class Tablefield in TableField 8.2
Same name in this branch
- 8.2 src/Utility/Tablefield.php \Drupal\tablefield\Utility\Tablefield
- 8.2 src/Element/Tablefield.php \Drupal\tablefield\Element\Tablefield
Provides a form element for tabular data.
Plugin annotation
@FormElement("tablefield");
Hierarchy
- class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
- class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
- class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
- class \Drupal\tablefield\Element\Tablefield
- class \Drupal\Core\Render\Element\FormElement implements FormElementInterface
- class \Drupal\Core\Render\Element\RenderElement implements ElementInterface
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
Expanded class hierarchy of Tablefield
1 string reference to 'Tablefield'
1 #type use of Tablefield
- TablefieldWidget::formElement in src/
Plugin/ Field/ FieldWidget/ TablefieldWidget.php - Returns the form for a single field widget.
File
- src/
Element/ Tablefield.php, line 15
Namespace
Drupal\tablefield\ElementView source
class Tablefield extends FormElement {
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#cols' => 5,
'#rows' => 5,
'#lock' => FALSE,
'#locked_cells' => [],
'#input_type' => 'textfield',
'#rebuild' => FALSE,
'#import' => FALSE,
'#process' => [
[
$class,
'processTablefield',
],
],
'#theme_wrappers' => [
'form_element',
],
'#addrow' => FALSE,
'#add_row' => 0,
];
}
/**
* Processes a checkboxes form element.
*/
public static function processTablefield(&$element, FormStateInterface $form_state, &$complete_form) {
$parents = $element['#parents'];
$value = is_array($element['#value']) ? $element['#value'] : [];
// Check if the input_type is one of the allowed types.
$input_type = in_array($element['#input_type'], [
'textarea',
'textfield',
]) ? $element['#input_type'] : 'textfield';
// String to uniquely identify DOM elements.
$id = implode('-', $element['#parents']);
// This is being set in rebuild and import ajax calls.
$storage = NestedArray::getValue($form_state
->getStorage(), $element['#parents']);
// Fetch addrow value.
if ($storage && isset($storage['tablefield']['rebuild'])) {
$element['#cols'] = $storage['tablefield']['rebuild']['cols'];
$element['#rows'] = $storage['tablefield']['rebuild']['rows'];
}
$element['#tree'] = TRUE;
$element['tablefield'] = [
'#type' => 'fieldset',
'#attributes' => [
'class' => [
'form-tablefield',
],
],
'#prefix' => '<div id="tablefield-' . $id . '-wrapper">',
'#suffix' => '</div>',
];
$element['tablefield']['table'] = [
'#type' => 'table',
];
// Assign value.
$rows = isset($element['#rows']) ? $element['#rows'] : \Drupal::config('tablefield.settings')
->get('rows');
$cols = isset($element['#cols']) ? $element['#cols'] : \Drupal::config('tablefield.settings')
->get('cols');
for ($i = 0; $i < $rows; $i++) {
for ($ii = 0; $ii < $cols; $ii++) {
if (!empty($element['#locked_cells'][$i][$ii]) && !empty($element['#lock'])) {
$element['tablefield']['table'][$i][$ii] = [
'#type' => 'item',
'#value' => $element['#locked_cells'][$i][$ii],
'#title' => $element['#locked_cells'][$i][$ii],
];
}
else {
$cell_value = isset($value[$i][$ii]) ? $value[$i][$ii] : '';
$element['tablefield']['table'][$i][$ii] = [
'#type' => $input_type,
'#maxlength' => 2048,
'#size' => 0,
'#attributes' => [
'class' => [
'tablefield-row-' . $i,
'tablefield-col-' . $ii,
],
'style' => 'width:100%',
],
'#default_value' => $cell_value,
];
}
}
}
// To change number of rows.
