In yii2 Detail how can I add multiple images. I am able to add only 1 image for a single row.. I want multiple images to be displayed.
[
'label' => 'Class Labels',
'format' => 'image',
'value' =>'/web/images/transport_class/class8.jpg'.','.'/web/images/transport_class/class8.jpg',
],
As of now tried this not working... But if leave with single image it works. any solution for this problem??
Thanks..
'value' => function($model){
return Html::img('img1.png').Html::img('img2.png');
},
'format'=>'raw',
just use a function returning a string value, or a static helper. for images you could return:
'value' => \yii\helpers\Html::img(['#web/images/transport_class8.jpg'])
or
class MyHelper
{
public static function myImages($model)
{
$images = [];
if ($model->class1)
$images[] = Html::img('class1.jpg');
if ($model->class8)
$images[] = Html::img('class8.jpg');
return implode(' ', $images); // return your html code here
}
}
'value' => MyHelper::myImages($model)
I created a custom form from a buildForm function. In this form, I would like add an image field.
I can do that via this code :
$form['main']['image'] = array(
'#type' => 'text_format',
'#title' => t('image'),
'#default_value' => array(10),
);
I can upload and remove the image from my form. However, when I upload an image, I haven't this preview.
I mean, when I create a content via the Drupal UI. I can add a preconfigured "image" field. When I upload an image via this "image" field, I have a preview of the image.
And here, when I create the field element programmatically, I haven't a preview of the image when I upload her.
How use api Drupal for have the preview of the image when I upload her via my "image" field ?
So here is how I got my form to display the thumbnail image. What I basically did was take the code in ImageWidget::process, put it in a theme preprocessor and set the #theme property of the element to image_widget.
Your image element in your form class should look like this:
$form['profile_image'] = [
'#type' => 'managed_file',
'#title' => t('Profile Picture'),
'#upload_validators' => array(
'file_validate_extensions' => array('gif png jpg jpeg'),
'file_validate_size' => array(25600000),
),
**'#theme' => 'image_widget',**
**'#preview_image_style' => 'medium',**
'#upload_location' => 'public://profile-pictures',
'#required' => TRUE,
];
In your name_of_default_theme.theme file, you need the following:
function name_of_default_theme_preprocess_image_widget(&$variables) {
$element = $variables['element'];
$variables['attributes'] = array('class' => array('image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix'));
if (!empty($element['fids']['#value'])) {
$file = reset($element['#files']);
$element['file_' . $file->id()]['filename']['#suffix'] = ' <span class="file-size">(' . format_size($file->getSize()) . ')</span> ';
$file_variables = array(
'style_name' => $element['#preview_image_style'],
'uri' => $file->getFileUri(),
);
// Determine image dimensions.
if (isset($element['#value']['width']) && isset($element['#value']['height'])) {
$file_variables['width'] = $element['#value']['width'];
$file_variables['height'] = $element['#value']['height'];
} else {
$image = \Drupal::service('image.factory')->get($file->getFileUri());
if ($image->isValid()) {
$file_variables['width'] = $image->getWidth();
$file_variables['height'] = $image->getHeight();
}
else {
$file_variables['width'] = $file_variables['height'] = NULL;
}
}
$element['preview'] = array(
'#weight' => -10,
'#theme' => 'image_style',
'#width' => $file_variables['width'],
'#height' => $file_variables['height'],
'#style_name' => $file_variables['style_name'],
'#uri' => $file_variables['uri'],
);
// Store the dimensions in the form so the file doesn't have to be
// accessed again. This is important for remote files.
$element['width'] = array(
'#type' => 'hidden',
'#value' => $file_variables['width'],
);
$element['height'] = array(
'#type' => 'hidden',
'#value' => $file_variables['height'],
);
}
$variables['data'] = array();
foreach (Element::children($element) as $child) {
$variables['data'][$child] = $element[$child];
}
}
The solution works well, but the image module is missing a class with the #FormElement annotation. That is why the element isn't rendered properly.
Can you try with managed_file type?
'#type' => 'managed_file'
First some clarifications, then some observations and then the code that worked for me.
Clarifications:
I am using Drupal 9, but the solution proposed below may work also
for Drupal 8.
By "default temporary directory" I mean the directory defined in the following settings
file
[DrupalrootDirectory]/sites/default/settings.php
using
$settings['file_temp_path'] = '/The/Absolute/Path/To/Your/Temporary/Directory';
or defined by your operating system and that you can check in the Drupal administration
menu:
[YourSiteWebAddress]/admin/config/media/file-system
When something is written inside square brackets [], like this, [DrupalrootDirectory], it means that you should replace it with the actual name in your system, Drupal installation or custom module/file, without the square brackets.
