acf_form_front{}ACF 1.0

Использование

$acf_form_front = new acf_form_front();
// use class methods

Методы

  1. public __construct()
  2. public add_form( $args = array() )
  3. public check_submit_form()
  4. public enqueue_form()
  5. public get_form( $id = '' )
  6. public pre_save_post( $post_id, $form )
  7. public render_form( $args = array() )
  8. public submit_form( $form )
  9. public validate_form( $args )
  10. public validate_save_post()

Код acf_form_front{} ACF 5.10.2

<?php
class acf_form_front {

	/** @var array An array of registered form settings */
	private $forms = array();

	/** @var array An array of default fields */
	public $fields = array();


	/*
	*  __construct
	*
	*  This function will setup the class functionality
	*
	*  @type    function
	*  @date    5/03/2014
	*  @since   5.0.0
	*
	*  @param   n/a
	*  @return  n/a
	*/

	function __construct() {

		// vars
		$this->fields = array(

			'_post_title'     => array(
				'prefix'   => 'acf',
				'name'     => '_post_title',
				'key'      => '_post_title',
				'label'    => __( 'Title', 'acf' ),
				'type'     => 'text',
				'required' => true,
			),

			'_post_content'   => array(
				'prefix' => 'acf',
				'name'   => '_post_content',
				'key'    => '_post_content',
				'label'  => __( 'Content', 'acf' ),
				'type'   => 'wysiwyg',
			),

			'_validate_email' => array(
				'prefix'  => 'acf',
				'name'    => '_validate_email',
				'key'     => '_validate_email',
				'label'   => __( 'Validate Email', 'acf' ),
				'type'    => 'text',
				'value'   => '',
				'wrapper' => array( 'style' => 'display:none !important;' ),
			),

		);

		// actions
		add_action( 'acf/validate_save_post', array( $this, 'validate_save_post' ), 1 );

		// filters
		add_filter( 'acf/pre_save_post', array( $this, 'pre_save_post' ), 5, 2 );

	}


	/*
	*  validate_form
	*
	*  description
	*
	*  @type    function
	*  @date    28/2/17
	*  @since   5.5.8
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function validate_form( $args ) {

		// defaults
		// Todo: Allow message and button text to be generated by CPT settings.
		$args = wp_parse_args(
			$args,
			array(
				'id'                    => 'acf-form',
				'post_id'               => false,
				'new_post'              => false,
				'field_groups'          => false,
				'fields'                => false,
				'post_title'            => false,
				'post_content'          => false,
				'form'                  => true,
				'form_attributes'       => array(),
				'return'                => add_query_arg( 'updated', 'true', acf_get_current_url() ),
				'html_before_fields'    => '',
				'html_after_fields'     => '',
				'submit_value'          => __( 'Update', 'acf' ),
				'updated_message'       => __( 'Post updated', 'acf' ),
				'label_placement'       => 'top',
				'instruction_placement' => 'label',
				'field_el'              => 'div',
				'uploader'              => 'wp',
				'honeypot'              => true,
				'html_updated_message'  => '<div id="message" class="updated"><p>%s</p></div>', // 5.5.10
				'html_submit_button'    => '<input type="submit" class="acf-button button button-primary button-large" value="%s" />', // 5.5.10
				'html_submit_spinner'   => '<span class="acf-spinner"></span>', // 5.5.10
				'kses'                  => true, // 5.6.5
			)
		);

		$args['form_attributes'] = wp_parse_args(
			$args['form_attributes'],
			array(
				'id'     => $args['id'],
				'class'  => 'acf-form',
				'action' => '',
				'method' => 'post',
			)
		);

		// filter post_id
		$args['post_id'] = acf_get_valid_post_id( $args['post_id'] );

		// new post?
		if ( $args['post_id'] === 'new_post' ) {

			$args['new_post'] = wp_parse_args(
				$args['new_post'],
				array(
					'post_type'   => 'post',
					'post_status' => 'draft',
				)
			);

		}

		// filter
		$args = apply_filters( 'acf/validate_form', $args );

		// return
		return $args;

	}


	/*
	*  add_form
	*
	*  description
	*
	*  @type    function
	*  @date    28/2/17
	*  @since   5.5.8
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function add_form( $args = array() ) {

		// validate
		$args = $this->validate_form( $args );

		// append
		$this->forms[ $args['id'] ] = $args;

	}


	/*
	*  get_form
	*
	*  description
	*
	*  @type    function
	*  @date    28/2/17
	*  @since   5.5.8
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function get_form( $id = '' ) {