if (!empty($element['#addrow'])) {
$element['tablefield']['addrow']['row_value'] = [
'#title' => t('How many rows'),
'#type' => 'hidden',
'#default_value' => $rows,
'#value' => $rows,
];
$element['tablefield']['addrow']['addrow'] = [
'#type' => 'submit',
'#value' => t('Add Row'),
'#name' => 'tablefield-addrow-' . $id,
'#attributes' => [
'class' => [
'tablefield-addrow',
],
],
'#submit' => [
[
get_called_class(),
'submitCallbackRebuild',
],
],
'#limit_validation_errors' => [
array_merge($parents, [
'tablefield',
'rebuild',
'cols',
]),
array_merge($parents, [
'tablefield',
'rebuild',
'rows',
]),
array_merge($parents, [
'tablefield',
'rebuild',
'rebuild',
]),
],
'#ajax' => [
'callback' => 'Drupal\\tablefield\\Element\\Tablefield::ajaxCallbackRebuild',
'progress' => [
'type' => 'throbber',
'message' => NULL,
],
'wrapper' => 'tablefield-' . $id . '-wrapper',
'effect' => 'fade',
],
];
}
// If no rebuild, we pass along the rows/cols as a value. Otherwise, we will
// provide form elements to specify the size and ajax rebuild.
if (empty($element['#rebuild'])) {
$element['tablefield']['rebuild'] = [
'#type' => 'value',
'cols' => [
'#type' => 'value',
'#value' => $cols,
],
'rows' => [
'#type' => 'value',
'#value' => $rows,
],
];
}
else {
$element['tablefield']['rebuild'] = [
'#type' => 'details',
'#title' => t('Change number of rows/columns.'),
'#open' => FALSE,
];
$element['tablefield']['rebuild']['cols'] = [
'#title' => t('How many Columns'),
'#type' => 'number',
'#size' => 5,
'#default_value' => $cols,
'#min' => 1,
];
$element['tablefield']['rebuild']['rows'] = [
'#title' => t('How many Rows'),
'#type' => 'number',
'#size' => 5,
'#default_value' => $rows,
'#min' => 1,
];
$element['tablefield']['rebuild']['rebuild'] = [
'#type' => 'submit',
'#value' => t('Rebuild Table'),
'#name' => 'tablefield-rebuild-' . $id,
'#attributes' => [
'class' => [
'tablefield-rebuild',
],
],
'#submit' => [
[
get_called_class(),
'submitCallbackRebuild',
],
],
'#limit_validation_errors' => [
array_merge($parents, [
'tablefield',
'rebuild',
'cols',
]),
array_merge($parents, [
'tablefield',
'rebuild',
'rows',
]),
array_merge($parents, [
'tablefield',
'rebuild',
'rebuild',
]),
],
'#ajax' => [
'callback' => 'Drupal\\tablefield\\Element\\Tablefield::ajaxCallbackRebuild',
'progress' => [
'type' => 'throbber',
'message' => NULL,
],
'wrapper' => 'tablefield-' . $id . '-wrapper',
'effect' => 'fade',
],
];
}
// Allow import of a csv file.
if (!empty($element['#import'])) {
$element['tablefield']['import'] = [
'#type' => 'details',
'#title' => t('Import from CSV'),
'#open' => FALSE,
];
$element['tablefield']['import']['csv'] = [
'#name' => 'files[' . $id . ']',
'#title' => 'File upload',
'#type' => 'file',
];
$element['tablefield']['import']['import'] = [
'#type' => 'submit',
'#value' => t('Upload CSV'),
'#name' => 'tablefield-import-' . $id,
'#attributes' => [
'class' => [
'tablefield-rebuild',
],
],
'#submit' => [
[
get_called_class(),
'submitCallbackRebuild',
],
],
'#limit_validation_errors' => [
array_merge($parents, [
'tablefield',
'import',
'csv',
]),
array_merge($parents, [
'tablefield',
'import',
'import',
]),
],
'#ajax' => [
'callback' => 'Drupal\\tablefield\\Element\\Tablefield::ajaxCallbackRebuild',
'progress' => [
'type' => 'throbber',
'message' => NULL,
],
'wrapper' => 'tablefield-' . $id . '-wrapper',
'effect' => 'fade',
],
];
}
return $element;
}
/**
* AJAX callback to rebuild the number of rows/columns.
*
* The basic idea is to descend down the list of #parent elements of the
* triggering_element in order to locate the tablefield inside of the $form
* array.
*
* That is the element that we need to return.
*
* @param array $form
* Form array.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* Form state object.
