Import multiple image folders

Hi all,

I coded this hack today but slightly differently : in the “Import Folder” tab, I added a checkbox in front of each folder in the folder tree. So, you can easily choose the folders instead of typing a comma separated list.

My hack involves 3 files :

• /wp-content/plugins/nextcellent-gallery-nextgen-legacy/admin/ajax.php –> adding of checkbox (and some dirty inline CSS to align checkbox)
• /wp-content/plugins/nextcellent-gallery-nextgen-legacy/admin/addgallery.php –> managing of the array of checkbox (and some typos)
• /wp-content/plugins/nextcellent-gallery-nextgen-legacy/admin/functions.php –> adding of function import_galleries($folders_list) which is mainly a copy of import_gallery($galleryfolder) with a “foreach” and hack for the thumbnails creation

The first hack in the old post had a bug : the thumbnails are created for only one gallery of the list.

My hack works better : I’ve imported almost 100 galleries and created +3250 thumbnails in only one shot. The thumbnails creation is currently running and will take 4 hours ??

In NextCellent, the thumbnails are created via Ajax : there is no timeout problem. The max execution time of PHP could be perhaps problematic for the creation of galleries in database, so I recommand to import folders by chunks of 10 or 20.

Here are the diffs for NextCellent 1.9.16 :

--- ajax_original.php
+++ ajax.php
@@ -270,7 +270,7 @@
                     continue;

                                if ( file_exists($root . $dir . $file) && $file != '.' && $file != '..' && is_dir($root . $dir . $file) ) {
-                                       echo "<li class=\"directory collapsed\"><a href=\"#\" rel=\"" . esc_html($dir . $file) . "/\">" . esc_html($file) . "</a></li>";
+                                       echo "<li class=\"directory collapsed\" style=\"background-position:1px;display: block;padding-left:20px;text-indent:0px\"><input style=\"position:relative;top:2px;padding: 0;margin:0;float:left;vertical-align:bottom;*overflow: hidden;\" type=\"checkbox\" name=\"multiplefolder[]\" value=\"" . esc_html($dir . $file) . "\"><a href=\"#\" style=\"\" rel=\"" . esc_html($dir . $file) . "/\">" . esc_html($file) . "</a></li>";
                                }
                        }

--- addgallery_original.php
+++ addgallery.php
@@ -57,9 +57,12 @@
                if ( !nggGallery::current_user_can( 'NextGEN Import image folder' ))
                        wp_die(__('Cheatin’ uh?'));

-               $galleryfolder = $_POST['galleryfolder'];
-               if ( ( !empty($galleryfolder) ) AND ($defaultpath != $galleryfolder) )
-                       nggAdmin::import_gallery($galleryfolder);
+                       $folders_list = $_POST['multiplefolder'];
+                       if(empty($folders_list)) {
+                               $folders_list[] = $_POST['galleryfolder'];
+                       }
+
+                       nggAdmin::import_galleries($folders_list);
        }

        if ( isset($_POST['uploadimage']) ){
@@ -377,7 +380,7 @@
                        $tabs['zipupload'] = __('ZIP file', 'nggallery');

         if ( wpmu_enable_function('wpmuImportFolder') && nggGallery::current_user_can( 'NextGEN Import image folder' ) )
-                       $tabs['importfolder'] = __('Import folder', 'nggallery');
+                       $tabs['importfolder'] = __('Import folder(s)', 'nggallery');

        $tabs = apply_filters('ngg_addgallery_tabs', $tabs);

@@ -452,7 +455,7 @@
     function tab_importfolder() {
     ?>
        <!-- import folder -->
-       <h3><?php _e('Import an image folder', 'nggallery') ;?></h3>
+       <h3><?php _e('Import one or more image folders', 'nggallery') ;?></h3>
                <form name="importfolder" id="importfolder_form" method="POST" action="<?php echo $this->filepath.'#importfolder'; ?>" accept-charset="utf-8" >
                <?php wp_nonce_field('ngg_addgallery') ?>
                        <table class="form-table">

