limit displayed photos within index to tag selection
[phpfspot.git] / phpfspot.class.php
index 1dd3b9369e33f87d377c83fb2a624fd863ce1072..168d08134fc5b3461a24b23d222dc47bca7802de 100644 (file)
@@ -10,8 +10,9 @@ class PHPFSPOT {
    var $db;
    var $tmpl;
    var $tags;
    var $db;
    var $tmpl;
    var $tags;
-   var $avail_photos;
+   var $avail_tags;
    var $photos;
    var $photos;
+   var $avail_photos;
    var $current_photo;
    var $current_tags;
 
    var $current_photo;
    var $current_tags;
 
@@ -20,7 +21,7 @@ class PHPFSPOT {
       $this->cfg = new PHPFSPOT_CFG;
 
       $this->db = new PHPFSPOT_DB(&$this, $this->cfg->db);
       $this->cfg = new PHPFSPOT_CFG;
 
       $this->db = new PHPFSPOT_DB(&$this, $this->cfg->db);
-      $this->tmpl = new PHPFSPOT_TMPL(&$this);
+      $this->tmpl = new PHPFSPOT_TMPL($this);
 
       $this->get_tags();
       $this->get_photos();
 
       $this->get_tags();
       $this->get_photos();
@@ -37,18 +38,8 @@ class PHPFSPOT {
 
    public function show()
    {
 
    public function show()
    {
-      if(isset($this->current_photo)) {
-         $this->tmpl->assign('image_url', 'phpfspot_img.php?idx='. $this->avail_photos[$this->current_photo] ."&width=". $this->cfg->photo_width);
-      }
-
-      if($this->current_photo > 0) {
-         $this->tmpl->assign('previous_url', "javascript:showImage(". ($this->current_photo-1) .");");
-      }
-
-      if($this->current_photo < count($this->avail_photos)) {
-         $this->tmpl->assign('next_url', "javascript:showImage(". ($this->current_photo+1) .");");
-      }
 
 
+      $this->prepare_single_photo($this->current_photo);
       $this->tmpl->assign('tags', $this->tags);
       $this->tmpl->show("index.tpl");
 
       $this->tmpl->assign('tags', $this->tags);
       $this->tmpl->show("index.tpl");
 
@@ -57,6 +48,9 @@ class PHPFSPOT {
 
    private function get_tags()
    {
 
    private function get_tags()
    {
+      $this->avail_tags = Array();
+      $count = 0;
+   
       $result = $this->db->db_query("
          SELECT id,name
          FROM tags
       $result = $this->db->db_query("
          SELECT id,name
          FROM tags
@@ -69,8 +63,12 @@ class PHPFSPOT {
          $tag_name = $row['name'];
 
          $this->tags[$tag_id] = $tag_name; 
          $tag_name = $row['name'];
 
          $this->tags[$tag_id] = $tag_name; 
+         $this->avail_tags[$count] = $tag_id;
+
+         $count++;
 
       }
 
       }
+
    } // get_tags()
 
    private function get_photos()
    } // get_tags()
 
    private function get_photos()
@@ -119,6 +117,109 @@ class PHPFSPOT {
 
    } // translate_path
 
 
    } // translate_path
 
+   public function prepare_single_photo($photo)
+   {
+      if(isset($photo)) {
+         $this->tmpl->assign('image_url', 'phpfspot_img.php?idx='. $this->avail_photos[$photo] ."&amp;width=". $this->cfg->photo_width);
+      }
+
+      if($photo > 0) {
+         $this->tmpl->assign('previous_url', "javascript:showImage(". ($photo-1) .");");
+      }
+
+      if($photo < count($this->avail_photos)) {
+         $this->tmpl->assign('next_url', "javascript:showImage(". ($photo+1) .");");
+      }
+
+   } // prepare_single_photo()
+
+   public function getAvailableTags()
+   {
+      foreach($this->avail_tags as $tag)
+      {
+         if(isset($_SESSION['selected_tags']) && in_array($tag, $_SESSION['selected_tags']))
+            continue;
+
+         // return all available (= not selected) tags
+         print "<a href=\"javascript:Tags('add', ". $tag .");\">". $this->tags[$tag] ."</a>&nbsp;";
+
+      }
+
+   } // getAvailableTags()
+
+   public function getSelectedTags()
+   {
+      foreach($this->avail_tags as $tag)
+      {
+         // return all selected tags
+         if(isset($_SESSION['selected_tags']) && in_array($tag, $_SESSION['selected_tags'])) {
+            print "<a href=\"javascript:Tags('del', ". $tag .");\">". $this->tags[$tag] ."</a>&nbsp;";
+         }
+
+      }
+
+      print "<a href=\"javascript:Tags('reset', 0);\">Reset Tags</a>";
+
+   } // getSelectedTags()
+
+   public function addTag($tag)
+   {
+      if(!isset($_SESSION['selected_tags']))
+         $_SESSION['selected_tags'] = Array();
+
+      array_push($_SESSION['selected_tags'], $tag);
+   
+   } // addTag()
+
+   public function delTag($tag)
+   {
+      if(isset($_SESSION['selected_tags'])) {
+         $key = array_search($tag, $_SESSION['selected_tags']);
+         unset($_SESSION['selected_tags'][$key]);
+      }
+
+   } // delTag()
+
+   public function resetTags()
+   {
+      unset($_SESSION['selected_tags']);
+
+   } // resetTags()
+
+   public function getAllTagPhotos()
+   {  
+      $selected = "";
+      foreach($_SESSION['selected_tags'] as $tag)
+         $selected.= $tag .",";
+      $selected = substr($selected, 0, strlen($selected)-1);
+
+      $tagged_photos = Array();
+
+      $result = $this->db->db_query("
+         SELECT DISTINCT photo_id
+         FROM photo_tags
+         WHERE tag_id IN (". $selected .")
+      ");
+
+      while($row = $this->db->db_fetch_object($result)) {
+         array_push($tagged_photos, $row['photo_id']);
+      }
+
+
+      return $tagged_photos;
+
+   } // getAllTagPhotos()
+
+   public function showPhotoIndex()
+   {
+
+      foreach($this->getAllTagPhotos() as $photo)
+      {
+         print "<img src=\"phpfspot_img.php?idx=". $photo ."&amp;width=". $this->cfg->thumb_width ."\" /><br />\n";
+      }
+
+   } // showPhotoIndex()
+
 }
 
 ?>
 }
 
 ?>