How can i get rank or position base highest ' gpa' and 'total' into database rows data in codeigniter?
public function fetchData() {
$data = array();
$data['fetch_data'] = $this->excel_data_insert_model->fetch_data();
$result = $data['fetch_data']->result();
foreach ($result as $row) {
//echo $row.'<br/>';
$id = $row->id;
$p_student_id = $row->stu_id;
$p_section = $row->section;
$p_gpa = $row->gpa;
$p_total = $row->total;
$x = 0;
}
}
My Answer to your raw query could be this:
Select column_name1, column_name2, MAX(gpa),MAX(total) from tbl_v1 ORDER by gpa, total desc
Also for CI
$query=$this->db->select('column_name1, column_name2, MAX(gpa),MAX(total)')->order_by('gpa,total','desc')->get('tbl_v1');
return $query;
Related
I tried different possibilities but nothing worked, in the tutorial I couldn't find an example either.
I have a method in my modelclass:
public function getlastImport($filename)
{
//$id = (int) $id;
$rowset = $this->tableGateway->select(['Path' => $filename]);
$row = $rowset->current();
if (! $row) {
throw new RuntimeException(sprintf(
'Could not find row with identifier %d',
$id
));
}
return $row;
}
I want to retrieve the last import of a given filename, so ist must be like in sql:
select max(ID) from table where filename = $filename;
But how would be the right syntax in this case?
The sql query should be
"SELECT * FROM table_name WHERE filename={$filename} ORDER BY id DESC LIMIT 1"
Use as the following in your model
public function getlastImport($filename)
{
$select = $this->tableGateway->getSql()->select();
$select->columns(array('id', 'filename', 'label'));
$select->where(array('filename' => $filename));
$select->order("id DESC");
$select->limit(1);
$result = $this->tableGateway->selectWith($select);
$row = $result->current();
if (! $row) {
throw new RuntimeException(sprintf(
'Could not find row with identifier %d',
$id
));
}
return $row;
}
Hope this would help you!
I'm trying to use PDO using the following code, I want to select the array of values for the context_list, but it returns one record, any ideas where I'm going wrong?
try {
$sql2 = "SELECT area_easting, area_northing, context_number FROM excavation.contexts";
$sth = $conn->prepare($sql2);
$sth->execute();
while ($row = $sth->fetch(PDO::FETCH_ASSOC))
{
$easting_list = $row['area_easting'];
$northing_list = $row['area_northing'];
$context_list = $row['context_number'];
}
}
catch(PDOException $e )
{
echo "Error: ".$e;
}
echo "context list: ";
echo $context_list;
A partial solution:
This worked:
$query = $conn->prepare("SELECT area_easting, area_northing, context_number FROM excavation.contexts");
$query->execute();
while($r = $query->fetch(PDO::FETCH_OBJ)){
echo $r->area_easting, '|';
echo $r->area_northing;
echo '<br/>';
}
But Now I need to make the $r->area_easting accessible to the session, but that's another question.
Your query may return several records (provided they actually exist in the table).
Your code loops through all the records (with the while loop) but the values ($easting_list, $northing_list and $context_list) are overwritten in the loop.
I suggest the following changes to your code:
$easting_list = array();
$northing_list = array();
$context_list = array();
try {
$sql2 = "SELECT area_easting, area_northing, context_number FROM excavation.contexts";
$sth = $conn->prepare($sql2);
$sth->execute();
while ($row = $sth->fetch(PDO::FETCH_ASSOC))
{
$easting_list[] = $row['area_easting'];
$northing_list[] = $row['area_northing'];
$context_list[] = $row['context_number'];
}
}
catch(PDOException $e )
{
echo "Error: ".$e;
}
echo "context list: ";
echo implode(', ', $context_list);
Now all the values are stored in 3 arrays. explode is used to print a comma-separated list of all values in $context_list array.
