Databases
StackOverflow2013
Postsdbo
POOverall grade on a grade system
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POOverall grade on a grade system
    primarykey
    data
    text
    <p>I'm creating a grade system, and I've completed everything expect one. I am having trouble doing the overall grade row. It should validate all the grade rows and if it matches the criteria set a overall grade. I've made a function for it but =I can't seem to get it to work correctly. here is the code.</p> <pre><code>function change_overall_grade($username, $y1g, $y2g) { $user_id = user_id_from_username($username); $newOverallGrade = ''; $courses_sql = "SELECT `unit_id` FROM `courses` WHERE `$y1g` = 1 OR `$y2g` = 1 LIMIT 18"; $courses_query = mysql_query($courses_sql); while($row = mysql_fetch_row($courses_query)) { $unit_id = $row[0]; $unit_sql = "SELECT * FROM `unit_$unit_id` WHERE `student_id` = '$user_id'"; $unit_query = mysql_query($unit_sql); $row = mysql_fetch_row($unit_query); $overall_grade = $row[3]; $p1 = $row[5];$p2 = $row[6];$p3 = $row[7];$p4 = $row[8];$p5 = $row[9];$p6 = $row[10];$p7 = $row[11];$p8 = $row[12];$p9 = $row[13]; $m1 = $row[14];$m2 = $row[15];$m3 = $row[16];$m4 = $row[17]; $d1 = $row[18];$d2 = $row[19];$d3 = $row[20]; if($p1 == "-" || $p1 == "S" || $p1 == "N1" || $p1 == "N2" || $p1 == "N3" || $p1 == "X1" || $p1 == "X2" || $p1 == "X3" || $p2 == "-" || $p2 == "S" || $p2 == "N1" || $p2 == "N2" || $p2 == "N3" || $p2 == "X1" || $p2 == "X2" || $p2 == "X3" || $p3 == "-" || $p3 == "S" || $p3 == "N1" || $p3 == "N2" || $p3 == "N3" || $p3 == "X1" || $p3 == "X2" || $p3 == "X3" || $p4 == "-" || $p4 == "S" || $p4 == "N1" || $p4 == "N2" || $p4 == "N3" || $p4 == "X1" || $p4 == "X2" || $p4 == "X3" || $p5 == "-" || $p5 == "S" || $p5 == "N1" || $p5 == "N2" || $p5 == "N3" || $p5 == "X1" || $p5 == "X2" || $p5 == "X3" || $p6 == "-" || $p6 == "S" || $p6 == "N1" || $p6 == "N2" || $p6 == "N3" || $p6 == "X1" || $p6 == "X2" || $p6 == "X3" || $p7 == "-" || $p7 == "S" || $p7 == "N1" || $p7 == "N2" || $p7 == "N3" || $p7 == "X1" || $p7 == "X2" || $p7 == "X3" || $p8 == "-" || $p8 == "S" || $p8 == "N1" || $p8 == "N2" || $p8 == "N3" || $p8 == "X1" || $p8 == "X2" || $p8 == "X3" || $p9 == "-" || $p9 == "S" || $p9 == "N1" || $p9 == "N2" || $p9 == "N3" || $p9 == "X1" || $p9 == "X2" || $p9 == "X3") { $newOverallGrade = "NO GRADE"; } else { if($p1 == "A" || $p1 == "NA" &amp;&amp; $p2 == "A" || $p2 == "NA" &amp;&amp; $p3 == "A" || $p3 == "NA" &amp;&amp; $p4 == "A" || $p4 == "NA" &amp;&amp; $p5 == "A" || $p5 == "NA" &amp;&amp; $p6 == "A" || $p6 == "NA" &amp;&amp; $p7 == "A" || $p7 == "NA" &amp;&amp; $p8 == "A" || $p8 == "NA" &amp;&amp; $p9 == "A" || $p9 == "NA") { $newOverallGrade = "Pass"; if( $p1 == "A" || $p1 == "NA" &amp;&amp; $p2 == "A" || $p2 == "NA" &amp;&amp; $p3 == "A" || $p3 == "NA" &amp;&amp; $p4 == "A" || $p4 == "NA" &amp;&amp; $p5 == "A" || $p5 == "NA" &amp;&amp; $p6 == "A" || $p6 == "NA" &amp;&amp; $p7 == "A" || $p7 == "NA" &amp;&amp; $p8 == "A" || $p8 == "NA" &amp;&amp; $p9 == "A" || $p9 == "NA" &amp;&amp; $m1 == "A" || $m1 == "NA" &amp;&amp; $m2 == "A" || $m2 == "NA" &amp;&amp; $m3 == "A" || $m3 == "NA" &amp;&amp; $m4 == "A" || $m4 == "NA") { $newOverallGrade = "Merit"; if($p1 == "A" || $p1 == "NA" &amp;&amp; $p2 == "A" || $p2 == "NA" &amp;&amp; $p3 == "A" || $p3 == "NA" &amp;&amp; $p4 == "A" || $p4 == "NA" &amp;&amp; $p5 == "A" || $p5 == "NA" &amp;&amp; $p6 == "A" || $p6 == "NA" &amp;&amp; $p7 == "A" || $p7 == "NA" &amp;&amp; $p8 == "A" || $p8 == "NA" &amp;&amp; $p9 == "A" || $p9 == "NA" &amp;&amp; $m1 == "A" || $m1 == "NA" &amp;&amp; $m2 == "A" || $m2 == "NA" &amp;&amp; $m3 == "A" || $m3 == "NA" &amp;&amp; $m4 == "A" || $m4 == "NA" &amp;&amp; $d1 == "A" || $d1 == "NA" &amp;&amp; $d2 == "A" || $d2 == "NA" &amp;&amp; $d3 == "A" || $d3 == "NA") { $newOverallGrade = "Distinction"; } } } } $sql = "UPDATE `unit_$unit_id` SET `overall_grade` = '$newOverallGrade' WHERE `student_id` = '$user_id'"; $query = mysql_query($sql); } </code></pre> <p>} <strong><em>EDIT</em></strong> The overall grade being displayed for each subject <img src="https://i.stack.imgur.com/lbsSF.png" alt="The overall grade being displayed for each subject"></p> <p>This is the way i thought it could have been done, but I was wrong. Does anyone know what I've done wrong and willing to help?</p> <p>Thanks in advance</p> <p>Chris</p>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USChris Atwood
    1. USChris Atwood
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. COWhat exactly is the problem? Is it setting it to the wrong value? For the wrong student? Not doing anything? Crashing?
      singulars
      1. POOverall grade on a grade system
      1. USandrewsi
    2. COHave you tried echoing the values that you get?
      singulars
      1. POOverall grade on a grade system
      1. USAndrius Naruševičius
    3. COI've added a image for the overall grade being displayed.
      singulars
      1. POOverall grade on a grade system
      1. USChris Atwood
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload