View source
<?php
namespace Drupal\views_json_source\Plugin\views\filter;
use Drupal\views\Plugin\views\filter\FilterPluginBase;
use Drupal\Core\Form\FormStateInterface;
class ViewsJsonFilter extends FilterPluginBase {
public function defineOptions() {
$options = parent::defineOptions();
$options['key'] = [
'default' => '',
];
return $options;
}
public function operators() {
$operators = [
'=' => [
'title' => $this
->t('Is equal to'),
'short' => $this
->t('='),
'method' => 'opEqual',
'values' => 1,
],
'!=' => [
'title' => $this
->t('Is not equal to'),
'short' => $this
->t('!='),
'method' => 'opEqual',
'values' => 1,
],
'contains' => [
'title' => $this
->t('Contains'),
'short' => $this
->t('contains'),
'method' => 'opContains',
'values' => 1,
],
'word' => [
'title' => $this
->t('Contains any word'),
'short' => $this
->t('has word'),
'method' => 'opContainsWord',
'values' => 1,
],
'allwords' => [
'title' => $this
->t('Contains all words'),
'short' => $this
->t('has all'),
'method' => 'opContainsWord',
'values' => 1,
],
'starts' => [
'title' => $this
->t('Starts with'),
'short' => $this
->t('begins'),
'method' => 'opStartsWith',
'values' => 1,
],
'not_starts' => [
'title' => $this
->t('Does not start with'),
'short' => $this
->t('not_begins'),
'method' => 'opNotStartsWith',
'values' => 1,
],
'ends' => [
'title' => $this
->t('Ends with'),
'short' => $this
->t('ends'),
'method' => 'opEndsWith',
'values' => 1,
],
'not_ends' => [
'title' => $this
->t('Does not end with'),
'short' => $this
->t('not_ends'),
'method' => 'opNotEndsWith',
'values' => 1,
],
'not' => [
'title' => $this
->t('Does not contain'),
'short' => $this
->t('!has'),
'method' => 'opNotLike',
'values' => 1,
],
'shorterthan' => [
'title' => $this
->t('Length is shorter than'),
'short' => $this
->t('shorter than'),
'method' => 'opShorterThan',
'values' => 1,
],
'longerthan' => [
'title' => $this
->t('Length is longer than'),
'short' => $this
->t('longer than'),
'method' => 'opLongerThan',
'values' => 1,
],
'regular_expression' => [
'title' => $this
->t('Regular expression'),
'short' => $this
->t('regex'),
'method' => 'opRegex',
'values' => 1,
],
];
if (!empty($this->definition['allow empty'])) {
$operators += [
'empty' => [
'title' => $this
->t('Is empty (NULL)'),
'method' => 'opEmpty',
'short' => $this
->t('empty'),
'values' => 0,
],
'not empty' => [
'title' => $this
->t('Is not empty (NOT NULL)'),
'method' => 'opEmpty',
'short' => $this
->t('not empty'),
'values' => 0,
],
];
}
return $operators;
}
public function operatorOptions($which = 'title') {
$options = [];
foreach ($this
->operators() as $id => $info) {
$options[$id] = $info[$which];
}
return $options;
}
protected function valueForm(&$form, FormStateInterface $form_state) {
$which = 'all';
if (!empty($form['operator'])) {
$source = ':input[name="options[operator]"]';
}
if ($exposed = $form_state
->get('exposed')) {
$identifier = $this->options['expose']['identifier'];
if (empty($this->options['expose']['use_operator']) || empty($this->options['expose']['operator_id'])) {
$which = in_array($this->operator, $this
->operatorValues(1)) ? 'value' : 'none';
}
else {
$source = ':input[name="' . $this->options['expose']['operator_id'] . '"]';
}
}
if ($which == 'all' || $which == 'value') {
$form['value'] = [
'#type' => 'textfield',
'#title' => $this
->t('Value'),
'#size' => 30,
'#default_value' => $this->value,
];
if (!empty($this->options['expose']['placeholder'])) {
$form['value']['#attributes']['placeholder'] = $this->options['expose']['placeholder'];
}
$user_input = $form_state
->getUserInput();
if ($exposed && !isset($user_input[$identifier])) {
$user_input[$identifier] = $this->value;
$form_state
->setUserInput($user_input);
}
if ($which == 'all') {
foreach ($this
->operatorValues(1) as $operator) {
$form['value']['#states']['visible'][] = [
$source => [
'value' => $operator,
],
];
}
}
}
if (!isset($form['value'])) {
$form['value'] = [
'#type' => 'value',
'#value' => NULL,
];
}
}
protected function operatorValues($values = 1) {
$options = [];
foreach ($this
->operators() as $id => $info) {
if (isset($info['values']) && $info['values'] == $values) {
$options[] = $id;
}
}
return $options;
}
public function buildOptionsForm(&$form, FormStateInterface $form_state) {
parent::buildOptionsForm($form, $form_state);
$form['key'] = [
'#title' => $this
->t('Key Chooser'),
'#description' => $this
->t('choose a key'),
'#type' => 'textfield',
'#default_value' => $this->options['key'],
'#required' => TRUE,
];
}
public function query() {
$this->query
->addFilter($this);
}
public function generate() {
$operator = $this->options['operator'];
$key = $this->options['key'];
$value = $this->options['value'];
return [
$key,
$operator,
$value,
];
}
}