Import changes from the maemo preferential voting scripts

The changes come from the SVN repository at
https://garage.maemo.org/svn/maemo2midgard/maemo-elections/vote,
revision 1433.

This commit only ports changes in the include/ subdirectory.

foundation.gnome.org/vote/include/election-sql.php

@@ -13,6 +13,7 @@ $anon_tokens_table = "election_anon_tokens";
 $tmp_tokens_table = "election_tmp_tokens";
 $votes_table = "election_votes";
 $members_table = "foundationmembers";
+$results_table = "election_results";
 
 if (is_readable ("include/localconfig.php")) {
   /* You can use such a file to have a local config for testing purpose. */
@@ -156,6 +157,7 @@ function elec_choices_get ($handle, $election_id) {
 
   $query = "SELECT * FROM " . $choices_table;
   $query .= " WHERE election_id = '".$escaped_election_id."'";
+  $query .= " ORDER BY id";
 
   $result = mysql_query ($query, $handle);
 
@@ -172,14 +174,8 @@ function elec_choices_get ($handle, $election_id) {
   return $retval;
 }
 
-function elec_verify_elections ($choices_nb, $choices) {
-  if ($choices_nb === FALSE || $choices === FALSE)
-    return FALSE;
-
-  if ($choices_nb < 1)
-    return FALSE;
-
-  if (count ($choices) < $choices_nb || count ($choices) <= 1)
+function elec_verify_elections ($choices) {
+  if ($choices === FALSE || count ($choices) <= 1)
     return FALSE;
 
   return TRUE;
@@ -204,6 +200,25 @@ function elec_get_election ($handle, $election_id) {
   return mysql_fetch_assoc ($result);
 }
 
+function elec_get_results ($handle, $election_id) {
+  global $results_table;
+
+  if ($handle === FALSE)
+    return FALSE;
+
+  $escaped_election_id = mysql_real_escape_string ($election_id, $handle);
+
+  $query = "SELECT * FROM " . $results_table; //FIXME: Don't use wildcards
+  $query .= " WHERE election_id = '".$escaped_election_id."'";
+
+  $result = mysql_query ($query, $handle);
+
+  if (!$result)
+    return FALSE;
+
+  return mysql_fetch_assoc ($result);
+}
+
 function elec_election_is_current ($election) {
   $gmdate = gmdate ("Y-m-d H:i:s");
   return ($gmdate >= $election["voting_start"] && $gmdate <= $election["voting_end"]);
@@ -223,24 +238,19 @@ function elec_election_get_type ($election) {
 
 function elec_vote_get_votes_from_post ($choices) {
   $votes_array = array ();
-
+  $index=0;
   foreach ($choices as $choice) {
-    $name = "vote".$choice["id"];
+    $index++;
+    $name = "pref".$index;
     if (isset ($_POST[$name]) && $_POST[$name] != "") {
-      array_push ($votes_array, $choice["id"]);
+      array_push ($votes_array, substr($_POST[$name],4));
     }
   }
 
   return $votes_array;
 }
 
-function elec_verify_vote_is_valid ($choices_nb, $choices, $vote, $votes_array) {
-  if ($choices_nb == 1)
-    return "";
-
-  if (count ($votes_array) > $choices_nb) {
-    return "you chose ".count ($votes_array)." answers, while you can't choose more than ".$choices_nb." answers.";
-  }
+function elec_verify_vote_is_valid ($choices, $vote, $votes_array) {
   
   return "";
 }
@@ -274,18 +284,20 @@ function elec_insert_new_anon_token ($handle, $election_id, $anon_token) {
   return mysql_insert_id ($handle);
 }
 
-function elec_insert_new_vote ($handle, $anon_token_id, $vote) {
+function elec_insert_new_vote ($handle, $anon_token_id, $vote, $preference) {
   global $votes_table;
 
   if ($handle === FALSE)
     return FALSE;
-
+  
+  error_log($vote, 0);
   $escaped_vote = mysql_real_escape_string ($vote, $handle);
   $escaped_anon_token_id = mysql_real_escape_string ($anon_token_id, $handle);
 
-  $query = "INSERT INTO " . $votes_table . " (choice_id, anon_id)";
-  $query .= " VALUES ('".$escaped_vote."', '".$escaped_anon_token_id."')";
+  $query = "INSERT INTO " . $votes_table . " (choice_id, anon_id, preference)";
+  $query .= " VALUES ('".$escaped_vote."', '".$escaped_anon_token_id."', '".$preference."')";
 
+  error_log($query, 0);
   $result = mysql_query ($query, $handle);
   if (!$result)
     return FALSE;
@@ -346,6 +358,7 @@ function elec_get_anon_tokens_for_election ($handle, $election_id) {
   return $retval;
 }
 
+/* Leaving this here as legacy code. Unused for preferential voting. */
 function elec_get_results_election ($handle, $election_id) {
   global $anon_tokens_table;
   global $votes_table;
@@ -413,14 +426,14 @@ function elec_get_votes_for_anon_token ($handle, $anon_token_id) {
 
   $escaped_anon_token_id = mysql_real_escape_string ($anon_token_id, $handle);
 
