添加 infoTags 模型

application/models/infoTags_mode.php

@@ -0,0 +1,90 @@
+<?php
+
+class InfoTags_model extends CI_Model 
+{
+    //信息标签表
+    var $it_title = '';
+    var $it_memu = '';
+    //信息标签关联表
+    var $ic_id = '';
+    var $it_id = '';
+
+    function __construct() 
+    {
+        parent::__construct();
+        $this->HT = $this->load->database('HT', TRUE);
+    }
+
+    /**
+     * 增加标签
+     */
+    function add_tag() 
+    {
+        if ($this->it_title) 
+        {
+            //查看是否已存在标签
+            $sql = "SELECT TOP 1 * from infoTags  WHERE ic_title = N?";
+            $check = $this->HT->query($sql, array($this->it_title));
+
+            //添加标签
+            if ($query->num_rows() === 0)
+            {
+                $sql = "INSERT INTO infoTags (it_title, it_memo) VALUES (N?, N?)";
+                $query = $this->HT->query($sql, array($this->it_title, $this->it_memu));
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * 删除标签
+     */
+    function remove_tag() 
+    {
+        if ($this->it_title) 
+        {
+            $sql = "DELETE FROM infoTags WHERE it_title = N?";
+            $query = $this->HT->query($sql, array($this->it_title));
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * 添加信息与标签的关联
+     */
+    function add_tag_to_content() 
+    {
+        if ($this->ic_id && $this->it_id) 
+        {
+            //查看是否已存在关联
+            $sql = "SELECT TOP 1 * from infoContentToTag  WHERE ic_id = ? AND it_id = ?";
+            $check = $this->HT->query($sql, array($this->ic_id, $this->it_id));
+            
+            //添加关联
+            if ($query->num_rows() === 0)
+            {
+                $sql = "INSERT INTO infoContentToTag (ic_id, it_id) VALUES (?, ?)";
+                $query = $this->HT->query($sql, array($this->ic_id, $this->it_id));
+            }
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * 解除信息与标签的关联
+     */
+    function remove_tag_to_content() 
+    {
+        if ($this->ic_id && $this->it_id) 
+        {
+            $sql = "DELETE FROM infoContentToTag WHERE ic_id = ? and it_id = ?";
+            $query = $this->HT->query($sql, array($this->ic_id, $this->it_id));
+            return true;
+        }
+        return false;
+    }
+
+}