		// bail early if not set
		if ( ! isset( $this->forms[ $id ] ) ) {
			return false;
		}

		// return
		return $this->forms[ $id ];

	}


	/*
	*  validate_save_post
	*
	*  This function will validate fields from the above array
	*
	*  @type    function
	*  @date    7/09/2016
	*  @since   5.4.0
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function validate_save_post() {

		// register field if isset in $_POST
		foreach ( $this->fields as $k => $field ) {

			// bail early if no in $_POST
			if ( ! isset( $_POST['acf'][ $k ] ) ) {
				continue;
			}

			// register
			acf_add_local_field( $field );

		}

		// honeypot
		if ( ! empty( $_POST['acf']['_validate_email'] ) ) {

			acf_add_validation_error( '', __( 'Spam Detected', 'acf' ) );

		}

	}


	/*
	*  pre_save_post
	*
	*  description
	*
	*  @type    function
	*  @date    7/09/2016
	*  @since   5.4.0
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function pre_save_post( $post_id, $form ) {

		// vars
		$save = array(
			'ID' => 0,
		);

		// determine save data
		if ( is_numeric( $post_id ) ) {

			// update post
			$save['ID'] = $post_id;

		} elseif ( $post_id == 'new_post' ) {

			// merge in new post data
			$save = array_merge( $save, $form['new_post'] );

		} else {

			// not post
			return $post_id;

		}

		// save post_title
		if ( isset( $_POST['acf']['_post_title'] ) ) {

			$save['post_title'] = acf_extract_var( $_POST['acf'], '_post_title' );

		}

		// save post_content
		if ( isset( $_POST['acf']['_post_content'] ) ) {

			$save['post_content'] = acf_extract_var( $_POST['acf'], '_post_content' );

		}

		// honeypot
		if ( ! empty( $_POST['acf']['_validate_email'] ) ) {
			return false;
		}

		// validate
		if ( count( $save ) == 1 ) {

			return $post_id;

		}

		// save
		if ( $save['ID'] ) {

			wp_update_post( $save );

		} else {

			$post_id = wp_insert_post( $save );

		}

		// return
		return $post_id;

	}


	/*
	*  enqueue
	*
	*  This function will enqueue a form
	*
	*  @type    function
	*  @date    7/09/2016
	*  @since   5.4.0
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function enqueue_form() {

		// check
		$this->check_submit_form();

		// load acf scripts
		acf_enqueue_scripts();

	}


	/*
	*  check_submit_form
	*
	*  This function will maybe submit form data
	*
	*  @type    function
	*  @date    3/3/17
	*  @since   5.5.10
	*
	*  @param   n/a
	*  @return  n/a
	*/

	function check_submit_form() {

		// Verify nonce.
		if ( ! acf_verify_nonce( 'acf_form' ) ) {
			return false;
		}

		// Confirm form was submit.
		if ( ! isset( $_POST['_acf_form'] ) ) {
			return false;
		}

		// Load registered form using id.
		$form = $this->get_form( $_POST['_acf_form'] );

		// Fallback to encrypted JSON.
		if ( ! $form ) {
			$form = json_decode( acf_decrypt( $_POST['_acf_form'] ), true );
			if ( ! $form ) {
				return false;
			}
		}

		// Run kses on all $_POST data.
		if ( $form['kses'] && isset( $_POST['acf'] ) ) {
			$_POST['acf'] = wp_kses_post_deep( $_POST['acf'] );
		}

		// Validate data and show errors.
		// Todo: Return WP_Error and show above form, keeping input values.
		acf_validate_save_post( true );

		// Submit form.
		$this->submit_form( $form );
	}


	/*
	*  submit_form
	*
	*  This function will submit form data
	*
	*  @type    function
	*  @date    3/3/17
	*  @since   5.5.10
	*
	*  @param   n/a
	*  @return  n/a
	*/

	function submit_form( $form ) {

		// filter
		$form = apply_filters( 'acf/pre_submit_form', $form );

		// vars
		$post_id = acf_maybe_get( $form, 'post_id', 0 );

		// add global for backwards compatibility
		$GLOBALS['acf_form'] = $form;

		// allow for custom save
		$post_id = apply_filters( 'acf/pre_save_post', $post_id, $form );

		// save
		acf_save_post( $post_id );

		// restore form (potentially modified)
		$form = $GLOBALS['acf_form'];

		// action
		do_action( 'acf/submit_form', $form, $post_id );