*/
public static function ajaxCallbackRebuild(array $form, FormStateInterface $form_state) {
$triggering_element = $form_state
->getTriggeringElement();
// Go as deep as 'tablefield' key, but stop there (two more keys follow).
$parents = array_slice($triggering_element['#array_parents'], 0, -2, TRUE);
$rebuild = NestedArray::getValue($form, $parents);
// We don't want to re-send the format/_weight options.
unset($rebuild['format']);
unset($rebuild['_weight']);
// Set row value to default only if there is Add Row button clicked.
$op = (string) $triggering_element['#value'];
if ($op === 'Add Row') {
$rebuild['rebuild']['rows']['#value'] = $rebuild['rebuild']['rows']['#default_value'];
}
return $rebuild;
}
/**
* Submit handler.
*
* @param array $form
* Form array.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* Form state object.
*/
public static function submitCallbackRebuild(array $form, FormStateInterface $form_state) {
// Check what triggered this. We might need to rebuild or to import.
$triggering_element = $form_state
->getTriggeringElement();
$id = implode('-', array_slice($triggering_element['#parents'], 0, -3, TRUE));
$parents = array_slice($triggering_element['#parents'], 0, -2, TRUE);
$value = $form_state
->getValue($parents);
if (isset($triggering_element['#name']) && $triggering_element['#name'] == 'tablefield-rebuild-' . $id || isset($triggering_element['#name']) && $triggering_element['#name'] == 'tablefield-addrow-' . $id) {
$parents[] = 'rebuild';
if (isset($triggering_element['#name']) && $triggering_element['#name'] == 'tablefield-addrow-' . $id) {
$value['rebuild']['rows']++;
}
NestedArray::setValue($form_state
->getStorage(), $parents, $value['rebuild']);
\Drupal::messenger()
->addStatus(t('Table structure rebuilt.'), FALSE);
}
elseif (isset($triggering_element['#name']) && $triggering_element['#name'] == 'tablefield-import-' . $id) {
// Import CSV.
$imported_tablefield = static::importCsv($id);
if ($imported_tablefield) {
$form_state
->setValue($parents, $imported_tablefield);
$input = $form_state
->getUserInput();
NestedArray::setValue($input, $parents, $imported_tablefield);
$form_state
->setUserInput($input);
$parents[] = 'rebuild';
NestedArray::setValue($form_state
->getStorage(), $parents, $imported_tablefield['rebuild']);
}
}
$form_state
->setRebuild();
}
/**
* Helper function to import data from a CSV file.
*
* @param string $form_field_name
* Field name.
*
* @return mixed
* Table array or FALSE.
*/
private static function importCsv($form_field_name) {
$files = \Drupal::request()->files
->get('files');
$file_upload = $files[$form_field_name];
if (empty($file_upload)) {
\Drupal::messenger()
->addError(t('Select a CSV file to upload.'));
return FALSE;
}
if ($file_upload
->getClientOriginalExtension() != 'csv') {
\Drupal::messenger()
->addError(t('Only files with the following extensions are allowed: %files-allowed.', [
'%files-allowed' => 'csv',
]));
return FALSE;
}
if (!empty($file_upload) && ($handle = fopen($file_upload
->getPathname(), 'r'))) {
// Checking the encoding of the CSV file to be UTF-8.
$encoding = 'UTF-8';
if (function_exists('mb_detect_encoding')) {
$file_contents = file_get_contents($file_upload
->getPathname());
$encodings = [
'UTF-8',
'ISO-8859-1',
'WINDOWS-1251',
];
\Drupal::moduleHandler()
->alter('tablefield_encodings', $encodings);
$encodings_list = implode(',', $encodings);
$encoding = mb_detect_encoding($file_contents, $encodings_list);
}
// Populate CSV values.
