article.php

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Article extends MY_Controller {

	public function author($author = null,$offset = 0)
	{
		if($author == null){
			show_404("Author not found !");
			return true;
		}

		//引入 model
		$this->load->model("UserModel");
		$this->load->model("ArticleModel");

	 	//先查詢使用者是否存在
		$user = $this->UserModel->getUserByAccount($author);
		if($user == null){
			show_404("Author not found !");
		}
		$pageSize = 20;


	    $this->load->library('pagination');
	    $config['uri_segment'] = 4;
	    $config['base_url'] = site_url('/article/author/'.$author.'/');
	    //取得總數量
	    $config['total_rows'] = $this->ArticleModel->countArticlesByUserID($user->UserID);

	    $config['per_page'] = $pageSize;

		$this->load->library('pagination');
	    $this->pagination->initialize($config);
			
	    $results = $this->ArticleModel->getArticlesByUserID($user->UserID,$offset,$pageSize);

		$this->load->view('article_author',
			Array(
				"pageTitle" => "發文系統 - ".$user->Account." 的文章列表",
				"results" => $results,
				"user" => $user,
				"pageLinks" => $this->pagination->create_links()
			)
		);
	}

	public function post(){
		if (!isset($_SESSION["user"])){//尚未登入時轉到登入頁
			redirect(site_url("/user/login")); //轉回登入頁
			return true;
		}
		$this->load->view('article_post',Array(
			"pageTitle" => "發文系統 - 發表文章"
		));	
	}

	public function posting(){

		if (!isset($_SESSION["user"])){//尚未登入時轉到登入頁
			redirect(site_url("/user/login")); //轉回登入頁
			return true;
		}

		$title = trim($this->input->post("title"));
		$content= trim($this->input->post("content"));
		
		if( $title =="" || $content =="" ){
			$this->load->view('article_post',Array(
				"pageTitle" => "發文系統 - 發表文章",
				"errorMessage" => "Title or Content shouldn't be empty,please check!" ,
				"title" => $title,
				"content" => $content
			));
			return false;
		}

		$this->load->model("ArticleModel");
		$insertID = $this->ArticleModel->insert($_SESSION["user"]->UserID,$title,$content);  //完成新增動作
		redirect(site_url("article/postSuccess/".$insertID));
	}	
	public function postSuccess($articleID){
		$this->load->view('article_success',Array(
				"pageTitle" => "發文系統 - 文章發表成功",
				"articleID" => $articleID
		));
	}

	public function view($articleID = null){
		if($articleID == null){
			show_404("Article not found !");
			return true;
		}

		$this->load->model("ArticleModel");
		//完成取資料動作
		$article = $this->ArticleModel->get($articleID);  

		if($article == null){
			show_404("Article not found !");
			return true;	
		}

		$this->load->view('article_view',Array(
			//設定網頁標題
			"pageTitle" => "發文系統 - 文章 [".$article->Title."] ", 
			"article" => $article
		));
	}

	public function edit($articleID = null){
		if (!isset($_SESSION["user"]) || $_SESSION["user"] == null ){
			//沒有登入的，直接送他去登入。
			redirect(site_url("/user/login")); 
			return true;
		}		

		if ( $articleID == null){
			show_404("Article not found !");
			return true;
		}
		

		$this->load->model("ArticleModel");
		//完成取資料動作
		$article = $this->ArticleModel->get($articleID);  

		if ($article->Author != $_SESSION["user"]->UserID ){
			show_404("Article not found !");
			//不是作者又想編輯，顯然是來亂的，送他回首頁。
			redirect(site_url("/")); 
			return true;
		}

		$this->load->view('article_edit',Array(
			"pageTitle" => "修改文章 [".$article->Title."]",
			"article" => $article
		));	
	}

	//表單送出後更新資料頁
	public function update(){
		$articleID = $this->input->post("articleID");

		//就算是進行更新動作，該做的檢查還是都不能少
		if (!isset($_SESSION["user"]) || $_SESSION["user"] == null ){
			//沒有登入的，直接送他去登入。
			redirect(site_url("/user/login")); 
			return true;
		}		

		if ( $articleID == null){
			show_404("Article not found !");
			return true;
		}
		

		$this->load->model("ArticleModel");
		//完成取資料動作
		$article = $this->ArticleModel->get($articleID);  

		if ($article->Author != $_SESSION["user"]->UserID ){
			show_404("Article not found !");
			//不是作者又想編輯，顯然是來亂的，送他回首頁。
			redirect(site_url("/")); 
			return true;
		}

		$this->ArticleModel->updateArticle(
			$articleID,
			$this->input->post("title"),
			$this->input->post("content")
		);

		//更新完後送他回文章檢視頁面
		redirect(site_url("article/view/".$articleID));

	}

}