more changes to advertisements

added two new ad spots, bottom of post#index and post#show.
spots can be selectively activated in the booru config. by default,
only original spots are active.

app/helpers/AdvertisementsHelper.php

@@ -9,16 +9,13 @@ class AdvertisementsHelper extends Rails\ActionView\Helper
                 if ($ad->html) {
                     return $ad->html;
                 } else {
-                    return $this->contentTag("div",
+                    return $this->linkTo(
-                        $this->linkTo(
                         $this->imageTag(
                             $ad->image_url,
                             ['alt' => "Advertisement", 'width' => $ad->width, 'height' => $ad->height]
                         ),
                         $this->redirectAdvertisementPath($ad),
                         ['target' => '_blank']
-                        ),
-                        ['style' => "margin-bottom: 1em;"]
                     );
                 }
             }

app/views/post/_horizontal.php

@@ -1,2 +1,3 @@
-<?php
+<div style="margin-bottom: 1em;">
-echo $this->print_advertisement("horizontal");
+  <?= $this->print_advertisement("horizontal") ?>
+</div>

app/views/post/_vertical.php

@@ -1,2 +1,3 @@
-<?php
+<div style="margin-bottom: 1em;">
-echo $this->print_advertisement("vertical");
+  <?= $this->print_advertisement("vertical") ?>
+</div>

app/views/post/index.php

@@ -73,7 +73,7 @@
 
     <br />
 
-    <?php if (CONFIG()->can_see_ads(current_user())) : ?>
+    <?php if (CONFIG()->can_show_ad('post#index-sidebar', current_user())) : ?>
     <?= $this->partial('vertical') ?>
     <?php endif ?>
   </div>
@@ -83,8 +83,8 @@
         <?= $this->t('.ambiguous') ?><?php array_map(function($x){echo linkTo(h($x), 'wiki#show', array('title' => $x));}, $ambiguous_tags) ?>
       </div>
     <?php endif ?>
-     <?php if (CONFIG()->can_see_ads(current_user())) : ?>
+    <?php if (CONFIG()->can_show_ad('post#index-top', current_user())) : ?>
-      <?= CONFIG()->ad_code_index_bottom ?>
+      <?= $this->partial('horizontal') ?>
     <?php endif ?>
 
     <div id="quick-edit" style="display: none;" class="top-corner-float">
@@ -99,6 +99,9 @@
     <?= $this->partial("hover") ?>
     <?= $this->partial('posts', array('posts' => $this->posts)) ?>
 
+    <?php if (CONFIG()->can_show_ad('post#index-bottom', current_user())) : ?>
+      <?= $this->partial('horizontal') ?>
+    <?php endif ?>
     <div id="paginator">
       <?= $this->willPaginate($this->posts) ?>
     </div>

app/views/post/show.php

@@ -20,18 +20,23 @@
       <?= $this->partial('post/show_partials/options_panel') ?>
       <?= $this->partial('post/show_partials/related_posts_panel') ?>
  <br />
-  <?php if (CONFIG()->can_see_ads(current_user())) : ?>
+  <?php if (CONFIG()->can_show_ad('post#show-sidebar', current_user())) : ?>
     <?= $this->partial('vertical') ?>
   <?php endif ?>
     </div>
     <div class="content" id="right-col">
-    <?php if (CONFIG()->can_see_ads(current_user())) : ?>
+      <?php if (CONFIG()->can_show_ad('post#show-top', current_user())) : ?>
         <?= $this->partial('horizontal') ?>
       <?php endif ?>
+      
       <?= $this->partial('post/show_partials/image') ?>
       <?= $this->partial('post/show_partials/image_footer', ['post_id' => $this->post->id]) ?>
       <?= $this->partial('post/show_partials/edit') ?>
       <?= $this->partial('post/show_partials/comments') ?>
+      
+      <?php if (CONFIG()->can_show_ad('post#show-bottom', current_user())) : ?>
+        <?= $this->partial('horizontal') ?>
+      <?php endif ?>
     </div>
 
     <?= $this->contentFor('post_cookie_javascripts', function() { ?> 

config/default_config.php

@@ -435,6 +435,21 @@ abstract class DefaultConfig
         'similarity' => 90
     ];
     
+    /**
+     * Active advertisements spots.
+     * Remove one of them from the list and the ads in that
+     * page/place won't show.
+     * The ones commented are new, extra spots.
+     */
+    public $active_ad_spots = [
+        'post#index-sidebar',
+        'post#show-sidebar',
+        'post#show-top',
+        'post#index-top',
+        // 'post#index-bottom',
+        // 'post#show-bottom'
+    ];
+    
     # Timeout for Danbooru::http_get_streaming() (used by batch upload, similar images, etc.).
     # If this limit is reached, the file that's being downloaded will be invalid.
     # Set to 0 to wait indefinitely.
@@ -452,6 +467,18 @@ abstract class DefaultConfig
         return $this->enable_asynchronous_tasks && in_array($name, $this->active_job_tasks);
     }
     
+    /**
+     * Does a couple of checks:
+     * - If $user can see ads.
+     * - If $spot is active.
+     *
+     * @return bool
+     */
+    public function can_show_ad($spot, $user)
+    {
+        return in_array($spot, $this->active_ad_spots) && $this->can_see_ads($user);
+    }
+    
     /**
      * Parses image filename into tags.
      * Must return an array with tags or an empty value.