--- functions_original.php
+++ functions.php
@@ -223,6 +223,117 @@

        }

+
+       /**
+        * nggAdmin::import_galleries()
+        * TODO: Check permission of existing thumb folder & images
+        *
+        * @class nggAdmin
+        * @param array $folders_list contains an array of relatives paths to the galleries themselves
+        * @return void
+        */
+       static function import_galleries($folders_list) {
+
+               global $wpdb, $ngg, $user_ID;
+
+               // get the current user ID
+               get_currentuserinfo();
+
+               $defaultpath = $ngg->options['gallerypath'];
+               $imageslistforthumbnails = array();
+               foreach ($folders_list as $galleryfolder) {
+                       if ( ( !empty($galleryfolder) ) AND ($defaultpath != $galleryfolder) ) {
+
+                               $created_msg = '';
+
+                               // remove trailing slash at the end, if somebody use it
+                               $galleryfolder = untrailingslashit($galleryfolder);
+                               $gallerypath = WINABSPATH . $galleryfolder;
+
+                               if (!is_dir($gallerypath)) {
+                                       nggGallery::show_error(__('Directory', 'nggallery').' <strong>' . esc_html( $gallerypath ) .'</strong> '.__('doesn`t exist!', 'nggallery'));
+                                       return ;
+                               }
+
+                               // read list of images
+                               $new_imageslist = nggAdmin::scandir($gallerypath);
+
+                               if (empty($new_imageslist)) {
+                                       nggGallery::show_message(__('Directory', 'nggallery').' <strong>' . esc_html( $gallerypath ) . '</strong> '.__('contains no pictures', 'nggallery'));
+                                       return;
+                               }
+
+                               // check & create thumbnail folder
+                               if ( !nggGallery::get_thumbnail_folder($gallerypath) )
+                                       return;
+
+                               // take folder name as gallery name
+                               $galleryname = basename($galleryfolder);
+                               $galleryname = apply_filters('ngg_gallery_name', $galleryname);
+
+                               // check for existing gallery folder
+                               $gallery_id = $wpdb->get_var("SELECT gid FROM $wpdb->nggallery WHERE path = '$galleryfolder' ");
+
+                               if (!$gallery_id) {
+                                       // now add the gallery to the database
+                                       $gallery_id = nggdb::add_gallery( $galleryname, $galleryfolder, '', 0, 0, $user_ID );
+                                       if (!$gallery_id) {
+                                               nggGallery::show_error(__('Database error. Could not add gallery!','nggallery'));
+                                               return;
+                                       }
+                                       $created_msg = _n( 'Gallery', 'Galleries', 1, 'nggallery' ) . ' <strong>' . esc_html( $galleryname ) . '</strong> ' . __('successfully created!','nggallery') . '<br />';
+                               }
+
+                               // Look for existing image list
+                               $old_imageslist = $wpdb->get_col("SELECT filename FROM $wpdb->nggpictures WHERE galleryid = '$gallery_id' ");
+
+                               // if no images are there, create empty array
+                               if ($old_imageslist == NULL)
+                                       $old_imageslist = array();
+
+                               // check difference
+                               $new_images = array_diff($new_imageslist, $old_imageslist);
+
+                               // all images must be valid files
+                               foreach($new_images as $key => $picture) {
+
+                                       // filter function to rename/change/modify image before
+                                       $picture = apply_filters('ngg_pre_add_new_image', $picture, $gallery_id);
+                                       $new_images[$key] = $picture;
+
+                                       if (!@getimagesize($gallerypath . '/' . $picture) ) {
+                                               unset($new_images[$key]);
+                                               @unlink($gallerypath . '/' . $picture);
+                                       }
+                               }
+
+                               // add images to database
+                               $image_ids = nggAdmin::add_Images($gallery_id, $new_images);
+
+                               //add the preview image if needed
+                               nggAdmin::set_gallery_preview ( $gallery_id );
+
+                               // Add images IDs to $imageslistforthumbnails
+                               $imageslistforthumbnails = array_merge($imageslistforthumbnails, $image_ids);
+                               //nggAdmin::do_ajax_operation( 'create_thumbnail' , $image_ids, __('Create new thumbnails','nggallery') );
+
+                               //TODO:Message will not shown, because AJAX routine require more time, message should be passed to AJAX
+                               $message  = $created_msg . count($image_ids) .__(' picture(s) successfully added','nggallery');
+                               $message .= ' [<a href="' . admin_url() . 'admin.php?page=nggallery-manage-gallery&mode=edit&gid=' . $gallery_id . '" >';
+                               $message .=  __('Edit gallery','nggallery');
+                               $message .= '</a>]';
+
+                               nggGallery::show_message($message);
+                       }
+               }
+
+               // now create ALL thumbnails
+               nggAdmin::do_ajax_operation( 'create_thumbnail' , $imageslistforthumbnails, __('Create new thumbnails','nggallery') );
+
+               return;
+       }
+
+
        /**
         * Scan folder for new images
         *

What a great idea with the check box!
It’ll be a few days before I can play around with this and report back, but thanks ever so much.

Any chance you can post the full code of the edited files so I can just copy paste and upload? This + – stuff has lost me already lol.

Another feature missing on nextcellent is bulk opitmize images on (manage) galleries page and (edit) gallery page with EWWW Image Optimizer.

Also a bug when manually editing a thumb doesn’t obey the quality setting, file size is huge. I just did two thumbs that where 12KB and 17KB, after manual edit they are 45KB and 56KB. Big problem for me as I need to edit all preview thumbs and it makes the album page load time huge.

Should I start new threads for these?

Ok forget the full code, I figured it out after a few errors.

Great hack, uploading galleries now on a test site, gonna push it to max importing 60 galleries and see if max execution time of PHP causes problems.

I forgot to mention the bug with edit thumb isn’t unique to nextcellent, its the same on nextgen 1.9.13.

Cheers.

Will this hack be added on the next update?

I don’t know if WPGetReady has gotten around to testing and/or adding this.

You can always send a pull request to speed things up a little if you want: https://bitbucket.org/wpgetready/nextcellent