Reputation: 301
I'm using PHP/MySql and I'm trying to team users into pairs based on a skill that they have. I have an existing table for users, and an existing table for the teams.
For example, I executed a query which returned 6 members which needs to be paired up into a team.
SELECT * FROM users WHERE skill = 'Office'
users
id/name/skill
1/Bob/Office
2/Ted/Office
3/Tim/Office
4/Bill/Office
5/Shawn/Office
6/Gab/Office
These results must be then paired up, and the expected output should be:
teams
name/member
Office1/Bob
Office1/Ted
Office2/Tim
Office2/Bill
Office3/Shawn
Office3/Gab
Once 2 members are placed in a team, the team name should increment by one.
Any help will be greatly appreciated Thanks.
Edit: I tried this:
$results = mysql_query("SELECT * FROM users WHERE skill = 'Office'");
$numrows = mysql_num_rows($results); $name ="";
if($numrows!=0) {
while($row = mysql_fetch_assoc($results)) {
$name = $row['userName'];
}
}
//For incrementing the team name
$namectr=0;
for($ctr=0;$ctr<$results_num;$ctr++) {
if($ctr%2==0) {
$query = mysql_query("INSERT INTO teams VALUES ('Office$namectr','$name')");
$ctr++; if($ctr%2==1) {
$query = mysql_query("INSERT INTO teams VALUES (Office$namectr','$name')");
$namectr++;
}
}
}
Upvotes: 1
Views: 321
Reputation: 1422
why not try:
$result = mysql_query("SELECT * FROM users WHERE users.skill = 'office'");
$count = 0;
$sqlcount = 0;
$offcount = 1;
while ($source = mysql_fetch_array($result)) {
if ($count < 1) {
$office = $source['skill'] . $offcount;
$name = $source['name'];
$result[$sqlcount] = mysql_query("INSERT INTO teams ('name', 'member') VALUES ('$office', '$name')");
$sqlcount++;
} else if ($count >= 1) {
$offcount++;
$count = 0;
$office = $source['skill'] . $offcount;
$name = $source['name'];
$result[$sqlcount] = mysql_query("INSERT INTO teams ('name', 'member') VALUES ('$office', '$name')");
$sqlcount++;
} else {
echo "ERROR" . mysql_error();
}
}//end while
$sqlcount = 0;
while ($result[$sqlcount] != "") {
if ($source = $result) {
} else {
echo "ERROR! " . mysql_error();
}
}//end while
Upvotes: 1
Reputation: 1938
Couldn't you do your database query, then do something like the below:
$count=0;
$team=1;
$teams = array();
foreach($result as $output){
if($count % 2 == 0){
// if even number, reset count and increment position
$count=0;
$team++;
}
$teams[] = $output['skill']." ".$team." - ".$output['member'];
$count++;
}
Something like the above, but it is untested, but should work in theory.
Upvotes: 0