		// vars
		$return = acf_maybe_get( $form, 'return', '' );

		// redirect
		if ( $return ) {

			// update %placeholders%
			$return = str_replace( '%post_id%', $post_id, $return );
			$return = str_replace( '%post_url%', get_permalink( $post_id ), $return );

			// redirect
			wp_redirect( $return );
			exit;

		}

	}


	/*
	*  render
	*
	*  description
	*
	*  @type    function
	*  @date    7/09/2016
	*  @since   5.4.0
	*
	*  @param   $post_id (int)
	*  @return  $post_id (int)
	*/

	function render_form( $args = array() ) {

		// Vars.
		$is_registered = false;
		$field_groups  = array();
		$fields        = array();

		// Allow form settings to be directly provided.
		if ( is_array( $args ) ) {
			$args = $this->validate_form( $args );

			// Otherwise, lookup registered form.
		} else {
			$is_registered = true;
			$args          = $this->get_form( $args );
			if ( ! $args ) {
				return false;
			}
		}

		// Extract vars.
		$post_id = $args['post_id'];

		// Prevent ACF from loading values for "new_post".
		if ( $post_id === 'new_post' ) {
			$post_id = false;
		}

		// Set uploader type.
		acf_update_setting( 'uploader', $args['uploader'] );

		// Register local fields.
		foreach ( $this->fields as $k => $field ) {
			acf_add_local_field( $field );
		}

		// Append post_title field.
		if ( $args['post_title'] ) {
			$_post_title          = acf_get_field( '_post_title' );
			$_post_title['value'] = $post_id ? get_post_field( 'post_title', $post_id ) : '';
			$fields[]             = $_post_title;
		}

		// Append post_content field.
		if ( $args['post_content'] ) {
			$_post_content          = acf_get_field( '_post_content' );
			$_post_content['value'] = $post_id ? get_post_field( 'post_content', $post_id ) : '';
			$fields[]               = $_post_content;
		}

		// Load specific fields.
		if ( $args['fields'] ) {

			// Lookup fields using $strict = false for better compatibility with field names.
			foreach ( $args['fields'] as $selector ) {
				$fields[] = acf_maybe_get_field( $selector, $post_id, false );
			}

			// Load specific field groups.
		} elseif ( $args['field_groups'] ) {
			foreach ( $args['field_groups'] as $selector ) {
				$field_groups[] = acf_get_field_group( $selector );
			}

			// Load fields for the given "new_post" args.
		} elseif ( $args['post_id'] == 'new_post' ) {
			$field_groups = acf_get_field_groups( $args['new_post'] );

			// Load fields for the given "post_id" arg.
		} else {
			$field_groups = acf_get_field_groups(
				array(
					'post_id' => $args['post_id'],
				)
			);
		}

		// load fields from the found field groups.
		if ( $field_groups ) {
			foreach ( $field_groups as $field_group ) {
				$_fields = acf_get_fields( $field_group );
				if ( $_fields ) {
					foreach ( $_fields as $_field ) {
						$fields[] = $_field;
					}
				}
			}
		}

		// Add honeypot field.
		if ( $args['honeypot'] ) {
			$fields[] = acf_get_field( '_validate_email' );
		}

		// Display updated_message
		if ( ! empty( $_GET['updated'] ) && $args['updated_message'] ) {
			printf( $args['html_updated_message'], $args['updated_message'] );
		}

		// display form
		if ( $args['form'] ) : ?>
	<form <?php echo acf_esc_attrs( $args['form_attributes'] ); ?>>
			<?php
	endif;

		// Render hidde form data.
		acf_form_data(
			array(
				'screen'  => 'acf_form',
				'post_id' => $args['post_id'],
				'form'    => $is_registered ? $args['id'] : acf_encrypt( json_encode( $args ) ),
			)
		);

		?>
		<div class="acf-fields acf-form-fields -<?php echo esc_attr( $args['label_placement'] ); ?>">
			<?php echo $args['html_before_fields']; ?>
			<?php acf_render_fields( $fields, $post_id, $args['field_el'], $args['instruction_placement'] ); ?>
			<?php echo $args['html_after_fields']; ?>
		</div>
		<?php if ( $args['form'] ) : ?>
		<div class="acf-form-submit">
			<?php printf( $args['html_submit_button'], $args['submit_value'] ); ?>
			<?php echo $args['html_submit_spinner']; ?>
		</div>
	</form>
	<?php endif;
	}

}