Observations:
No need to create apriory any directories inside the default
temporary directory. They will be created automatically.
When you click the Remove button (which appears automatically as soon you upload a file in your custom form), the image file and the thumbnail files are deleted from the default temporary directory.
It does not matter if you define your default temporary directory inside the default site location,
e.g.,
[DrupalrootDirectory]/sites/default/files
or outside it, for example,
[DrupalrootDirectory]/sites/other/files
In my case, I defined it to:
[DrupalrootDirectory]/sites/default/files/temp
No need to make changes to .htaccess (in Apache server) file inside the default temporary directory or
inside
[DrupalrootDirectory]/sites/default/files
Keep them as Drupal created them.
No need to change file rights to "777" inside the default temporary directory, "775" is enough.
Check that your Drupal installation is actually creating thumbnails for images uploaded using the
administration menu:
[YourSiteWebAddress]/admin/content/media
when using the "Add media" link
[YourSiteWebAddress]/media/add/image
No need to make any other changes inside Drupal settings
file
[DrupalrootDirectory]/sites/default/settings.php
The code that worked for me:
It is based in the code published above by "Je Suis Alrick". But his code was not working for me, neither I could not find in which part of his code the thumbnail image was actually created. In my search for it, this post helped
Generate programmatically image styles with Drupal 8
So, here is the final code:
In your custom module, in the custom form file, most probably located
in:
[DrupalrootDirectory]/modules/custom/[NameOfYourCustomModule]/src/Form/[NameOfYourCustomForm].php
you add the element to be used to upload the image file:
$form['profile_image'] = [
'#type' => 'managed_file',
'#title' => t('Profile Picture'),
'#upload_validators' => array(
'file_validate_extensions' => array('gif png jpg jpeg'),
'file_validate_size' => array(25600000),
),
'#theme' => 'image_widget',
'#preview_image_style' => 'medium',
'#required' => TRUE,
];
So far, the same as in the code of "Je Suis Alrick", except that I deleted the definition for '#upload_location', so the default temporary directory will be used avoiding security complaints.
The important part here is:
the definition of the '#theme', which may be any name, but in this case is 'image_widget';
and the definition of '#preview_image_style', which must be the machine name of one of the image styles defined in your Drupal installation, that you can check in your administration
menu
[YourSiteWebAddress]/admin/config/media/image-styles
For this case the style 'medium' will be used, which is one of the image styles created by default by Drupal.
Then, in the module file of your custom module, named [NameOfYourCustomModule].module and most probably located
in:
[DrupalrootDirectory]/modules/custom/[NameOfYourCustomModule]/
You will need to paste the following code:
<?php
use Drupal\image\Entity\ImageStyle;
function [NameOfYourCustomModule]_preprocess_image_widget(&$variables) {
$element = $variables['element'];
$variables['attributes'] = array('class' => array('image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix'));
if (!empty($element['fids']['#value'])) {
$file = reset($element['#files']);
$element['file_' . $file->id()]['filename']['#suffix'] = ' <span class="file-size">(' . format_size($file->getSize()) . ')</span> ';
$file_variables = array(
'style_name' => $element['#preview_image_style'],
'uri' => $file->getFileUri(),
);
// Determine image dimensions.
if (isset($element['width']['#value']) && isset($element['height']['#value'])) {
$file_variables['width'] = $element['width']['#value'];
$file_variables['height'] = $element['height']['#value'];
} else {
$image = \Drupal::service('image.factory')->get($file->getFileUri());
if ($image->isValid()) {
$file_variables['width'] = $image->getWidth();
$file_variables['height'] = $image->getHeight();
$style = ImageStyle::load($file_variables['style_name']);
$image_uri = $file->getFileUri();
$destination = $style->buildUri($image_uri);
$style->createDerivative($image_uri, $destination);
}
else {
$file_variables['width'] = $file_variables['height'] = NULL;
}
}
$element['preview'] = array(
'#weight' => -10,
'#theme' => 'image_style',
'#width' => $file_variables['width'],
'#height' => $file_variables['height'],
'#style_name' => $file_variables['style_name'],
'#uri' => $file_variables['uri'],
);
// Store the dimensions in the form so the file doesn't have to be
// accessed again. This is important for remote files.
