小编Ger*_*ril的帖子

请有人告诉我如何在Symfony 2中设置onDelete:SetNull？这是一个例子:

oneToOne:
    Company:
        targetEntity: Company
        inversedBy: id
        joinColumn:
            name: id
            referencedColumnName: contact_person
            onDelete:  ??

谢谢.

我有一个关于jQuery的问题.如果用户在html中选择值为"0"的"Presmerovanie",则选择id为"typ",我想显示id为"pres"的div.这是代码:

<dl>
    <dt><label for="typ">Typ</label></dt>
    <dd>
    <select id="typ" size="1">
        <option value="1">Normálna</option>
        <option value="0">Presmerovanie</option>
    </select>
    </dd>
</dl>
<!-- Len ak je presmerovatelna -->
<div id="pres" style="display: none;">
    <dl>
        <dt><label for="presmerovat">Presmerovat na</label></dt>
        <dd>
        <select id="presmerovat" size="1">
            <option>Category 1</option>
            <option>Category 2</option>
        </select>
        </dd>
    </dl>
</div>
<!-- Koniec ak je presmerovatelna -->

可能吗？

我的html表单中有一些单选按钮,这里是代码:

slovenský <input type="radio" name="jazyk1" value="1" style="margin-right: 20px; margin-bottom: 15px;" />
?eský     <input type="radio" name="jazyk1" value="2" style="margin-right: 20px; margin-bottom: 15px;" />
anglický  <input type="radio" name="jazyk1" value="3" style="margin-right: 20px; margin-bottom: 15px;" />
<br />
nemecký   <input type="radio" name="jazyk1" value="4" style="margin-right: 20px; margin-bottom: 15px;" />
francúzsky<input type="radio" name="jazyk1" value="5" style="margin-right: 20px; margin-bottom: 15px;" />
španielsky<input type="radio" name="jazyk1" value="6" style="margin-right: 20px; margin-bottom: 15px;" />
<br />
taliansky <input type="radio" name="jazyk1" value="7" style="margin-right: 20px; margin-bottom: 15px;" />
ruský     <input type="radio" name="jazyk1" value="8" style="margin-right: 20px; …

嗨,我的数据库查询有问题.

$q = $this->db->query("SELECT * FROM (`knihy`) 
                      WHERE `stav` = 1 
                      AND (Autor1 LIKE '$vyraz' 
                      OR Autor2 LIKE '$vyraz' 
                      OR Autor3 LIKE '$vyraz' 
                      OR Autor4 LIKE '$vyraz') 
                      ORDER BY `id` desc LIMIT $limit OFFSET $offset ");

问题在于,当我搜索"lorem"的例子时,我在我的表中例如在行Autor1内容中:"lorem ipsum"将找不到任何内容.但如果我正在寻找lorem ipsum,那么就会找到那个领域.请问哪里有问题？