-  $query = "SELECT choice_id FROM " . $votes_table;
+  $query = "SELECT choice_id,preference FROM " . $votes_table;
   $query .= " WHERE anon_id = '".$escaped_anon_token_id."'";
   /* -1 is not a valid value: it's the default value for referenda.
    * It's a blank vote. There was a bug that let this choice be saved in the
    * votes, but we don't need it there since we already have the anonymous
    * token as a proof of the blank vote. */
   $query .= " AND choice_id != '-1'";
-  $query .= " ORDER BY choice_id";
+  $query .= " ORDER BY preference";
 
   $result = mysql_query ($query, $handle);
 
@@ -429,7 +442,7 @@ function elec_get_votes_for_anon_token ($handle, $anon_token_id) {
   } else {
     $result_array = array ();
     while ($buffer = mysql_fetch_assoc ($result)) {
-      $result_array[] = $buffer["choice_id"];
+      $result_array[] = $buffer;
     }
     $retval = $result_array;
   }

foundation.gnome.org/vote/include/schema.sql

@@ -0,0 +1,43 @@
+ CREATE TABLE `elections` (
+   `id` int(11) NOT NULL auto_increment,
+   `type` enum('elections','referendum') NOT NULL default 'elections',
+   `name` varchar(150) NOT NULL default '',
+   `voting_start` datetime default NULL,
+   `voting_end` datetime default '0000-00-00 00:00:00',
+   `choices_nb` int(11) NOT NULL default '0',
+   `question` text NOT NULL,
+   PRIMARY KEY  (`id`)
+ CREATE TABLE `election_anon_tokens` (
+   `id` int(11) NOT NULL auto_increment,
+   `anon_token` varchar(200) NOT NULL default '',
+   `election_id` int(11) NOT NULL default '0',
+   PRIMARY KEY  (`id`)
+ ) ENGINE=InnoDB AUTO_INCREMENT=903 DEFAULT CHARSET=utf8
+ CREATE TABLE `election_choices` (
+   `id` int(11) NOT NULL auto_increment,
+   `election_id` int(11) NOT NULL default '0',
+   `choice` varchar(150) NOT NULL default '',
+   PRIMARY KEY  (`id`)
+ ) ENGINE=InnoDB AUTO_INCREMENT=39 DEFAULT CHARSET=utf8 
+ CREATE TABLE `election_tmp_tokens` (
+   `election_id` int(11) NOT NULL default '0',
+   `member_id` int(11) NOT NULL default '0',
+   `tmp_token` varchar(200) NOT NULL default ''
+ ) ENGINE=InnoDB DEFAULT CHARSET=utf8
+
+/* 
+from members database we prepare anon tokens
+ then insert those anon tokens to database 
+ of course before a new election record should be created since its id is needed for anon_tokens
+ and election_choices are to be inserted
+ rest is handled by itself iirc 
+<bolsh> There's "election_votes" and "foundationmembers" too
+ I'm not sure if there's a join done between foundationmembers and the other tables
+*/
+
+CREATE TABLE `election_votes` (
+   `id` int(11) NOT NULL auto_increment,
+   `choice_id` int(11) NOT NULL default '0',
+   `anon_id` int(11) NOT NULL default '0',
+   PRIMARY KEY  (`id`)
+

foundation.gnome.org/vote/include/step2-choose.php

@@ -2,46 +2,39 @@
 
 function step2_do () {
   global $election;
-  global $choices_nb;
   global $choices;
   global $vote;
   global $votes_array;
 
   $result = "<h2>Step 2/4 - Choose your vote</h2>\n";
 
-  $result .= "<p><strong>".$election["question"]."</strong></p>\n";
-  $result .= "<p>Possible answers:</p>\n";
+  $result .= "<p>Choose your candidates in the order of your preference by ";
+  $result .= "clicking on them. Don't worry, if you click on someone by mistake ";
+  $result .= "you can correct it later. Once you are happy with the order, ";
+  $result .= "submit your vote. You will have the chance to review and confirm";
+  $result .= " your ballot on the next page.</p>";
 
-  $result .= "<div class=\"votedata\">\n";
-  if ($choices_nb == 1) {
-    $result .= "<p>\n";
-    foreach ($choices as $choice) {
-      $checked = "";
-      if ($choice["id"] == $vote) {
-        $checked = " checked=\"checked\"";
-      }
+  $result .= "<p>You can vote for as few or as many candidates as you choose. ";
+  $result .= "Your vote will be counted for your first choice candidate as ";
+  $result .= "long as he is still in the race, and when he is eliminated, your ";
+  $result .= "vote will transfer to the next preference candidate still in the ";
+  $result .= "race.</p>";
 
-      $result .= "<input type=\"radio\" name=\"vote\" value=\"".$choice["id"]."\"".$checked."> ".$choice["choice"]."<br />\n";
-    }
-    $result .= "</p>\n";
+  $result .= "<p><noscript>Note: This page requires Javascript</noscript></p>";
 
-  } else {
+  $result .= "<p>Possible choices:</p>\n";
 