$element['width'] = array(
'#type' => 'hidden',
'#value' => $file_variables['width'],
);
$element['height'] = array(
'#type' => 'hidden',
'#value' => $file_variables['height'],
);
}
$variables['data'] = array();
foreach (\Drupal\Core\Render\Element::children($element) as $child) {
$variables['data'][$child] = $element[$child];
}
}
You should note that at the end of the name of the function, the name of the theme 'image_widget' is included, which tells Drupal to process your form element using the defined above function: [NameOfYourCustomModule]_preprocess_image_widget
What have I added?
The line at the
top:
use Drupal\image\Entity\ImageStyle;
And the following four lines that actually create the image thumbnail inside the default temporary directory:
$style = ImageStyle::load($file_variables['style_name']);
$image_uri = $file->getFileUri();
$destination = $style->buildUri($image_uri);
$style->createDerivative($image_uri, $destination);
With the addition of these five lines I got it working!
Nice answer thx, only change I'd make is using Token for upload location, and Bytes for file upload size, although I guess it depends on the use case. Something like the below (stripped out most of the code for the sake of simplicity.
namespace Drupal\my_module\Form;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Session\AccountProxyInterface;
use Drupal\Component\Utility\Bytes;
use Drupal\Core\Utility\Token;
class SampleForm extends FormBase
{
protected $currentUser;
protected $token;
public function __construct(AccountProxyInterface $current_user, Token $token) {
$this->currentUser = $current_user;
$this->token = $token;
}
public static function create(ContainerInterface $container)
{
return new static(
$container->get('current_user'),
$container->get('token')
);
}
/**
* {#inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$form['sample_image'] = [
'#type' => 'managed_file',
'#title' => t('Profile Picture'),
'#upload_validators' => array(
'file_validate_extensions' => array('gif png jpg jpeg'),
'file_validate_size' => file_upload_max_size() / pow(Bytes::KILOBYTE, 2) . 'M',
),
'#theme' => 'image_widget',
'#preview_image_style' => 'medium',
'#upload_location' => $this->token->replace('private://[date:custom:Y]-[date:custom:m]'),
'#required' => TRUE,
];
return $form;
}
}
Theme it to work on multiple file upload. From #Je Suis Alrick answer above.
function themename_preprocess_image_widget(&$variables) {
$element = $variables['element'];
$variables['attributes'] = array('class' => array('image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix'));
if (!empty($element['fids']['#value'])) {
foreach ($element['#files'] as $file) {
$element['file_' . $file->id()]['filename']['#suffix'] = ' <span class="file-size">(' . format_size($file->getSize()) . ')</span> ';
$file_variables = array(
'style_name' => $element['#preview_image_style'],
'uri' => $file->getFileUri(),
);
// Determine image dimensions.
if (isset($element['#value']['width']) && isset($element['#value']['height'])) {
$file_variables['width'] = $element['#value']['width'];
$file_variables['height'] = $element['#value']['height'];
} else {
$image = \Drupal::service('image.factory')->get($file->getFileUri());
if ($image->isValid()) {
$file_variables['width'] = $image->getWidth();
$file_variables['height'] = $image->getHeight();
}
else {
$file_variables['width'] = $file_variables['height'] = NULL;
}
}
$element['preview'][] = array(
'#weight' => -10,
'#theme' => 'image_style',
'#width' => $file_variables['width'],
'#height' => $file_variables['height'],
'#style_name' => $file_variables['style_name'],
'#uri' => $file_variables['uri'],
);
// Store the dimensions in the form so the file doesn't have to be
// accessed again. This is important for remote files.
$element['width'] = array(
'#type' => 'hidden',
'#value' => $file_variables['width'],
);
$element['height'] = array(
'#type' => 'hidden',
'#value' => $file_variables['height'],
);
}
}
$variables['data'] = array();
foreach (\Drupal\Core\Render\Element::children($element) as $child) {
$variables['data'][$child] = $element[$child];
}
}
Columns (both datatype time):
Start
End
End cannot be before start.
$validator
->requirePresence('end', 'create')
->notEmpty('end')
->add('end', [
'time' => [
'rule' => 'time',
'message' => 'end can only accept times.'
],
'dependency' => [
'rule' => [$this, 'endBeforeStart'],
'message' => 'end can not be before start.'
],
]);
If it is a PUT request which only contains end, the model will need to query the existing record to compare against start. If it is a PUT which contains both then it need to validate against the intended new parameter.
How does cakePHP3 do this?
private function endBeforeStart($fieldValueToBeValidated, $dataRelatedToTheValidationProcess)
{
//What goes here?
