Model_Search.php

<?php
class Model_Search
{

    protected $_word;

    protected $_target = null;

    protected $_order = null;

    protected $_hash = null;

    protected $_min = null;

    protected $_max = null;

    public function __construct($word)
    {
        $filter = new Zend_Filter();
        $filter->addFilter(new Zend_Filter_StringTrim());
        $filter->addFilter(new Zend_Filter_StripNewlines());
        $filter->addFilter(new Zend_Filter_PregReplace('/\p{Z}+/', ' '));
        $this->_word = $filter->filter($word);
    }

    public function getWord()
    {
        return $this->_word;
    }

    public function setTarget($target)
    {
        $this->_target = $target;
        return $this;
    }

    public function setOrder($order)
    {
        $this->_order = $order;
        return $this;
    }

    public function setMinSize($size)
    {
        if (ctype_digit((string)$size)) {
            $this->_min = $size;
        }
        return $this;
    }

    public function setMaxSize($size)
    {
        if (ctype_digit((string)$size)) {
            $this->_max = $size;
        }
        return $this;
    }

    public function limitHash(array $hash)
    {
        $this->_hash = $hash;
        return $this;
    }

    public function run()
    {
        if (!is_null($this->_min) && !is_null($this->_max) && $this->_min > $this->_max) {
            throw new Exception('最小サイズが最大サイズより小さいです');
        }
        $db = new Database('search');
        $select = $db->select();

        // hogehoge

        return $select;
    }
}