KarmaAction


1   /*
2    * Copyright (c) Rafael Steil
3    * All rights reserved.
4    * 
5    * Redistribution and use in source and binary forms, 
6    * with or without modification, are permitted provided 
7    * that the following conditions are met:
8    * 
9    * 1) Redistributions of source code must retain the above 
10   * copyright notice, this list of conditions and the 
11   * following  disclaimer.
12   * 2)  Redistributions in binary form must reproduce the 
13   * above copyright notice, this list of conditions and 
14   * the following disclaimer in the documentation and/or 
15   * other materials provided with the distribution.
16   * 3) Neither the name of "Rafael Steil" nor 
17   * the names of its contributors may be used to endorse 
18   * or promote products derived from this software without 
19   * specific prior written permission.
20   * 
21   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 
22   * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
23   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
24   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
25   * MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
26   * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
27   * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
28   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
29   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
30   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
31   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
32   * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
33   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
34   * IN CONTRACT, STRICT LIABILITY, OR TORT 
35   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
36   * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
37   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38   * 
39   * Created on Jan 11, 2005 11:44:06 PM
40   * The JForum Project
41   * http://www.jforum.net
42   */
43  package net.jforum.view.forum;
44  
45  import net.jforum.Command;
46  import net.jforum.JForumExecutionContext;
47  import net.jforum.SessionFacade;
48  import net.jforum.dao.DataAccessDriver;
49  import net.jforum.dao.KarmaDAO;
50  import net.jforum.dao.PostDAO;
51  import net.jforum.entities.Karma;
52  import net.jforum.entities.KarmaStatus;
53  import net.jforum.entities.Post;
54  import net.jforum.repository.PostRepository;
55  import net.jforum.repository.SecurityRepository;
56  import net.jforum.security.SecurityConstants;
57  import net.jforum.util.I18n;
58  import net.jforum.util.preferences.ConfigKeys;
59  import net.jforum.util.preferences.SystemGlobals;
60  import net.jforum.util.preferences.TemplateKeys;
61  import net.jforum.view.forum.common.PostCommon;
62  import net.jforum.view.forum.common.ViewCommon;
63  
64  /**
65   * @author Rafael Steil
66   * @version $Id: KarmaAction.java,v 1.18 2006/01/29 15:06:57 rafaelsteil Exp $
67   */
68  public class KarmaAction extends Command
69  {
70      public void insert() throws Exception  
71      {
72          if (!SecurityRepository.canAccess(SecurityConstants.PERM_KARMA_ENABLED)) {
73              this.error("Karma.featureDisabled", null);
74              return;
75          }
76  
77          int postId = this.request.getIntParameter("post_id");
78          int fromUserId = SessionFacade.getUserSession().getUserId();
79  
80          PostDAO pm = DataAccessDriver.getInstance().newPostDAO();
81          Post p = pm.selectById(postId);
82  
83          if (fromUserId == SystemGlobals.getIntValue(ConfigKeys.ANONYMOUS_USER_ID)) {
84              this.error("Karma.anonymousIsDenied", p);
85              return;
86          }
87  
88          if (p.getUserId() == fromUserId) {
89              this.error("Karma.cannotSelfVote", p);
90              return;
91          }
92  
93          KarmaDAO km = DataAccessDriver.getInstance().newKarmaDAO();
94          
95          if (!km.userCanAddKarma(fromUserId, postId)) {
96              this.error("Karma.alreadyVoted", p);
97              return;
98          }
99          
100         // Check range
101         int points = this.request.getIntParameter("points");
102         
103         if (points < SystemGlobals.getIntValue(ConfigKeys.KARMA_MIN_POINTS)
104                 || points > SystemGlobals.getIntValue(ConfigKeys.KARMA_MAX_POINTS)) {
105             this.error("Karma.invalidRange", p);
106             return;
107         }
108 
109         Karma karma = new Karma();
110         karma.setFromUserId(fromUserId);
111         karma.setPostUserId(p.getUserId());
112         karma.setPostId(postId);
113         karma.setTopicId(p.getTopicId());
114         karma.setPoints(points);
115 
116         km.addKarma(karma);
117         
118         p.setKarma(new KarmaStatus(p.getId(), points));
119         
120         if (SystemGlobals.getBoolValue(ConfigKeys.POSTS_CACHE_ENABLED)) {
121             PostRepository.update(p.getTopicId(), PostCommon.preparePostForDisplay(p));
122         }
123 
124         JForumExecutionContext.setRedirect(this.urlToTopic(p));
125     }
126 
127     private void error(String   message, Post p)
128     {
129         this.setTemplateName(TemplateKeys.KARMA_ERROR);
130 
131         if (p != null) {
132             this.context.put("message", I18n.getMessage(message, new String  [] { this.urlToTopic(p) }));
133         }
134         else {
135             this.context.put("message", I18n.getMessage(message));
136         }
137     }
138 
139     private String   urlToTopic(Post p)
140     {
141         return JForumExecutionContext.getRequest().getContextPath() + "/posts/list/" 
142             + ViewCommon.getStartPage()
143             + "/" + p.getTopicId()
144             + SystemGlobals.getValue(ConfigKeys.SERVLET_EXTENSION)
145             + "#" + p.getId();
146     }
147 
148     /**
149      * @see net.jforum.Command#list()
150      */
151     public void list() throws Exception  
152     {
153         this.setTemplateName(TemplateKeys.KARMA_LIST);
154         this.context.put("message", I18n.getMessage("invalidAction"));
155     }
156 
157     /**
158      * TODO: Make dynamic data format TODO: refactoring here to remove the duplicated code with the
159      * method above. Performs a search over the users votes between two dates.
