Client-side form validation based on your Play model validation annotations.
http://play-jqvalidate.appspot.com/ is an example form using this module for client-side validation. The source code is available in the samples-and-tests
folder.
The play-jqvalidate
JavaScript components depend on the jQuery library.
Install the jqvalidate module from the modules repository:
play install jqvalidate
After installing the module, add the following to your application.conf
to enable it:
module.jqvalidate=${play.path}/modules/jqvalidate
The module JavaScript file is at lib/play-jqvalidate.min.js
. This script needs to be copied to your static directory or CDN and included anywhere on your page. The module JavaScript contains compressed copies of the jQuery Validation Plugin and the jQuery Metadata Plugin.
The jqvalid.form
tag is identical to the built-in Play form tag except it outputs some JavaScript that prepares the form to be validated by the jQuery validation plugin.
The jqvalid.field
tag is identical to the built-in Play field tag except it puts an extra property on the field, field.validationData
. You need to put this data in an HTML5 data attribute called data-validate
on your input
, select
, or textarea
element.
#{jqvalid.field 'task.details'}
<p>
<label>&{field.name}</label>
<input type="text" data-validate="${field.validationData}" id="${field.id}" name="${field.name}" value="${field.value}" class="${field.errorClass}">
<span class="error">${field.error}</span>
</p>
#{/}
The module currently supports the following annotations:
Required
Email
Min
Max
Range
MinSize
MaxSize
URL
@Entity
public class Task extends Model {
@Required @Range(max=10,min=1) public int priority;
@Required @Email public String authorEmail;
@Required @URL public String authorUrl;
@Required public String details;
}
#{jqvalid.form @Tasks.save()}
#{jqvalid.field 'task.details'}
<p>
<label>&{field.name}</label>
<input type="text" data-validate="${field.validationData}" id="${field.id}" name="${field.name}" value="${field.value}" class="${field.errorClass}">
<span class="error">${field.error}</span>
</p>
#{/}
#{jqvalid.field 'task.priority'}
<p>
<label>&{field.name}</label>
<input type="text" data-validate="${field.validationData}" id="${field.id}" name="${field.name}" value="${field.value}" class="${field.errorClass}">
<span class="error">${field.error}</span>
</p>
#{/}
#{jqvalid.field 'task.authorEmail'}
<p>
<label>&{field.name}</label>
<input type="text" data-validate="${field.validationData}" id="${field.id}" name="${field.name}" value="${field.value}" class="${field.errorClass}">
<span class="error">${field.error}</span>
</p>
#{/}
#{jqvalid.field 'task.authorUrl'}
<p>
<label>&{field.name}</label>
<input type="text" data-validate="${field.validationData}" id="${field.id}" name="${field.name}" value="${field.value}" class="${field.errorClass}">
<span class="error">${field.error}</span>
</p>
#{/}
<p>
<input type="submit" value='Create Task'>
</p>
#{/jqvalid.form}
You can view the example form live at http://play-jqvalidate.appspot.com/. The complete source code is available in this module's samples-and-tests
folder.