在Symfony 2表单中使用jquery-addresspicker

I'm using the plugin jquery-addresspicker with a Symfony 2 form to collect the selected longitude/latitude. Although the lng/lat fields are populated, after the form is submitted I get the following error:

SQLSTATE[23000]: Integrity constraint violation: 1048 Field lat cannot be empty (null)

Here is part of my form:

<label>Lat:</label> 
{{form_widget(form.lat, {attr: {'disabled':'disabled'}})}} <br/>
<label>Lng:</label> 
{{form_widget(form.lng, {attr: {'disabled':'disabled'}})}} <br/>

I just needed to remove the attribute in "desabled" defined in the form field