}
I can't seem to find any examples of doing this online.
I'm not quite sure and haven't tested it, but maybe this gives you some hints:
$validator
->add('end', [
'endBeforeStart' => [
'rule' => function ($value, $context) {
// If it's a POST (new entry):
if ( $context['newRecord'] == '1' ) {
// Do your comparison here
// Input values are e.g. in $context['data']['starttime']
// If end is before start:
return false;
}
// If it's a PUT (update):
else {
// If starttime is not in $context['data']['starttime']
// check for the old value in $getOldEntry
$getOldEntry = $this->getOldEntry( $context['data']['id'] );
// And do your comparison here...
// If end is before start:
return false;
}
return true;
},
'message' => 'end can not be before start.' ],
])
public function getOldEntry($id = null) {
return $this->get($id);
}
I'm also not sure if the last function has to be private or public...
I've done a bit of searching online but I have not found any answers to this question yet. I have a situation where I need a product attribute that is a decimal value and it must support negative numbers as well as positive and must also be sortable. For some reason, Magento does not have a "decimal" attribute type. The only type that uses decimal values is Price, but that doesn't support negative numbers. If I use "text" as the type, it supports whatever I want, but it doesn't sort properly because it sees the values as strings rather than floating point numbers. I have been able to work around this issue, as others have in posts I've found, by manually editing the eav_attribute table and changing 'frontend_input' from 'price' to 'text', but leaving the 'backend_type' as 'decimal'. This works great...until someone edits the attribute in the admin panel. Once you save the attribute, Magento notices that the frontend_input is 'text' and changes the 'backend_type' to 'varchar'. The only way around this that I can think of is by creating a custom attribute type, but I'm not sure where to start and I can't find any details online for this.
Has anyone else experienced this problem? If so, what have you done to correct it? If I need to create a custom attribute type, do you have any tips or can you point me at any tutorials out there for doing this?
Thanks!
What you want to do is create a custom attribute type.
This can be done by first creating a installer script (this updates the database).
startSetup();
$installer->addAttribute('catalog_product', 'product_type', array(
'group' => 'Product Options',
'label' => 'Product Type',
'note' => '',
'type' => 'dec', //backend_type
'input' => 'select', //frontend_input
'frontend_class' => '',
'source' => 'sourcetype/attribute_source_type',
'backend' => '',
'frontend' => '',
'global' => Mage_Catalog_Model_Resource_Eav_Attribute::SCOPE_WEBSITE,
'required' => true,
'visible_on_front' => false,
'apply_to' => 'simple',
'is_configurable' => false,
'used_in_product_listing' => false,
'sort_order' => 5,
));
$installer->endSetup();
After that you need to create a custom php class named:
Whatever_Sourcetype_Model_Attribute_Source_Type
And in there paste this in:
class Whatever_Sourcetype_Model_Attribute_Source_Type extends Mage_Eav_Model_Entity_Attribute_Source_Abstract
{
const MAIN = 1;
const OTHER = 2;
public function getAllOptions()
{
if (is_null($this->_options)) {
$this->_options = array(
array(
'label' => Mage::helper('sourcetype')->__('Main Product'),
'value' => self::MAIN
),
array(
'label' => Mage::helper('sourcetype')->__('Other Product'),
'value' => self::OTHER
),
);
}
return $this->_options;
}
public function toOptionArray()
{
return $this->getAllOptions();
}
public function addValueSortToCollection($collection, $dir = 'asc')
{
$adminStore = Mage_Core_Model_App::ADMIN_STORE_ID;
$valueTable1 = $this->getAttribute()->getAttributeCode() . '_t1';
$valueTable2 = $this->getAttribute()->getAttributeCode() . '_t2';
$collection->getSelect()->joinLeft(
array($valueTable1 => $this->getAttribute()->getBackend()->getTable()),
"`e`.`entity_id`=`{$valueTable1}`.`entity_id`"
. " AND `{$valueTable1}`.`attribute_id`='{$this->getAttribute()->getId()}'"
. " AND `{$valueTable1}`.`store_id`='{$adminStore}'",
array()
);
if ($collection->getStoreId() != $adminStore) {
$collection->getSelect()->joinLeft(
array($valueTable2 => $this->getAttribute()->getBackend()->getTable()),
"`e`.`entity_id`=`{$valueTable2}`.`entity_id`"
. " AND `{$valueTable2}`.`attribute_id`='{$this->getAttribute()->getId()}'"
. " AND `{$valueTable2}`.`store_id`='{$collection->getStoreId()}'",
array()
);
$valueExpr = new Zend_Db_Expr("IF(`{$valueTable2}`.`value_id`>0, `{$valueTable2}`.`value`, `{$valueTable1}`.`value`)");
} else {
$valueExpr = new Zend_Db_Expr("`{$valueTable1}`.`value`");
}
$collection->getSelect()
->order($valueExpr, $dir);
return $this;
}
public function getFlatColums()
{
$columns = array(
$this->getAttribute()->getAttributeCode() => array(
'type' => 'int',
'unsigned' => false,
'is_null' => true,
'default' => null,
'extra' => null
)
);
return $columns;
}
public function getFlatUpdateSelect($store)
{
return Mage::getResourceModel('eav/entity_attribute')
->getFlatUpdateSelect($this->getAttribute(), $store);
}
}
Hope this helps.