$tablefield = [];
$max_cols = 0;
$rows = 0;
$separator = \Drupal::config('tablefield.settings')
->get('csv_separator');
while (($csv = fgetcsv($handle, 0, $separator)) != FALSE) {
foreach ($csv as $value) {
$tablefield['table'][$rows][] = self::convertEncoding($value, $encoding);
}
$cols = count($csv);
if ($cols > $max_cols) {
$max_cols = $cols;
}
$rows++;
}
fclose($handle);
$tablefield['rebuild']['cols'] = $max_cols;
$tablefield['rebuild']['rows'] = $rows;
\Drupal::messenger()
->addMessage(t('Successfully imported @file', [
'@file' => $file_upload
->getClientOriginalName(),
]));
return $tablefield;
}
\Drupal::messenger()
->addError(t('There was a problem importing @file.', [
'@file' => $file_upload
->getClientOriginalName(),
]));
return FALSE;
}
/**
* Helper function to detect and convert strings not in UTF-8 to UTF-8.
*
* @param string $data
* The string which needs converting.
* @param string $encoding
* The encoding of the CSV file.
*
* @return string
* UTF encoded string.
*/
protected static function convertEncoding($data, $encoding) {
// Converting UTF-8 to UTF-8 will not work.
if ($encoding == 'UTF-8') {
return $data;
}
// Try convert the data to UTF-8.
if ($encoded_data = Unicode::convertToUtf8($data, $encoding)) {
return $encoded_data;
}
// Fallback on the input data.
return $data;
}
}
Members
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
DependencySerializationTrait:: |
protected | property | An array of entity type IDs keyed by the property name of their storages. | |
DependencySerializationTrait:: |
protected | property | An array of service IDs keyed by property name used for serialization. | |
DependencySerializationTrait:: |
public | function | 1 | |
DependencySerializationTrait:: |
public | function | 2 | |
FormElement:: |
public static | function | Adds autocomplete functionality to elements. | |
FormElement:: |
public static | function | #process callback for #pattern form element property. | |
FormElement:: |
public static | function | #element_validate callback for #pattern form element property. | |
FormElement:: |
public static | function |
Determines how user input is mapped to an element's #value property. Overrides FormElementInterface:: |
15 |
MessengerTrait:: |
protected | property | The messenger. | 29 |
MessengerTrait:: |
public | function | Gets the messenger. | 29 |
MessengerTrait:: |
public | function | Sets the messenger. | |
PluginBase:: |
protected | property | Configuration information passed into the plugin. | 1 |
PluginBase:: |
protected | property | The plugin implementation definition. | 1 |
PluginBase:: |
protected | property | The plugin_id. | |
PluginBase:: |
constant | A string which is used to separate base plugin IDs from the derivative ID. | ||
PluginBase:: |
public | function |
Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface:: |
|
PluginBase:: |
public | function |
Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface:: |
|
PluginBase:: |
public | function |
Gets the definition of the plugin implementation. Overrides PluginInspectionInterface:: |
3 |
PluginBase:: |
public | function |
Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface:: |
|
PluginBase:: |
public | function | Determines if the plugin is configurable. | |
PluginBase:: |
public | function | Constructs a \Drupal\Component\Plugin\PluginBase object. | 92 |
RenderElement:: |
public static | function | Adds Ajax information about an element to communicate with JavaScript. | |
RenderElement:: |
public static | function | Adds members of this group as actual elements for rendering. | |
RenderElement:: |
public static | function | Form element processing handler for the #ajax form property. | 1 |
RenderElement:: |
public static | function | Arranges elements into groups. | |
RenderElement:: |
public static | function |
Sets a form element's class attribute. Overrides ElementInterface:: |
|
StringTranslationTrait:: |
protected | property | The string translation service. | 1 |
StringTranslationTrait:: |
protected | function | Formats a string containing a count of items. | |
StringTranslationTrait:: |
protected | function | Returns the number of plurals supported by a given language. | |
StringTranslationTrait:: |
protected | function | Gets the string translation service. | |
StringTranslationTrait:: |
public | function | Sets the string translation service to use. | 2 |
StringTranslationTrait:: |
protected | function | Translates a string to the current language or to a given language. | |
Tablefield:: |
public static | function | AJAX callback to rebuild the number of rows/columns. | |
Tablefield:: |
protected static | function | Helper function to detect and convert strings not in UTF-8 to UTF-8. | |
Tablefield:: |
public | function |
Returns the element properties for this element. Overrides ElementInterface:: |
|
Tablefield:: |
private static | function | Helper function to import data from a CSV file. | |
Tablefield:: |
public static | function | Processes a checkboxes form element. | |
Tablefield:: |
public static | function | Submit handler. |