wpfangirl · October 25, 2018 16:40 · Oct 25, 2018
diff --git a/create-image.php b/create-image.php
@@ -0,0 +1,92 @@
+<?php
+/**
+ * Create the image attachment and return the new media upload id.
+ *
+ * @author Joshua David Nelson, [email protected]
+ *
+ * @since 03.29.2017 updated to a class, utilizing code from Takuro Hishikawa's gist linked below.
+ *
+ * @see https://gist.github.com/hissy/7352933
+ * 
+ * @see http://codex.wordpress.org/Function_Reference/wp_insert_attachment#Example
+ * 
+ * @link https://joshuadnelson.com/programmatically-add-images-to-media-library/
+ */
+class JDN_Create_Media_File {
+
+	var $post_id;
+	var $image_url;
+	var $wp_upload_url;
+	var $attachment_id;
+
+	/**
+	 * Setup the class variables
+	 */
+	public function __construct( $image_url, $post_id = 0 ) {
+
+		// Setup class variables
+		$this->image_url = esc_url( $image_url );
+		$this->post_id = absint( $post_id );
+		$this->wp_upload_url = $this->get_wp_upload_url();
+		$this->attachment_id = $this->attachment_id ?: false;
+
+		return $this->create_image_id();
+
+	}
+
+	/**
+	 * Set the upload directory
+	 */
+	private function get_wp_upload_url() {
+		$wp_upload_dir = wp_upload_dir();
+		return isset( $wp_upload_dir['url'] ) ? $wp_upload_dir['url'] : false;
+	}
+
+	/**
+	 * Create the image and return the new media upload id.
+	 *
+	 * @see https://gist.github.com/hissy/7352933
+	 *
+	 * @see http://codex.wordpress.org/Function_Reference/wp_insert_attachment#Example
+	 */
+	public function create_image_id() {
+
+		if( $this->attachment_id )
+			return $this->attachment_id;
+
+		if( empty( $this->image_url ) || empty( $this->wp_upload_url ) )
+			return false;
+
+		$filename = basename( $this->image_url );
+
+		$upload_file = wp_upload_bits( $filename, null, file_get_contents( $this->image_url ) );
+
+		if ( ! $upload_file['error'] ) {
+			$wp_filetype = wp_check_filetype( $filename, null );
+			$attachment = array(
+				'post_mime_type' => $wp_filetype['type'],
+				'post_parent' => $this->post_id,
+				'post_title' => preg_replace('/\.[^.]+$/', '', $filename),
+				'post_content' => '',
+				'post_status' => 'inherit'
+			);
+			$attachment_id = wp_insert_attachment( $attachment, $upload_file['file'], $this->post_id );
+
+			if( ! is_wp_error( $attachment_id ) ) {
+
+				require_once( ABSPATH . "wp-admin" . '/includes/image.php' );
+				require_once( ABSPATH . 'wp-admin/includes/media.php' );
+
+				$attachment_data = wp_generate_attachment_metadata( $attachment_id, $upload_file['file'] );
+				wp_update_attachment_metadata( $attachment_id,  $attachment_data );
+
+				$this->attachment_id = $attachment_id;
+
+				return $attachment_id;
+			}
+		}
+
+		return false;
+
+	} // end function get_image_id
+}
diff --git a/functions.php b/functions.php
@@ -0,0 +1,21 @@
+<?php 
+/** 
+* Sets an image uploaded through the Gravity Forms upload field (not the post image field) as the post featured image.
+* Works with the regular upload field and Ajax Upload for Gravity Forms: https://wordpress.org/plugins/ajax-upload-for-gravity-forms/
+*
+* @author Sallie Goetsch, [email protected]
+*
+* Uses Joshua David Nelson's JDN_Create_Media_File class. 
+*
+* @see https://gist.github.com/joshuadavidnelson/164a0a0744f0693d5746#file-create-image-id-php
+* 
+*/
+
+add_action('gform_after_create_post_4', 'set_post_featured', 10, 3 ); // Substitute your form ID for the '4'
+function set_post_featured($post_id, $entry, $form) {
+    $post = get_post($post_id);
+    $image_url = rgar($entry, '55'); // Substitute your upload field ID for the '55'
+    $create_image = new JDN_Create_Media_File( $image_url, $post_id ); // See create-image.php for this class
+    $image_id = $create_image->attachment_id;
+    set_post_thumbnail($post_id, $image_id);
+}
No results found