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need help to translate this code


perro88

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I was thinking of making a rate system on my site. I already made something like this on a asp site so I need some help to translate this code. Then I'll try to add it First I made a vote.php file like this one

vote.php

if(user is NOT logged)
   show a message saying he is not logged so he can't vote or just redirect the guest to login page
  
ID = parseInt(Request("ID"));    // ID= ID of a topic that will have a rate system
sql="SELECT *FROM Votes WHERE User='" + Username ID logged + "' AND ID=" + ID;    /* Will create a table Votes on the database that will have a Vote_ID auto incremented, ID(from the topic to be voted), User(ID from the user who made the vote, an vote( a 0 to 10 integer)*/
rs_aux3=novors(sql);   /*this thing was a recordset of the sql query, dunno how to make something like this on php*/
if(!rs_aux3.EOF)
    {  
        write "You already voted on this topic before" and a link to the topic ex" <a href=\"index.php?topic=" + ID + "\">Back to topic</a>");
        rs_aux3.Close();
        rs_aux3 = null;
    }
else
    {
        vote = String(Request.Form("vote"));
        sql = "INSERT INTO Votes (User,ID,vote) VALUES ('" + Logged User ID  + "', '" + ID + "','" + vote + "')";
        execsql(sql);      /* execute the query*/
        sql="SELECT COUNT(*) AS n_votes FROM Votes WHERE ID=" + ID;
        rs_aux=novors(sql);
        sql="SELECT AVG(vote) AS average FROM Votes WHERE ID=" + ID;
        rs_aux2=novors(sql);
        op=Math.round(rs_aux2.Fields.Item("average").Value*100)/100;  /* I believe I made this bcause something related with the decimal part of the average */
        sql="UPDATE topic_rating SET n_votes="+ rs_aux.Fields.Item("n_votos").Value + ", average=" + op + " WHERE ID=" + ID; /* Will create a table topic_rating on the DB with fields ID(topic ID) as key of the table and a n_votes(number of votes) and average(rate of the topic)*/
        execsql(sql); /execute update query*/
        write " Voted inserted " <a href=\"index.php?topic=" + ID + "\">Back to topic</a>");    
        rs_aux.Close();
        rs_aux = null;
        rs_aux2.Close();
        rs_aux2 = null;
        rs_aux3.Close();
        rs_aux3 = null;
    }

I need help to translate this and maybe a suggestion to create for

example two tables like these(maybe a query through phpmyadmin):

1)name:votes

.tablesvote_ID(key),ID(of the topic to be rated),user_ID(the id of

the member who voted), vote(integer from 0 to 10)

2)name:topic_rating .tables(ID(ID of the topic)(key),N-Votes(number of votes of the topic),average(rating of the topic))

 

I also need help on some database vars calling:

1) call for example the fields N_Votes and Average of the current topic to 2 variables

2) The vote form should be something like this?:

<form method="POST" action="vote.asp?ID= Current topic ID
    <select size="1" name="vote">
        for(&i=1;&i<=10;&i++)
          echo'<option value=\"', &i , '\">', &i, '</option>';
    </select>
    <input type="submit" value="OK" name="OK"></p>
</form>

thanks

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