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Image caption
30 January 2010 at 10:11am
Is there any reasonably easy way for the end user to add a caption to an image inserted through the CMS?
Thanks.
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Re: Image caption
31 January 2010 at 7:17am Last edited: 31 January 2010 7:19am
Hi!
I’m not sure if it is good practice, I’d prefer to extend Image class instead of this, but I didn’t arrive to. This MyImage class allows for a caption that you can switch on or off in templates with <% if ShowImagesTitle %><p>$Legend</p><% end_if %>:
mysite/code/MyImage.php
<?php
/*
** You haven't been able to extend directly Image and add the boolean field
*/
class MyImage extends DataObject {
static $db = array (
'ShowImagesTitle' => 'Boolean',
'Legend' => 'Text'
);
static $has_one = array (
'Image' => 'Image',
'Page' => 'Page'
);
public function getCMSFields_forPopup() {
$myImageField = new ImageField('Image');
$myImageField->setAllowedExtensions(array('jpg','gif','png'));
return new FieldSet(
$myImageField,
new TextField('Legend'),
new CheckboxField('ShowImagesTitle', 'Show legend')
);
}
}
?>Then in your Page class, or a more specific one:
mysite/code/Page.php
// Pages can have many images (see MyImage for the other side of the relation)
public static $has_many = array(
'Images' => 'MyImage'
);Then later in getCMSFields() you can use, or not, ImageDataObjectManager (included in DOM module):
// This will add a checkbox on the CMS to switch the legend (Title) on images (function later)
// $fields->addFieldToTab('Root.Content.Images', new CheckboxField('ShowImagesTitle', 'Show Title as legend.'));
$fields->addFieldToTab('Root.Content.Images', new ImageDataObjectManager(
$this,
'Images',
'MyImage',
'Image',
array(
'Legend' => 'Legend',
'ShowImagesTitle' => 'Show'
),
'getCMSFields_forPopup'
)
);Hope it helps (and that I get corrected with a better way of doing it),
Juan
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