For further info see here.
I need to create an image upload field for posts in Magento Blog Module (AW blog).
Therefore, each post needs to contain an image.
I edited the following files:
/home/clients/websites/w_gale/public_html/gale/app/code/community/AW/Blog/Block/Manage/Blog/Edit/Tab/Form.php
added fieldset like this:
$fieldset->addField('fileinputname', 'image', array(
'label' => Mage::helper('blog')->__('Upload image'),
'required' => false,
'name' => 'fileinputname',
'required' => true,
'style' => 'height:100px;border:2px solid #999;',
));
on top of this file, in the right place, I defined form like this:
$form = new Varien_Data_Form(array(
'id' => 'edit_form',
'action' => $this->getUrl('*/*/save', array('id' => $this->getRequest()->getParam('id'))),
'method' => 'post',
'enctype' => 'multipart/form-data',
)
);
In Blogcontroller.php I added the following code, just bellow the if ($data = $this->getRequest()->getPost()) { line
if(isset($_FILES['fileinputname']['name']) && (file_exists($_FILES['fileinputname']['tmp_name']))) {
try {
$uploader = new Varien_File_Uploader('fileinputname');
$uploader->setAllowedExtensions(array('jpg','jpeg','gif','png')); // or pdf or anything
$uploader->setAllowRenameFiles(true);
$uploader->setFilesDispersion(false);
$path = Mage::getBaseDir('media') . DS ;
$uploader->save($path, $_FILES['fileinputname']['name']);
$data['imageurl'] = $_FILES['fileinputname']['name'];
} catch(Exception $e) {
}
} else {
if(isset($data['fileinputname']['delete']) && $data['fileinputname']['delete'] == 1)
$data['imageurl'] = '';
else
unset($data['fileinputname']);
}
However, the upload doesn't work. What am I doing wrong?
I added a special row in appropriate field in a database.
The frontend section displays the database value when I enter it manually.
Thanks
This code of method from data helper which uploads image. You need implement method getBaseDir() (which returns dir where you wish store your uploaded files) by yourself.
/**
* Upload image and return uploaded image file name or false
*
* #throws Mage_Core_Exception
* #param string $scope the request key for file
* #return bool|string
*/
public function uploadImage($scope)
{
$adapter = new Zend_File_Transfer_Adapter_Http();
$adapter->addValidator('ImageSize', true, $this->_imageSize);
$adapter->addValidator('Size', true, $this->_maxFileSize);
if ($adapter->isUploaded($scope)) {
// validate image
if (!$adapter->isValid($scope)) {
Mage::throwException(Mage::helper('mycompany_mymodule')->__('Uploaded image is not valid'));
}
$upload = new Varien_File_Uploader($scope);
$upload->setAllowCreateFolders(true);
$upload->setAllowedExtensions(array('jpg', 'gif', 'png'));
$upload->setAllowRenameFiles(true);
$upload->setFilesDispersion(false);
if ($upload->save($this->getBaseDir())) {
return $upload->getUploadedFileName();
}
}
return false;
}
You're using the right code. I solved the problem by using the right MYSQL data type. When I changed the data type from 'text' to 'varchar(255)' it solved the problem
And ... make sure that you add the following code:
$form = new Varien_Data_Form(array(
'id' => 'edit_form',
'action' => $this->getUrl('*/*/save', array('id' => $this->getRequest()->getParam('id'))),
'method' => 'post',
'enctype' => 'multipart/form-data',
)
);
in /app/code/community/AW/Blog/Block/Manage/Blog/Edit/Form.php
NOT: app/code/community/AW/Blog/Block/Manage/Blog/Edit/Tab/Form.php