160      * FIXME: "order_by" should not come from the HTML form representing the real db column name
161      * 
162      * @throws Exception
163      */
164     /*
165     public void searchByPeriod() throws Exception
166     {
167         SimpleDateFormat formater = new SimpleDateFormat("dd/MM/yyyy");
168         Date firstPeriod, lastPeriod;
169         if ("".equals(this.request.getParameter("first_date"))) {
170             firstPeriod = formater.parse("01/01/1970");// extreme date
171         }
172         else {
173             firstPeriod = formater.parse(this.request.getParameter("first_date"));
174         }
175         if ("".equals(this.request.getParameter("last_date"))) {
176             lastPeriod = new Date();// now
177         }
178         else {
179             lastPeriod = formater.parse(this.request.getParameter("last_date"));
180         }
181 
182         String orderField;
183         if ("".equals(this.request.getParameter("order_by"))) {
184             orderField = "total";
185         }
186         else {
187             orderField = this.request.getParameter("order_by");
188         }
189 
190         int usersPerPage = SystemGlobals.getIntValue(ConfigKeys.USERS_PER_PAGE);
191         // Load all users with your karma
192         List users = DataAccessDriver.getInstance().newKarmaDAO().getMostRatedUserByPeriod(usersPerPage, firstPeriod,
193                 lastPeriod, orderField);
194         this.context.put("users", users);
195         this.setTemplateName(TemplateKeys.KARMA_SEARCH_BYPERIOD);
196     }
197     */
198 
199     /**
200      * FIXME: The date format is not dynamic.
201      * FIXME: "order_by" should not come from the HTML form representing the real db column name
202      * 
203      * Performs a search over the users votes in a specific month.
204      * 
205      * @throws Exception
206      */
207     /*
208     public void searchByMonth() throws Exception
209     {
210         SimpleDateFormat formater = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
211         int month = Integer.parseInt(request.getParameter("month"));
212         int year = Integer.parseInt(request.getParameter("year"));
213 
214         Calendar c = Calendar.getInstance();
215         Date firstPeriod, lastPeriod;
216         firstPeriod = formater.parse("01/" + month + "/" + year+ " 00:00:00");
217         // set the Calendar with the first day of the month
218         c.setTime(firstPeriod);
219         // Now get the last day of this month.
220         lastPeriod = formater.parse(c.getActualMaximum(Calendar.DAY_OF_MONTH) + "/" + month + "/" + year +" 23:59:59");
221 
222         String orderField;
223         if ("".equals(request.getParameter("order_by")) || request.getParameter("order_by") == null) {
224             orderField = "total";
225         }
226         else {
227             orderField = this.request.getParameter("order_by");
228         }
229 
230         int usersPerPage = SystemGlobals.getIntValue(ConfigKeys.USERS_PER_PAGE);
231         // Load all users with your karma
232         List users = DataAccessDriver.getInstance().newKarmaDAO().getMostRatedUserByPeriod(usersPerPage, firstPeriod,
233                 lastPeriod, orderField);
234         this.context.put("users", users);
235         this.setTemplateName(TemplateKeys.KARMA_SEARCH_BYMONTH);
236     }
237     */
238 }
239
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