I have a problem and don't know how to solve it. After i run the code i didn't receive corectly a period of time. I put the code here.
I think something is wrong with table from database (i use PhpMyAdmin 4.2.0 module from EasyPhp). I put an image too to see what happens. The dates marked with red need to be at the end of table.
<?php
function data_range($first, $last, $step = '+1 day', $output - format = 'd-m-Y')
{
$dates = array();
$current = strtotime($first);
$last = strtotime($last);
while ($current <= $last)
{
$dates[] = date($output_format, $current);
$current = strtotime($step, $current);
}
foreach($dates as $zile)
{
$krr = explode('-', $zile);
var_dump($krr);
$result2 = implode('/', $krr);
echo $result2 . "<br/>";
$sql4 = "INSERT INTO studenti3 (data) VALUES ('$result2')";
$rez4 = mysql_query($sql4);
}
var_dump($dates);
}
$first = "06-04-2015";
$last = "07-05-2015";
$step = "+1day";
$output_format = 'd-m-Y';
date_range($first, $last, $step, $output_format); ?>
I want to display data from moodle database in HTML table, but for every record separate table is being displayed:
Code:
$rec=$DB->get_records_sql('SELECT * FROM `mdl_schedules`');
$table = new html_table();
$table->head = array('Date','Time', 'A' , 'B', 'C','D', 'E', 'F');
foreach ($rec as $records) {
$id = $records->id;
$scheduledatet = $records->scheduledate;
$scheduletime = $records->scheduletime;
$session = $records->s;
$venue = $records->v;
$trainer = $records->t;
$category = $records->c;
$course = $records->course;
$link = $records->link;
$table->data = array(array($scheduledatet, $scheduletime, $a,$b,$c,$d,$e,'View'));
echo html_writer::table($table);
}
Any reference or help will be much appreciated.
The echo should be outside the loop :)
}
echo html_writer::table($table);
But you will probably want to use flexible_table instead so you can use pagination.
Have a look in /admin/localplugins.php for an example.
I know this is old, but the reason you're only getting one record is you're not adding to the $table->data array. This is the code you want:
$rec=$DB->get_records('schedules');
$table = new html_table();
$table->head = array('Date','Time', 'A' , 'B', 'C','D', 'E', 'F');
foreach ($rec as $records) {
$id = $records->id;
$scheduledatet = $records->scheduledate;
$scheduletime = $records->scheduletime;
$session = $records->s;
$venue = $records->v;
$trainer = $records->t;
$category = $records->c;
$course = $records->course;
$link = $records->link;
$table->data[] = array($scheduledatet, $scheduletime, $a,$b,$c,$d,$e,'View');
}
echo html_writer::table($table);
I also changed up your query a bit. If you're just getting all of the records from a table, $DB->get_records('TABLE_NAME_WITHOUT_PREFIX'); is the way to go.
I have a table called active_plans in which there are two columns: activated_date and last_billed_at. Basically, I want to create a query that looks at these two columns like this:
select all from active_plans
where last_billed_at = null AND activated_date + 1 month = today,
or if last_billed_at + 1 month = today.
I can't seem to figure out how to do this, though.
I wound up doing something a lot different:
public function getBillToday()
{
$activePlans = $this->entityManager
->createQuery('SELECT adp FROM adp
WHERE adp.activationDate IS NOT NULL')
->getResult();
$data = array();
foreach ($activePlans as $plan) {
$recur = $plan->getPlan()->getRecurringInMonths();
$nextBillTime = strtotime('-'.$recur.' months', time());
$nextBill = date('Y-m-d', $nextBillTime);
$activationDate = $plan->getActivationDate();
$lastBilledAt = $plan->getLastBilledAt() != NULL ? $plan->getLastBilledAt()->format('Y-m-d') : 0;
if ($activationDate == $nextBill || $lastBilledAt == $nextBill) {
$data[] = $plan->getId();
}
}
return $data;
}