ajax based add/remove/reset tag list

git-svn-id: file:///var/lib/svn/phpfspot/trunk@16 fa6a889d-dae6-447d-9e79-4ba9a3039384

diff --git a/phpfspot.class.php b/phpfspot.class.php
index 1a344f465e66bd1b75b01a3a138e03bf59b1c4bb..379ad98f5c8b28354cc5a95b48549a443e0d5eff 100644 (file)
--- a/phpfspot.class.php
+++ b/phpfspot.class.php
@@ -10,8 +10,9 @@ class PHPFSPOT {
    var $db;
    var $tmpl;
    var $tags;
-   var $avail_photos;
+   var $avail_tags;
    var $photos;
+   var $avail_photos;
    var $current_photo;
    var $current_tags;
 
@@ -47,6 +48,9 @@ class PHPFSPOT {
 
    private function get_tags()
    {
+      $this->avail_tags = Array();
+      $count = 0;
+   
       $result = $this->db->db_query("
          SELECT id,name
          FROM tags
@@ -59,8 +63,12 @@ class PHPFSPOT {
          $tag_name = $row['name'];
 
          $this->tags[$tag_id] = $tag_name; 
+         $this->avail_tags[$count] = $tag_id;
+
+         $count++;
 
       }
+
    } // get_tags()
 
    private function get_photos()
@@ -125,6 +133,59 @@ class PHPFSPOT {
 
    } // 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()
+
 }
 
 ?>

diff --git a/phpfspot.js b/phpfspot.js
index ed19372f449a6777938c1cbcaee50fba71faeb94..4f8fd5233d1a29517d3aa4556882a776a8d96da8 100644 (file)
--- a/phpfspot.js
+++ b/phpfspot.js
@@ -3,3 +3,36 @@ function showImage(id)
    content = document.getElementById("content");
    content.innerHTML = HTML_AJAX.grab('rpc.php?action=showphoto&id=' + id);
 }
+
+function Tags(mode, id)
+{
+   if(mode == "add") {
+      // add the tag to users session
+      HTML_AJAX.grab('rpc.php?action=addtag&id=' + id);
+   }
+   else if(mode == "del") {
+      // del the tag from users session
+      HTML_AJAX.grab('rpc.php?action=deltag&id=' + id);
+   }
+   else if(mode == "reset") {
+      HTML_AJAX.grab('rpc.php?action=resettags');
+   }
+   
+   refreshAvailableTags();
+   refreshSelectedTags();
+
+}
+
+function refreshAvailableTags()
+{
+   // update available tags
+   content = document.getElementById("available_tags");
+   content.innerHTML = HTML_AJAX.grab('rpc.php?action=show_available_tags');
+}
+
+function refreshSelectedTags()
+{
+   // update selected tags
+   content = document.getElementById("selected_tags");
+   content.innerHTML = HTML_AJAX.grab('rpc.php?action=show_selected_tags');
+}

diff --git a/rpc.php b/rpc.php
index 2bb96280344ec53164e1ebc6bbea756e6854446d..d8d0743b36bacbffe93bdd1a21e9a3797e25c1d3 100644 (file)
--- a/rpc.php
+++ b/rpc.php
@@ -49,6 +49,32 @@ class PHPFSPOT_RPC {
             $fspot->tmpl->show("body.tpl");
 
             break;
+   
+         case 'show_available_tags':
+
+            $fspot->getAvailableTags();
+            break;
+
+         case 'show_selected_tags':
+
+            $fspot->getSelectedTags();
+            break;
+
+         case 'addtag':
+
+            $fspot->addTag($_GET['id']);
+            break;
+
+         case 'deltag':
+
+            $fspot->delTag($_GET['id']);
+            break;
+
+         case 'resettags':
+
+            $fspot->resetTags();
+            break;
+
       }
 
    } // process_ajax_request();

diff --git a/templates/index.tpl b/templates/index.tpl
index dfbaf6855750f48e631ccd5fb69c5ef0be14e7e4..e38a8230f11e616aa76e2323a43cbeda86176c6c 100644 (file)
--- a/templates/index.tpl
+++ b/templates/index.tpl
@@ -1,5 +1,5 @@
 {include file="header.tpl"}
- <body>
+ <body onload="refreshAvailableTags(); refreshSelectedTags();">
   <div id="logo">noch keins da</div>
   <div id="tags">
    {include file="tags.tpl"}

diff --git a/templates/tags.tpl b/templates/tags.tpl
index 52751e238907861b4b52fa768a69e7543d5c0e9a..d46ac21813a8aaae3294b17af299a0503771b418 100644 (file)
--- a/templates/tags.tpl
+++ b/templates/tags.tpl
@@ -1,6 +1,6 @@
-<div id='tag'>
  The following tags are available:<br />
-{foreach from=$tags item=tag }
- <a href="?{$tag}">{$tag}</a>
-{/foreach}
+<div id='available_tags'>
+</div>
+ The following tags have been selected: <br />
+<div id='selected_tags'>
 </div>