plugin install

wp/wp-content/plugins/acf-gravityforms-add-on/resources/FieldForV4.php

@@ -0,0 +1,197 @@
+<?php
+
+namespace ACFGravityformsField;
+
+use acf_field;
+use GFFormsModel;
+
+class FieldForV4 extends acf_field
+{
+	/**
+	 * will hold info such as dir / path
+	 *
+	 * @var $settings
+	 */
+	public $settings;
+
+	/**
+	 * will hold default field options
+	 *
+	 * @var array
+	 */
+	public $defaults;
+
+	/**
+	 * Make sure we can easily access our notices
+	 *
+	 * @var Notices
+	 */
+	public $notices;
+
+	/**
+	 * Get our forms
+	 *
+	 * @var array
+	 */
+	public $forms;
+
+	public function __construct()
+	{
+		$this->name = 'forms';
+		$this->label = __('Gravity Form', 'gravityforms');
+		$this->category = __('Relational', 'acf'); // Basic, Content, Choice, etc
+		$this->defaults = [
+			'return_format' => 'form_object',
+			'multiple'      => 0,
+			'allow_null'    => 0
+		];
+
+		// Get our notices up and running
+		$this->notices = new Notices();
+
+		// Execute the parent constructor as well
+		parent::__construct();
+	}
+
+	/**
+	 * Create extra settings for our gravityforms field. These are visible when editing a field.
+	 *
+	 * @param $field
+	 */
+	public function create_options($field)
+	{
+		// defaults?
+		$field = array_merge($this->defaults, $field);
+
+		// key is needed in the field names to correctly save the data
+		$key = $field['name'];
+
+		// Create Field Options HTML
+?>
+		<tr class="field_option field_option_<?php echo $this->name; ?>">
+			<td class="label">
+				<label><?php echo __('Return Value', 'acf'); ?></label>
+			</td>
+			<td>
+				<?php
+				do_action('acf/create_field', [
+					'type'    => 'radio',
+					'name'    => 'fields[' . $key . '][return_format]',
+					'value'   => $field['return_format'],
+					'choices' => [
+						'post_object' => __('Form Object', 'acf-gravityforms-add-on'),
+						'id' => __('Form ID', 'acf-gravityforms-add-on')
+					],
+					'layout'  => 'horizontal',
+				]); ?>
+			</td>
+		</tr>
+
+		<tr class="field_option field_option_<?php echo $this->name; ?>">
+			<td class="label">
+				<label><?php echo __('Allow Null?', 'acf'); ?></label>
+			</td>
+			<td>
+				<?php
+				do_action('acf/create_field', [
+					'type'    => 'radio',
+					'name'    => 'fields[' . $key . '][allow_null]',
+					'value'   => $field['allow_null'],
+					'choices' => [
+						1 => __('Yes', 'acf'),
+						0 => __('No', 'acf'),
+					],
+					'layout'  => 'horizontal',
+				]); ?>
+			</td>
+		</tr>
+
+		<tr class="field_option field_option_<?php echo $this->name; ?>">
+			<td class="label">
+				<label><?php echo __('Select multiple values?', 'acf'); ?></label>
+			</td>
+			<td>
+				<?php
+				do_action('acf/create_field', [
+					'type'    => 'radio',
+					'name'    => 'fields[' . $key . '][multiple]',
+					'value'   => $field['multiple'],
+					'choices' => [
+						1 => __('Yes', 'acf'),
+						0 => __('No', 'acf'),
+					],
+					'layout'  => 'horizontal',
+				]); ?>
+			</td>
+		</tr>
+<?php
+	}
+
+	/**
+	 * Render our Gravity Form field with all the forms as options
+	 *
+	 * @param $field
+	 * @return bool
+	 */
+	public function create_field($field)
+	{
+
+		if (class_exists('GFFormsModel')) {
+			$this->forms = GFFormsModel::get_forms(true, false, 'title');
+		}
+
+		// Set our defaults
+		$field = array_merge($this->defaults, $field);
+		$choices = [];
+
+		// Check if we have some valid forms
+		$fieldObject = new Field();
+		if (!$fieldObject->hasValidForms()) {
+			return false;
+		}
+
+		foreach ($this->forms as $form) {
+			$choices[$form->id] = $form->title;
+		}
+
+		// Override field settings and start rendering
+		$field['choices'] = $choices;
+		$field['type'] = 'select';
+
+		do_action('acf/create_field', $field);
+	}
+
+	/**
+	 *  This filter is applied to the $value before it is updated in the db
+	 *
+	 *  @param  $value - the value which will be saved in the database
+	 *  @param  $post_id - the $post_id of which the value will be saved
+	 *  @param  $field - the field array holding all the field options
+	 *
+	 *  @return $value - the modified value
+	 */
+	public function update_value($value, $post_id, $field)
+	{
+		// Strip empty array values
+		if (is_array($value)) {
+			$value = array_values(array_filter($value));
+		}
+
+		return $value;
+	}
+
+
+	/**
+	 * Return a form object when not empty
+	 *
+	 * @param $value
+	 * @param $postId
+	 * @param $field
+	 * @return array|bool
+	 */
+	public function format_value_for_api($value, $postId, $field)
+	{
+		$fieldObject = new Field();
+		return $fieldObject->processValue($value, $field);
+	}
+}