topic.inc

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<?
/**************************************************************
 
 Copyright (c) 2010 Sonjara, Inc
 
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 obtaining a copy of this software and associated documentation
 files (the "Software"), to deal in the Software without
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 Software is furnished to do so, subject to the following
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 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.
 
 Except as contained in this notice, the name(s) of the above 
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 without prior written authorization.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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*****************************************************************/
 
class Topic extends DataItem
{
     // Fields
     
     var $fields = array("topic_id"     =>   Number,
                              "topic"        =>   String
                              );
                              
     // Relations
     
     var $relations = array(  "Documents"    =>   Document);
                                   
     function Documents($constraints = "")
     {
          return $this->crossReference(Document, DocumentTopicXref, $constraints);
     }
     
     static function getTopicsArray()
     {
          $topics = query(Topic, "ORDER BY topic");
          
          $tarr = array();
          
          foreach($topics as $topic)
          {
               $tarr[$topic->topic] = $topic->topic;
          }
          
          return $tarr;
     }
          
     function Topic()
     {
          $this->primary_key = "topic_id";
          $this->table = "topic";
          
          $this->default_format = "{topic}";
          
          $this->DataItem(func_get_args());
     }
}
 
class DocumentTopicXref extends DataItem
{
     // Fields
     var $fields = array("document_topic_xref_id" =>   Number,
                              "document_id"                 =>   Number,
                              "topic_id"                         =>   Number);
                              
     // Relations
     
     var $relations = array(  "Document"          =>   Document,
                                   "Topic"             =>   Topic);
                                   
     function Document()
     {
          return $this->getRelated(Document);
     }
     
     function Topic()
     {
          return $this->getRelated(Topic);
     }
     
     function DocumentTopicXref()
     {
          $this->primary_key = "document_topic_xref_id";
          $this->table = "document_topic_xref";
          
          $this->DataItem(func_get_args());
     }
}
 
class GroupTopicXref extends DataItem
{
     // Fields
     var $fields = array("group_topic_id"    =>   Number,
                              "group_id"               =>   Number,
                              "topic_id"               =>   Number);
                              
     // Relations
     
     var $relations = array(  "Group"   =>   Group,
                                   "Topic"   =>   Topic);
                                   
     function Grp()
     {
          return $this->getRelated(Group);
     }
     
     function Topic()
     {
          return $this->getRelated(Topic);
     }
     
     function GroupTopicXref()
     {
          $this->primary_key = "group_topic_id";
          $this->table = "grp_topic_xref";
          
          $this->DataItem(func_get_args());
     }
}
?>