-    $result .= "<p>\n";
-    foreach ($choices as $choice) {
-      $checked = "";
-      if (in_array ($choice["id"], $votes_array)) {
-        $checked = " checked=\"checked\"";
-      }
+  $result .= "<div class=\"canddata\">\n";
+  $result .= "<h3>Candidates</h3>\n";
+  $result .= "<ul id=\"candidates\">\n";
+  $result .= "</ul>\n";
+  $result .= "</div>";
+  $result .= "<div class=\"prefdata\">";
+  $result .= "<h3>Preferences</h3>\n";
+  $result .= "<ol id=\"preferences\">\n";
+  $result .= "</ol>\n";
 
-      $result .= "<input type=\"checkbox\" name=\"vote".$choice["id"]."\"".$checked."> ".$choice["choice"]."<br />\n";
-    }
-    $result .= "</p>\n";
-
-  }
   $result .= "</div>\n";
-  if ($choices_nb > 1)
-    $result .= "<p><em>You can choose up to ".$choices_nb." answers.</em></p>\n";
 
   return $result;
 }

foundation.gnome.org/vote/include/step3-confirm.php

@@ -2,7 +2,6 @@
 
 function step3_do () {
   global $election;
-  global $choices_nb;
   global $choices;
   global $vote;
   global $votes_array;
@@ -10,48 +9,28 @@ function step3_do () {
   $result = "<h2>Step 3/4 - Confirm your vote</h2>\n";
 
   $result .= "<p><strong>".$election["question"]."</strong></p>\n";
-  if (($choices_nb == 1 && $vote >= 0) ||
-      ($choices_nb > 1 && count ($votes_array) >= 1)) {
+  if (count ($votes_array) >= 1) {
     $result .= "<p>You choose to vote for:</p>\n";
 
     $result .= "<div class=\"votedata\">\n";
-    if ($choices_nb == 1) {
-
-      $choice = null;
-      foreach ($choices as $opt) {
-        if ($opt["id"] == $vote) {
-          $choice = $opt;
+    $result .= "<ol>\n";
+    foreach ($votes_array as $vote) {
+      $found = FALSE;
+      foreach ($choices as $choice) {
+        if ($choice["id"] == $vote) {
+          $result .= "<li>".$choice["choice"]."</li>\n";
+          $found = TRUE;
           break;
         }
-      }
-      if ($choice != null)
-        $result .= "<p>".$choice["choice"]."</p>\n";
-      else {
-        $result .= "<p>Unknown vote: ".$vote."</p>\n";
+      } 
+
+      if (!$found) {
+        $result .= "<li>Unknown vote: ".$vote."</li>\n";
         $error .= "There was an unkown vote: ".$vote."<br />\n";
       }
-
-    } else {
-
-      $result .= "<ul>\n";
-      foreach ($votes_array as $vote) {
-        $found = FALSE;
-        foreach ($choices as $choice) {
-          if ($choice["id"] == $vote) {
-            $result .= "<li>".$choice["choice"]."</li>\n";
-            $found = TRUE;
-            break;
-          }
-        }
-
-        if (!$found) {
-          $result .= "<li>Unknown vote: ".$vote."</li>\n";
-          $error .= "There was an unkown vote: ".$vote."<br />\n";
-        }
-      }
-      $result .= "</ul>\n";
-
     }
+    $result .= "</ol>\n";
+
     $result .= "</div>\n";
 
   } else {
@@ -60,7 +39,8 @@ function step3_do () {
     $result .= "</div>\n";
   }
 
-  $result .= "<p>To confirm this vote, please continue to the next step.</p>\n";
+  $result .= "<p>To confirm this vote, please continue to the next step. ";
+  $result .= "To modify your choice, hit the \"Back\" button in your browser.</p>\n";
 
   return $result;
 }

foundation.gnome.org/vote/include/step4-commit.php

@@ -37,7 +37,6 @@ function step4_do () {
   global $error;
   global $handle;
   global $election_id;
-  global $choices_nb;
   global $vote;
   global $votes_array;
   global $email;
@@ -64,31 +63,18 @@ function step4_do () {
     return $result;
   }
 
-  if ($choices_nb == 1) {
-
-    if ($vote != -1) {
-      //FIXME verify that $vote is valid for this election/referendum
-      $res = elec_insert_new_vote ($handle, $anon_token_id, $vote);
-
-      if (!$res) {
-        $error .= "Can not insert a vote: ".mysql_error ($handle)."<br />\n";
-        elec_sql_rollback ($handle);
-        return $result;
-      }
-    }
-
-  } else {
-
+    $index=0;
     foreach ($votes_array as $vote) {
       //FIXME verify that $vote is valid for this election/referendum
-      $res = elec_insert_new_vote ($handle, $anon_token_id, $vote);
+      $index++;
+      error_log($vote.", ".$index.", ".$anon_token_id, 0);
+      $res = elec_insert_new_vote ($handle, $anon_token_id, $vote, $index);
 
       if (!$res) {
         $error .= "Can not insert a vote: ".mysql_error ($handle)."<br />\n";
         elec_sql_rollback ($handle);
         return $result;
       }
-    }
 
   }