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123 lines
3.2 KiB
PHP
123 lines
3.2 KiB
PHP
<?php
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class InfoTags_model extends CI_Model
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{
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//信息标签表
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var $it_title = '';
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var $it_memo = '';
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//信息标签关联表
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var $ic_id = '';
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var $it_id = '';
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function __construct()
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{
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parent::__construct();
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$this->HT = $this->load->database('HT', TRUE);
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}
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/**
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* 增加标签
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*/
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function add_tag()
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{
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if ($this->it_title)
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{
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//查看是否已存在标签
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$sql = "SELECT TOP 1 * from infoTags WHERE it_title = N?";
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$check = $this->HT->query($sql, array($this->it_title));
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//添加标签
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if ($check->num_rows() === 0)
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{
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$sql = "INSERT INTO infoTags (it_title, it_memo) VALUES (N?, N?)";
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$query = $this->HT->query($sql, array($this->it_title, $this->it_memo));
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return $this->HT->insert_id();
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}
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else
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{
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$row = $check->row();
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return $row->it_id;
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}
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}
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return FALSE;
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}
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/**
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* 删除标签
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*/
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function remove_tag()
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{
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if ($this->it_title)
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{
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$sql = "DELETE FROM infoTags WHERE it_title = N?";
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$query = $this->HT->query($sql, array($this->it_title));
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return 'success';
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}
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return 'fail';
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}
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/**
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* 标签列表
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*/
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function list_tag()
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{
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if ($this->ic_id)
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{
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//展示信息的标签
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$sql = "SELECT * FROM infoContentToTag INNER JOIN infoTags ON icit_it_id = it_id WHERE icit_ic_id = ?";
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$query = $this->HT->query($sql, array($this->ic_id));
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return $query->result();
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}
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else
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{
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//全部展示
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$sql = "SELECT * FROM infoTags ORDER BY it_title ASC, it_date DESC";
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$query = $this->HT->query($sql);
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return $query->result();
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}
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return 'fail';
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}
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/**
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* 添加信息与标签的关联
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*/
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function add_tag_to_content()
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{
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if ($this->ic_id && $this->it_id)
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{
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//查看是否已存在关联
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$sql = "SELECT TOP 1 * from infoContentToTag WHERE icit_ic_id = ? AND icit_it_id = ?";
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$check = $this->HT->query($sql, array($this->ic_id, $this->it_id));
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//添加关联
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if ($check->num_rows() === 0)
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{
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$sql = "INSERT INTO infoContentToTag (icit_ic_id, icit_it_id) VALUES (?, ?)";
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$query = $this->HT->query($sql, array($this->ic_id, $this->it_id));
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}
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else
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{
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return 'exist';
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}
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return 'success';
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}
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return 'fail';
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}
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/**
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* 解除信息与标签的关联
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*/
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function remove_tag_to_content()
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{
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if ($this->ic_id && $this->it_id)
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{
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$sql = "DELETE FROM infoContentToTag WHERE icit_ic_id = ? and icit_it_id = ?";
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$query = $this->HT->query($sql, array($this->ic_id, $this->it_id));
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return 'success';
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}
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return 'fail';
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}
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}
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