) {
            $wheres[] = $qb->compare($alias($name), $this->comparison, $this->values, $this->value_type, $this->case_sensitive);
        }

        return $qb->merge($wheres);
    }
}