| Info |
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FieldType Field Type identifier: |
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The image FieldType Image Field Type allows you to store an image file.
A variation service handles conversion of the original image into different formats and sizes through a set of pre-configured preconfigured named variations: large, small, medium, black & white thumbnail, etc...
Value object
The value property of an Image Field will return an \eZ\Publish\Core\FieldType\Image\Value object with the following properties:
| Property | Type | Example | Description |
|---|---|---|---|
id | string | 0/8/4/1/1480-1-eng-GB/image.png | The image's unique identifier. Usually the path, or a part of the path. To get the full path, use |
alternativeText | string | This is a piece of text | The alternative text, as entered in the fieldField's properties |
fileName | string | image.png | The original image's filename, without the path |
fileSize | int | 37931 | The original image's size, in bytes |
uri | string | var/ezdemo_site/storage/images/0/8/4/1/1480-1-eng-GB/image.png | The original image's URI |
imageId | string | 240-1480 | A special image ID, used by REST |
...
| Property | Type | Example | Description |
|---|---|---|---|
width | int | 640 | The variation's width in pixels |
height | int | 480 | The variation's height in pixels |
name | string | medium | The variation's identifier |
info | mixed | Extra info, such as EXIF data | |
fileSize | int | ||
mimeType | string | ||
fileName | string | ||
dirPath | string | ||
uri | string | The variation's uri | |
lastModified | DateTime | When the variation was last modified |
FieldType Field Type options
The Image FieldType Field Type supports one FieldDefinition option: the maximum size for the file.
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From 5.2 version, new images must be inputed input using the The keys |
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Children of the fieldValue node will list the general properties of the Field's original image (fileSize, fileName, inputUri, etc...), as well as variations. For each variation, an a uri is provided. Requested through REST, this resource will generate the variation if it doesn't exist yet, and list the variation details:
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The variation service, exponential.fieldType.ezimage.variation_service, can can be used to generate/get variations for a Field. It expects a VersionInfo, the Image Field and the variation name, as a string (large, medium, etc...)
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$variation = $imageVariationHandler->getVariation(
$imageField, $versionInfo, 'large'
);
echo $variation->uri; |
Manipulating image content
From PHP
As for any FieldtypeField Type, there are several ways to input content to a Field. For an Image, the quickest is to call setField() on the ContentStruct:
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In order to customize the Image's alternative texts, you must first get an Image\Value object, and set this property. For that, you can use the Image\Value::fromString() method , that accepts the path to a local file:
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$createStruct = $contentService->newContentCreateStruct(
$contentTypeService->loadContentType( 'image' ),
'eng-GB'
);
$imageField = \eZ\Publish\Core\FieldType\Image\Value::fromString( '/tmp/image.png' );
$imageField->alternativeText = 'My alternative text';
$createStruct->setField( 'image', $imageField ); |
You can also provide an a hash of Image\Value properties, either to setField(), or to the constructor:
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